Lamons Gasket & Fastener User Manual

Gasket & Fastener Handbook

A Technical Guide To Gasketing & Bolted Flanges

About Lamons

Lamons is one of the largest gasket and bolt suppliers in the world,

commied to quality and local service. We have 6 manufacturing and 21 sales and services branches posioned all around the world combined with many licensees and distributors. We are strategically located to provide customers with the widest selecon of gasket materials and fastener stock ready for immediate delivery. Lamons’ various locaons feature leading technology and state of the art manufacturing facilies capable of producing engineered products to custom specicaons serving the rening, chemical, power generaon, oshore, subsea, petrochemical (upstream and downstream), and pulp and paper industries, among others.

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Table of Contents

Introduction

Why Gaskets are Used • Effecting A Seal • Gasket Seating Flange Types • Flange Finish • Material Considerations

Chapter 1 : Gasket Selection

Section 1: Non-Metallic Gaskets

Elastomers 17

PTFE Products 19

Compressed Non-Asbestos 23

High Temperature Sheet Products 38

Soft Gasket Dimensions 39

Section 2: Semi-Metallic Gaskets

CorruKammTM Gaskets & Dimensions

Kammpro le

Spiral Wound Gaskets & Dimensions 65

Corrugated Metal Gaskets & Dimensions

Metal / Double Jacketed Gaskets & Dimensions 109

Section 3: Metallic Gaskets

Ring Joints & Dimensions 115

Lens Ring Dimensions 126

Specialty Machined Products 127

Gaskets & Dimensions 53

105

Section 4: IsoTekTM Isolation Gaskets & Kits

Defender

IsoGuard

IsoMate

Sleeves and Washers 141 Installation • Torque Values • Sugested Media

Sealing - Isolating Gasket 128

FS Sealing - Isolating Gasket 131

Sealing - Isolating Gasket 136

Sealing - Isolating Gasket 139

145

Chapter 2: Gasket Installation

Installation and Bolting Practices 153

Bolt Torque Sequence 160

Trouble Shooting Leaking Joints 165

Chapter 3: Technical & Design

ASME Section VIII, Design Consideration for Bolted Flange Connections 169

Bolt Load Formulas 172

Notation Symbols and De nitions 173

Common Metals Description 177

Bolt Reference Charts for ASME B16.5 Flanges 180

Bolt Reference Charts for ASME B16.47 A and B Flanges

Torque Chart 184

182

Chapter 4: Appendix

Chemical Resistance • Galvanic Corrosion • Temperature Conversion Hardness Conversion • Pipe Dimensions & Weights • Circumferences & Areas of Circles • Fastener Details

187

Lamons Gasket Company makes no expressed or implied warranty or representation whatsoever concerning the statements and information set forth in this handbook and expressly disclaims any liability for direct, incidental or consequential damages arising from injury to persons or products resulting directly or indirectly from the use of, or reliance upon, any statement or information set forth in this handbook.

The content of this handbook is the property of Lamons Gasket Company and is not to be reproduced in any form without permission of Lamons.

Lamons is a Company of

Revision Febuary 2016

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Introduction

The cost of leaky joints in industry today is staggering. Out-of-pocket costs run into billions of dollars annually in lost production, waste of energy, loss of product and, most recently, impact on the environment. These problems are increasing, not decreasing. It behooves all of us to consolidate our knowledge and experience to solve or at least minimize these problems. This publication is being produced because we, as gasket and fastener manufacturers and

suppliers, are constantly called upon to solve sealing problems after the fact. Too often we nd insufcient time and attention has been given to:

• Proper design of anged joint;

• Installation procedures; and,

• Selection of the optimum gasket material required to solve a particular sealing problem.

We will endeavor to outline in this publication those areas we believe to be essential in a properly designed, installed and maintained gasketed joint.

We believe most people involved with the design, installation, and maintenance of gasketed joints realize that no such thing as “zero” leakage can be achieved. Whether or not a joint is “tight” depends on the sophistication of the methods used to measure leakage. In certain applications the degree of leakage may be perfectly acceptable if one drop of water per minute is noted at the gasketed joint. Another requirement is that no bubbles would be observed if the gasketed joint was subjected to an air or gas test underwater. A still more stringent inspection would require passing a mass spectrometer test. The rigidity of any test

method would be determined by:

• The hazard of the material being conned;

• Loss of critical materials in a process ow;

• Impact on the environment should a particular uid escape into the atmosphere; and,

• Danger of re or of personal injury.

All of these factors dictate proper attention must be given to:

• Design of ange joints or closures;

• Proper selection of gasket type;

• Proper gasket material; and,

• Proper installation procedures.

Care in these areas will ensure that the best technology and planning goes into the total package and will minimize operating costs, pollution of the environment and hazards to employees and the general public.

Why Gaskets are Used

Gaskets are used to create a static seal between two stationary members of a mechanical assembly and to maintain that seal under operating conditions, which may vary dependent upon changes in pressures and temperatures. If it were possible to have perfectly mated

 anges and if it were possible to maintain an intimate contact of these perfectly mated  anges

throughout the extremes of operating conditions, a gasket would not be required.

This is virtually impossible either because of:

• The size of the vessel and/or the  anges;

• The dif culty in maintaining such extremely smooth  ange  nishes during handling and assembly;

• Corrosion and erosion of the  ange surface during operations; and,

• The sheer number of  anged joints in a typical industrial setting, and commercial

implications.

As a consequence, relatively inexpensive gaskets are used to provide the sealing element in these mechanical assemblies. In most cases, the gasket provides a seal by utilizing external

forces to  ow the gasket material into the imperfections between the mating surfaces. It

follows then that in a properly designed gasket closure, three major considerations must be taken into account in order for a satisfactory seal to be achieved.

• Suf cient force must be available to initially seat the gasket. Stated this way, adequate means must be provided to  ow the gasket into the imperfections in the gasket seating

surfaces.

• Suf cient forces must be available to maintain a residual stress on the gasket under

operating conditions to ensure that the gasket will be in continuous intimate contact with the gasket seating surfaces to prevent leakage.

• The selection of the gasket material must be such that it will withstand the pressures exerted against the gasket, satisfactorily resist the entire temperature range to which the

closure will be exposed and withstand corrosive attack of the con ned medium.

Effecting a Seal

A seal is affected by compressing the gasket material and causing it to  ow into the

imperfections on the gasket seating surfaces so that intimate contact is made between the gasket and the seating surfaces.

There are four different methods that may be used either singly or in combination to achieve

this unbroken barrier:

1. Compression

This is the most common method of effecting a seal on a  ange joint and the compression force is normally applied by bolting;

2. Attrition Is a combination of a dragging action combined with compression, such as in a spark plug

gasket where the spark plug is turned down on a gasket that is both compressed and

screwed in to the  ange;

3. Heat An example is the case of sealing a ball and valve joint on cast iron pipe by means of

molten lead. Molten lead is poured, then is tamped into place using a tamping tool and a

hammer; and,

4. Gasket Lip Expansion

This is a phenomenon that would occur due to edge swelling when the gasket would

be affected by con ned  uid. Elastomeric compounds affected by con ned  uids, such

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as solvents, cause the gasket material to swell and increase the interaction of the gasket

against the ange faces.

Generally, gaskets are called upon to effect a seal across the faces of contact with the anges.

Permeation of the media through the body of the gasket is also a possibility depending on

material, conned media, and acceptable leakage rate.

Compression Attrition

Gasket Seating

There are two major factors to be considered with regard to gasket seating:

First, the gasket itself. The ASME Unred Pressure Vessel Code Section VIII, Division 1 denes

minimum design seating stresses for a variety of gasket types and materials. These design seating stresses range from zero psi for so-called self-sealing gasket types such as low

durometer elastomers and O-rings to 26,000 psi (179 MPa) to properly seat solid at metal

gaskets. Between these two extremes there is a multitude of types and materials available to

the designer enabling them to make a selection based upon the specic operating conditions

under investigation.

Second, the other major factor to take into consideration must be the surface nish of the

gasket seating surface. As a general rule, it is necessary to have a relatively rough gasket seating surface for elastomeric and PTFE gaskets on the order of magnitude of 500 micro

inches. Solid metal gaskets normally require a surface nish not rougher than 63 micro inches.

Semi-metallic gaskets, such as spiral wound gaskets, fall between these two general types. The reason for the difference is that with non-metallic gaskets such as rubber, there must be

sufcient roughness on the gasket seating surfaces to bite into the gasket, thereby preventing

excessive extrusion and increasing resistance to gasket blowout. In the case of solid metal

gaskets, extremely high unit loads are required to ow the gasket into imperfections on

the gasket seating surfaces. This requires that the gasket seating surfaces be as smooth as possible to ensure an effective seal. Spiral wound gaskets require some surface roughness to prevent excessive radial slippage of the gasket under compression. The characteristics of

the type of gasket being used dictate the proper ange surface nish that must be taken into consideration by the ange designer, and there is no such thing as a single optimum gasket surface nish for all types of gaskets. The problem of the proper nish for gasket seating surface is further complicated by the type of the ange design. For example, a totally enclosed

facing such as tongue and groove will permit the use of a much smoother gasket seating surface than can be tolerated with a raised face.

Flange Types

A ange is used to join pipe, valves, or a vessel within a system. The most common anges

used in industrial applications follow. When applying gasket and sealing components to these

anges, the user must take into consideration sizing limitations, available clamp load, optimum surface nish, and gasket placement to minimize ange rotation. Pressure ratings for ASME standard anges are classied by pressure class of 150, 300, 400, 600, 900, 1500 and 2500.

The most common terminology used is the pound reference, although the more formal

reference is by class, such as class 150 ange. ASME requires that each ange be stamped with

the manufacturer’s name, nominal pipe size, pressure classi cation,  ange facing, bore, material

designation, ring gasket number (when using a ring type joint  ange facing) and heat number or

code.

Raised Face Flange

Raised Face  anges are the most common type used in industrial applications due to their versatility in gasket compatibility, robust construction that prevents  ange rotation under

load and the unitized design.

Flat Face Flange

Mating faces of both  anges are  at across the entire face both inside and outside the bolts. These uncon ned gaskets require a mechanical stop to control compression height, such as

a spiral wound gasket, should be designed with this consideration.

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Tongue and Groove Flange

Compressibility characteristics of the conned design need to be taken into consideration when applying gaskets to this ange style to ensure ange surfaces do not meet and prevent

over-compression on the gasket. The groove width is typically not wider than 1/16” (1.5 mm) over the tongue width to control gasket compression and creep relaxation due to gasket migration. The gasket dimensions will typically match the tongue dimensions.

Male - Female or Recessed Groove Flange

Compressibility characteristics need to be taken into consideration when applying gaskets

to this ange style to ensure ange surfaces do not meet and prevent over compression on

the gasket.

Lap Joint and Slip on Flange

A lap joint  ange and slip on  ange are very similar in that they are typically associated

with non-critical applications and systems that require frequent dismantling for inspection.

The slip on  ange is bored slightly larger than the OD of the matching pipe. The pipe slips into the  ange prior to welding both inside and outside to prevent leaks. The lap joint has a

curved radius at the bore and face to accommodate a lap joint stub end.

Lap Joint Flange

Slip On Flange

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Socket Welding Flange

The ange is similar to the slip on ange, except it has a bore and a counter bore. The counter

is slightly larger than the OD of matching pipe, allowing the pipe to be inserted. A restriction is built into the bottom of the bore, which acts as a shoulder for the pipe to rest on, and has

the same ID of the matching pipe. The ow is not restricted in any direction.

Ring Type Joint (RT J)

Very often used for high pressure applications, ring type joints utilize octagonal or oval shaped

ring gaskets that are ideally softer than the ange material. The gasket is conned in the joint, where surface nish is critical for the traditional metal to metal seal.

The Impact of Flange Finish on Gasket Performance

Inner Ring

Outer Ring

Winding Metal

Filler Material

ASME B16.20 or applicable specication

A critical and fundamental aspect of sealing is the level of friction between the  ange and gasket surfaces. The level of roughness characteristic of the  ange faces can have a dramatic

effect on gasket creep relaxation, blow out resistance and bolted joint tightness. Dependent

upon the type of gasket that is being used in the connection, different surface  nishes can be

utilized to optimize gasket performance.

As a general rule, metal gaskets and those that have less conformable surfaces require a

very smooth surface  nish. Given the creep resistance and structural stability of most metal

gaskets, the two mating surfaces can create a very tight and reliable seal. Alignment, parallelism

and  ange  nish must be within speci ed limits in order to achieve an optimal result. Metal

gaskets such as solid metal and jacketed designs offer very little forgiveness in regards to

 ange  nish, and bolting and assembly de ciencies. A typical surface  nish recommendation

for these types of metal contact seals is 64 AARH/RMS or smoother.

Soft gaskets such as compressed  ber sheet, that are more compressible, can be more forgiving in regards to alignment and parallelism of the  ange. However, these designs are more susceptible to creep relaxation and movement while under a load. The  ange surface  nish can play a critical role in the gasket’s service life and long term reliability. A smooth surface  nish will not create the necessary friction between these mating surfaces, allowing a

non-reinforced gasket design to be more susceptible to creep under load. This creep would

translate to a loss in bolted joint tightness and potential leakage. A rougher surface  nish is

generally recommended for soft, non-reinforced materials to create this necessary friction,

which lends to stability and tightness between the mating surfaces. A typical surface  nish

recommendation for soft, non-reinforced materials is 125-250 AARH/RMS or rougher.

Flange Finish Definition and Common Terminology

Raised and  at  ange facings are machined with serrations; serrations may be either phonographic or concentric. The industry standard is a phonographic serrated  nish. The facing  nish is judged by visual comparison with Roughness Average (Ra) standards. Ra is

stated in microinches (µin) or micrometers (µm) and is shown as an Arithmetic Average Roughness Height (AARH) or Root Mean Square (RMS). AARH and RMS are different methods of calculation giving essentially the same result and are used interchangeably. The

more common  nishes are represented in the illustration below. Normally the manufacturer furnishes the “Stock Finish” unless the purchaser speci es otherwise.

De ned on following page,  anges are available in many different surface textures that can

affect gasket performance.

1 2

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4 3

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1. Stock Finish: This is a continuous spiral groove. Suitable for practically all ordinary

service conditions, this is the most widely used of any gasket surface nish. The AARH/ RMS microinch nish for this typically ranges from a 125 to 250 value. This nish is suitable

for gaskets that have a soft conformable face. Under compression, the soft face will embed

into this nish which helps create a seal. A high level of friction is generated between the mating surfaces due to this aspect. The stock nish for 12” (305 mm) and smaller anges

is generated by a 1/16” (1.59 mm) radius round nosed tool at a feed of 1/32” (0.79 mm) per revolution. For sizes above 12” (305 mm) the tool nose is 1/8” (3.17 mm) radius and the feed is 3/64” (1.19 mm) per revolution.

2. Spiral Serrated: This, too, is a continuous spiral groove but it differs from the stock

nish in that the groove is generated using a 90 degree tool which creates a “V” geometry

with 45 degree angled serration.

3. Concentric Serrated: (Not depicted) As the name suggests this nish is comprised of concentric grooves. A 90 degree tool is used and the serrations are spaced evenly across

the face. This is a non-standard custom nish which must be specied.

4. Smooth Finish: This nish show no denite signs of tool markings apparent to the naked eye. These nishes are typically utilized for gaskets with metal facings such as double jacketed at steel. The smooth surfaces mate to create a seal and depend on the atness of the opposing faces to effect a seal. AARH/RMS Microinch nish values are typically

better than a 64 value.

5. Lapped Finish (Cold Water Finish): Produced by using a wide tool at high speeds, this

nish is equivalent to a ground surface. It is mirror like in appearance. Surfaces such as this

are typically intended to be used without a gasket.

The concepts of surface roughness, waviness, and lay are illustrated schematically below.

RMS microinch value is dened as the root mean square (square root of the mean square) of an innite series of distances measured in miroinches from the hypothetical nominal or

mean surface line to the actual irregular surface contour. For all practical purposes, the RMS microinch value is a weighted average unit of surface roughness that is affected to a greater extent by the highest and lowest deviation from the nominal surface that is by the minor deviation. AARH is calculated by obtaining the average roughness height of the irregular surface .

Flow

(unspecied)

Nominal surface

Normal secon

Total prole

(includes error in

geometric form)

Lay

Waviness prole

(roughness, heights aenuated)

Roughness prole

(waviness heights aenuated)

Mean Roughness

1 n

)

∀

 ∈ ℝ

i = 1

(

∑

∀  ∈ ℝ

i = 1

( )

Arithme cal mean devia on (Ra)Root-mean-square devia on (Rq)

y = y (x)

∑

Ra = ,

Rq =

mean of the distribu on (average)

∑

y (xi) - y

(y (xi) - y)

0 X

Calculations for statistical parameters of pro lometry data.

One microinch equals one millionth of an inch (0.000001”).

Mean line

Material Considerations

A most important factor in selecting the proper gasket is selecting the suitable material that will be compatible with the application service.

The optimum gasket material would have the following characteristics:

• It would have the chemical resistance of PTFE;

• The heat resistance of Flexible Graphite;

• The strength of steel;

• It requires a zero seating stress, such as with soft rubber; and,

• Be cost effective.

Obviously there is no known gasket material that has all these characteristics, and each material has certain limitations that restrict its use. It is possible to overcome limitations

partially by several methods such as:

• Including the use of reinforcing inserts;

• Utilizing combination of materials;

• Varying the construction and/or density; and,

• Designing the joint itself to overcome some of the limitations.

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Evidently, mechanical factors are important in the design of the joint but the primary selection

of a gasket material is in uenced by different factors:

1. The temperature of the  uid or gas in the service

Gaskets are affected in two ways by temperature. Gross physical characteristics are determined by temperature, including material state, oxidation point, and resilience. Also the mechanical (creep or stress relaxation) and chemical properties are highly temperature dependent.

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2. The pressure of the uid or gas in the service.

Internal pressure acts in two ways against a gasket. First, the hydrostatic end force, equal

to the pressure multiplied by the area of pressure boundary, tends to separate the anges. This force must be opposed by the ange clamp force. The difference between the initial ange clamp force and the hydrostatic end force is residual ange load. The residual load must be positive to prevent joint leakage. The magnitude of the residual ange load

required to prevent leakage is dependent upon the style of gasket selected and its material of construction. Second, the internal pressure acts to blow out the gasket across the

gasket ange interface.

3. The corrosive characteristics of the uid or gas to be contained

The gasket must be resistant to deterioration from corrosive attack. The severity of attack and resulting corrosion is dependent upon temperature and time.

Blow-Out

Pressure

Bolt Load

Hydrostac

End Force

Internal pressures

are exerted against both

the ange and the gasket

Gasket

4. Flange Compatibility

The gasket is intended to be the renewable component in the joint system therefore it should be softer or more deformable than the mating surfaces. It must also be chemically compatible. For metallic gaskets, this means consideration must be given to galvanic

corrosion. Galvanic effects can be minimized by selecting metals for the gasket and ange which are close together in the galvanic series, or the gasket should be sacricial (anodic) to prevent damage to the anges.

Summary

There are charts that are included in the appendix that shows the maximum temperature limits for non-metal and metal materials. The ratings are based upon hot air constant

temperatures. The presence of contaminating uids and cyclic conditions may drastically

affect the temperature range. Also, there are charts that indicate general recommendations for non-metallic and metallic materials against various corrosive media. These charts are

general references, as there are many additional factors that can inuence the corrosion resistance of a particular material at operating conditions. Some of these factors include:

• Concentration of the corrosive agent (full strength solutions are not necessarily more

corrosive than those of dilute proportions and the opposite is also true);

• The purity of a corrosive agent. For example, dissolved oxygen in otherwise pure water

may cause rapid oxidation of steam generation equipment at high temperatures; and,

• The temperature of the corrosive agent. In general, higher temperatures of corrosive agents will accelerate corrosive attack.

As a consequence, it is often necessary to “eld-test” materials for resistance to corrosion

under normal operating conditions to determine if the material selected will have the required resistance to corrosion.

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Chapter 1

Gasket Selection

Section One: Non- Metallic Gaskets

A “Soft Gasket” material is a term used when referring to a gasket material that is easily compressed under a low bolt load. This term has been used to distinguish the difference from a metallic gasket. A soft gasket material can be selected from a large variety of elastomers,

compressed non-asbestos, PTFE, exible graphite and high temperature sheet products. Soft gaskets are used in a wide range of applications such as for pipe anges, heat exchangers,

compressors and bonnet valves, to name just a few. Soft gasket material can be purchased in a variety of cut shapes or be provided in sheet or rolls.

As part of Lamons strategy to offer customers a wider range of products, we are pleased to

supply the following soft gasket materials:

• Elastomeric and Fiber Sheet

• Compressed Non-Asbestos Sheet

• Matrix Biaxially Orientated PTFE Sheet

• Matrix L120 Expanded PTFE Sheet

• Matrix L120 PTFE Joint Sealant

• PTFE Envelope Gaskets

• Virgin / Glass-Filled / Reprocessed PTFE Sheet

• Flexible Graphite Sheet

• Mica Sheet

• Ceramic Fiber

Elastomers

An Elastomer is a polymer with the physical property of elasticity. Elastomer is a term derived from elastic polymer, which is often used interchangeably with the term rubber. Each of the monomers which link to form the polymer is usually made of carbon, hydrogen, oxygen and/ or silicon. Elastomers are usually thermosets requiring a curing process involving heat and the addition of sulfur or other equivalent curatives. In addition, elastomers might also be thermoplastic.

SBR (Styrene-Butadiene)

SBR is a synthetic rubber that has excellent abrasion resistance and has good resistance to weak organic acids, alcohols, moderate chemicals and ketones. It is not good in ozone, strong acids, fats, oils, greases and most hydrocarbons. Its temperature range would be from approximately -65°F to 250°F (-54°C to 121°C).

CR-Chloroprene (Neoprene)

Chloroprene is a synthetic rubber that is suitable for use against moderate acids, alkalies and salt solutions. It has good resistance to commercial oils and fuels. It is very poor against strong oxidizing acids, aromatic and chlorinated hydrocarbons. Its temperature range would be from approximately -60°F to 250°F (-51°C to 121°C).

Buna-N/Rubber (Nitrile, NBR)

Buna-N is a synthetic rubber that has good resistance to oils and solvents, aromatic and aliphatic hydrocarbons, petroleum oils and gasoline over a wide range of temperature. It also has good resistance to caustics and salts but only fair acid resistance. It is poor in strong oxidizing agents, chlorinated hydrocarbons, ketones and esters. It is suitable over a temperature range of approximately -60°F to 250°F (-51°C to 121°C).

EPDM (Ethylene Propylene)

This synthetic material has good resistance to strong acids, alkalies, salts and chlorine solutions. It is not suitable for use in oils, solvents or aromatic hydrocarbons. Its temperature range would be between -70°F to 350°F (-57°C to 177°C).

Fluorocarbon (Viton®)

Fluorocarbon elastomer has good resistance to oils, fuel, chlorinated solvents, aliphatic and aromatic hydrocarbons and strong acids. It is not suitable for use against amines, esters, ketones or steam. Its normal temperature range would be between -15°F to 450°F (-26°C to 232°C).

Chlorosulfonated Polyethylene (Hypalon®)

Hypalon® has good acid, alkali and salt resistance. It resists weathering, sunlight, ozone, oils and commercial fuels such as diesel and kerosene. It is not good in aromatics or chlorinated hydrocarbons and has poor resistance against chromic acid and nitric acid. It’s normal temperature range would be between -50°F and 275°F (-46°C and 135°C).

Natural Rubber

Natural rubber has good resistance to mild acids and alkalis, salts and chlorine solutions. It has poor resistance to oils and solvents and is not recommended for use with ozone. Its temperature range is very limited and is suitable only for use from -70°F to 200°F (-57°C to 93°C).

Silicones

Silicone rubbers have good resistance to hot air. They are unaffected by sunlight and ozone. They are not, however, suitable for use against steam, aliphatic and aromatic hydrocarbons. The temperature range would be between -65°F to 500°F (-54°C to 260°C).

Vegetable Fiber Sheet

Vegetable  ber sheet is a tough pliable gasket material manufactured by paper making techniques utilizing plant  bers and a glue-glycerine impregnation. It is widely used for sealing

petroleum products, gases and a wide variety of solvents. Its maximum temperature limit is

250°F (121°C). If a more compressible material is required, a combination cork- ber sheet is available. The cork- ber sheet has the same maximum temperature limitation as the vegetable  ber sheet.

Note:

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Viton® and Hypalon® are registered trademarks of DuPont.

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PTFE Products

PTFE (Polytetrauoroethylene) has emerged as the most common thermoplastic gasket

material. PTFE’s outstanding properties include resistance to temperature extremes from cryogenic to 500°F (260°C). PTFE is highly resistant to chemicals, solvents, caustics and acids

except free uorine and alkali metals. It has a very low surface energy and does not adhere to the anges. PTFE gaskets can be supplied in a variety of forms; either as virgin or reprocessed material, and also with a variety of ller material. The principal advantage in adding llers to PTFE is to inhibit cold ow or creep relaxation.

Matrix is a premium range of PTFE material that covers the full spectrum of customer

requirements. This product line covers, biaxally orientated lled materials (L100, L104, L110)

for low creep, higher loaded applications. High compression (L120) for applications where high load values are not achievable but low creep is still required.

Matrix L100, L104 and L110 products are manufactured to the HS10 method which was developed by DuPont in 1960. The result is a material that has exceptional strength and stability under load. The resultant biaxial orientation of the PTFE particles creates a unique strength where both the longitudinal and transverse directions are equally as strong. This

superior matrix orientation and addition of premium llers allows the material to resist creep and cold ow when subject to load.

Matrix L120 is our range of high quality Expanded PTFE materials, it is offered in both sheet, cut gaskets and joint sealant form.

Expanded PTFE (ePTFE) is manufactured by heating solid Polytetrauoroethylene, the material

is then stretched up to 800% of its original size and this forms a microporous structure which consists of around 70% air. This gives the material good compression characteristics, which allows the ePTFE to seal under low loads.

The Matrix range can be used in its pure form or can be used as facings or llers for our

range of semi-metallic gaskets.

All of our Matrix materials conform to FDA requirements.

Matri

A biaxially orientated high quality silica- lled PTFE

sheet for use in sealing most chemicals except

molten alkali metals,  uorine gas, and hydrogen  uoride. This material is approved for potable

water service, complies with requirements of FDA regulations and can be used at all concentrations of sulfuric acid.

A superior performance, biaxially orientated sheet material containing PTFE and hollow glass microspheres for use in sealing most chemicals

except molten alkali metals,  uorine gas and hydrogen  uoride. This material is approved for

potable water service, complies with requirements of FDA regulations and has exceptional compression characteristics making it good for use in glass lined

 anges or where loading problems exist.

A pigment-free biaxially orientated with superior

performance, barium sulfate- lled PTFE sheet for

use in sealing food, pharmaceuticals, and other general chemical media. This material complies with requirements of FDA regulations and is acceptable

for use in aqueous hydro uoric acid below 49%, but

is not suitable for sealing molten alkali metals or

 uorine gas.

Typical Physical Properties

Style

Color Tan Blue O White

Density

Temperature Limits

MAX Pressure 1235 psi (8.5 MPa) 1235 psi (8.5 MPa) 1235 psi (8.5 MPa)

F36 Compression 7% 35% 6%

F36 Recovery 45% 45% 40%

F152 Tensile Strength 2320 psi (16 MPa) 1885 psi (13 MPa) 2030 psi (14 MPa)

F37 Liquid Leakage <0.3 mL/hr <0.25 mL/hr <0.2 mL/hr

F38 Creep Relaxa on 35% 31% 13%

F149 Dielectric Strength 20 kV/mm 15 kV/mm 21 kV/mm

Residual Stress BS7531 @ 175ºC 4496 psi (31 MPa) 4351 psi (30 MPa) 4351 psi (30 MPa)

Gas Leakage - DIN 3535 <0.01 mg/(s-m) <0.02 mg/(s-m) <0.01 mg/(s-m)

Gas Leakage - BS7531 <0.005 mL/min <0.01 mL/min <0.004 mL/min

ROTT Constant Gb 172 100 146

ROTT Constant a 0.401 0.401 0.375

ROTT Constant Gs 2.76 x 10

Tpmax 24260 33240 60460

m 4 2 2

y 2175 psi (15 MPa) 1595 psi (11 MPa) 1740 psi (12 MPa)

Matrix

L1 0 0

137 lbs/

(2.2 g/cc)

-450ºF (-268ºC) to 500ºF (260ºC)

-6

Matrix

L1 0 4

87 lbs/ 3 (1.4 g/cc)

-450ºF (-268ºC) to 500ºF (260ºC)

2.87 x 10

-5

Matrix

L11 0

180 lbs/

(2.9 g/cc)

-450ºF (-268ºC) to 500ºF (260ºC)

1.2

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Expanded PTFE Sheet

Matrix L120 effectively lls ange imperfections for a tight, leak-free seal.

Matri

conventional PTFE, which is prone to creep and cold ow, L120 has good

creep resistance and bolt torque retention properties even under higher compressive force. With L120, it is much more possible to bolt up once and not have to re-torque later. Most commonly FDA/USDA suitable.

Complies with the requirements of FDA21 CFR 177.1550

Minimum Temperature: -450°F (-268°C) Maximum Temperature: 500°F (260°C) Maximum Pressure: 735 psi (5.1 MPa) Thickness Range: 0.020” (0.5 mm) to 1/4” (6.4 mm)

It is easily compressed under lower

loads, benecial for applications such as FRP or glass-lined anges. Unlike

Typical Physical Properties

Property ASTM Method Typical Values

Compressibility F36 55%

Recovery F36 15%

Tensile Strength F152 3190 psi (22MPa)

Liquid Leakage F37 <0.1 mL/hr

Creep Relaxaon F38 17%

Density - 59 lbs/3 (0.95 g/cc)

Gas Leakage BS7531 <0.03 mL/min

PTFE Joint Sealant

100% pure, specially processed PTFE sealant provides soft, highly

Matri

pressure, PTFE sealant provides a very thin and wide ribbon-like joint sealant so that the smallest possible gasket surface area is exposed to the harmful effects of corrosive media.

Width (in) Length () Width (in) Length ()

1/8 100 3/4 15

1/4 50 3/4 30

3/8 25 3/4 50

3/8 250 3/4 100

1/2 15 1 15

1/2 30 1 30

1/2 150 1 75

5/8 15

5/8 30

5/8 150

compressible gasketing on a roll for long-life, trouble-free sealing that cuts maintenance and storing costs. Under

PTFE Envelope Gaskets

Envelope gaskets utilizing PTFE jackets have become popular for use in severely corrosive services because of their low minimum seating stresses, excellent creep resistance, high

deformability and choice of a variety of  ller materials to assure optimum performance on any speci c application. Fillers such as corrugated metal and rubber sheets are available.

There are three basic designs of envelopes:

1. Slit Type / V Type / Style 800: sliced from cylinders and split from the outside diameter to within approximately 1/16” (1.5 mm) of the inside diameter. The bearing surface

is determined by the  ller dimensions. Clearance is required between the ID of the  ller

and the envelope ID. The gasket OD normally rests within the bolt hole circle and the ID is approximately equal to the nominal ID of pipe. Available in sizes to a maximum OD of

24.

2. Milled Type / Square Cut / Style 820: machined from cylinder stock. The jacket is machined from the OD to within approximately 1/32” (0.8 mm) it’s ID. The jacket’s

ID  ts  ush with pipe bore and its OD nests within the bolts. Available in sizes up to a

maximum OD of 24” (609 mm). Milled envelopes are more expensive than slit type since considerably more material is lost in machining.

3. Formed Tape Type: large diameter (over 12 NPS) and

irregularly shaped envelopes are formed from tape and heat sealed to produce a continuous jacket construction.

Virgin / Glass-Filled / Reprocessed PTFE Sheet

Typical Physical Properties

Property Units

Speci c Gravity g/cc D-792 2.14 - 2.20 2.15 - 2.24 2.13 - 2.20

Hardness Shore D D-2240 52 - 65 55 - 58 52 - 65

Tensile Strength psi (MPa)

Elonga on %

Deforma on Under

Load

(73ºF, 2000 psi, 24 hrs.)

Coeﬃ cient of Linear

Thermal Expansion

(78

ºF - 400ºF)

Thermal

Conduc vity

Dielectric Strength volts/mil D-149a 300 min N/A 500 - 1000

Temperature Range

% D-621 15 - 16 3 - 9 N/A

in/in/ºF D-696 4 - 9 x 10

BTU/hr/

/F-in



ºF (°C)

ASTM

Method

D-638

D-1708

D638

D-1708

C-177 1.7 2.5 - 3.5

Typical Values

(Virgin)

2800 min

(19.3 MPa)

270 min 50 - 150 75 - 200

Cryogenic to 450°F

(232°C)

Typical Values

1000 - 2000

-5

Cryogenic to 450°F

(G-F)

(7-14 MPa)

3 - 8 x 10

(232°C)

(10 MPa - 17 MPa)

-5

Cryogenic to 450°F

Typical Values

(Repro)

1500 - 2400

N/A

(232°C)

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Compressed Non-Asbestos

Early efforts to replace asbestos resulted in the introduction and testing of compressed non-asbestos products in the 1970’s. Many of these products have seen extensive use since that period, however there have been enough problems to warrant careful consideration in choosing a replacement material for compressed asbestos. Most manufacturers of non-asbestos sheet

materials use synthetic bers, like aramid or Kevlar®, in conjunction with

an elastomeric binder. The elastomeric binder makes up a larger percentage of this sheet and thereby becomes a more important consideration when determining applications.

Note:

Kevlar® is a registered trademark of DuPont.

L420

L420 is a general purpose sheet jointing material with good mechanical properties.

Constructed with aramid/ organic ber and a high quality nitrile rubber binder.

Creep Relaxation ASTM F-38B (1/32”) 30%

Residual Stress DIN 52913 (50 MPa @ 175°C) 25 MPa

Sealability ASTM F-37A (1/32”) 0.25 ml/hr

Gas Leakage DIN 3535/6 < 1.0 ml/min

Compressibility ASTM F-36 J 7 - 15%

Recovery ASTM F-36 J 50% min

Tensile Strength ASTM F-152 1500 psi (10 MPa)

Weight Increase

Thickness Increase

Standard Line Callout ASTM F-104 F712111E12M4

Leachable Chlorides FSA Method (Typical) 200 ppm

Density 112 lbs/ft³ (1.8 g/cc)

Color Green

Pressure Range Vacuum to 580 psi (40 Bar) @ 1/16” thickness and below

Thickness Range 1/64” (0.4 mm) to 1/8” (3.2 mm)

Sheet Size Availability Max: 120” x 60” (3 m x 1.5 m)

Temperature Limits

ASTM F-146 after immersion in

Fuel B for 5 Hrs @ 73°F (23°C)

ASTM F-146

ASTM Oil 1, 5 hrs / 300°F (149°C) ASTM Oil 3, 5 hrs / 300°F (149°C)

ASTM Fuel A, 5 Hrs / 73°F (23°C) ASTM Fuel B, 5 Hrs / 73°F (23°C)

-40°F to 356°F (-40°C to 180°C)

25% max

0 - 5%

0 - 7%

Applications and Characteristics:

• Used successfully in mild organic and inorganic acids

• Diluted alkalis

• General chemicals

• Synthetic oils

• Petroleum and petroleum derivatives

Note:

Please refer to Lamons Chemical Compatibility Chart (in the Appendix of this manual) for more information. All Lamons sheet gasket materials are supplied with anti-stick coating as standard. Can be

manufactured with wire insert.

L430

L430 is a general purpose sheet jointing material with superior mechanical properties.

Constructed with premium aramid  ber and a high quality nitrile rubber binder.

Applications and Characteristics:

• Used successfully in mild organic and inorganic acids

• Diluted alkalis

• General chemicals

• Synthetic oils

• Petroleum and petroleum derivatives

Note:

Please refer to Lamons Chemical Compatibility Chart (in the Appendix of this manual) for more information. All Lamons sheet gasket materials are supplied with anti-stick coating as standard. Can be manufactured with wire insert.

Creep Relaxation ASTM F-38B (1/32”) 25%

Residual Stress

DIN 52913 (50 MPa @ 175°C) 25 MPa

BS7531 (40 MPa @ 300°C) 16 MPa

Sealability ASTM F-37A (1/32”) 0.25 ml/hr

Gas Leakage DIN 3535/6 < 1.0 ml/min

Compressibility ASTM F-36 J 7 - 17%

Recovery ASTM F-36 J 50% min

Tensile Strength ASTM F-152 1500 psi (10 MPa)

Weight Increase

ASTM F-146 after immersion in

Fuel B for 5 Hrs @ 73°F (23°C)

15% max

ASTM F-146

ASTM Oil 1, 5 hrs / 300°F (149°C) 0 - 5%

Thickness Increase

ASTM Oil 3, 5 hrs / 300°F (149°C) 0 - 5%

ASTM Fuel A, 5 Hrs / 73°F (23°C) 0 - 5%

ASTM Fuel B, 5 Hrs / 73°F (23°C) 0 - 7%

Standard Line Callout ASTM F-104 F712111E12M4

m & y values 1/16” thickness 1/8” thickness

m 2.5 3.2

y 3800 4100

Dielectric Strength ASTM D149-95a 14 kV/mm

Leachable Chlorides FSA Method (Typical) 200 ppm

Density 112 lbs/ft³ (1.8 g/cc)

Color Green

Thickness Range 1/64” (0.4 mm) to 1/8” (3.2 mm)

Sheet Size Availability Max: 120” x 60” (3 m x 1.5 m)

Temperature Limits

°F to 428°F (-40°C to 220°C)

-40

Maximum Pressure 50 Bar (725 PSI)

All Pressure / Temperature values are based on 1/16” (1.5 mm) gasket thickness.

1. Suitable (Chemical Compatibility has to be considered).

2. Please contact Lamons Engineering department

for clari cation.engineering@lamons.com

3. Not Suitable.

Sealing Global - Servicing Local

L430 PRESSURE / TEMPERATURE GRAPH

(1160)

(1015)

(870)

(725)

(580)

Pressure: Bar (PSI)

(435)

(290)

(145)

(0)

0 50 100 150 200 250 300 350 400 450

(0) (122) (212) (302 ) (392) (482) (572) (662) (752) (842)

Temperature: Deg C (

Deg F)

Sealing Global - Servicing Local

L433

L433 is a premium sheet gasket material with a reinforcement structure consisting of glass

and aramid  bers, it is bound together with a high quality nitrile rubber binder. L433 has excellent resistance to steam due to the addition of glass  ber.

Creep Relaxation ASTM F-38B (1/32”) 20%

Residual Stress

DIN 52913 (50 MPa @ 175°C) 32 MPa

BS7531 (40 MPa @ 300°C) 27 MPa

Sealability ASTM F-37A (1/32”) 0.25 ml/hr

Gas Leakage DIN 3535/6 < 1.0 ml/min

Compressibility ASTM F-36 J 7 - 17%

Recovery ASTM F-36 J 50% min

Tensile Strength ASTM F-152 1500 psi (10 MPa)

Weight Increase

ASTM F-146 after immersion in

Fuel B for 5 Hrs @ 73°F (23°C)

15% max

ASTM F-146

ASTM Oil 1, 5 hrs / 300°F (149°C) 0 - 5%

Thickness Increase

ASTM Oil 3, 5 hrs / 300°F (149°C) 0 - 5%

ASTM Fuel A, 5 Hrs / 73°F (23°C) 0 - 5%

ASTM Fuel B, 5 Hrs / 73°F (23°C) 0 - 7%

Standard Line Callout ASTM F-104 F712132B3E21M5

m & y values 1/16” thickness 1/8” thickness

m 2.5 3.2

y 3800 4100

Dielectric Strength ASTM D149-95a 18 kV/mm

Leachable Chlorides FSA Method (Typical) 200 ppm

Density 100 lbs/ft³ (1.6 g/cc)

Color Red/Brown

Thickness Range 1/64” (0.4 mm) to 1/8” (3.2 mm)

Sheet Size Availability Max: 120” x 60” (3 m x 1.5 m)

Approvals

Temperature Limits

Meets “BS7531 Grade AX”

API 607 Fire Safe

°F to 800°F (-100°C to 425°C)

-150

Maximum Pressure 80 Bar (1160 PSI)

Applications and Characteristics:

• Excellent sealing ability, high resistance to creep

• Good steam resistance

• Stronger acids and alkalis, inert gases, general chemicals, oils and fuels

• Petroleum and petroleum derivatives

Note:

(1160)

(1015)

(870)

(725)

(580)

Pressure: Bar (PSI)

(435)

(290)

(145)

(0)

L433 PRESSURE / TEMPERATURE GRAPH

0 50 100 150 200 250 300 350 400 450

(0) (122) (212) (302 ) (392) (482) (572) (662) (752)

Temperature: Deg C ( Deg F)

(842)

All Pressure / Temperature values are based on 1/16” (1.5 mm) gasket thickness.

1. Suitable (Chemical Compatibility has to be considered).

2. Please contact Lamons Engineering

department for clari cation.

engineering@lamons.com

3. Not Suitable.

L440

L440 is a good quality sheet gasket material with a wide range of application potential. Manu-

factured with a formulation of high quality  llers, premium aramid  bers and a nitrile rubber

binder, L440 is a cost effective, high performance gasket material.

Applications and Characteristics:

• Excellent sealing ability, good resistance to creep

• Good chemical resistance

• Inert gases, general chemicals, oils and fuels

• Great Recovery

Note:

Please refer to Lamons Chemical Compatibility Chart (in the Appendix of this manual) for more information. All Lamons sheet gasket materials are supplied with anti-stick coating as standard. Can be

manufactured with wire insert.

Creep Relaxation ASTM F-38B (1/32”) 20%

Residual Stress

DIN 52913 (50 MPa @ 175°C) 30 MPa

BS7531 (40 MPa @ 300°C) 24 MPa

Sealability ASTM F-37A (1/32”) 0.2 ml/hr

Gas Leakage DIN 3535/6 < 1.0 ml/min

Compressibility ASTM F-36 J 7 - 17%

Recovery ASTM F-36 J 50% min

Tensile Strength ASTM F-152 1600 psi (11 MPa)

Weight Increase

ASTM F-146 after immersion in

Fuel B for 5 Hrs @ 73°F (23°C)

25% max

ASTM F-146

ASTM Oil 1, 5 hrs / 300°F (149°C) 0 - 5%

Thickness Increase

ASTM Oil 3, 5 hrs / 300°F (149°C) 0 - 5%

ASTM Fuel A, 5 Hrs / 73°F (23°C) 0 - 5%

ASTM Fuel B, 5 Hrs / 73°F (23°C) 0 - 7%

Standard Line Callout ASTM F-104 F712121B3E22M5

m & y values 1/16” thickness 1/8” thickness

m 2.5 3.2

y 3800 4100

Dielectric Strength ASTM D149-95a 17 kV/mm

Leachable Chlorides FSA Method (Typical) 100 ppm

Density 112 lbs/ft³ (1.8 g/cc)

Color Green

Thickness Range 1/64” (0.4 mm) to 1/8” (3.2 mm)

Sheet Size Availability Max: 120” x 60” (3 m x 1.5 m)

Approvals Meets “BS7531 Grade AY”

Temperature Limits

°F to 752°F (-73°C to 400°C)

-100

Maximum Pressure 65 Bar (943 PSI)

All Pressure / Temperature values are based on 1/16” (1.5 mm) gasket thickness.

1. Suitable (Chemical Compa bility has to be considered).

2. Please contact Lamons Engineering department for clari ca on. engineering@lamons.com

3. Not Suitable.

Sealing Global - Servicing Local

L440 PRESSURE / TEMPERATURE GRAPH

(1160)

(1015)

(870)

(725)

(580)

Pressure: Bar (PSI)

(435)

(290)

(145)

(0)

0 50 100 150 200 250 300 35 0 400 450

(0) (122) (212) (302 ) (392) (482) (572)

Temperature: Deg C ( Deg F)

(662) (752) (842)

Sealing Global - Servicing Local

L441

L441 PRESSURE / TEMPERATURE GRAPH

Temperature: Deg C ( Deg F)

A general service sheet gasket material with a wide range of application potential. Manufactured

with a formulation of high quality llers, premium aramid bers and nitrile binder, L441 is the

workhorse of the Lamons gasket line

Creep Relaxaon ASTM F-38B (1/32”) 20%

Residual Stress

DIN 52913 (50 MPa @ 175°C) 28 MPa

BS7531 (40 MPa @ 300°C) 20 MPa

Sealability ASTM F-37A (1/32”) 0.25 ml/hr

Gas Leakage DIN 3535/6 < 1.0 ml/min

Compressibility ASTM F-36 J 7 - 17%

Recovery ASTM F-36 J 50% min

Tensile Strength ASTM F-152 1500 psi (10 MPa)

Weight Increase

ASTM F-146 aer immersion in

Fuel B for 5 Hrs @ 73°F (23°C)

25% max

ASTM F-146

ASTM Oil 1, 5 hrs / 300°F (149°C) 0 - 5%

Thickness Increase

ASTM Oil 3, 5 hrs / 300°F (149°C) 0 - 5%

ASTM Fuel A, 5 Hrs / 73°F (23°C) 0 - 5%

ASTM Fuel B, 5 Hrs / 73°F (23°C) 0 - 7%

Standard Line Callout ASTM F-104 F712121B3E22M5

m & y values 1/16” thickness 1/8” thickness

m 2.5 3.2

y 3800 4100

Dielectric Strength ASTM D149-95a 15 kV/mm

Leachable Chlorides FSA Method (Typical) 100 ppm

Density 112 lbs/³ (1.8 g/cc)

Color Blue

Thickness Range 1/64” (0.4 mm) to 1/8” (3.2 mm)

Sheet Size Availability Max: 120” x 60” (3 m x 1.5 m)

Temperature Limits

-100°F to 707°F (-73°C to 375°C)

Maximum Pressure 60 Bar (870 PSI)

Applications and Characteristics:

• Excellent sealing ability

• Good chemical resistance

• Creep relaxation minimization

• Great Recovery

Note:

(1160)

(1015)

(870)

(725)

(580)

Pressure: Bar (PSI)

(435)

(290)

(145)

(0)

0 50 100 150 200 250 300 350 400 450

(0) (122) (212) (302 ) (392) (482) (572) (662) (752) (842)

All Pressure / Temperature values are based on 1/16” (1.5 mm) gasket thickness.

1. Suitable (Chemical Compability has to be considered).

2. Please contact Lamons Engineering department for claricaon. engineering@lamons.com

3. Not Suitable.

L443

L443 is a premium sheet gasket material with a reinforcement structure consisting of glass

and aramid  bers, it is bound together with a high quality nitrile rubber binder. L443 has excellent resistance to steam due to the addition of glass  ber.

Applications and Characteristics:

• Excellent sealing ability, high resistance to creep

• Good steam resistance

• Stronger acids and alkalis, inert gases, general chemicals, oils and fuels

• Petroleum and petroleum deriva v e s

Note:

Creep Relaxation ASTM F-38B (1/32”) 20%

Residual Stress

DIN 52913 (50 MPa @ 175°C) 32 MPa

BS7531 (40 MPa @ 300°C) 27 MPa

Sealability ASTM F-37A (1/32”) 0.25 ml/hr

Gas Leakage DIN 3535/6 < 1.0 ml/min

Compressibility ASTM F-36 J 7 - 17%

Recovery ASTM F-36 J 50% min

Tensile Strength ASTM F-152 1500 psi (10 MPa)

Weight Increase

ASTM F-146 after immersion in

Fuel B for 5 Hrs @ 73°F (23°C)

15% max

ASTM F-146

ASTM Oil 1, 5 hrs / 300°F (149°C) 0 - 5%

Thickness Increase

ASTM Oil 3, 5 hrs / 300°F (149°C) 0 - 5%

ASTM Fuel A, 5 Hrs / 73°F (23°C) 0 - 5%

ASTM Fuel B, 5 Hrs / 73°F (23°C) 0 - 7%

Standard Line Callout ASTM F-104 F712132B3E21M5

m & y values 1/16” thickness 1/8” thickness

m 2.5 3.2

y 3800 4100

Dielectric Strength ASTM D149-95a 18 kV/mm

Leachable Chlorides FSA Method (Typical) 200 ppm

Density 100 lbs/ft³ (1.6 g/cc)

Color White/Green

Thickness Range 1/64” (0.4 mm) to 1/8” (3.2 mm)

Sheet Size Availability Max: 120” x 60” (3 m x 1.5 m)

Approvals

Temperature Limits

Meets “BS7531 Grade AX”

API 607 Fire Safe, ABS, GL

°F to 800°F (-100°C to 425°C)

-150

Maximum Pressure 80 Bar (1160 PSI)

All Pressure / Temperature values are based on 1/16” (1.5 mm) gasket thickness.

1. Suitable (Chemical Compatibility has to be considered).

2. Please contact Lamons Engineering

department for clari cation.

engineering@lamons.com

3. Not Suitable.

Sealing Global - Servicing Local

L443 PRESSURE / TEMPERATURE GRAPH

(1160)

(1015)

(870)

(725)

(580)

Pressure: Bar (PSI)

(435)

(290)

(145)

(0)

0 50 100 150 200 250 300 350 400 450

(0) (122) (212) (302 ) (392) (482) (572) (662) (752) (842)

Temperature: Deg C ( Deg F)

Sealing Global - Servicing Local

L450

L450 is a premium sheet gasket material utilizing carbon and aramid bers, it is bound together

with a high quality nitrile rubber binder. L450 is designed to perform at high temperatures and pressures. Standardization and consolidation of many other gasket materials can be achieved by the use of L450.

Creep Relaxation ASTM F-38B (1/32”) 18%

Residual Stress

DIN 52913 (50 MPa @ 175°C) 31 MPa

BS7531 (40 MPa @ 300°C) 26 MPa

Sealability ASTM F-37A (1/32”) 0.3 ml/hr

Gas Leakage DIN 3535/6 < 1.0 ml/min

Compressibility ASTM F-36 J 7 - 17%

Recovery ASTM F-36 J 50% min

Tensile Strength ASTM F-152 1500 psi (10 MPa)

Weight Increase

ASTM F-146 after immersion in

Fuel B for 5 Hrs @ 73°F (23°C)

15% max

ASTM F-146

ASTM Oil 1, 5 hrs / 300°F (149°C) 0 - 5%

Thickness Increase

ASTM Oil 3, 5 hrs / 300°F (149°C) 0 - 5%

ASTM Fuel A, 5 Hrs / 73°F (23°C) 0 - 5%

ASTM Fuel B, 5 Hrs / 73°F (23°C) 0 - 7%

Standard Line Callout ASTM F-104 F712122B3E22M5

m & y values 1/16” thickness 1/8” thickness

m 2.5 3.2

y 3800 4100

Dielectric Strength ASTM D149-95a 5 kV/mm

Leachable Chlorides FSA Method (Typical) 200 ppm

Density 100 lbs/ft³ (1.6 g/cc)

Color Black

Thickness Range 1/64” (0.4 mm) to 1/8” (3.2 mm)

Sheet Size Availability Max: 120” x 60” (3 m x 1.5 m)

Approvals

Temperature Limits

Meets “BS7531 Grade AX”

API 607 Fire Safe

-150°F to 842°F (-100°C to 450°C)

Maximum Pressure 80 Bar (1160 PSI)

Applications and Characteristics:

• Excellent sealing ability, high resistance to creep

• Good steam resistance

• Stronger acids and alkalis, inert gases, general chemicals, oils and fuels

Note:

(1160)

(1015)

(870)

(725)

(580)

Pressure: Bar (PSI)

(435)

(290)

(145)

(0)

L450 PRESSURE / TEMPERATURE GRAPH

0 50 100 150 200 250 300 350 400 450

(0) (122) (212) (302 ) (392) (482) (572) (662) (752) (842)

Temperature: Deg C ( Deg F)

All Pressure / Temperature values are based on 1/16” (1.5 mm) gasket thickness.

1. Suitable (Chemical Compatibility has to be considered).

2. Please contact Lamons Engineering department for clarication. engineering@lamons.com

3. Not Suitable.

* Can be used up to a maximum short term

peak temperature of 900°F (482°C)

L460

Temperature: Deg C ( Deg F)

L460 is a premium sheet gasket material utilizing graphite and aramid  bers, it is bound to-

gether with a high quality nitrile rubber binder. L460 is designed to perform at high temperatures and pressures. Standardization and consolidation of many other gasket materials can be achieved by the use of L460.

Applications and Characteristics:

• Excellent sealing ability, high resistance to creep

• Good steam resistance

• Stronger acids and alkalis, inert gases, general chemicals, oils and fuels

• Petroleum and petroleum derivatives

Note:

Creep Relaxation ASTM F-38B (1/32”) 19%

Residual Stress

DIN 52913 (50 MPa @ 175°C) 30 MPa

BS7531 (40 MPa @ 300°C) 25 MPa

Sealability ASTM F-37A (1/32”) 0.3 ml/hr

Gas Leakage DIN 3535/6 < 1.0 ml/min

Compressibility ASTM F-36 J 11%

Recovery ASTM F-36 J 55% min

Tensile Strength ASTM F-152 1500 psi (10 MPa)

Weight Increase

ASTM F-146 after immersion in

Fuel B for 5 Hrs @ 73°F (23°C)

15% max

ASTM F-146

ASTM Oil 1, 5 hrs / 300°F (149°C) 0 - 5%

Thickness Increase

ASTM Oil 3, 5 hrs / 300°F (149°C) 0 - 5%

ASTM Fuel A, 5 Hrs / 73°F (23°C) 0 - 5%

ASTM Fuel B, 5 Hrs / 73°F (23°C) 0 - 7%

Standard Line Callout ASTM F-104 F712122B3E22M5

m & y values 1/16” thickness 1/8” thickness

m 2.5 3.2

y 3800 4100

Dielectric Strength ASTM D149-95a 5 kV/mm

Leachable Chlorides FSA Method (Typical) 200 ppm

Density 100 lbs/ft³ (1.6 g/cc)

Color Black

Thickness Range 1/64” (0.4 mm) to 1/8” (3.2 mm)

Sheet Size Availability Max: 120” x 60” (3 m x 1.5 m)

Approvals Meets “BS7531 Grade AX”

Temperature Limits

°F to 842°F (-100°C to 450°C)

-150

Maximum Pressure 65 Bar (943 PSI)

All Pressure / Temperature values are based on 1/16” (1.5 mm) gasket thickness.

1. Suitable (Chemical Compatibility has to be considered).

2. Please contact Lamons Engineering

department for clari cation.

engineering@lamons.com

3. Not Suitable.

Sealing Global - Servicing Local

L460 PRESSURE / TEMPERATURE GRAPH

(1160)

(1015)

(870)

(725)

(580)

Pressure: Bar (PSI)

(435)

(290)

(145)

(0)

0 50 100 150 200 250 300 350 400 450

(0) (122) (212) (302 ) (392) (482) (572) (662) (752) (842)

Sealing Global - Servicing Local

L540

)

L540 is a compressed sheet gasket material utilizing a high quality Neoprene binder. It is re-

inforced with aramid and inorganic bers. This material has an inherent resistance to oil and

petroleum based solvents

Creep Relaxation ASTM F-38B (1/32”) 25%

Residual Stress

DIN 52913 (50 MPa @ 175°C) 28 MPa

BS7531 (40 MPa @ 300°C) 20 MPa

Sealability ASTM F-37A (1/32”) 0.2 ml/hr

Gas Leakage DIN 3535/6 < 1.0 ml/min

Compressibility ASTM F-36 J 7 - 17%

Recovery ASTM F-36 J 50% min

Tensile Strength ASTM F-152 1600 psi (11 MPa)

Weight Increase

ASTM F-146 after immersion in

Fuel B for 5 Hrs @ 73°F (23°C)

20% max

ASTM F-146

ASTM Oil 1, 5 hrs / 300°F (149°C) 0 - 10%

Thickness Increase

ASTM Oil 3, 5 hrs / 300°F (149°C) 15 - 25%

ASTM Fuel A, 5 Hrs / 73°F (23°C) 0 - 10%

ASTM Fuel B, 5 Hrs / 73°F (23°C) 10 - 20%

Standard Line Callout ASTM F-104 F712332B4E45M5

m & y values 1/16” thickness 1/8” thickness

m 2.5 3.2

y 3800 4100

Dielectric Strength ASTM D149-95a 12 kV/mm

Leachable Chlorides FSA Method (Typical) 500 ppm

Density 106 lbs/ft³ (1.7 g/cc)

Color Dark Gray

Thickness Range 1/64” (0.4 mm) to 1/8” (3.2 mm)

Sheet Size Availability Max: 120” x 60” (3 m x 1.5 m)

Temperature Limits

-60°F to 572°F (-51°C to 300°C)

Maximum Pressure 60 Bar (870 PSI)

Applications and Characteristics:

• It is chemically stable and possesses good mechanical properties

• It is an excellent choice for water and saturated steam

• Refrigerants

• Oils and fuels

Note:

(1160)

(1015)

(870)

(725)

(580)

Pressure: Bar (PSI)

(435)

(290)

(145)

(0)

L540 PRESSURE / TEMPERATURE GRAPH

0 50 100 150 200 250 300 350 400 450

(0) (122) (212) (302 ) (392) (482) (572) (662) (752) (842

Temperature: Deg C ( Deg F)

All Pressure / Temperature values are based on 1/16” (1.5 mm) gasket thickness.

1. Suitable (Chemical Compatibility has to be considered).

2. Please contact Lamons Engineering department for clarication. engineering@lamons.com

3. Not Suitable.

L640W

L640W is a premium compressed sheet gasket material utilizing a high quality SBR binder. It

is reinforced with an engineered blend of aramid and inorganic  bers.

Applications and Characteristics:

• It is chemically stable and possesses good mechanical properties

• It is an excellent choice for water and saturated steam

• Mild acids and alkalis

• Inert gases.

Note:

Please refer to Lamons Chemical Compatibility Chart (in the Appendix of this manual) for more information. All Lamons sheet gasket materials are supplied with anti-stick coating as standard. Can be

manufactured with wire insert.

Creep Relaxation ASTM F-38B (1/32”) 20%

Residual Stress

DIN 52913 (50 MPa @ 175°C) 29 MPa

BS7531 (40 MPa @ 300°C) 23 MPa

Sealability ASTM F-37A (1/32”) 0.2 ml/hr

Gas Leakage DIN 3535/6 < 1.0 ml/min

Compressibility ASTM F-36 J 7 - 17%

Recovery ASTM F-36 J 50% min

Tensile Strength ASTM F-152 1600 psi (11 MPa)

Weight Increase

ASTM F-146 after immersion in

Fuel B for 5 Hrs @ 73°F (23°C)

25% max

ASTM F-146

ASTM Oil 1, 5 hrs / 300°F (149°C) 0 - 15%

Thickness Increase

ASTM Oil 3, 5 hrs / 300°F (149°C) 20 - 35%

ASTM Fuel A, 5 Hrs / 73°F (23°C) 0 - 15%

ASTM Fuel B, 5 Hrs / 73°F (23°C) 15 - 25%

Standard Line Callout ASTM F-104 F712541B3E45M5

m & y values 1/16” thickness 1/8” thickness

m 2.5 3.2

y 3800 4100

Dielectric Strength ASTM D149-95a 16 kV/mm

Leachable Chlorides FSA Method (Typical) 200 ppm

Density 112 lbs/ft³ (1.8 g/cc)

Color Off White

Thickness Range 1/64” (0.4 mm) to 1/8” (3.2 mm)

Sheet Size Availability Max: 120” x 60” (3 m x 1.5 m)

Approvals Meets “BS7531 Grade AY”

Temperature Limits

°F to 662°F (-54°C to 350°C)

-65

Maximum Pressure 60 Bar (870 PSI)

All Pressure / Temperature values are based on 1/16” (1.5 mm) gasket thickness.

1. Suitable (Chemical Compatibility has to be considered).

2. Please contact Lamons Engineering

department for clari cation.

engineering@lamons.com

3. Not Suitable.

Sealing Global - Servicing Local

L640W PRESSURE / TEMPERATURE GRAPH

(1160)

(1015)

(870)

(725)

(580)

Pressure: Bar (PSI)

(435)

(290)

(145)

(0)

0 50 100 150 200 250 300 350 400 450

(0) (122) (212) (302 ) (392) (482) (572) (662) (752) (842)

Temperature: Deg C ( Deg F)

Sealing Global - Servicing Local

L740

L740 is a premium compressed sheet gasket material utilizing a high quality EPDM binder. It

is reinforced with an engineered blend of aramid and inorganic bers.

Creep Relaxation ASTM F-38B (1/32”) 24%

Residual Stress

DIN 52913 (50 MPa @ 175°C) 30 MPa

BS7531 (40 MPa @ 300°C) 22 MPa

Sealability ASTM F-37A (1/32”) 0.2 ml/hr

Gas Leakage DIN 3535/6 < 1.0 ml/min

Compressibility ASTM F-36 J 7 - 15%

Recovery ASTM F-36 J 50% min

Tensile Strength ASTM F-152 1600 psi (11 MPa)

Weight Increase

ASTM F-146 after immersion in

Fuel B for 5 Hrs @ 73°F (23°C)

23% max

ASTM F-146

ASTM Oil 1, 5 hrs / 300°F (149°C) 15 - 35%

Thickness Increase

ASTM Oil 3, 5 hrs / 300°F (149°C) 30 - 50%

ASTM Fuel A, 5 Hrs / 73°F (23°C) 10 - 35%

ASTM Fuel B, 5 Hrs / 73°F (23°C) 15 - 35%

Standard Line Callout ASTM F-104

F712690A-

9B4E99L104M9

m & y values 1/16” thickness 1/8” thickness

m 2.5 3.2

y 3800 4100

Dielectric Strength ASTM D149-95a 16 kV/mm

Leachable Chlorides FSA Method (Typical) 200 ppm

Density 112 lbs/ft³ (1.8 g/cc)

Color Off White/Gray

Thickness Range 1/64” (0.4 mm) to 1/8” (3.2 mm)

Sheet Size Availability Max: 120” x 60” (3 m x 1.5 m)

Temperature Limits

-100°F to 707°F (-73°C to 375°C)

Maximum Pressure 65 Bar (943 PSI)

Applications and Characteristics:

• It is chemically stable and possesses good mechanical properties

• It is an excellent choice for water and saturated steam

• Mild acids and alkalis

• Inert gases

Note:

Please refer to Lamons Chemical Compatibility Chart (in the Appendix of this manual) for more information. All Lamons sheet gasket materials are supplied with anti-stick coating as standard. Can be

manufactured with wire insert.

(1160)

(1015)

(870)

(725)

(580)

Pressure: Bar (PSI)

(435)

(290)

(145)

(0)

L740 PRESSURE / TEMPERATURE GRAPH

0 50 100 150 200 250 300 350 400 450

(0) (122) (212) (302 ) (392) (482) (572) (662) (752) (842)

Temperature: Deg C ( Deg F)

All Pressure / Temperature values are based on 1/16” (1.5 mm) gasket thickness.

1. Suitable (Chemical Compatibility has to be considered).

2. Please contact Lamons Engineering department for clarication. engineering@lamons.com

3. Not Suitable.

Flexible Graphite

This is an all graphite material containing no resins or inorganic  llers. It is available with or

without a metal insertion, and in adhesive-back tape form. Flexible Graphite has outstanding resistance to corrosion against a wide variety of acids, alkalies and salt solutions, organic

compounds, and heat transfer  uids, even at high temperatures. There are two proven metal reinforced  exible graphite laminate materials ideal for 95% of all sheet gasket applications. Lamons  exible graphite laminates (LG-SS and LG-TC) are surface branded for easy identi cation. These gasket materials meet re nery, petrochemical and industrial service

requirements.

Graphite T ape

Rolls of graphite tape can be furnished with a strong self-adhesive backing strip, to facilitate repair of multiple surfaces, enhancement of existing design or installation as a form-in-place gasket.

Temperature Limits

Minimum Maximum

In air -320°F (-200°C) 840°F (450°C)

In Steam -320°F (-200°C) 1200°F (650°C)

In Inert or Reducing Media

-320°F (-200°C) 5400°F (3000°C)

Standard Dimensions

0.005” (0.127 mm), 0.01” (0.254 mm),

Thickness

Width 1/2” (12.7 mm) to 2” (50.8 mm)

Length 20’ (6.1 m), 50’ (15.24 m), 100’ (30.48 m)

Note:

Custom widths and lengths available

0.015” (0.381), 0.02” (0.508 mm),

0.03”(0.762 mm) and 0.04” (1.016 mm)

Sealing Global - Servicing Local

Lamons LG -SS

LG-SS is a  at metal 316/316L stainless steel reinforced  exible graphite sheet material made

with minimum 98% typical carbon content.

Creep Relaxa on

Stability under stress (DIN 52913) 48 N/m

Compressibility

Recovery

ASME code factor “M value”

<4%

30%-40%

15%-20%

ASME code factor “Y value” 900 psi

Number of inserts

Total chlorine (Max) 50 ppm

Density

70 lb/ 3 (1.12 g/cc)

Ash content (Max) 2.0%

Tp max at 15,000 psi gasket stress 3227 psi (22 MPa)

Gb = 816 psi

PVRC design constants*:

a = 0.377 psi

= 0.066 psi

Gas permeability according DIN 3535 (0.60”) <1.0 ml/min

Nominal Thickness 0.030”-0.120” (0.8 mm - 3 mm)

Typical Thicknesses

1/16” (1.5 mm)

1/8” (3 mm)

316/316L Insert Thickness 0.002” (0.05 mm)

Temperature Limits

*The values are taken from BFG-6.1 and ROTT. Test results are subject to interpreta on and can lead to di ering design constants.

Cryogenic to 850°F (454ºC)

140

(2030)

120

(1740)

(1450)

100

(1160)

(870)

Pressure: Bar (PSI)

(580)

(290)

(0)

LG-SS PRESSURE / TEMPERATURE GRAPH

0 50 100 150 200 250 300 350 400 450 500

(0) (120) (210) (300) (390) (480) (570) (660) (750) (850) (930)

Temperature: Deg C ( Deg F)

All Pressure / Temperature values are based on 1/16” (1.5 mm) gasket thickness.

1. Suitable (Chemical Compatibility has to be considered).

2. Please contact Lamons Engineering

department for clari cation.

engineering@lamons.com

3. Not Suitable.

Lamons LG -TC

Temperature: Deg C ( Deg F)

LG-TC is a reinforced  exible graphite sheet material laminated with tanged 316/316L stain-

less steel insert and made with minimum 98% typical carbon content.

Creep Relaxa on

Stability under stress (DIN 52913) 48 N/m

Compressibility

Recovery

ASME code factor “M value”

<4%

30%-40%

15%-20%

ASME code factor “Y value” 2500 psi

Number of inserts

Total chlorine (Max) 50 ppm

Density

70 lb/ 3 (1.12 g/cc)

Ash content (Max) 1.0%

Tp max at 15,000 psi gasket stress 2287 psi

PVRC design constants*:

(16 MPa)

= 1400 psi

a = 0.324 psi

= 0.010 psi

Gas permeability according DIN 3535 (0.60”) <1.0 ml/min

Nominal Thickness 0.030”- 0.120” (0.8 mm - 3 mm)

Typical Thicknesses

1/16” (1.5 mm)

1/8” (3 mm)

316/316L Insert Thickness 0.004”/0.005” (0.1/0.127 mm)

Temperature Limits

*The values are taken from BFG-6.1 and ROTT. Test results are subject to interpreta on and can lead to di ering design constants.

Cryogenic to 850°F (454ºC)

All Pressure / Temperature values are based on 1/16” (1.5 mm) gasket thickness.

1. Suitable (Chemical Compatibility has to be considered).

2. Please contact Lamons Engineering

department for clari cation.

engineering@lamons.com

3. Not Suitable.

Sealing Global - Servicing Local

(2030)

(1740)

(1450)

(1160)

Pressure: Bar (PSI)

140

120

100

(870)

(580)

(290)

(0)

0 50 100 150 200 250 300 350 400 450 500

(0) (120) (210) (300) (390) (480) (570) (660) (750) (850) (930)

LG-TC PRESSURE / TEMPERATURE GRAPH

Sealing Global - Servicing Local

Lamons LG - L

Temperature: Deg C ( Deg F)

Pressure: Bar (PSI)

LG-L homogeneous graphite sheets are manufactured from high carbon content of minimum 98% natural graphite.

Creep Relaxa on

Stability under stress (DIN 52913) 48 N/m

Compressibility

Recovery

ASME code factor “M value”

<4%

30%-40%

15%-20%

ASME code factor “Y value” 2500 psi

Number of inserts

Total chlorine (Max) 50 ppm

62.4 lbs/ 3 (0.99 g/cc) -

Density

70 lbs/

(1.12 g/cc) (ASTM

F-1315)

Ash content (Max) 1.0%

Tp max at 15,000 psi gasket stress 2287 psi

PVRC design constants*:

(16 MPa)

= 1400 psi

a = 0.324 psi

= 0.010 psi

Gas permeability according DIN 3535 (0.60”) <1.0 ml/min

Nominal Thickness 0.030”- 0.120” (0.8 mm - 3 mm)

Typical Thicknesses

1/16” (1.5 mm)

1/8” (3 mm)

316/316L Insert Thickness 0.004”/0.005” (0.1/0.127 mm)

Temperature Limits

Cryogenic to 850°F (454ºC)

*The values are taken from BFG-6.1 and ROTT. Test results are subject to interpreta on and can lead to di ering design constants.

140

(2030)

120

(1740)

100

(1450)

(1160)

(870)

(580)

(290)

(0)

0 50 100 150 200 250 300 350 400 450 500

(0) (120) (210) (300) (390) (480) (570) (660) (750) (850) (930)

LG-L PRESSURE / TEMPERATURE GRAPH

All Pressure / Temperature values are based on 1/16” (1.5 mm) gasket thickness.

1. Suitable (Chemical Compatibility has to be considered).

2. Not Suitable.

High Temperature Sheet Products

MICA

Mica sheet is a readily-processible form comprised of a high percentage of mineral held together with small amount of silicon

binder. Its lamellar and non- brous structure, together with the low ratio of binder allows for a signi cant reduction of weight loss at

elevated temperatures, and especially when compared to other high temperature compositions. It resists a wide array of chemicals and is unaffected by water, acids, bases, solvents and mineral oils.

Typical Physical Properties

Property Method Typical Values

Density IEC 371-2 118 lbs/

Tensile Strength DIN 52910 2,900 psi (20 MPa)

Compressibility ASTM F36-J 25%

Recovery ASTM F36-J 35%

Igni on Loss @ 800ºC DIN 52911 <5%

Dielectric Strength IEC 243 - 23ºC

Creep Strength 50MPa, 300ºC

Creep Strength

7252psi, 572ºF

MAX Temperature N/A 1832 (1000)

MAX Pressure N/A 72.5 psi (5 bar)

DIN 52913

DIN 52913 5800 (40 MPa)

Approx. 20 kV/mm

Approx. 5801 psi

(1.9 g/cc)

(508 V/mil)

(40 MPa)

Mica sheet is used in automobile exhaust manifolds, gas turbines, gas and oil burners, heat

exchangers and other bolted  anged connections.

Note on High Temperature Gaskets: Lamons also utilizes mica in conjunction

with oxidation resistant grade  exible graphite as a  ller material for spiral wound gaskets, and as a facing material for kammpro led and corrugated gaskets in the semi-metallic section. While the HTG con guration is not quite as high in temperature rating as mica sheet, it offers

the sealing ability for pressure rating found in a semi-metallic gasket design

Ceramic Fiber

Ceramic  ber is available in sheet or blanket form and makes an excellent gasket material for hot air duct work with low pressures and light  anges. It is satisfactory for service up to approximately 2000ºF (1093ºC). Ceramic material is also used as a  ller material in spiral-

wound gaskets.

Sealing Global - Servicing Local

Non

- M

etallic Gasket Dimensions for Pipe Flanges

Soft material gaskets are dimensionally sized per ASME B16.21 for use with ASME B16.5

anges. Non-metallic gaskets are used in Raised Face (RF), Flat Face (FF), Welding Neck (WN), and Slip On (SO) anges. Typically, the outside diameter dimension is the bolt circle diameter

minus one bolt diameter unless a full face gasket is requested.

ASME B16.21 Gasket Tolerances:

Nominal Pipe Size (NPS) 12 and smaller Outside Diameter (OD): +0.0”, -1/16” (+0.0, -1.5 mm)

Nominal Pipe Size (NPS) 14 and Larger Outside Diameter (OD): +0.0”, -1/8” (+0.0, -3.0 mm)

Nominal Pipe Size (NPS) 12 and smaller Inside Diameter (ID): ± 1/16” (±1.5 mm)

Nominal Pipe Size (NPS) 14 and Larger Inside Diameter (ID): ± 1/8” (±3.0 mm)

Bolt Circle Diameter: ± 1/16” (±1.5 mm)

Center to center of adjacent bolt holes: ±1/32” (±1.0 mm)

Dimensions for Ring Gaskets per ASME B16.21

to Suit ASME B16.5 Flanges

Class 150

Nominal Pipe Size

(NPS)

1/2 0.84 21 1.88 48

3/4 1.06 27 2.25 57 1 1.31 33 2.62 67 1 1/4 1.66 42 3.00 76 1 1/2 1.91 49 3.38 86 2 2.38 60 4.12 105 2 1/2 2.88 73 4.88 124 3 3.50 89 5.38 137 3 1/2 4.00 102 6.38 162 4 4.50 114 6.88 175 5 5.56 141 7.75 197 6 6.62 168 8.75 222 8 8.62 219 11.00 279

10 10.75 273 13.38 340 12 12.75 324 16.13 410 14 14.00 356 17.75 451 16 16.00 406 20.25 514 18 18.00 457 21.62 549 20 20.00 508 23.88 607 24 24.00 610 28.25 718

Inside Diameter

(ID)

Inches mm Inches mm

Outside Diameter

(OD)

Dimensions for Ring Gaskets per ASME B16.21

Class 300

to Suit ASME B16.5 Flanges

Nominal

Pipe Size

(NPS)

1/2 0.84 21 2.12 54

3/4 1.06 27 2.62 67 1 1.31 33 2.88 73 1 1/4 1.66 42 3.25 83 1 1/2 1.91 49 3.75 95 2 2.38 60 4.38 111 2 1/2 2.88 73 5.12 130 3 3.50 89 5.88 149 3 1/2 4.00 102 6.50 165 4 4.50 114 7.12 181 5 5.56 141 8.50 216 6 6.62 168 9.88 251 8 8.62 219 12.12 308

10 10.75 273 14.25 362 12 12.75 324 16.62 422 14 14.00 356 19.12 486 16 16.00 406 21.25 540 18 18.00 457 23.50 597 20 20.00 508 25.75 654 24 24.00 610 30.50 775

Inside Diameter

(ID)

Inches mm Inches mm

Outside Diameter

(OD)

Class 400

Nominal Pipe Size

(NPS)

1/2 0.84 21 2.12 54

3/4 1.06 27 2.62 67 1 1.31 33 2.88 73 1 1/4 1.66 42 3.25 83 1 1/2 1.91 49 3.75 95 2 2.38 60 4.38 111 2 1/2 2.88 73 5.12 130 3 3.50 89 5.88 149 3 1/2 4.00 102 6.38 162 4 4.50 114 7.00 178 5 5.56 141 8.38 213 6 6.62 168 9.75 248 8 8.62 219 12.00 305

10 10.75 273 14.12 359 12 12.75 324 16.50 419 14 14.00 356 19.00 483 16 16.00 406 21.12 536 18 18.00 457 23.38 594 20 20.00 508 25.50 648 24 24.00 610 30.25 768

Inside Diameter

(ID)

Inches mm Inches mm

Outside Diameter

(OD)

Sealing Global - Servicing Local

Dimensions for Ring Gaskets per ASME B16.21

to Suit ASME B16.5 Flanges

Class 600

Nominal

Pipe Size

(NPS)

1/2 0.84 21 2.12 54

3/4 1.06 27 2.62 67 1 1.31 33 2.88 73 1 1/4 1.66 42 3.25 83 1 1/2 1.91 49 3.75 95 2 2.38 60 4.38 111 2 1/2 2.88 73 5.12 130 3 3.50 89 5.88 149 3 1/2 4.00 102 6.38 162 4 4.50 114 7.62 194 5 5.56 141 9.50 241 6 6.62 168 10.50 267 8 8.62 219 12.62 321

10 10.75 273 15.75 400 12 12.75 324 18.00 457 14 14.00 356 19.38 492 16 16.00 406 22.25 565 18 18.00 457 24.12 613 20 20.00 508 26.88 683 24 24.00 610 31.12 791

Inside Diameter

(ID)

Inches mm Inches mm

Outside Diameter

(OD)

Dimensions for Full Face Gaskets

Class 150

1/2 0.84 21 3.75 95 4 0.63 2.63 66.8

to Suit ASME B16.5 Flanges

Nominal

Pipe Size

(NPS)

1/2 0.84 21 3.50 89 4 0.62 2.38 60.3

3/4 1.06 27 3.88 99 4 0.62 2.75 69.9 1 1.31 33 4.25 108 4 0.62 3.12 79.4 1 1/4 1.66 42 4.63 118 4 0.62 3.50 88.9 1 1/2 1.91 49 5.00 127 4 0.62 3.88 98.4 2 2.38 60 6.00 152 4 0.75 4.75 120.7 2 1/2 2.88 73 7.00 178 4 0.75 5.50 139.7 3 3.50 89 7.50 191 4 0.75 6.00 152.4 3 1/2 4.00 102 8.50 216 8 0.75 7.00 177.8 4 4.50 114 9.00 229 8 0.75 7.50 190.5 5 5.56 141 10.00 254 8 0.88 8.50 215.9 6 6.62 168 11.00 279 8 0.88 9.50 241.3 8 8.62 219 13.50 343 8 0.

10 10.75 273 16.00 406 12 1.00 14.25 362.0 12 12.75 324 19.00 483 12 1.00 17.00 431.8 14 14.00 356 21.00 533 12 1.12 18.75 476.3 16 16.00 406 23.50 597 16 1.12 21.25 539.8 18 18.00 457 25.00 635 16 1.25 22.75 577.9 20 20.00 508 27.50 699 20 1.25 25.00 635.0 24 24.00 610 32.00 813 20 1.38 29.50 749.3

Inside Diameter

(ID)

Inches mm Inches mm Inches mm

Outside Diameter

(OD)

Holes

Bolt Hole Diameter

(Inches)

88 11.75 298.5

Bolt Circle Diameter

(BCD)# of Bolt

Class 300

Nominal

Pipe Size

(NPS)

3/4 1.06 27 4.62 117 4 0.75 3.25 82.6 1 1.31 33 4.88 124 4 0.75 3.50 88.9 1 1/4 1.66 42 5.25 133 4 0.75 3.88 98.4 1 1/2 1.91 49 6.12 155 4 0.88 4.50 114.3 2 2.38 60 6.50 165 8 0.75 5.00 127.0 2 1/2 2.88 73 7.50 191 8 0.88 5.88 149.2 3 3.50 89 8.25 210 8 0.88 6.63 168.3 3 1/2 4.00 102 9.00 229 8 0.88 7.25 184.2 4 4.50 114 10.00 254 8 0.88 7.88 200.0 5 5.56 141 11.00 279 8 0.88 9.25 235.0 6 6.62 168 12.50 318 12 0.88 10.63 269.9 8 8.62 219 15.00 381 12 1.00 13.00 330.2

10 10.75 273 17.50 445 16 1.13 15.25 387.4 12 14 14.00 356 23.00 584 20 1.25 20.25 514.4 16 16.00 406 25.50 648 20 1.38 22.50 571.5 18 18.00 457 28.00 711 24 1.38 24.75 628.7 20 20.00 508 30.50 775 24 1.38 27.00 685.8 24 24.00 610 36.00 914 24 1.63 32.00 812.8

Inside Diameter

(ID)

Inches mm Inches mm Inches mm

12.75 324 20.50 521 16 1.25 17.75 450.9

Outside Diameter (OD)

# of Bolt

Holes

Bolt Hole Diameter

(Inches)

Bolt Circle Diameter

(BCD)

Sealing Global - Servicing Local

1/2 0.84 21 3.75 95 4 0.63 2.62 66.5

1/2 0.84 21 3.75 95 4 0.63 2.63 66.8

Dimensions for Full Face Gaskets

to Suit ASME B16.5 Flanges

Class 400

Nominal

Pipe Size

(NPS)

3/4 1.06 27 4.63 117 4 0.75 3.25 82.6 1 1.31 33 4.88 124 4 0.75 3.50 88.9 1 1/4 1.66 42 5.25 133 4 0.75 3.88 98.4 1 1/2 1.91 49 6.13 156 4 0.88 4.50 114.3 2 2.38 60 6.50 165 8 0.75 5.00 127.0 2 1/2 2.88 73 7.50 191 8 0.88 5.88 149.2 3 3.50 89 8.25 210 8 0.88 6.63 168.3 3 1/2 4.00 102 9.00 229 8 1.00 7.25 184.2 4 4.50 114 10.00 254 8 1.00 7.88 200.0 5 5.56 141 11.00 279 8 1.00 9.25 235.0 6 6.62 168 12.50 318 12 1.00 10.63 269.9 8 8.62 219 15.00 381 12 1.13 13.00 330.2

10 10.75 273 17.50 445 16 1.25 15.25 387.4 12 14 14.00 356 23.00 584 20 1.38 20.25 514.4 16 16.00 406 25.50 648 20 1.50 22.50 571.5 18 18.00 457 28.00 711 24 1.50 24.75 628.7 20 20.00 508 30.50 775 24 1.63 27.00 685.8 24 24.00 610 36.00 914 24 1.88 32.00 812.8

Inside Diameter

(ID)

Inches mm Inches mm Inches mm

12.75 324 20.50 521 16 1.38 17.75 450.9

Outside Diameter

(OD)

# of Bolt

Holes

Bolt Hole

Diameter

(Inches)

Bolt Circle Diameter

(BCD)

Class 600

Nominal

Pipe Size

(NPS)

3/4 1.06 27 4.63 117 4 0.75 3.25 82.6 1 1.31 33 4.88 124 4 0.75 3.50 88.9 1 1/4 1.66 42 5.25 133 4 0.75 3.88 98.4 1 1/2 1.91 49 6.13 156 4 0.88 4.50 114.3 2 2.38 60 6.50 165 8 0.75 5.00 127.0 2 1/2 2.88 73 7.50 191 8 0.88 5.88 149.2 3 3.50 89 8.25 210 8 0.88 6.63 168.3 3 1/2 4.00 102 9.00 229 8 1.00 7.25 184.2 4 4.50 114 10.75 273 8 1.00 8.50 215.9 5 5.56 141 13.00 330 8 1.13 10.50 266.7 6 6.62 168 14.00 356 12 1.13 11.50 292.1 8 8.62 219 16.50 419 12 1.25 13.75 349.3

10 10.75 273 20.00 508 16 1.38 17.00 431.8 1

2 12.75 324 22.00 559 20 1.38 19.25 489.0 14 14.00 356 23.75 603 20 1.50 20.75 527.1 16 16.00 406 27.00 686 20 1.63 23.75 603.3 18 18.00 457 29.25 743 20 1.75 25.75 654.1 20 20.00 508 32.00 813 24 1.75 28.50 723.9 24 24.00 610 37.00 940 24 2.00 33.00 838.2

Inside Diameter

(ID)

Inches mm Inches mm Inches mm

Outside Diameter

(OD)

# of Bolt

Holes

Bolt Hole

Diameter

(Inches)

Bolt Circle Diameter

(BCD)

Dimensions for Ring Gaskets per ASME B16.21

to Suit ASME B16.47 Series A Flanges

Class 150

Nominal Pipe Size

(NPS)

26 26.00 660 30.50 775 28 28.00 711 32.75 832 30 30.00 762 34.75 883 32 32.00 813 37.00 940 34 34.00 864 39.00 991 36 36.00 914 41.25 1048 38 38.00 965 43.75 1111 40 40.00 1016 45.75 1162 42 42.00 1067 48.00 1219 44 44.00 1118 50.25 1276 46 46.00 1168 52.25 1327 48 48.00 1219 54.50 1384

50 50.00 1270 56.50 1435 52 52.00 1321 58.75 1492 54 54.00 1372 61.00 1549 56 56.00 1422 63.25 1607 58 58.00 1473 65.50 1664 60 60.00 1524 67.50 1715

Inside Diameter

(ID)

Inches mm Inches mm

Class 300

Outside Di

(OD)

ameter

Nominal

Pipe Size

(NPS)

26 26.00 660 32.88 835 28 28.00 711 35.38 899 30 30.00 762 37.50 953 32 32.00 813 39.62 1006 34 34.00 864 41.62 1057 36 36.00 914 44.00 1118 38 38.00 965 41.50 1054 40 40.00 1016 43.88 1115 42 42.00 1067 45.88 1165 44 44.00 1118 48.00 1219 46 46.00 1168 50.12 1273 48 48.00 1219 52.12 1324 50 50.00 1270 54.25 1378 52 52.00 1321 56.25 1429 54 54.00 1372 58.75 1492 56 56.00 1422 60.75 1543 58 58.00 1473 62.75 1594 60 60.00 1524 64.75 1645

nside Diameter

(ID)

Inches mm Inches mm

Outside Diameter

(OD)

Sealing Global - Servicing Local

Dimensions for Ring Gaskets per ASME B16.21

to Suit ASME B16.47 Series A Flanges

Class 400

Nominal

Pipe Size

(NPS)

26 26.00 660 32.75 832 28 28.00 711 35.12 892 30 30.00 762 37.25 946 32 32.00 813 39.50 1003 34 34.00 864 41.50 1054 36 36.00 914 44.00 1118 38 38.00 965 42.25 1073 40 40.00 1016 44.38 1127 42 42.00 1067 46.38 1178 44 44.00 1118 48.50 1232 46 46.00 1168 50.75 1289 48 48.00 1219 53.00 1346 50 50.00 1270 55.25 1403

52 52.00 1321 57.26 1454 54 54.00 1372 59.75 1518 56 56.00 1422 61.75 1568 58 58.00 1473 63.75 1619 60 60.00 1524 66.25 1683

nside Diameter

(ID)

Inches mm Inches mm

Outside Diameter

(OD)

Class 600

Nominal

Pipe Size

(NPS)

26 26.00 660 34.12 867 28 28.00 711 36.00 914 30 30.00 762 38.25 972 32 32.00 813 40.25 1022 34 34.00 864 42.25 1073 36 36.00 914 44.50 1130 38 38.00 965 43.50 1105 40 40.00 1016 45.50 1156 42 42.00 1067 48.00 1219 44 44.00 1118 50.00 1270 46 46.00 1168 52.26 1327 48 48.00 1219 54.75 1391 50 50.00 1270 57.00 1448 52 52.00 1321 59.00 1499 54 54.00 1372 61.25 1556 56 56.00 1422 63.50 1613 58 58.00 1473 65.50 1664 60 60.00 1524 67.75 1721

nside Diameter

(ID)

Inches mm Inches mm

Outside Diameter

(OD)

Dimensions for Full Face Gaskets to Suit

Class 300

ASME B16.47 Series A Flanges

Class 150

Nominal

Pipe Size

(NPS)

26 26.00 660 34.25 870 24 1.38 31.75 806.5 28 28.00 711 36.50 927 28 1.38 34.00 863.6 30 30.00 762 38.75 984 28 1.38 36.00 914.4 32 32.00 813 41.75 1060 28 1.63 38.50 977.9 34 34.00 864 43.75 1111 32 1.63 40.50 1028.7 36 36.00 914 46.00 1168 32 1.63 42.75 1085.9 38 38.00 965 48.75 1238 32 1.63 45.25 1149.4 40 40.00 1016 50.75 1289 36 1.63 47.25 1200.2 42 42.00 1067 53.00 1346 36 1.63 49.50 1257.3 44 44.00 1118 55.25 1403 40 1.63 51.75 1314.5 46 46.00 1168 57.25 14 48 48.00 1219 59.50 1511 44 1.63 56.00 1422.4 50 50.00 1270 61.75 1568 44 1.88 58.25 1479.6 52 52.00 1321 64.00 1626 44 1.88 60.50 1536.7 54 54.00 1372 66.25 1683 44 1.88 62.75 1593.9 56 56.00 1422 68.75 1746 48 1.88 65.00 1651.0 58 58.00 1473 71.00 1803 48 1.88 67.25 1708.2 60 60.00 1524 73.00 1854 52 1.88 69.25 1759.0

Inside Diameter

(ID)

Inches mm Inches mm Inches mm

Outside Diameter

(OD)

# of Bolt

Holes

40 1.63 53.75 1365.3

Bolt Hole

Diameter

Bolt Circle Diamet

(BCD)

Nominal

Pipe Size

(NPS)

26 26.00 662 38.25 972 28 1.75 34.50 876.3 28 28.00 713 40.75 1035 28 1.75 37.00 939.8 30 30.00 764 43.00 1092 28 1.88 39.25 997.0 32 32.00 815 45.25 1149 28 2.00 41.50 1054.1 34 34.00 866 47.50 1207 28 2.00 43.50 1104.9 36 36.00 917 50.00 1270 32 2.13 46.00 1168.4 38 38.00 968 46.00 1168 32 1.63 43.00 1092.2 40 40.00 1019 48.75 1238 32 1.75 45.50 1155.7 42 42.00 1070 50.75 1289 32 1.75 47.50 1206.5 44 44.00 1121 53.25 1353 32 1.88 49.75 1263.7 46 46.00 1172 55.75 1 48 48.00 1223 57.75 1467 32 2.00 54.00 1371.6 50 50.00 1274 60.25 1530 32 2.13 56.25 1428.8 52 52.00 1324 62.25 1581 32 2.13 58.25 1479.6 54 54.00 1375 65.25 1657 28 2.38 61.00 1549.4 56 56.00 1426 67.25 1708 28 2.38 63.00 1600.2 58 58.00 1477 69.25 1759 32 2.38 65.00 1651.0 60 60.00 1528 71.25 1810 32 2.38 67.00 1701.8

Inside Diameter

(ID)

Inches mm Inches mm Inches mm

Outside Diameter

(OD)

416 28 2.00 52.00 1320.8

# of Bolt

Holes

Bolt Hole

Diameter

Bolt Circle Diameter

(BCD)

Sealing Global - Servicing Local

Dimensions for Ring Gaskets per ASME B16.21

Class 150

Class 300

to Suit ASME B16.47 Series B Flanges

Nominal

Pipe Size

(NPS)

26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60

Inside Diameter

(ID)

Outside Diameter

(OD)

Inches mm Inches mm

26.00 660 28.56 725

28.00 711 30.56 776

30.00 762 32.56 827

32.00 813 34.69 881

34.00 864 36.81 935

36.00 914 38.88 988

38.00 965 41.12 1044

40.00 1016 43.12 1095

42.00 1067 45.12 1146

44.00 1118 47.12 1197

46.00 1168 49.44 1256

48.00 1219 51.44 1307

50.00 1270 53.44 1357

52.00 1321 55.44 1408

54.00 1372 57.62 1464

56.00 1422 59.62 1514

58.00 1473 62.19 1580

60.00 1524 64.19 1630

Nominal

Pipe Size

(NPS)

26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60

Inside Diameter

(ID)

Outside Diameter

(OD)

Inches mm Inches mm

26.00 660 30.38 772

28.00 711 32.50 826

30.00 762 34.88 886

32.00 813 37.00 940

34.00 864 39.12 994

36.00 914 41.25 1048

38.00 965 43.25 1099

40.00 1016 45.25 1149

42.00 1067 47.25 1200

44.00 1118 49.25 1251

46.00 1168 51.88 1318

48.00 1219 53.88 1369

50.00 1270 55.88 1419

52.00 1321 57.88 1470

54.00 1372 60.25 1530

56.00 1422 62.75 1594

58.00 1473 65.19 1656

60.00 1524 67.12 1705

Dimensions for Flat Ring Gaskets per ASME B16.21

Class 400

to Suit ASME B16.47 Series B Flanges

Nominal Pipe Size

(NPS)

26 28 30 32 34 36

Inside Diameter

(ID)

Inches mm Inches mm

26.00 660 29.38 746

28.00 711 31.50 800

30.00 762 33.75 857

32.00 813 35.88 911

34.00 864 37.88 962

36.00 914 40.25 1022

Outside Diameter

(OD)

Class 600

Nominal

Pipe Size

(NPS)

26 26.00 660 30.12 765 28 28.00 711 32.25 819 30 30.00 762 34.62 879 32 32.00 813 36.75 933 34 34.00 864 39.25 997 36 36.00 914 41.25 1048

Inside Diameter

(ID)

Inches mm Inches mm

Outside Diameter

(OD)

Sealing Global - Servicing Local

Dimensions for Full Face Gaskets to Suit

ASME B16.47 Series B Flanges

Class 150

Nominal Pipe Size

(NPS)

Inside Diameter

(ID)

Inches mm Inches mm Inches mm

26 26.00 660 30.94 786 36 0.88 29.31 744.5 28 28.00 711 32.94 837 40 0.88 31.31 795.3 30 30.00 762 34.94 887 44 0.88 33.31 846.1 32 32.00 813 37.06 941 48 0.88 35.44 900.2 34 34.00 864 39.56 1005 40 1.00 37.69 957.3 36 36.00 914 41.63 1057 44 1.00 39.75 1009.7 38 38.00 965 44.25 1124 40 1.13 42.13 1070.1 40 40.00 1016 46.25 1175 44 1.13 44.13 1120.9 42 42.00 1067 48.25 1226 48 1.13 46.13 1171.7 44 44.00 1118 50.25 1276 52 1.13 48.13 1222.5 46 46.00 1168 52.81 1341 40 48 48.00 1219 54.81 1392 44 1.25 52.56 1335.0 50 50.00 1270 56.81 1443 48 1.25 54.56 1385.8 52 52.00 1321 58.81 1494 52 1.25 56.56 1436.6 54 54.00 1372 61.00 1549 56 1.25 58.75 1492.3 56 56.00 1422 63.00 1600 60 1.25 60.75 1543.1 58 58.00 1473 65.94 1675 48 1.38 63.44 1611.4 60 60.00 1524 67.94 1726 52 1.38 65.44 1662.2

Outside Diameter

(OD)

# of Bolt

Holes

Bolt Hole

Diameter

Bolt Circle Diameter

(BCD)

1.25 50.56 1284.2

Class 300

Nominal

Pipe Size

(NPS)

26 26.00 660 34.13 867 32 1.38 31.63 803.4 28 28.00 711 36.25 921 36 1.38 33.75 857.3 30 30.00 762 39.00 991 36 1.50 36.25 920.8 32 32.00 813 41.50 1054 32 1.63 38.50 977.9 34 34.00 864 43.63 1108 36 1.63 40.63 1032.0

36 36.00 914 46.13 1172 32 1.75 42.88 1089.2 38 38.00 965 48.13 1223 36 1.75 44.88 1140.0 40 40.00 1016 50.13 1273 40 1.75 46.88 1190.8 42 42.00 1067 52.50 1334 36 1.88 49.00 1244.6 44 44.00 1118 54.50 1384 40 1.88 51.00 1295.4

46 46.00 1168 57.50 1461 48 48.00 1219 59.50 1511 40 2.00 55.75 1416.1 50 50.00 1270 61.50 1562 44 2.00 57.75 1466.9 52 52.00 1321 63.50 1613 48 2.00 59.75 1517.7 54 54.00 1372 65.88 1673 48 2.00 62.13 1578.1 56 56.00 1422 69.50 1765 36 2.38 65.00 1651.0

58 58.00 1473 71.94 1827 40 2.38 67.44 1713.0

60 60.00 1524 73.94 1878 40 2.38 69.44 1763.8

Inside Diameter

(ID)

Inches mm Inches mm Inches mm

Outside Diameter

(OD)

# of Bolt

Holes

36 2.00 53.75 1365.3

Bolt Hole Diameter

Bolt Circle Diameter

(BCD)

Section Two: Semi-Metallic Gaskets

Semi-Metallic gaskets are designed to feature soft, pliable sealing materials - which enhance the tightness of the assembly with lower overall load requirements when compared to full metallic

gaskets. They are most popular due to this con guration, and are available in a wide variety

of styles and sizes. They can typically be fabricated of any metal which is available in thin strip or sheet, and which can be welded. Therefore, they can be used against virtually any corrosive

medium dependent upon the choice of the metal and  ller/facing material. Additionally, they

can be used over the complete temperature range from cryogenic to approximately 2000ºF (1093ºC). Semi-metallic gaskets can generally be used in pressures ranging from vacuum to

those seen in ASME B16.5 standard 2500 pressure class  ange ratings. They are resilient and, as a consequence, can compensate somewhat for  ange movement that may occur due to

temperature gradients, variations of pressure and vibration.

Lamons offers the following  ller / facing materials for semi-metallic gaskets:

Temperature Range

PTFE Cryogenic to 500°F (260ºC)

Flexible Graphite Cryogenic to 850°F (454ºC)

Oxida on Resistant Grade Flexible Graphite Cryogenic to 975°F (524ºC)

HTG (High Temperature Gasket) Cryogenic to 1500°F (816ºC)

Mica Cryogenic to 1832°F (1000ºC)

Ceramic Cryogenic to 2000°F (1093ºC)

Sealing Global - Servicing Local

Lamons CorruKammTM Product Family

The Lamons CorruKammTM resembles a typical

kammproled sealing element in that it utilizes a heavy

substrate capable of extreme load bearing properties. The dramatic feature that this design incorporates is a precisely located corrugated pattern which greatly

enhances the ability to deect and compress under

load. This creates a scenario in which the gasket will be more forgiving where perfect alignment and parallelism do not exist.

The base core material is very thick and resembles

what is used with traditional kammprole technology.

This added substrate thickness, with an exacting corrugated pattern allows the gasket to recover substantially and maintain very stable load bearing

characteristics. A kammprole incorporates a specic

serration pattern on both sealing surfaces that do not relate in any way to the opposing sides. The CorruKammTM technology utilizes a geometry on the sealing surface that is machined

rather than formed. These corrugation proles are strategically aligned so that deection can

occur and maximum resilience and recovery can be achieved.

Lamons CorruKammTM technology is a revolutionary new design that provides the benets

of a kammprole technology with the additional attribute of recovery that is desired to offset ange relaxation and unloading. It combines the proven concepts of a kammprole and a

corrugated design.

The result eliminates many of the deciencies found in both designs while consolidating the benets. A machined prole, not formed, allows for a correcting alternated geometry, strategically indexed and aligned so that deection occurs. The result is maximum stability, recovery, resiliency, deection and conformance.

CorruKammTM CK1

Lamons Corrugated Metal Gasket (CMG) is manufactured without

a guide ring for tongue and groove, or recessed ange applications

such as male and female. It is typically used in heat exchanger applications and applied as an upgrade to double jacketed gaskets. It is highly suggested to have the nubbin (if present) machined out as a best

practice. Where pass partitions are required, they are also kamm proled

and laminated. They are the same thickness as the ring, and securely held in place with welds.

CorruKammTM CK2

Lamons CMG-EX gasket is constructed with an integral guide ring for

aligning purposes. It is suggested to be used in raised face anges. The

gasket is typically designed and sized per EN12560-6 spec for ASME B16.5

anges, but can be manufactured to t other standards.

CorruKamm

HTG

Lamons CMG-PTFE gasket is a problem solver for higher operating temperature scenarios. It utilizes sections of high performance mica/ phyllosilicate that protect oxidation resistant grade graphite and shields it from contact with oxidizers. It represents the best technology available in regards to torque retention and sealing ability at elevated temperatures. Lamons CMG-PTFE gaskets can be applied to high temperature applications to 1500°F (850°C) or higher, depending on operating conditions.

CorruKamm

PTFE

Lamons CMG-EX gasket is a premium variation of Lamons original

CMG gasket. The CMG-EX was designed speci cally for heat exchanger

applications and provides superior performance in cyclic applications and where a high level of radial shear is present. Differential movement

between  anges can cause tremendous relaxation issues on traditional heat

exchanger gaskets. This problem is addressed in the design of the CMG-EX gasket, as it maintains a highest degree of tightness through operation and the full cycle event.

Sealing Global - Servicing Local

Lamons Kammpro

Gasket

Product Family

Lamons Kammpro gaskets are recognized as a problem solver for heat exchangers, large vessels, and equipment that experience excessive movement due to thermal expansion. The Kammpro provides one of the tightest seals combined with superior load bearing characteristics. Kammpro gaskets consist of a metal sealing core with or without a guide ring. The sealing core is a solid metal gasket with concentric serrations on both sealing surfaces and

faced with a soft material such as exible graphite, EPTFE, or a Lamons HTG conguration depending

on operating conditions. It is the preferred design when needing improved performance at low seating stresses. The simultaneous actions of a high compressibility facing material on the outside of the grooved metal in combination with limited penetration of the tips of the solid metal core enhance the interaction of the two materials. This allows the components to perform individually to their optimum capabilities. Kammpro gaskets are manufactured in different materials and non-

circular shapes with extreme accuracy. They can also be custom engineered to t various applications. The suggested ange surface nish for Kammpro gaskets is 125- 250 AARH.

Kammpro L P 1 is manufactured without a guide ring for tongue and groove,

or recessed ange applications such as male and female. It is typically used in heat

exchanger applications and applied as an upgrade to double jacketed gaskets. It is highly suggested to have the nubbin (if present) machined out as a best practice. Where

pass partitions are required, they are also kamm proled and laminated. They are the same

thickness as the ring, and securely held in place with welds.

Kammpro LP2 is constructed with an integral guide ring

for aligning purposes. It is suggested to be used in raised face

anges. The gasket is typically designed and sized per EN12560-6 spec for ASME B16.5 anges, but can be manufactured to t other standards.

Kammpro LP3 utilizes a loose t guide ring. This popular

design is preferred for nominal pipe size and pressure class

raised face anges and is used in equipment with excessive

radial shear characteristics, thermal cycling, and expansions. The gasket is typically designed

and sized per EN12560-6 spec for ASME B16.5 anges, but can be manufactured to t other

standards.

Kammpro-HTG is a problem solver for higher operating

temperature scenarios. It utilizes sections of high performance mica/phyllosilicate that protect oxidation resistant grade graphite and shields it from contact with oxidizers. Lamons Kammpro-HTG represents the best technology available in regards to torque retention and sealing ability at elevated temperatures. Lamons Kammpro HTG gaskets can be applied to high temperature applications to 1500°F (850°C) or higher, depending on operating conditions.

Kammpro ACHE (Fin Fan) gaskets are speci cally designed to replace

traditional solid metal “washer” type gaskets typically used in air cooled heat

exchangers. The design takes advantage of the serrated pro le with graphite facing to bite against the  nish of the header plate.

Kammpro Dual Seal gaskets are designed

to mate with leak detection devices incorporated

into  anged assemblies used in critical applications,

such as lethal service. This highly effective gasket has a primary seal followed towards the outer portion of the sealing area by a relief section with through holes, where the leak detection equipment is mounted. Past this relief section is a secondary sealing area that will maintain the integrity of the bolted joint should the primary seal be compromised

and pressure differential is identi ed.

Dimensions for Kammpro LP3/LP2 per EN 12560 - 6

to Suit ASME B16.5 Flanges (Inches)

Guide Ring Outside Diameter (OD)

Nominal Pipe

Size (NPS)

1/2 0.91 1.31 1.75 2.00 2.00 2.00 2.37 2.37 2.63

3/4 1.13 1.56 2.12 2.50 2.50 2.50 2.63 2.63 2.87 1 1.44 1.87 2.50 2.75 2.75 2.75 3.00 3.00 3.25 1 1/4 1.75 2.37 2.87 3.13 3.13 3.13 3.37 3.37 4.00 1 1/2 2.06 2.75 3.25 3.63 3.63 3.63 3.75 3.75 4.50 2 2.75 3. 2 1/2 3.25 4.00 4.75 5.00 5.00 5.00 6.37 6.37 6.50 3 3.87 4.87 5.25 5.75 5.75 5.75 6.50 6.75 7.63 3 1/2 4.37 5.37 6.25 6.37 6.25 6.25 - - 4 4.87 6.06 6.75 7.00 6.87 7.50 8.00 8.13 9.12 5 5.94 7.19 7.63 8.37 8.25 9.37 9.63 9.87 10.87 6 7.00 8.37 8.63 9.75 9.63 10.37 11.25 11.00 12.37 8 9.00 10.50 10.87 12.00 11.87 12.50 14.00 9.81 15.12

10 11.13 12.63 13.25 14.13 14.00 15.63 17.00 17.00 18.62 12 13.37 14.87 16.00 16.50 16.37 17.87 19.50 20.37 21.50 14 14.6 16 16.63 18.37 20.13 21.13 21.00 22.12 22.50 25.12 18 18.87 20.87 21.50 23.37 23.25 24.00 25.00 27.63 20 20.87 22.87 23.75 25.63 25.37 26.75 27.37 29.62 22 22.87 24.87 25.87 27.63 27.50 28.75 - 24 24.87 26.87 28.13 30.37 30.13 31.00 32.87 35.37 -

Core Inside

Diameter (ID)

Inches Inches Inches Inches Inches Inches Inches Inches Inches

3 1

Core Outside

Diameter (OD)

6.13 17.63 19.00 18.87 19.25 20.37 22.63 -

Class 150 Class 300 Class 400 Class 600 Class 900 Class 1500 Class 2500

4.00 4.25 4.25 4.25 5.50 5.50 5.62

Sealing Global - Servicing Local

Dimensions for Kammpro LP3/LP2 per EN 12560-6

to Suit ASME B16.5 Flanges (Millimeters)

Guide Ring Outside Diameter (OD)

Nominal Pipe

Size (NPS)

1/2 23.0 33.3 44.4 50.8 50.8 50.8 60.3 60.3 66.7

3/4 28.6 39.7 53.9 63.5 63.5 63.5 66.7 66.7 73.0 1 36.5 47.6 63.5 69.8 69.8 69.8 76.2 76.2 82.5 1 1/4 44.4 60.3 73.0 79.4 79.4 79.4 85.7 85.7 101.6 1 1/2 52.4 69.8 82.5 92.1 92.1 92.1 95.2 95.2 114.3 2 69.8 88.9 101.6 108.0 108.0 108.0 139.7 139.7 142. 2 1/2 82.5 101.6 120.6 127.0 127.0 127.0 161.9 161.9 165.1 3 98.4 123.8 133.4 146.1 146.1 146.1 165.1 171.5 193.7 3 1/2 111.1 136.5 158.8 161.9 158.7 158.7 - - 4 123.8 154.0 171.5 177.8 174.6 190.5 203.2 206.4 231.7 5 150.8 182.6 193.7 212.7 209.5 238.1 244.5 250.8 276.2 6 177.8 212.7 219.1 247.7 244.5 263.5 285.8 279.4 314.3 8 228.6 266.7 276.2 304.8 301.6 317.5 355.6 249.3 384.1

10 282.6 320.7 336.5 358.8 355.6 396.9 431.8 431.8 473.0 12 339.7 377.8 406.4 419.1 415.9 454.0 495. 14 371.5 409.6 447.7 482.6 479.4 488.9 517.5 574.7 16 422.3 466.7 511.2 536.6 533.4 561.9 571.5 638.1 18 479.4 530.2 546.1 593.7 590.5 609.6 635.0 701.7 20 530.2 581.0 603.2 650.9 644.5 679.5 695.3 752.4 22 581.0 631.8 657.2 701.7 698.5 730.3 - - 24 631.8 682.6 714.4 771.5 765.2 787.4 835.0 898.5 -

Core Inside

Diameter (ID)

mm mm mm mm mm mm mm mm mm

Core Outside

Diameter (OD)

Class 150 Class 300 Class 400 Class 600 Class 900 Class 1500 Class 2500

3 517.5 546.1

Dimensions for Kammpro LP3/LP2 per ASME B16.20 2012 to

Suit B16.5 Flanges (Inches)

Guide Ring Outside Diameter (OD)

Nominal Pipe

Size (NPS)

1/2 0.91 1.31

3/4 1.13 1.56 2.25 2.63 2.63 2.63 2.75 2.75 3.00

1 1.44 1.87 2.63 2.88 2.88 2.88 3.13 3.13 3.38

1 1/4 1.75 2.37 3.00 3.25 3.25 3.25 3.50 3.50 4.13

1 1/2 2.06 2.75 3.38 3.75 3.75 3.75 3.88 3.88 4.63

2 2.75 3.50 4.13 4.38 4.38 4.38 5.63 5.63 5.75

2 1/2 3.25 4.00 4.88 5.13 5.13 5.13 6.50 6.50 6.63

3 3.87 4.87 5.38 5.88 5.88 5.88 6.63 6.88 7.75

4 4.87 6.06 6.88 7.13 7.00 7.63 8.13 8.25 9.25

5 5.94 7.19 7.75 8.50 8.38 9.50 9.75 10.00 11.00

6 7.00 8.37 8.75 9.88 9.75 10.50 11.38 11.13 12.50

8 9.00 10.50 11.00 12.13 12.00 12.63 14.13 13.88 15.25

10 11.13 12.63 13.38 14.25 14.13 15.75 17.13 17.13 18.75

12 13.37 14.87 16.13 16.63 16.50 18.00 19.63 20.50 21.63

14 14.63 16.13 17.75 19.31 19.00 19.38 20.50 22.75 -

16 16.63 18.37 20.25 21.25 21.13 22.25 22.63 25.25 -

18 18.87 20.87 21.63 23.50 23.38 24.13 25.13 27.75 -

20 20.87 22.87 23.88 25.75 25.50 26.88 27.50 29.75 -

24 24.87 26.87 28.25 30.50 30.25 31.13 33.00 35.50 N/A

Core Inside

Diameter (ID)

Core Outside

Diameter (OD)

Class 150 Class 300 Class 400 Class 600 Class 900 Class 1500 Class 2500

1.88 2.13 2.13 2.13 2.50 2.50 2.75

Sealing Global - Servicing Local

Dimensions for Kammpro LP3/LP2 per ASME B16.20 2012 to

Suit B16.5 Flanges (millimeters)

Guide Ring Outside Diameter (OD)

Nominal Pipe

Size (NPS)

1/2 23.1 33.3 47.8 54.1 54.1 54.1 63.5 63.5 69.9

3/4

1 1/4

1 1/2

2 1/2

Core Inside

Diameter (ID)

28.7 39.6 57.2 66.8 66.8 66.8 69.9 69.9 76.2

36.6 47.5 66.8 73.2 73.2 73.2 79.5 79.5 85.9

44.5 60.2 76.2 82.6 82.6 82.6 88.9 88.9 104.9

52.3 69.9 85.9 95.3 95.3 95.3 98.6 98.6 117.6

69.9 88.9 104.9 111.3 111.3 111.3 143.0 143.0 146.1

82.6 101.6 124.0 130.3 130.3 130.3 165.1 165.1 168.4

98.3 123.7 136.7 149.4 149.4 149.4 168.4 174.8 196.9

123.7 153.9 174.8 181.1 177.8 193.8 206.5 209.6 235.0

150.9 182.6 196.9 215.9 212.9 241.3 247.7 254.0 279.4

177.8 212.6 222.3 251.0 247.7 266.7 289.1 282.7 317.5

228.6 266.7 279.4 308.1 304.8 320.8 358.9 352.6 387.4

282.7 320.8 339.9 362.0 358.9 400.1 435.1 435.1 476.3

339.6 377.7 409.7 422.4 419.1 457.2 498.6 520.7 549.4

371.6 409.7 450.9 485.9 482.6 492.3 520.7 577.9

422.4 466.6 514.4 539.8 536.7 565.2 574.8 641.4

479.3 530.1 549.4 596.9 593.9 612.9 638.3 704.9

530.1 580.9 606.6 654.1 647.7 682.8 698.5 755.7

631.7 682.5 717.6 774.7 768.4 790.7 838.2 901.7

Core Outside

Diameter (OD)

Class 150 Class 300 Class 400 Class 600 Class 900 Class 1500 Class 2500

N/A

Dimensions for Kammpro LP3/LP2 per ASME B16.47 Series A

Centering

to Suit B16.47 Series A (Inches)

Class 150 Class 300

Grooved Core

Inside

NPS

Diameter

26 26.50 27.75 30.50 27.00 29.00 32.88 27.00 29.00 32.75 27.00 29.00 34.13 27.00 29.00 34.75

28 28.50 29.75 32.75 29.00 31.00 35.38 29.00 31.00 35.13 29.00 31.00 36.00 29.00 31.00 37.25

30 30.50 31.75 34.75 31.25 33.25 37.50 31.25 33.25 37.25 31.25 33.25 38.25 31.25 33.25 39.75

32 32.50 33.88 37.00 33.50 35.50 39.63 33.50 35.50 39.50 33.50 35.50 40.25 33.50 35.50 42.25

34 34.50 35.88 39.00 35.50 37.50 41.63 35.50 37.50 41.50 35.50 37.50 42.25 35.50 37.50 44.75

36 36.50 38.13 41.25 37.63 39.63 44.00 37.63 39.63 44.00 37.63 39.63 44.50 37.75 39.75 47.25

38 38.50 40.13 43.75 38.50 40.00 41.50 38.25 40.25 42.25 39.00 41.00 43.50 40.75 42.75 47.25

40 40.50 42.13 45.75 40.25 42.13 43.88 40.38 42.38 44.38 41.25 43.25 45.50 43.25 45.25 49.25

42 42.50 44.25 48.00 42.25 44.13 45.88 42.38 44.38 46.38 43.50 45.50 48.00 45.25 47.25 51.25

44 44.50 46.38 50.25 44.50 46.50 48.00 44.50 46.50 48.50 45.75 47.75 50.00 47.50 49.50 53.88

46 46.50 48.38 52.25 46.38 48.38 50.13 47.00 49.00 50.75 47.75 49.75 52.25 50.00 52.00 56.50

48 48.50 50.38 54.50 48.63 50.63 52.13 49.00 51.00 53.00 50.00 52.00 54.75 52.00 54.00 58.50

50 50.50 52.50 56.50 51.00 53.00 54.25 51.00 53.00 55.25 52.00 54.00 57.00 -- -- --

52 52.50 54.50 58.75 53.00 55.00 56.25 53.00 55.00 57.25 54.00 56.00 59.00 -- -- --

54 54.50 56.50 61.00 55.25 57.25 58.75 55.25 57.25 59.75 56.25 58.25 61.25 -- -- --

56 56.50 63.25 63.25 57.25 59.25 60.75 57.25 59.25 61.75 58.25 60.25 63.50 -- -- --

58 58.50 65.50 65.50 59.50 61.50 62.75 59.25 61.25 63.75 60.50 62.50 65.50 -- -- --

60 60.50 67.50 67.50 61.50 63.50 64.75 61.75 63.75 66.25 62.75 64.75 68.25 -- -- --

Outside

Diameter

Ring

Outside

Diameter

Grooved Core

Inside

Diameter

Outside

Diameter

Ring

Outside

Diameter

Grooved Core

Inside

Class 400

Outside

Diameter

Ring

Outside

Diameter

Grooved Core

Inside

Diameter

Class 600

Outside

Diameter

Ring

Outside

Diameter

Grooved Core

Inside

Diameter

Class 900

Outside

Diameter

Ring

Outside

Diameter

Sealing Global - Servicing Local

Dimensions for Kammpro LP3/LP2 per ASME B16.47 Series A

Centering

Ring

Centering

Ring

Centering

Ring

Centering

Ring

Centering

Ring

to Suit B16.47 Series A (Millimeters)

Class 150 Class 300

Grooved Core

Inside

NPS

Diameter

26 673.1 704.9 774.7 685.8 736.6 835.2 685.8 736.6 831.9 685.8 736.6 866.9 685.8 736.6 882.7

28 723.9 755.7 831.9 736.6 787.4 898.7 736.6 787.4 892.3 736.6 787.4 914.4 736.6 787.4 946.2

30 774.7 806.5 882.7 793.8 844.6 952.5 793.8 844.6 946.2 793.8 844.6 971.6 793.8 844.6 1009.7

32 825.5 860.6 939.8 850.9 901.7 1006.6 850.9 901.7 1003.3 850.9 901.7 1022.4 850.9 901.7 1073.2

34 876.3 911.4 990.6 901.7 952.5 1057.4 901.7 952.5 1054.1 901.7 952.5 1073.2 901.7 952.5 1136.7

36 927.1 968.5 1047.8 955.8 1006.6 1117.6 955.8 1006.6 1117.6 955.8 1006.6 1130.3 958.9 1009.7 1200.2

38 977.9 1019.3 1111.3 977.9 1016.0 1054.1 971.6 1022.4 1073.2 990.6 1041.4 1104.9 1035.1 1085.9 1200.2

40 1028.7 1070.1 1162.1 1022.4 1070.1 1114.6 1025.7 1076.5 1127.3 1047.8 1098.6 1155.7 1098.6 1149.4 1251.0

42 1079.5 1124.0 1219.2 1073.2 1120.9 1165.4 1076.5 1127.3 1178.1 1104.9 1155.7 1219.2 1149.4 1200.2 1301.8

44 1130.3 1178.1 1276.4 1130.3 1181.1 1219.2 1130.3 1181.1 1231.9 1162.1 1212.9 1270.0 1206.5 1257.3 1368.6

46 1181.1 1228.9 1327.2 1178.1 1228.9 1273.3 1193.8 1244.6 1289.1 1212.9 1263.7 1327.2 1270.0 1320.8 1435.1

48 1231.9 1279.7 1384.3 1235.2 1286.0 1324.1 1244.6 1295.4 1346.2 1270.0 1320.8 1390.7 1320.8 1371.6 1485.9

50 1282.7 1333.5 1435.1 1295.4 1346.2 1378.0 1295.4 1346.2 1403.4 1320.8 1371.6 1447.8 -- -- --

52 1333.5 1384.3 1492.3 1346.2 1397.0 1428.8 1346.2 1397.0 1454.2 1371.6 1422.4 1498.6 -- -- --

54 1384.3 1435.1 1549.4 1403.4 1454.2 1492.3 1403.4 1454.2 1517.7 1428.8 1479.6 1555.8 -- -- --

56 1435.1 1485.9 1606.6 1454.2 1505.0 1543.1 1454.2 1505.0 1568.5 1479.6 1530.4 1612.9 -- -- --

58 1485.9 1536.7 1663.7 1511.3 1562.1 1593.9 1505.0 1555.8 1619.3 1536.7

60 1536.7 1587.5 1714.5 1562.1 1612.9 1644.7 1568.5 1619.3 1682.8 1593.9 1644.7 1733.6 -- -- --

Outside

Diameter

Outside

Diameter

Grooved Core

Inside

Diameter

Outside

Diameter

Outside

Diameter

Grooved Core

Inside

Class 400

Outside

Diameter

Outside

Diameter

Grooved Core

Inside

Diameter

Class 600

Outside

Diameter

1587.5

Class 900

Grooved Core

Outside

Diameter

1663.7 -- -- --

Inside

Diameter

Outside

Diameter

Outside

Diameter

Dimensions for Kammpro LP3/LP2 per ASME B16.47 Series B

Centering

to Suit B16.47 Series B (Inches)

Class 150 Class 300

Grooved Core

Inside

NPS

Diameter

26 26.50 27.50 28.56 26.50 28.00 30.38 26.25 27.50 29.38 26.13 28.13 30.13 27.25 29.50 33.00

28 28.50 29.50 30.56 28.50 30.00 32.50 28.13 29.50 31.50 27.75 29.75 32.25 29.25 31.50 35.50

30 30.50 31.50 32.56 30.50 32.00 34.88 30.13 31.75 33.75 30.63 32.63 34.63 31.75 33.75 37.75

32 32.50 33.50 34.69 32.50 34.00 37.00 32.00 33.88 35.88 32.75 34.75 36.75 34.00 36.00 40.00

34 34.50 35.75 36.81 34.50 36.00 39.13 34.13 35.88 37.88 35.00 37.00 39.25 36.25 38.25 42.25

36 36.50 37.75 38.88 36.50 38.00 41.25 36.13 38.00 40.25 37.00 39.00 41.25 37.25 39.25 44.25

38 38.38 39.75 41.13 39.75 41.25 43.25 38.25 40.25 42.25 39.00 41.00 43.50 40.75 42.75 47.25

40 40.25 41.88 43.13 41.75 43.25 45.25 40.38 42.38 44.38 41.25 43.25 45.50 43.25 45.25 49.25

42 42.50 43.88 45.13 43.75 45.25 47.25 42.38 44.38 46.38 43.50 45.50 48.00 45.25 47.25 51.25

44 44.25 45.88 47.13 45.75 47.25 49.25 44.50 46.50 48.50 45.75 47.75 50.00 47.50 49.50 53.88

46 46.50 48.19 49.44 47.88 49.38 51.88 47.00 49.00 50.75 47.75 49.75 52.25 50.00 52.00 56.50

48 48.50 50.00 51.44 49.75 51.63 53.88 49.00 51.00 53.00 50.00 52.00 54.75 52.00 54.00 58.50

50 50.50 52.19 53.44 51.88 53.38 55.88 51.00 53.00 55.25 52.00 54.00 57.00 -- -- --

52 52.50 54.19 55.44 53.88 55.38 57.88 53.00 55.00 57.25 54.00 56.00 59.00 -- -- --

54 54.50 56.00 57.63 55.25 57.25 60.25 55.25 57.25 59.75 56.25 58.25 61.25 -- -- --

56 56.88 58.19 59.63 58.25 60.00 62.75 57.25 59.25 61.75 58.25 60.25 63.50 -- -- --

58 59.08 60.19 62.19 60.44 61.94 65.19 59.25 61.25 63.75 60.50 62.50 65.50 -- -- --

60 61.31 62.44 64.19 62.56 64.19 67.19 61.75 63.75 66.25 62.75 64.75 68.25 -- -- --

Outside

Diameter

Ring

Outside

Diameter

Grooved Core

Inside

Diameter

Outside

Diameter

Ring

Outside

Diameter

Grooved Core

Inside

Class 400

Outside

Diameter

Ring

Outside

Diameter

Grooved Core

Inside

Diameter

Class 600

Outside

Diameter

Ring

Outside

Diameter

Grooved Core

Inside

Diameter

Class 900

Outside

Diameter

Ring

Outside

Diameter

Sealing Global - Servicing Local

Dimensions for Kammpro LP3/LP2 per ASME B16.47 Series B

to Suit B16.47 Series B (Millimeters)

Grooved Core

Inside

Class 400

Outside

Diameter

Centering

Ring

Outside

Diameter

Class 150 Class 300

Centering

Ring

Inside

NPS

Diameter

26 673.1 698.5 725.4 673.1 711.2 771.7 666.8 698.5 746.3 663.7 714.5 765.3 692.2 749.3 838.2

28 723.9 749.3 776.2 723.9 762.0 825.5 714.5 749.3 800.1 704.9 755.7 819.2 743.0 800.1 901.7

30 774.7 800.1 827.0 774.7 812.8 886.0 765.3 806.5 857.3 778.0 828.8 879.6 806.5 857.3 958.9

32 825.5 850.9 881.1 825.5 863.6 939.8 812.8 860.6 911.4 831.9 882.7 933.5 863.6 914.4 1016.0

34 876.3 908.1 935.0 876.3 914.4 993.9 866.9 911.4 962.2 889.0 939.8 997.0 920.8 971.6 1073.2

36 927.1 958.9 987.6 927.1 965.2 1047.8 917.7 965.2 1022.4 939.8 990.6 1047.8 946.2 997.6 1124.0

38 974.9 1009.7 1044.7 1009.7 1047.8 1098.6 971.6 1022.4 1073.2 990.6 1041.4 1104.9 1035.1 1085.9 1200.2

40 1022.4 1063.8 1095.5 1060.5 1098.6 1149.4 1025.7 1076.5 1127.3 1047.8 1098.6 1155.7 1098.6 1149.4 1251.0

42 1079.5 1114.6 1146.3 1111.3 1149.4 1200.2 1076.5 1127.3 1178.1 1104.9 1155.7 1219.2 1149.4 1200.2 1301.8

44 1124.0 1165.4 1197.1 1162.1 1200.2 1251.0 1130.3 1181.1 1231.9 1162.1 1212.9 1270.0 1206.5 1257.3 1368.6

46 1181.1 1224.0 1255.8 1216.2 1254.3 1317.8 1193.8 1244.6 1289.1 1212.9 1263.7 1327.2 1270.0 1320.8 1435.1

48 1231.9 1270.0 1306.6 1263.7 1311.4 1368.6 1244.6 1295.4 1346.2 1270.0 1320.8 1390.7 1320.8 1371.6 1485.9

50 1282.7 1325.6 1357.4 1317.8 1355.9 1419.4 1295.4 1346.2 1403.4 1320.8 1371.6 1447.8 -- -- --

52 1333.5 1376.4

54 1384.3 1422.4 1463.8 1403.4 1454.2 1530.4 1403.4 1454.2 1517.7 1428.8 1479.6 1555.8 -- -- --

56 1444.8 1478.0 1514.6 1479.6 1524.0 1593.9 1454.2 1505.0 1568.5 1479.6 1530.4 1612.9 -- -- --

58 1500.6 1528.8 1579.6 1535.2 1573.3 1655.8 1505.0 1555.8 1619.3 1536.7 1587.5 1663.7 -- -- --

60 1557.3 1586.0 1630.4 1589.0 1630.4 1706.6 1568.5 1619.3 1682.8 1593.9 1644.7 1733.6 -- -- --

Outside

Diameter

Outside

Diameter

1408.2

Grooved Core

Inside

Diameter

Outside

Diameter

1368.6 1406.7 1470.2 1346.2 1397.0 1454.2 1371.6 1422.4 1498.6 -- -- --

Centering

Ring

Outside

Diameter

Grooved Core

Inside

Class 600

Outside

Diameter

Centering

Ring

Outside

Diameter

Grooved CoreGrooved Core

Inside

Diameter

Class 900

Outside

Diameter

Centering

Ring

Outside

Diameter

Dimensions for Kammpro LP3/LP2 per EN 1514 - 6 to

mm Inches

10 0.87 1.42 1.81 1.81 1.81 1.81 2.20 2.20 2.20 2.64 2.64 2.64

1.02 1.65 2.01 2.01 2.01 2.01 2.40 2.40 2.40 2.83 2.83 --

1.22 1.85 2.40 2.40 2.40 2.40 -- -- -- -- -- -25 1.42 2.05 2.80 2.80 2.80 2.80 3.23 3.23 3.23 3.27 3.62 4.09 32 1.81 2.44 2.60 3.23 3.23 3.23 3.23 -- -- -- -- -- -40 2.09 2.72 2.87 3.62 3.62 3.62 3.62 4.06 4.06 4.06 4.29 4.69 5.31 50 2.56 3.19 3.43 4.21 4.21 4.21 4.21 4.45 4.69 4.69 4.88 5.28 5.91 65 3.19 3.94 4.06 5.00 5.00 5.00 5.00 5.39 5.63 5.63 6.02 6.69 7.56 8

0 3.74 4.53 4.76 5.59 5.59 5.59 5.59 5.83 6.06 6.06 6.69 7.48 8.15 100 4.65 5.43 5.75 6.38 6.38 6.61 6.61 6.85 7.09 7.09 7.95 9.02 10.08 125 5.59 6.38 7.01 7.56 7.56 7.64 7.64 8.27 8.54 8.54 9.53 10.79 11.85 150 6.69 7.48 8.35 8.54 8.54 8.82 8.82 9.72 10.12 10.12 11.18 12.24 13.70 175 7.68 8.46 9.65 9.72 9.72 10.00 10.43 10.91 11.30 11.18 12.44 14.09 15.83 200 8.66 9.45 9.76 11.02 10.71 10.71 11.18 11.42 12.17 12.76 12.76 14.09 15.67 17.40 250 10.63 11.42 11.81 13.39 12.87 12.91 13.39 13.

86 14.33 15.39 15.28 17.40 19.21 -300 12.60 13.39 14.02 15.75 14.84 15.08 15.75 16.42 16.69 18.03 18.03 21.10 -- -350 14.76 15.55 16.34 -- 17.20 17.44 17.99 18.66 19.13 20.16 -- -- -- -400 16.77 17.72 18.66 -- 19.25 19.49 20.24 21.50 21.38 22.52 -- -- -- -450 18.90 19.92 -- -- 21.22 21.85 -- 22.48 -- -- -- -- -- -500 20.87 22.05 23.15 -- 23.39 24.29 24.57 24.72 25.87 27.72 -- -- -- -600 24.80 26.14 27.56 -- 27.36 28.90 28.78 29.41 30.08 32.01 -- -- -- -700 28.74 30.31 31.97 -- 31.89 3

1.65 32.80 33.54 34.61 37.40 -- -- -- -800 32.68 34.49 34.88 -- 36.10 35.87 37.09 38.35 38.90 -- -- -- -- -900 36.61 38.66 39.13 -- 40.04 39.80 41.02 42.68 43.62 -- -- -- -- --

1000 40.94 43.23 43.70 -- 44.25 44.41 45.43 47.01 48.03 -- -- -- -- -1200 49.21 51.97 52.52 -- 52.80 52.83 53.70 55.04 57.17 -- -- -- -- -1400 56.69 59.92 -- -- 60.94 60.71 62.13 63.70 -- -- -- -- -- -1600 64.96 6.77 -- -- 69.76 69.45 70.79 72.05 -- -- -- -- -- -1800 72.83 75.35 -- -- 77.64 77.32 78.74 -- -- -- -- -- -- -2000 80.71 83.46 -- -- 85.91 85.35 87.80 -- -- -- -- -- -- -2200 88.58 91.65 -- -- 93.86 93.62 -- -- -- -- -- -- -- -2400 96.85 98.90 -- -- 102.13 -- -- -- -- -- -- -- -- -2600 105.12 107.40 -- -- 110.00 -- -- -- -- -- -- -- -- -2800 113.78 116.22 -- -- 118.66 -- -- -- -- -- -- -- -- -3000 122.05 124.65 -- -- 127.09 -- -- -- -- -- -- -- -- --

See PN 64 to

PN 160

See PN 250

to PN 400

PN 40 PN 64

Inches

PN 250 PN 320 PN 400PN 100 PN 160

Inches

Core

Inside

Diameter

Core Outside Diameter (OD)

PN10/40 PN 64/160 PN 250/400 PN 25

Guide Ring Outside Diameter (OD)

PN 10 PN 16

Suit Type A and B Flanges Facings (Inches)

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Dimensions for Kammpro LP3/LP2 per EN 1514 - 6 to

Suit Type A and B Flanges Facings (Millimeters)

Core Inside

Diameter

(ID)

mm mm

10 22 36 46 46 46 46 56 56 56 67 67 67 15 26 42 51 51 51 51 61 61 61 72 72 -20 31 47 61 61 61 61 -- -- -- -- -- -25 36 52 71 71 71 71 82 82 82 83 92 104

32 46 62 66 82 82 82 82 -- -- -- -- -- -40 53 69 73 92 92 92 92 103 103 103 109 119 135 50 65 81 87 107 107 107 107 113 119 119 124 134 150 65 81 100 103 127 127 127 127 137 143 143 153 170 192

80 95 115 121 142 142 142 142 148 154 154 170 190 207 100 118 138 146 162 162 168 168 174 180 180 202 22 9 256 125 142 162 178 192 192 194 194 210 217 217 242 27 4 301 150 170 190 212 217 217 224 224 247 175 195 215 245 247 247 254 265 277 287 284 316 35 8 402 200 220 240 248 280 272 272 284 290 309 324 324 358 398 442 250 270 290 300 340 327 328 340 352 364 391 388 442 488 -300 320 340 356 400 377 383 400 417 424 458 458 536 -- -350 375 395 415 -- 437 443 457 474 486 512 -- -- -- -400 426 450 474 -- 489 495 514 546 543 572 -- -- -- -450 480 506 -- -- 539 555 -- 571 -- -- -- -- -- -500 530 560 588 -- 594 617 624 628 657 704 -- -- -- -600 630 664 700 -- 695 734 731 747 764 813 -- -- -- -700 730 770 812 -- 8 800 830 876 886 -- 917 911 942 974 988 -- -- -- -- -900 930 982 994 -- 1017 1011 1042 1084 1108 -- -- -- -- --

1000 1040 1098 1110 -- 1124 1128 1154 1194 1220 -- -- -- -- -1200 1250 1320 1334 -- 1341 1342 1364 1398 1452 -- -- -- -- -1400 1440 1522 -- -- 1548 1542 1578 1618 -- -- -- -- -- -1600 1650 172 -- -- 1772 1764 1798 1830 -- -- -- -- -- -1800 1850 1914 -- -- 1972 1964 2000 -- -- -- -- -- -- -2000 2050 2120 -- -- 2182 2168 2230 -- -- -- -- -- -- --

2200 2250 2328 -- -- 2384 2378 2400 2460 2512 -- -- 2594 -- -- -- -- -- -- -- -- -2600 2670 2728 -- -- 2794 -- -- -- -- -- -- -- -- --

2800 2890 2952 -- -- 3014 -- -- -- -- -- -- -- -- --

3000 3100 3166 -- -- 3228 -- -- -- -- -- -- -- -- --

Core Outside Diameter (OD) Guide Ring Outside Diameter (OD)

See PN 64 to

PN 160

PN 64/160 PN 250/400 PN 400

See PN 250

to PN 400

PN 10 PN 16 PN 25 PN 160PN 10/40

10 804 833 852 879 950 -- -- -- --

PN 40 PN 64

- -- -- -- -- -- -- --

PN 100

257 257 284 311 348

PN 250 PN 320

A note on Kammpro gasket dimensions

Kammpro gaskets are an ideal upgrade for equipment applications where standard spiral wound gaskets, double jacketed designs, and corrugated metallic gaskets are commonly used.

Kammpro LP1 dimensions can be the same as Style W or Style 300/310 gaskets that are seated in large male/female, large tongue/groove, and small tongue/groove joints. Technically,

the dimensions that are speci ed for large spiral wound ASME B16.20 for ASME B16.47 Series A and B  anges can still apply for the Kammpro Gaskets per LP3/LP2 design.

Kammpro LP3/LP2 Tolerances per ASME B16.20 Specification:

• Core inside diameter for NPS ½ to 24 is +1/64”, - 0” (+0.4 mm, - 0 mm)

• Core outside diameter for NPS ½ to 24 is +0”, -1/64” (+0 mm, - 0.4 mm)

• Guide ring outside diameter for NPS ½ to 24 is ±1/32” (±0.8 mm)

Kammpro LP3/LP2 Tolerances per EN 1514-6 Specification:

• Core inside diameter for DN 10 through DN 1000 is +1/64”, - 0” (+0.4 mm, - 0 mm)

• Core outside diameter for DN 10 through DN 1000 is +0”, -1/64” (+0 mm, - 0.4 mm)

• Core inside diameter for DN 1000 and larger is +3/64”, -0” (+1.0 mm, - 0 mm)

• Core outside diameter for DN 1000 and larger is +0”, -3/64” (+0 mm, - 1.0mm)

• Guide ring outside diameter is ±1/32” (±0.8 mm)

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Lamons SpiraSeal® Product F amily

Spiral wound gaskets have become extremely popular due to the wide variety of available styles and sizes. Spiral wound gaskets can be fabricated of any metal

which is available in thin strip and which can be welded;

therefore, they can be used against virtually any corrosive medium dependent upon the choice of the

metal and ller. They can be used over the complete

temperature range from cryogenic to approximately 2000ºF (1093ºC). This type of gasket can be used in all pressures from vacuum to the standard 2500

pressure class ange ratings. Spiral wound gaskets

can also be manufactured with variable densities, i.e. relatively low density gaskets for vacuum service up to extremely high density gaskets having a seating stress of approximately 30,000 psi (207 MPa). The softer gaskets would require a seating stress in the range of 5,000 psi (34 MPa).

V ariable Density

Spiral wound gaskets are manufactured by alternately winding strips of metal and soft llers

on the outer edge of winding mandrels that determine the inside dimensions of the wound component. In the winding process, the alternating plies are maintained under pressure.

Varying the pressure during the winding operation and/or the thickness of the soft ller, the

density of the gasket can be controlled over a wide range. As a general rule, low winding

pressure and thick soft llers are used for low pressure applications. Thin llers and high

pressure loads are used for high pressure applications. This, of course, would account for the higher bolt loads that have to be applied to the gasket in high pressure applications. In addition to all these advantages of the spiral wound gasket, they are relatively low cost.

A vailable sizes and Thicknesses

Lamons spiral wound gaskets are available in thicknesses of 0.0625” (1.5 mm), 0.100” (2.5 mm), 0.125” (3 mm), 0.175” (4 mm), 0.250” (6.4 mm), and 0.285” (7 mm). The chart on page 47 indicates the size range that can normally be fabricated in the various thicknesses along

with the recommended compressed thickness of each and the maximum ange width.

Flange Surface Finish

Use of spiral wound gaskets gives the designer and the user a wider tolerance for ange surface nishes than other metallic gaskets. While they can be used against most commercially available ange surface nishes, experience has indicated that the appropriate ange surface nishes used with spiral wound gaskets are as follows:

• 125 to 250 AARH optimum

• 500 AARH maximum

Available SpiraSeal® Styles

Lamons spiral wound gaskets are available in a variety of styles to suit the particular  ange facing being utilized on the  anges.

Lamons Style W

Style W gaskets are SpiraSeal® windings only. No inner or outer ring is utilized. Used in a variety of different applications, they may be furnished in many different sizes and thicknesses.

Style W gaskets are made in standard sizes to  t:

A. Large tongue and groove joints, 1/2 to 24 NPS, standard pressures;

B. Small tongue and groove joints, 1/2 to 24 NPS, standard pressures; and,

C. Large male and female joints 1/4 to 24 NPS, standard pressures,

Lamons Style WR

Style WR gaskets consist of a spiral wound sealing component with a solid metal outer guide ring. The outer

guide ring serves to center the gasket properly in the  ange

joint, acts as an anti-blowout device, provides radial support for the spiral wound component, and acts as a compression gauge to prevent the spiral wound component from being over crushed. Normally the outer guide rings are furnished in mild steel, but can be supplied in other metals when required by operating conditions.

Lamons Style WRI

Style WRI is identical to style WR, with the addition of an inner ring. The inner ring also serves several functions. Primarily, it provides radial support for the gasket on the ID to help prevent the occurrences of buckling or imploding. The inner ring also serves as an additional compression limiter. Its ID is normally sized slightly larger than

the ID of the  ange bore, minimizing turbulence in process  ow. The inner rings are normally

supplied in the same material as the spiral wound component. Lamons normally manufactures standard Style WR and WRI spiral wound gaskets to ASME B16.20, designed to suit ASME B16.5 and ASME B16.47  anges.

Lamons Style WRI- LE

Style WRI-LE design is the optimum choice when gasket high density and low emissions are a must. The improved spiral wound design incorporates the typical essentials such as a carbon steel guide ring, along with a stainless steel inner ring.

Manufacturing procedures for the low emissions gasket precisely regulate the amount of

metal wire wraps per inch; this higher number of wraps helps create a more robust and dense

gasket, which in turn reduce emissions. Machinery settings are carefully regulated and set to higher pressure settings which generate higher tension on the winding to densify and extrude

the  ller to a minimum of 0.008” (0.2032 mm) above the winding metal surface. This extruded material creates a thin barrier between the winding surface and  ange sealing surface to help  ll minor  ange surface blemishes and inconsistencies. Flanges in the 150 to 2500 pressure class range will bene t from this leading edge design.

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Lamons Style WRI- LC

Style WRI-LC gaskets provide a seal at relatively lower seating stress. This means that our design requires less bolt load to seat, yet still has the recovery like a standard

spiral wound. The WRI-LC gasket is typical to Class 150 and 300 anges, where users have a concern with insufcient potential of pre-load. But, the density of the WRI-LC gasket can be

varied to meet virtually any requirement. Electronic controls on Lamons’ SpiraSeal machines assure high quality precision welding with equal spacing, the correct number of metal plies on the gasket inside periphery, proper ratio of metal to ller, proper number of metal plies on the outside and spot welds on the OD.

Lamons Style WRI-HTG

Style WRI-HTG gaskets combine the corrosion and oxidation resistance of mica with the “sealability” of

exible graphite. The mica material, in conjunction with

the metal spirals serves as a barrier between oxidizing process conditions and/or external air and the graphite. While Inconel® X-750 is commonly selected as the winding metal, any

alloy can be selected. The overall effective rating of the HTG conguration can be utilized in

temperatures of up to 1500°F (815°C). Higher temperatures can be realized given further consultation with Lamons Engineering Department.

Lamons Style WRI-LP

Designed for highly corrosive environments, Style WRI-LP is a Spiral wound gasket with a conventional outer guide ring and a “Kammpro” style LP1 inner ring. This dual sealing design engages the raised face completely from the OD to the bore. The

winding can be constructed with the required metal and soft ller specied by the user. The

“Kammpro” inner ring metal can be ordered in any alloy, such as Monel®, or in carbon steel. A carbon steel inner ring can be given a protective PTFE coating for increased chemical resistance. The Kammpro inner ring is faced typically with either 0.020” (0.5 mm) thick EPTFE or graphite.

The WRI-LP has seen wide-spread approvals for Hydrouoric Acid (HF) service, although this design has much further potential. Its main advantages are: no metal contact with the media; chemical resistance; re safe design; sizing to meet ASME B16.5; available in large diameter and for special anges.

Lamons Inhibitor

Lamons Inhibitor gasket provides corrosion resistance in the most extreme conditions. It combines a HTG

ller conguration with highest purity graphite, and

a Kammpro inner ring laminated with soft PTFE material. The design of the Inhibitor gasket utilizes the Kammpro inner ring to provide the primary sealing interface. The inner ring material and its covering layer are inert in terms of corrosion through contact with dissimilar

materials. This re safe design incorporates the sealing integrity of highest purity graphite

in conjunction with mica on the ID and OD, preventing the entrance of further corrosive conditions to the media.

Lamons Style WR-AB

MWC

Inward buckling of spiral wound gaskets is sometimes a concern in industry today. Work is ongoing through various industry committees to improve the standard in this regard. Some end users do not want to use inner rings due to cost or bore intrusion - to address this stance, Lamons offers Style WR-AB. By creating a space for expansion between the OD of the winding and the outer ring, the buckling along the inside could be reduced. This feature, combined with a reinforced inside circumference, help to further reduce the likelihood of inward buckling after installation.

Lamons Style WRI-H F

This gasket was developed for Hydro uoric (HF) acid

applications. It consists of a Monel® and PTFE winding with a carbon steel centering ring and a PTFE inner ring. The carbon steel outer ring can be coated with special HF acid detecting paint if desired.

The PTFE inner ring reduces corrosion to the  anges between the bore of the pipe and the

ID of the spiral wound sealing element.

Lamons Style WRI-RJ

The style WRI-RJ gasket is identical to a Style WRI in construction features but is specially sized to be

used as a replacement gasket for  anges machined to

accept oval or octagonal ring joint gaskets. The sealing component is located between the ID

of the groove machined in the  ange and the  ange bore. These are intended to be used as

replacement parts and are considered a maintenance item. In new construction, where spiral

wound gaskets are intended to be used, raised face  anges should be utilized.

Lamons Style MW, MWC & MWI

These gaskets are available in round, obround, and oval shapes and are used for standard manhole cover plates. When spiral wound manhole gaskets with a straight side are required, it is necessary that some curvature be allowable, given to the fact that spiral wound gaskets are wrapped under tension and therefore tend to buckle inward when the gaskets are removed from the winding mandrel. As a rule of thumb, the ratio of the long ID to the short ID should not exceed three to one.

Lamons Style H

Style H gaskets are for use on boiler hand hole and tubecap assemblies. They are available in round, square, rectangular, diamond, obround, oval and pear shapes. Lamons has tooling available for manufacturing most of the standard handhold and tubecap sizes of the various boiler manufacturers. However, these are also available in special sizes and shapes. (To order special gaskets, dimensional drawings or sample cover plates should be

provided in order to assure proper  t.)

MWI

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Lamons Style WP & WRP

Limitaon of Size & Thickness

*These limitaons are intended as a general guide only. Materials of construcon and ﬂange width of

These gaskets are similar to Style W and Style WR, with the addition of pass partitions for use with shell and tube heat exchangers. Partitions are normally supplied as doublejacketed construction, made of the same material as the spiral wound component. The partition strips can be soft

WRP

soldered, tack welded or silver soldered to the spiral wound component. The double-jacketed partition strips are normally slightly thinner than the spiral wound component in order to minimize the bolt loading required to properly seat the gasket.

Lamons Style L

The spiral wound components of Style L are identical to those of Style W and in addition have a wire loop welded to the outer

periphery of the gasket, sized so as to t over diametrically opposite

bolts, for proper centering of the spiral wound component on the gasket seating surface. Whenever possible, it is recommended that a Style WR gasket be used in lieu of a Style L gasket because of the obvious advantages of the outer solid metal guide

ring. The Style L is considerably more difcult to produce than the Style WR and therefore

more expensive.

Spiral Wound Gasket Dimensions for Pipe Flanges

Spiral wound gaskets must be sized to ensure the winding component is seated properly

between at surfaces. If it protrudes beyond a raised face or into a ange bore, mechanical

damage and leakage may occur.

Style W typically is applied in conned groove type anges, and it is sized by the following formulas:

Gasket is conned on the Inside Diameter (ID) and Outside Diameter (OD):

Gasket Inside Diameter (ID) = Groove Inside Diameter (ID) + 1/16” (1.5 mm) Gasket Outside Diameter (OD) = Groove Outside Diameter (OD) – 1/16” (1.5 mm)

Gasket is conned on the Outside Diameter (OD):

Gasket Inside Diameter (ID) = Bore + Minimum 1/4” (6.4 mm) Gasket Outside Diameter (OD) = Recess Outside Diameter (OD) - 1/16” (1.5 mm)

Limitations of Size & Thickness

Gasket Thickness

Inches mm Inches mm Inches mm Inches mm

0.063 1.59 9 229 0.375 9.53 0.050/0.0 55 1.27/1.39

0.100 2.54 12 305 0.500 12.70 0.075/0.080 1.91/2.03

0.125 3.18 40 1016 0.750 19.05 0 .090/0.100 2.29/2.54

0.175 4.45 75 1905 1.000 25.40 0 .125/0.135 3.18/3.43

0.250 6.35 160 4064 1.250 31.75 0.180/0.200 4.57/5.08

0.285 7.24 160 4064 1.250 31.75 0.200/0.220 5.08/5.59

Maximum Inside

Diameter (ID)*

Maximum Flange

Width*

Recommended Compressed

Thickness

gasket can aﬀect the limitaons listed.

Dimensions for Style W to Suit Large Male and Female Joints

WINDING OUTSIDE DIAMETER (OD)

Inside Diameter (ID)

Outside Diameter (OD)

Inside Diameter (ID)

Outside Diameter (OD)

WINDING INSIDE DIAMETER (ID)

Nominal Pipe Size

(NPS)

Inches mm Inches mm Inches mm Inches mm

Pressure Class

900, 1500150, 300, 400, 600

1/4 0.50 12.7 1.00 25.4 - - - 1/2 1.00 25.4 1.38 34.9 1.00 25.4 1.38 34.9

3/4 1.31 33.3 1.69 42.9 1.31 33.3 1.69 42.9 1 1.50 38.1 2.00 50.8 1.50 38.1 2.00 50.8 1 1/4 1.88 47.6 2.50 63.5 1.88 47.6 2.50 63.5 1 1/2 2.13 54.0 2.88 73.0 2.13 54.0 2.88 73.0 2 2.88 73.0 3.63 92.1 2.88 73.0 3.63 92.1 2 1/2 3.38 85.7 4.13 104.8 3.38 85.7 4.13 104.8 3 4.25 108.0 5.00 127.0 4.25 108.0 5.00 127.0 3 1/2 4.75 120.7 5.50 139.7 4.75 120.7 5.50 139.7 4 5.19 131.8 6.19 157.

2 5.19 131.8 6.19 157.2 4 1/2 5.69 144.5 6.75 171.5 - - - 5 6.31 160.3 7.31 185.7 6.31 160.3 7.31 185.7 6 7.50 190.5 8.50 215.9 7.50 190.5 8.50 215.9 8 9.38 238.1 10.63 269.9 9.38 238.1 10.63 269.9

10 11.25 285.8 12.75 323.9 11.25 285.8 12.75 323.9 12 13.50 342.9 15.00 381.0 13.50 342.9 15.00 381.0 14 14.75 374.7 16.25 412.8 14.75 374.7 16.25 412.8 16 17.00 431.8 18.50 469.9 17.00 431.8 18.50 469.9 18 19.25 489.0 21.00 533.4 19.25 489.0 21.00 533.4 20 21.00 533.4 23.00 584.2 21.00 533.

4 23.00 584.2

24 25.25 641.4 27.25 692.2 25.25 641.4 27.25 692.2

Nominal Pipe Size

(NPS)

Inside Diameter (ID) Outside Diameter (OD)

Inches mm Inches mm

Pressure Class

2500

1/4 - - - 1/2 0.81 20.6 1.38 34.9

3/4 1.06 27.0 1.69 42.9 1 1.25 31.8 2.00 50.8 1 1/4 1.63 41.3 2.50 63.5 1 1/2 1.88 47.6 2.88 73.0 2 2.38 60.3 3.63 92.1 2 1/2 3.00 76.2 4.13 104.8 3 3.75 95.3 5.00 127.0 3 1/2 - - - 4 4.75 120.7 6.19 157.2 4 1/2 - - - 5 5.75 146.1 7.31 185.7 6 6.75 171.5 8.50 215.9 8 8.75 222.3 10.63 269.9

10 10.75 273.1 12.75 323.9 12 13.00 330.2 15.00 381.0

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Dimensions for Style W

WINDING OUTSIDE DIAMETER (OD)

Pressure Class

WINDING INSIDE DIAMETER (ID)

For Large Tongue and

Groove Joints

Nominal

Pipe Size

(NPS)

1/2 1.00 25.4 1.38 34.9

3/4 1.31 33.3 1.69 42.9 1 1.50 38.1 2.00 50.8 1 1/4 1.88 47.6 2.50 63.5 1 1/2 2.13 54.0 2.88 73.0 2 2.88 73.0 3.63 92.1 2 1/2 3.38 85.7 4.13 104.8 3 4.25 108.0 5.00 127.0 3 1/2 4.75 120.7 5.50 139.7 4 5.19 131.8 6.19 157.2 5 6.31 160.3 7.31 185.7 6 7.50 190.5 8.50 215.9 8 9.38 238.1 10.63 269.9

10 11.25 285.8 12.75 323.9 12 13.50 342.9 15.00 381.0 14 14.75 374.7 16.25 412.8 16 16.75 425.5 18.50 469.9 18 19.25 489.0 21.00 533.4 20 21.00 533.4 23.00 58 24 25.25 641.4 27.25 692.2

* 2500# only thru 12" NPS

Inside Diameter

(ID)

Inches mm Inches mm

150-2500*

Outside Diameter

(OD)

4.2

For Small Tongue and

Groove Joints

Nominal Pipe Size

(NPS)

1/2 1.00 25.4 1.38 34.9

3/4 1.31 33.3 1.69 42.9 1 1.50 38.1 1.88 47.6 1 1/4 1.88 47.6 2.25 57.2 1 1/2 2.13 54.0 2.50 63.5 2 2.88 73.0 3.25 82.6 2 1/2 3.38 85.7 3.75 95.3 3 4.25 108.0 4.63 117.5 3 1/2 4.75 120.7 5.13 130.2 4 5.19 131.8 5.69 144.5 5 6.31 160.3 6.81 173.0 6 7.50 190.5 8.00 203.2 8 9.38 238.1 10.00 254.0

10 11.25 285.8 12.00 304.8 12 13.50 342.9 14.25 362.0 14 14.75 374.7 15.50 393.7 16 16.75 425.5 17.63 447.7 18 19.25 489.0 20.13 511.2 20 21.00 533.4 22.00 558 24 25.25 641.4 26.25 666.8

* 2500# only thru 12" NPS

Inside Diameter

(ID)

Inches mm Inches mm

150-2500*

Outside Diameter

(OD)

Style W Gasket Tolerances:

Gasket Diameter (Inches) Inside Diameter (ID) Outside Diameter (OD)

Up to 1" (+3/64", - 0.00") (+0.00", - 1/32")

1" to 24" (+1/32", - 0.00") (+0.00", - 1/32")

24" to 36" (+3/64", - 0.00") (+0.00", - 1/16")

36" to 60" (+1/16", - 0.00") (+0.00", - 1/16")

60" and above (+3/32", - 0.00") (+0.00", - 3/32")

Gasket Diameter (mm) Inside Diameter (ID) Outside Diameter (OD)

Up to 25.4 mm (+1.2 mm, - 0.00 mm) (+0.00 mm, - 0.8 mm)

25.4 mm to 610 mm (+0.8 mm, - 0.00 mm) (+0.00 mm, - 0.8 mm)

610 mm to 914 mm (+1.2 mm, - 0.00 mm) (+0.00 mm, - 1.6 mm)

914 mm to 1524 mm (+1.6 mm, - 0.00 mm) (+0.00 mm, - 1.6 mm)

1524 mm and above (+2.4 mm, - 0.00 mm) (+0.00 mm, - 2.4 mm)

Thickness +0.015” - 0.00” (+0.381 mm, - 0.00 mm) on special gaskets with:

a. Less than 1” (25.4 mm) ID greater that 26” (660.4 mm) ID.

b. PTFE llers

c. 1” (25.4 mm) or larger ange width. Thickness + 0.010 - 0.000” (+0.254 mm, - 0.00 mm) for most other sizes and materials.

Inches mm Inches mm Inches mm Inches mm

1/4* - - 0.50 12.7 0.88 22.2 1.75 44.5 1/2 0.56 14.2 0.75 19.1 1.25 31.8 2.13 54.0

3/4 0.81 20.6 1.00 25.4 1.56 39.7 2.63 66.7 1 1.06 26.9 1.25 31.8 1.88 47.6 2.88 73.0 1 1/4 1.50 38.1 1.88 47.6 2.38 60.3 3.25 82.6 1 1/2 1.75 44.5 2.13 54.0 2.75 69.9 3.75 95.3 2 2.19 55.6 2.75 69.9 3.38 85.7 4.38 111.1 2 1/2 2.62 66.5 3.25 82.6 3.88 98.4 5.13 130.2 3 3.19 81.0 4.00 101.6 4.75 120.7 5.88 149.2 3 1/2* 4.50 114.3 5.25 133.4 6.50 165.1 4 4.19 106.4 5.00 127.0 5.88 149.2 7.13 181.0 5 5.19 131.8 6.13 155.6 7.00 177.8 8.50 215.9 6 6.19 157.2 7.19 182.6 8.25 209.6 9.88 250.8 8 8.50 215.9 9.19 233.4 10.38 263.5 12.13 308.0

10 10.56 268.2 11.31 287.3 12.50 317.5 14.25 362.0 12 12.50 317.5 13.38 339.7 14.75 374.7 16.63 422.3

14 13.75 349.3 14.63 371.5 16.00 406.4 19.13 485.8

16 15.75 400.1 16.63 422.3 18.25 463.6 21.25 539.8

18 17.69 449.3 18.69 474.7 20.75 527.1 23.50 596.9

20 19.69 500.1 20.69 525.5 22.75 577.9 25.75 654.1 24 23.75 603.3 24.75 628.7 2

Class 600

Class 400

Class 1500

Inner Ring Inside

Class 900

Class 150

Class 300

Inner Ring Inside

Diameter (ID)

Nominal Pipe

Size (NPS)

Class 2500

Nominal Pipe

3.50 88.9

Dimensions for Style WRI per ASME B16.20

to Suit ASME B16.5 Flanges

INNER RING INSIDE DIAMETER (ID)

WINDING INSIDE DIAMETER (ID)

WINDING OUTSIDE DIAMETER (OD)

GUIDE RING OUTSIDE DIAMETER (OD)

Nominal Pipe

Size (NPS)

*Not Listed in ASME B16.20

Double Color Coding for SpiraSeal

304 SS

316L SS

317L SS

347 SS

321 SS

Monel

Inconel® 600/625

Nickel

Inner Ring Inside

Diameter (ID)

Inches mm Inches mm Inches mm Inches mm

1/4* - - 0.50 12.7 0.88 22.2 1.75 44.5 1/2 0.56 14.2 0.75 19.1 1.25 31.8 1.88 47.6

3/4 0.81 20.6 1.00 25.4 1.56 39.7 2.25 57.2 1 1.06 26.9 1.25 31.8 1.88 47.6 2.63 66.7 1 1/4 1.50 38.1 1.88 47.6 2.38 60.3 3.00 76.2 1 1/2 1.75 44.5 2.13 54.0 2.75 69.9 3.38 85.7 2 2.19 55.6 2.75 69.9 3.38 85.7 4.13 104.8 2 1/2 2.62 66.5 3.25 82.6 3.88 98.4 4.88 123.8 3 3.19 81.0 4.00 101.6 4.75 120.7 5.38 136.5 3 1/2* 3.50 88.9 4.50 114.3 5.25 133.4 6.38 161.9 4 4.19 106.4 5.00 127.0 5.88 149.2 6.88 174.6 5 5.19 131.8 6.13 155.6 7.00 177.8 7.75 196.9 6 6.19 157.2 7.19 182.6 8.25 209.6 8.75 222.3 8 8.50 215.9 9.19 233.4 10.38 263.5 11.

10 10.56 268.2 11.31 287.3 12.50 317.5 13.38 339.7 12 12.50 317.5 13.38 339.7 14.75 374.7 16.13 409.6 14 13.75 349.3 14.63 371.5 16.00 406.4 17.75 450.9 16 15.75 400.1 16.63 422.3 18.25 463.6 20.25 514.4 18 17.69 449.3 18.69 474.7 20.75 527.1 21.63 549.3 20 19.69 500.1 20.69 525.5 22.75 577.9 23.88 606.4 24 23.75 603.3 24.75 628.7 27.00 685.8 28.25 717.6

Winding Inside

Diameter (ID)

Winding Outside

Diameter (OD)

Gaskets per ASME B16.20

Metallic Windings

Yellow

Green

Maroon

Turquoise

Orange

Gold

Blue

Red

lncoloy 800/825

Titanium

Alloy 20

Carbon Steel

Hastelloy® “B”

Hastelloy® “C”

Phos. Bronze

White

Purple

Black

Silver

Brown

Beige

Copper

Flexible Graphite

Phyllosilicate (HTG)

Guide Ring Outside

Diameter (OD)

00 279.4

Non-Metallic Fillers

PTFE

Ceramic

White Stripe

Light Green Stripe

Gray Stripe

Light Blue Stripe

Sealing Global - Servicing Local

Inches mm Inches mm Inches mm Inches mm

1/4* - - 0.50 12.7 0.88 22.2 1.75 44.5 1/2 0.56 14.2 0.75 19.1 1.25 31.8 2.13 54.0

3/4 0.81 20.6 1.00 25.4 1.56 39.7 2.63 66.7 1 1.06 26.9 1.25 31.8 1.88 47.6 2.88 73.0 1 1/4 1.50 38.1 1.88 47.6 2.38 60.3 3 1 1/2 1.75 44.5 2.13 54.0 2.75 69.9 3.75 95.3 2 2.19 55.6 2.75 69.9 3.38 85.7 4.38 111.1 2 1/2 2.62 66.5 3.25 82.6 3.88 98.4 5.13 130.2 3 3.19 81.0 4.00 101.6 4.75 120.7 5.88 149.2 3 1/2 4.13 104.8 5.25 133.4 6.38 161.9 4 4.04 102.6 4.75 120.7 5.88 149.2 7.63 193.7 5 5.05 128.3 5.81 147.6 7.00 177.8 9.50 241.3 6 6.10 154.9 6.88 174.6 8.25 209.6 10.50 266.7 8 8.10 205.7 8.88 225.4 10.38 263.5 12.63 320.7

10.05 255.3 10.81 274.6 12.50 317.5 15.75 400.1

12.10 307.3 12.88 327.0 14.75 374.7 18.00 457.2 14 13.50 342.9 14.25 362.0 16.00 406.4 19.38 492.1 16 15.35 389.9 16.25 412.8 18.25 463.6 22.25 565.2 18 17.25 438.2 18.50 469.9 20.75 527.1 24.13 612.8 20 19.25 489.0 20.50 520.7 22.75 577.9 26.88 682.6 24 23.25 590.6 24.75 628.7 27.00 685.8 31.13 790.6

Inches mm Inches mm Inches mm Inches mm

1/4* - - - - - - - - 1/2 0.56 14.2 0.75 19.1 1.25 31.8 2.50 63.5 3/4 0.81

20.6 1.00 25.4 1.56 39.7 2.75 69.9 1 1.06 26.9 1.25 31.8 1.88 47.6 3.13 79.4 1 1/4 1.31 33.3 1.56 39.7 2.38 60.3 3.50 88.9 1 1/2 1.63 41.4 1.88 47.6 2.75 69.9 3.88 98.4 2 2.06 52.3 2.31 58.7 3.38 85.7 5.63 142.9 2 1/2 2.50 63.5 2.75 69.9 3.88 98.4 6.5 3 3.10 78.7 3.75 95.3 4.75 120.7 6.63 168.3 3 1/2* 4.13 104.8 5.25 133.4 7.50 190.5 4 4.04 102.6 4.75 120.7 5.88 149.2 8.13 206.4 5 5.05 128.3 5.81 147.6 6 6.10 154.9 6.88 174.6 8.25 209.6 11.38 288.9 8 7.75 196.9 8.75 222.3 10.13 257.2

10 9.69 246.1 10.88 276.2 12.25 311.2 17.13 435.0 12 11.50 292.1 12.75 323.9 14.50 368.3 19.63 498.5 14 12.63 320.8 14.00 355.6 15.75 400.1 20.50 520.7 16 14.75 374.7 16.25 412.8 18.00 457.2 22.63 574.7 18 16.75 425.5 18.25 463.6 20.50 520.7 25.13 638.2 20 19.00 482.6 20.50 520.7 22.50 571.5 27.50 698.5 24 23.25** 590.6 24.75 628.7 26.75 679.5 33.00 83

*Not Listed in ASME B16.20 ** Inner rings are required

Class 600

Nominal Pipe

Size (NPS)

Class 400

Inner Ring Inside

Diameter (ID)

Class 1500

Diameter (OD)

Class 900

Inner Ring Inside

Diameter (ID)

Nominal Pipe

Size (NPS)

Diameter (OD)

Class 300

Class 2500

3.50 88.9

Dimensions for Style WRI per ASME B16.20

to Suit ASME B16.5 Flanges

INNER RING INSIDE DIAMETER (ID)

WINDING INSIDE DIAMETER (ID)

WINDING OUTSIDE DIAMETER (OD)

GUIDE RING OUTSIDE DIAMETER (OD)

Nominal Pipe

Size (NPS)

1/4* - - 0.50 12.7 0.88 22.2 1.75 44.5 1/2 0.56 14.2 0.75 19.1 1.25 31.8 2.13 54.0

10 10.56 268.2 11.31 287.3 12.50 317.5 14.25 362.0 12 12.50 317.5 13.38 339.7 14.75 374.7 16.63 422.3 14 13.75 349.3 14.63 371.5 16.00 406.4 19.13 485.8 16 15.75 400.1 16.63 422.3 18.25 463.6 21.25 539.8 18 17.69 449.3 18.69 474.7 20.75 527.1 23.50 596.9 20 19.69 500.1 20.69 525.5 22.75 577.9 25.75 654.1 24 23.75 603.3 24.75 628.7 2

Inner Ring Inside

Diameter (ID)

Inches mm Inches mm Inches mm Inches mm

3.50 88.9

Winding Inside

Diameter (ID)

Winding Outside

Diameter (OD)

7.00 685.8 30.50 774.7

Guide Ring Outside

Diameter (OD)

Nominal Pipe

Size (NPS)

1/4* - - 0.50 12.7 0.88 22.2 1.75 44.5 1/2 0.56 14.2 0.75 19.1 1.25 31.8 2.13 54.0

3 1/2* 4.13 104.8 5.25 133.4 6.38 161.9 4 4.04 102.6 4.75 120.7 5.88 149.2 7.00 177.8 5 5.05 128.3 5.81 147.6 7.00 177.8 8.38 212.7 6 6.10 154.9 6.88 174.6 8.25 209.6 9.75 247.7 8 8.10 205.7 8.88 225.4 10.38 263.5 12.00 304.8

10 10.05 255.3 10.81 274.6 12.50 317.5 14.13 358.8 12 12.10 307.3 12.88 327.0 14.75 374.7 16.50 419.1 14 13.50 342.9 14.25 362.0 16.00 406.4 19.00 482.6 16 15.35 389.9 16.25 412.8 18.25 463.6 21.13 536.6 18 17.25 438.2 18.50 469.9 20.75 527.1 23.38 593.7 20 19.25 489.0 20.50 520.7 22.75 577.9 25.50 647.7 24 23.25 590.6 24.75 628.7 27.00 685.8 30.25 768.4

*Not Listed in ASME B16.20

Inner Ring Inside

Diameter (ID)

Inches mm Inches mm Inches mm Inches mm

3.50 88.9

Winding Inside

Diameter (ID)

Winding Outside

Diameter (OD)

Guide Ring Outside

Diameter (OD)

130.2

Dimensions for Style WRI per ASME B16.20

Inches mm Inches mm Inches mm Inches mm

1/4* - - - - - - - -

1/2 0.56 14.2 0.75 19.1 1.25 31.8 2.50 63.5

1/2 0.56 14.2 0.75 19.1 1.25 31.8 2.75 69.9

3/4 0.81 20.6 1.00 25.4 1.56 39.7 2.75 69.9

3/4 0.81 20.6 1.00 25.4 1.56 39.7 3.00 76.2

1 1.06 26.9 1.25 31.8 1.88 47.6 3.13 79.4

1 1.06 26.9 1.25 31.8 1.88 47.6 3.38 85.7

1 1/4 1.31 33.3 1.56 39.7 2.38 60.3 3.50 88.9

1 1/4 1.31 33.3 1.56 39.7 2.38 60.3 4.13 104.8

1 1/2 1.63 41.4 1.88 47.6 2.75 69.9 3.88 98.4

1 1/2 1.63 41.4 1.88

2 2.06 52.3 2.31 58.7 3.38 85.7 5.63 142.9

2 2.06 52.3 2.31 58.7 3.38 85.7 5.75 146.1

2 1/2 2.50 63.5 2.75 69.9 3.88 98.4 6.50 165.1

2 1/2 2.50 63.5 2.75 69.9 3.88 98.4 6.63 168.3

3 3.10 78.7 3.63 92.1 4.75 120.7 6.88 174.6

3 3.10 78.7 3.63 92.1 4.75 120.7 7.75 196.9

3 1/2* 4.13 104.8 5.25 133.

3 1/2* - - - - - -

4 3.85 97.8 4.63 117.5 5.88 149.2 8.25 209.6

4 3.85** 97.8** 4.63 117.5 5.88 149.2 9.25 235.0

5 4.90 124.5 5.63 142.9 7.00 177.8 10.00 254.0

5 4.90** 124.5** 5.63 142.9 7.00 177.8 11.00 279.4

6 5.80 147.3 6.75 171.5 8.25 209.6 11.13 282.6

6 5.80** 147.3** 6.75 171.5 8.25 209.6 12.50 317.5

8 7.75 196.9 8.50 215.9 10.13 257.2 13.88 352.4

8 7.75** 196.9** 8.50 215.9 10.13 257.2 15.25 387.4

10 9.69 246.1 10.50 266.7 12.25 311.2 17.13 435.0

10 9.69** 246.1** 10.63 269.9 12.25 311.2 18.75 476.3

12 11.50** 292.1** 12.75 323.9 14.50 368.3 20.50 520.7

12 11.50** 292.1** 12.50 317.5 14.50 368.3 21.63 549.3

14 12.

63** 320.8** 14.25 362.0 15.75 400.1 22.75 577.9

*Not Listed in ASME B16.20

16 14.50** 368.3** 16.00 406.4 18.00 457.2 25.25 641.4

** Inner rings are required

18 16.75** 425.5** 18.25 463.6 20.50 520.7 27.75 704.9 20 18.75** 476.3** 20.25 514.4 22.50 571.5 29.75 755.7

24 22.75** 577.9** 24.25 616.0 26.75 679.5 35.50 901.7

Class 600

Class 1500

Diameter (OD)

Class 900

Nominal Pipe

Size (NPS)

Inner Ring Inside

Diameter (ID)

Diameter (OD)

Inner Ring Inside

Diameter (ID)

Nominal Pipe

Size (NPS)

Class 2500

3.50 88.9

to Suit ASME B16.5 Flanges

INNER RING INSIDE DIAMETER (ID)

WINDING INSIDE DIAMETER (ID)

WINDING OUTSIDE DIAMETER (OD)

GUIDE RING OUTSIDE DIAMETER (OD)

Nominal Pipe

Size (NPS)

1/4* - - 0.50 12.7 0.88 22.2 1.75 44.5 1/2 0.56 14.2 0.75 19.1 1.25 31.8 2.13 54.0

6 6.10 154.9 6.88 174.6 8.25 209.6 10.50 266.7

8 8.10 205.7 8.88 225.4 10.38 263.5 12.63 320.7

10.05 255.3 10.81 274.6 12.50 317.5 15.75 400.1 12 14 13.50 342.9 14.25 362.0 16.00 406.4 19.38 492.1 16 15.35 389.9 16.25 412.8 18.25 463.6 22.25 565.2 18 17.25 438.2 18.50 469.9 20.75 527.1 24.13 612.8 20 19.25 489.0 20.50 520.7 22.75 577.9 26.88 682.6 24 23.25 590.6 24.75 628.7 27.00 685.8 31.13 790.6

Nominal Pipe

Size (NPS)

1/4* - - - - - - - 1/2 0.56 14.2 0.75 19.1 1.25 31.8 2.50 63.5

3/4 0.81 1 1.06 26.9 1.25 31.8 1.88 47.6 3.13 79.4 1 1/4 1.31 33.3 1.56 39.7 2.38 60.3 3.50 88.9 1 1/2 1.63 41.4 1.88 47.6 2.75 69.9 3.88 98.4 2 2.06 52.3 2.31 58.7 3.38 85.7 5.63 142.9 2 1/2 2.50 63.5 2.75 69.9 3.88 98.4 6.50 165.1 3 3.10 78.7 3.75 95.3 4.75 120.7 6.63 168.3 3 1/2* 4.13 104.8 5.25 133.4 7.50 190.5 4 4.04 102.6 4.75 120.7 5.88 149.2 8.13 206.4 5 5.05 128.3 5.81 147.6 7.00 177.8 9.75 247.7 6 6.10 154.9 6.88 174.6 8.25 209.6 11.38 288.9 8 7.75 196.9 8.75 222.3 10.13 257.2

*Not Listed in ASME B16.20 ** Inner rings are required

Inner Ring Inside

Diameter (ID)

Inches mm Inches mm Inches mm Inches mm

3.50 88.9

12.10 307.3 12.88 327.0 14.75 374.7 18.00 457.2

Inner Ring Inside

Inches mm Inches mm Inches mm Inches mm

20.6 1.00 25.4 1.56 39.7 2.75 69.9

3.50 88.9

Winding Inside

Diameter (ID)

Winding Inside

Diameter (ID)

Winding Outside

Diameter (OD)

Winding Outside

Guide Ring Outside

Diameter (OD)

.25 82.6

Guide Ring Outside

14.13 358.8

8.2

Sealing Global - Servicing Local

Class 1500

Class 2500

Dimensions for Style WRI per ASME B16.20

to Suit ASME B16.5 Flanges

INNER RING INSIDE DIAMETER (ID)

WINDING INSIDE DIAMETER (ID)

WINDING OUTSIDE DIAMETER (OD)

GUIDE RING OUTSIDE DIAMETER (OD)

Nominal Pipe

Size (NPS)

1/4* - - - - - - - 1/2 0.56 14.2 0.75 19.1 1.25 31.8 2.50 63.5

3/4 0.81 20.6 1.00 25.4 1.56 39.7 2.75 69.9 1 1.06 26.9 1.25 31.8 1.88 47.6 3.13 79.4 1 1/4 1.31 33.3 1.56 39.7 2.38 60.3 3.50 88.9 1 1/2 1.63 41.4 1.88 47.6 2.75 69.9 3.88 98.4 2 2.06 52.3 2.31 58.7 3.38 85.7 5.63 142.9 2 1/2 2.50 63.5 2.75 69.9 3.88 98.4 6.50 165.1 3 3.10 78.7 3.63 92.1 4.75 120.7 6.88 174.6

3 1/2* 4.13 104.8 5.25 133. 4 3.85 97.8 4.63 117.5 5.88 149.2 8.25 209.6 5 4.90 124.5 5.63 142.9 7.00 177.8 10.00 254.0 6 5.80 147.3 6.75 171.5 8.25 209.6 11.13 282.6 8 7.75 196.9 8.50 215.9 10.13 257.2 13.88 352.4

10 9.69 246.1 10.50 266.7 12.25 311.2 17.13 435.0 12 11.50** 292.1** 12.75 323.9 14.50 368.3 20.50 520.7 14 12. 16 14.50** 368.3** 16.00 406.4 18.00 457.2 25.25 641.4 18 16.75** 425.5** 18.25 463.6 20.50 520.7 27.75 704.9 20 18.75** 476.3** 20.25 514.4 22.50 571.5 29.75 755.7 24 22.75** 577.9** 24.25 616.0 26.75 679.5 35.50 901.7

Inner Ring Inside

Diameter (ID)

Inches mm Inches mm Inches mm Inches mm

3.50 88.9

63** 320.8** 14.25 362.0 15.75 400.1 22.75 577.9

Winding Inside

Diameter (ID)

Winding Outside

Diameter (OD)

Guide Ring Outside

Diameter (OD)

4 7.38 187.3

Nominal Pipe

Size (NPS)

1/4* - - - - - - - 1/2 0.56 14.2 0.75 19.1 1.25 31.8 2.75 69.9

3/4 0.81 20.6 1.00 25.4 1.56 39.7 3.00 76.2 1 1.06 26.9 1.25 31.8 1.88 47.6 3.38 85.7 1 1/4 1.31 33.3 1.56 39.7 2.38 60.3 4.13 104.8 1 1/2 1.63 41.4 1.88 2 2.06 52.3 2.31 58.7 3.38 85.7 5.75 146.1 2 1/2 2.50 63.5 2.75 69.9 3.88 98.4 6.63 168.3 3 3.10 78.7 3.63 92.1 4.75 120.7 7.75 196.9 3 1/2* - - - - - 4 3.85** 97.8** 4.63 117.5 5.88 149.2 9.25 235.0 5 4.90** 124.5** 5.63 142.9 7.00 177.8 11.00 279.4 6 5.80** 147.3** 6.75 171.5 8.25 209.6 12.50 317.5 8 7.75** 196.9** 8.50 215.9 10.13 257.2 15.25 387.4

10 9.69** 246.1** 10.63 269.9 12.25 311.2 18.75 476.3 12 11.50** 292.1** 12.50 317.5 14.50 368.3 21.63 549.3

*Not Listed in ASME B16.20

Inner Ring Inside

Diameter (ID)

Inches mm Inches mm Inches mm Inches mm

3.50 88.9

** Inner rings are required

Winding Inside

Diameter (ID)

47.6 2.75 69.9 4.63 117.5

Winding Outside

Diameter (OD)

Guide Ring Outside

Diameter (OD)

Spiral-Wound WR/WRI Tolerances

per ASME B16.20 Specifications

• The winding thickness: ±0.005” (0.13 mm) measured across the metallic por on of the winding not including the  ller.

• The winding outside diameter

o NPS ½ through NPS 8 is ±1/32” (±0.8 mm) o NPS 10 through NPS 24 is +1/16”, - 1/32” (+1.5 mm, -0.8 mm)

• The winding inside diameter

o NPS ½ through NPS 8 is ±1/64” (±0.4 mm ) o NPS 10 through NPS 24 is ±1/32” (±0.8 mm)

• The guide ring outside diameter: ±1/32” (±0.8 mm)

• The guide ring and inner thickness shall be from 0.117” (2.97 mm) to 0.131” (3.33 mm)

• The inner ring inside diameter:

o NPS ½ through 3 is ±1/32” (±0.8 mm) o NPS 4 through 24 is ±1/16” (±1.5 mm)

Table for Minimum Pipe Wall Thickness that is Suitable

for use with Standard Inner Rings per the ASME B16.20

Nominal

Pipe Size

(NPS)

1/2

3/4 Sched ul e 80 1 1 1/4 1 1/2 2 2 1/2 3 Sche dul e 40 3 1/2* 4 5 6 8

10 12 14 16 18 20 24

150 300 400 600 900 1500 2500

Sched ul e 10S Sched ul e 30

Pressure Class

Sched ul e 80

General Notes per ASME B16.20:

• The pipe wall schedules iden  ed represent the minimum pipe wall thickness suitable for use with inner rings for ASME B16.5  anges (reference ASME B 36.10M and B36.19M).

• Gasket with inner rings should be used only with socket welding, lapped, welding neck, and integral  anges.

* Not Listed in ASME B16.20

Sealing Global - Servicing Local

Table for Limitations on the Maximum ASME B16.5 Flange Bore

150 300 400 600 900 (1) 1500 (1) 2500 (1)

1/2 3/4

WN Flange onl y

1 No Fla nges 1 1/4 Use 600

SO Fl ange (3)

1 1/2

WN Flange (2)

2 2 1/2 3 4 5 6

8 10 12 14 16 18 No Fla nges 20 24

SO Fl ange (3)

Nominal Pipe Size

(NPS)

Pressure Class

WN Flange onl y (2)

SO Fl ange (3)

WN Flange with Schedule 10S

bore descri bed in ASME

B36.19M (Excl udes nozzle (4)

and SO Flanges) (5)

WN Flange, any bore

SO and WN

Flange

any bore

WN ﬂange with SW bore

(include nozzle (4)

but excl udes SO ﬂange)

WN ﬂange only (2)

WN Flange (2)

SO and WN Flange any bore

WN Flange with Schedule

0S bore described i n

ASME B36.19M

(Includes nozzl e (4)

but excludes SO Flanges)

WN ﬂange with schedule

80 bore (excludes nozzle

(4) and SO ﬂa nge) (5)

No Fla nges

Use 1500

for use with Standard ASME B16.20 Spiral Wound Gaskets

Abbreviaons:

SO = slip on and threaded WN = welding neck SW = standard wall

Notes per the ASME B16.20 specicaon:

1. Inner rings are required for class 900 NPS 24, class 1500 NPS 12 through 24, and class 2500 NPS 4 through NPS 12 per the ASME B16.20. These inner rings may extend into the pipe bore a maximum of 1/16” (1.5 mm) under the worst combinaon of maximum bore, eccentric installaon, and addive tolerances.

2. In these sizes, the gasket is suitable for a welding neck ange with a standard wall bore, if the gasket and the anges are assembled concentrically. This also applies to a nozzle. It is the user’s responsibility to determine if the gasket is sasfactory for a ange or any larger bore.

3. Gaskets in theses sizes are suitable for slip on anges only if the gaskets and anges are assembled concentrically

4. A nozzle is a long welding neck; the bore equals the ange NPS

5. A NPS 24 gasket is suitable for nozzles.

Dimensions for Style WR/WRI to Suit AWWA C207

Class E Slip-On and Welding Neck Flanges

INNER RING INSIDE DIAMETER (ID)

WINDING INSIDE DIAMETER (ID)

WINDING OUTSIDE DIAMETER (OD)

GUIDE RING OUTSIDE DIAMETER (OD)

Nominal Pipe

Size (NPS)

Inner

Ring Inside

Diameter (ID)

Inches mm Inches mm Inches mm Inches mm

Winding Inside

Diameter (ID)

Class 125

Winding Outside

Diameter (OD)

Guide Ring Outside

Diameter (OD)

22 22.00 558.8 22.75 577.9 24.00 609.6 26.00 660.4 26 26.00 660.4 26.50 673.1 27.75 704.9 30.50 774.7 28 28.00 711.2 28.50 723.9 27.75 704.9 32.75 831.9 30 30.00 762.0 30.50 774.7 31.75 806.5 34.75 882.7 32 32.00 812.8 32.50 825.5 33.88 860.4 37.00 939.8 34 34.00 863.6 34.50 876.3 35.88 911.2 39.00 990.6 36 36.00 914.4 36.50 927.1 38.13 968.4 41.25 1047.8

38 38.00 965.2 38.50 977.9 40.13 1019.2 43.75 1111.3 40 40.00 1016.0 40.50 1028.7 42.13

1070.0 45.75 1162.1 42 42.00 1066.8 42.50 1079.5 44.25 1124.0 48.00 1219.2 44 44.00 1117.6 44.50 1130.3 46.38 1177.9 50.25 1276.4 46 46.00 1168.4 46.50 1181.1 48.38 1228.7 52.25 1327.2 48 48.00 1219.2 48.50 1231.9 50.38 1279.5 54.50 1384.3 50 50.00 1270.0 50.50 1282.7 52.50 1333.5 56.50 1435.1 52 52.00 1320.8 52.50 1333.5 54.50 1384.3 58.75 1492.3

54 54.00 1371.6 54.50 1384.3 56.50 1435.1 61.00 1549.4 60 60.00 1524.0 60.50 1536.7 62.50 1587.5 67.50 1714.5

Nominal Pipe

Size (NPS)

Inner Ring Inside

Diameter (ID)

Inches mm Inches mm Inches mm Inches mm

Winding Inside

ameter (ID)

Class 175

Winding Outside

Diameter (OD)

Guide Ring Outside

Diameter (OD)

26 26.00 660.4 26.50 673.1 27.75 704.9 29.13 739.8 28 28.00 711.2 28.50 723.9 29.75 755.7 31.13 790.6 30 30.00 762.0 30.50 774.7 31.75 806.5 33.38 847.7 32 32.00 812.8 32.50 825.5 33.75 857.3 35.38 898.5 34 34.00 863.6 34.50 876.3 35.88 911.2 37.50 952.5 36 36.00 914.4 36.50 927.1 37.88 962.0 39.50 1003.3 38 38.00 965.2 38.50 977.9 39.88 1012.8 41.50 1054.1 40 40.00 1016.0 40.50 1028.7 42.00 1066.8 43.50 1104.9 42 42.00 1066.8 42.50 1079.5 4

4.00 1117.6 45.88 1165.2 44 44.00 1117.6 44.50 1130.3 46.00 1168.4 47.88 1216.0 46 46.00 1168.4 46.50 1181.1 48.00 1219.2 49.88 1266.8 48 48.00 1219.2 48.50 1231.9 50.13 1273.2 51.88 1317.6 50 50.00 1270.0 50.50 1282.7 52.25 1327.2 53.88 1368.4 52 52.00 1320.8 52.50 1333.5 54.38 1381.1 56.13 1425.6 54 54.00 1371.6 54.50 1384.3 56.38 1431.9 58.13 1476.4 60 60.00 1524.0 60.50 1536.7 62.50 1587.5 61.13 1552.6

Sealing Global - Servicing Local

Dimensions for Style WR/WRI to Suit AWWA C207

Inches mm Inches mm Inches mm Inches mm

Class E Slip-On and Welding Neck Flanges

INNER RING INSIDE DIAMETER (ID)

WINDING INSIDE DIAMETER (ID)

WINDING OUTSIDE DIAMETER (OD)

GUIDE RING OUTSIDE DIAMETER (OD)

Nominal Pipe

Size (NPS)

Inner Ring Inside

Diameter (ID)

Winding Inside

Diameter (ID)

Class 250

Winding Outside

Diameter (OD)

Guide Ring Outside

Diameter (OD)

26 26.00 660.4 26.50 673.1 27.75 704.9 32.75 831.9 28 28.00 711.2 28.50 723.9 29.75 755.7 35.25 895.4 30 30.00 762.0 30.50 774.7 31.75 806.5 37.50 952.5 32 32.00 812.8 32.50 825.5 33.88 860.4 39.75 1009.7 34 34.00 863.6 34.50 876.3 35.88 911.2 41.75 1060.5 36 36.00 914.4 36.50 927.1 38.13 968.4 44.00 1117.6 38 38.00 965.2 38.50 977.9 40.13 1019.2 46.00 1168.4 40 40.00 1016.0 40.50 1028.7 42.13 1070.0 48.25 1225.6 42 42.00 1066.8 42.50 1079.5 44.25 1124.0 50.75 1289.1 44 44.00 11

17.6 44.50 1130.3 46.38 1177.9 53.00 1346.2 46 46.00 1168.4 46.50 1181.1 48.38 1228.7 55.25 1403.4 48 48.00 1219.2 48.50 1231.9 50.38 1279.5 58.75 1492.3

Nominal Pipe

Size (NPS)

Inner Ring Inside

Diamete

r (ID)

Inches mm Inches mm Inches mm Inches mm

Winding Inside

Diameter (ID)

Class 350

Winding Outside

Diameter (OD)

Guide Ring Outside

Diameter (OD)

26 26.00 660.4 26.50 673.1 27.75 704.9 29.63 752.5 28 28.00 711.2 28.50 723.9 29.75 755.7 31.63 803.3 30 30.00 762.0 30.50 774.7 31.75 806.5 33.88 860.4 32 32.00 812.8 32.50 825.5 33.88 860.4 35.88 911.2 34 34.00 863.6 34.50 876.3 35.88 911.2 37.88 962.0

36 36.00 914.4 36.50 927.1 38.13 968.4 40.38 1025.5 38 38.00 965.2 38.50 977.9 40.13 1019.2 42.38 1076.3 40 40.00 1016.0 40.50 1028.7 42.13 1070.0 44.38 1127.1 42 42.00 1066.8 42.50 1079.5 4

4.25 1124.0 46.63 1184.3 44 44.00 1117.6 44.50 1130.3 46.38 1177.9 49.00 1244.6 46 46.00 1168.4 46.50 1181.1 48.38 1228.7 51.00 1295.4 48 48.00 1219.2 48.50 1231.9 50.38 1279.5 53.00 1346.2 52 52.00 1320.8 52.50 1333.5 54.25 1378.0 57.38 1457.3 54 54.00 1371.6 54.50 1384.3 56.50 1435.1 59.38 1508.1 60 60.00 1524.0 60.50 1536.7 62.50 1587.5 65.38 1660.5 66 66.00 1676.4 66.50 1689.1 68.50 1739.9 72.50 1841.5

Dimensions for Style WR/WRI per ASME B16.20 to Suit

Inches mm Inches mm Inches mm Inches mm

ASME B16.47 Series A or MSS-SP- 44 Flanges

INNER RING INSIDE DIAMETER (ID)

WINDING INSIDE DIAMETER (ID)

WINDING OUTSIDE DIAMETER (OD)

GUIDE RING OUTSIDE DIAMETER (OD)

Nominal Pipe

Size (NPS)

Inner Ring Inside

Diameter (ID)

Winding Inside

Diameter (ID)

Class 150

Winding Outside

Diameter (OD)

Guide Ring Outside

Diameter (OD)

22* - - 22.75 577.9 24.00 609.6 26.00 660.4

26 25.75 654.1 26.50 673.1 27.75 704.9 30.50 774.7 28 27.75 704.9 28.50 723.9 29.75 755.7 32.75 831.9 30 29.75 755.7 30.50 774.7 31.75 806.5 34.75 882.7 32 31.75 806.5 32.50 825.5 33.88 860.4 37.00 939.8 34 33.75 857.3 34.50 876.3 35.88 911.2 39.00 990.6 36 35.75 908.1 36.50 927.1 38.13 968.4 41.25 1047.8 38 37.75 958.9 38.50 977.9 40.13 1019.2 43.75 1111.3 40 39.75 1009.7 40.50 1028.7 42.13 1070.0 45.75 1162.1 42 41.75 1060.5 42.50 1079

.5 44.25 1124.0 48.00 1219.2 44 43.75 1111.3 44.50 1130.3 46.38 1177.9 50.25 1276.4 46 45.75 1162.1 46.50 1181.1 48.38 1228.7 52.25 1327.2 48 47.75 1212.9 48.50 1231.9 50.38 1279.5 54.50 1384.3 50 49.75 1263.7 50.50 1282.7 52.50 1333.5 56.50 1435.1 52 51.75 1314.5 52.50 1333.5 54.50 1384.3 58.75 1492.3 54 53.50 1358.9 54.50 1384.3 56.50 1435.1 61.00 1549.4 56 55.50 1409.7 56.50 1435.1 58.50 1485.9 63.25 1606.6 58 57.50 1460.5 58.50 1485.9 60.50 1536.7 65.50 1663.7

60 59.50 1

Nominal Pipe

Size (NPS)

Inner Ring Inside

Diameter (ID)

511.3 60.50 1536.7 62.50 1587.5 67.50 1714.5

Class 300

Winding Inside

Diameter (ID)

Winding Outside

Diameter (OD)

Guide Ring Outside

Diameter (OD)

22* - - 22.75 577.9 24.75 628.7 27.75 704.9

26 25.75 654.1 27.00 685.8 29.00 736.6 32.88 835.0 28 27.75 704.9 29.00 736.6 31.00 787.4 35.38 898.5 30 29.75 755.7 31.25 793.8 33.25 844.6 37.50 952.5 32 31.75 806.5 33.50 850.9 35.50 901.7 39.63 1006.5 34 33.75 857.3 35.50 901.7 37.50 952.5 41.63 1057.3 36 35.75 908.1 37.63 955.7 39.63 1006.5 44.00 1117.6 38 37.50 952.5 38.50 977.9 40.00 1016.0 41.50 1054.1 40 39.50 1003.3 40.25 1022.4 42.13 1070.0 43.88 1114.4 42 41.50 1054.1 42.25 1 44 43.50 1104.9 44.50 1130.3 46.50 1181.1 48.00 1219.2 46 45.38 1152.7 46.38 1177.9 48.38 1228.7 50.13 1273.2 48 47.63 1209.8 48.63 1235.1 50.63 1285.9 52.13 1324.0 50 49.00 1244.6 51.00 1295.4 53.00 1346.2 54.25 1378.0 52 52.00 1320.8 53.00 1346.2 55.00 1397.0 56.25 1428.8 54 53.25 1352.6 55.25 1403.4 57.25 1454.2 58.75 1492.3 56 55.25 1403.4 57.25 1454.2 59.25 1505.0 60.75 1543.1 58 57.00 1447.8 59.50 1511.3 61.50 1562.1 62.75 1593.9 60 60.

*Not li ste d in ASME B16.20

Sealing Global - Servicing Local

00 1524.0 61.50 1562.1 63.50 1612.9 64.75 1644.7

073.2 44.13 1120.8 45.88 1165.2

Sealing Global - Servicing Local

Dimensions for Style WR/WRI per ASME B16.20 to Suit

Inches Inches mm Inches mm Inches mm Inches mm

ASME B16.47 Series A or MSS-SP- 44 Flanges

INNER RING INSIDE DIAMETER (ID)

WINDING INSIDE DIAMETER (ID)

WINDING OUTSIDE DIAMETER (OD)

GUIDE RING OUTSIDE DIAMETER (OD)

Nominal

Pipe Size

(NPS)

22* - - 22.75 577.9 24.75 628.7 27.63 701.7

26 26.00 660.4 27.00 685.8 29.00 736.6 32.75 831.9 28 28.00 711.2 29.00 736.6 31.00 787.4 35.13 892.2 30 29.75 755.7 31.25 793.8 33.25 844.6 37.25 946.2 32 32.00 812.8 33.50 850.9 35.50 901.7 39.50 1003.3 34 34.00 863.6 35.50 901.7 37.50 952.5 41.50 1054.1 36 36.13 917.7 37.63 955.7 39.63 1006.5 44.00 1117.6 38 37.50 952.5 38.25 971.6 40.25 1022.4 42.25 1073.2 40 39.38 1000.3 40.38 1025.5 42.38 1076.3 44.38 1127.1 42 41.38 1051.1 42.38 1 44 43.50 1104.9 44.50 1130.3 46.50 1181.1 48.50 1231.9 46 46.00 1168.4 47.00 1193.8 49.00 1244.6 50.75 1289.1 48 47.50 1206.5 49.00 1244.6 52.00 1320.8 53.00 1346.2 50 49.50 1257.3 51.00 1295.4 53.00 1346.2 55.25 1403.4 52 51.50 1308.1 53.00 1346.2 55.00 1397.0 57.25 1454.2 54 53.25 1352.6 55.25 1403.4 57.25 1454.2 59.75 1517.7 56 55.25 1403.4 57.25 1454.2 59.25 1505.0 61.75 1568.5 58 57.25 1454.2 59.25 1505.0 61.25 1555.8 63.75 1619.3 60 59.

Nominal

Pipe Size

(NPS)

Inches Inches mm Inches mm Inches mm Inches mm

22* - - 22.75 577.9 24.75 628.7 28.88 733.4

26 25.50 647.7 27.00 685.8 29.00 736.6 34.13 866.8 28 27.50 698.5 29.00 736.6 31.00 787.4 36.00 914.4 30 29.75 755.7 31.25 793.8 33.25 844.6 38.25 971.6 32 32.00 812.8 33.50 850.9 35.50 901.7 40.25 1022.4 34 34.00 863.6 35.50 901.7 37.50 952.5 42.25 1073.2 36 36.13 917.7 37.63 955.7 39.63 1006.5 44.50 1130.3 38 37.50 952.5 39.00 990.6 41.00 1041.4 43.50 1104.9 40 39.75 1009.7 41.25 1047.8 43. 42 42.00 1066.8 43.50 1104.9 45.50 1155.7 48.00 1219.2 44 43.75 1111.3 45.75 1162.1 47.75 1212.9 50.00 1270.0 46 45.75 1162.1 47.75 1212.9 49.75 1263.7 52.25 1327.2 48 48.00 1219.2 50.00 1270.0 52.00 1320.8 54.75 1390.7 50 50.00 1270.0 52.00 1320.8 54.00 1371.6 57.00 1447.8 52 52.00 1320.8 54.00 1371.6 56.00 1422.4 59.00 1498.6 54 54.25 1378.0 56.25 1428.8 58.25 1479.6 61.25 1555.8 56 56.25 1428.8 58.25 1479.6 60.25 1530.4 63.50 1612.9 58 58.00 1473.2 60 60.25 1530.4 62.75 1593.9 64.75 1644.7 68.25 1733.6

*Not li ste d in ASME B16.20

Inner Ring Inside

Diameter (ID)

75 1517.7 61.75 1568.5 63.75 1619.3 66.25 1682.8

Inner Ring Inside

Diameter (ID)

Winding Inside

Diameter (ID)

Winding Inside

Diameter (ID)

60.50 1536.7 62.50 1587.5 65.50 1663.7

Class 400

Winding Outside

Diameter (OD)

076.3 44.38 1127.1 46.38 1177.9

Class 600

Winding Outside

Diameter (OD)

25 1098.6 45.50 1155.7

Guide Ring Outside

Diameter (OD)

Guide Ring Outside

Diameter (OD)

Dimensions for Style WR/WRI per ASME B16.20 to Suit

ASME B16.47 Series A or MSS-SP- 44 Flanges

INNER RING INSIDE DIAMETER (ID)

WINDING INSIDE DIAMETER (ID)

WINDING OUTSIDE DIAMETER (OD)

GUIDE RING OUTSIDE DIAMETER (OD)

Cla

Nominal Pipe

Size (NPS)

22* - - 24.25 616.0 27.00 685.8 33.00 838.2

26 26.00 660.4 27.00 685.8 29.00 736.6 34.75 882.7 28 28.00 711.2 29.00 736.6 31.00 787.4 37.25 946.2 30 30.25 768.4 31.25 793.8 33.25 844.6 39.75 1009.7 32 32.00 812.8 33.50 850.9 35.50 901.7 42.25 1073.2 34 34.00 863.6 35.50 901.7 37.50 952.5 44.75 1136.7 36 36.25 920.8 37.75 958.9 39.75 1009.7 47.25 1200.2 38 39.75 1009.7 40.75 1035.1 42.75 1085.9 47.25 1200.2 40 41.75 1060.5 43.25 1098.6 45.25 1 42 43.75 1111.3 45.25 1149.4 47.25 1200.2 51.25 1301.8 44 45.50 1155.7 47.50 1206.5 49.50 1257.3 53.88 1368.4 46 48.00 1219.2 50.00 1270.0 52.00 1320.8 56.50 1435.1 48 50.00 1270.0 52.00 1320.8 54.00 1371.6 58.50 1485.9

*Not listed in ASME B16.20 **In ne r rings a re requi red

Inner Ring Inside

Diameter (ID)**

Inches mm Inches mm Inches mm Inches mm

Winding Inside

Diameter (ID)

ss 900

Winding Outside

Diameter (OD)

Guide Ring Outside

Diameter (OD)

149.4 49.25 1251.0

Large Spiral Wound Gasket Tolerances per ASME B16.20

to be used with ASME B16.47 Series A Flanges

• The winding thickness is ±0.005” (±0.13 mm) measured across the metallic por on

of the gasket not including the  ller

• The winding inside diameter

o NPS 26 through NPS 34 is ±1/32” (±0.8 mm) o NPS 36 through NPS 60 is ± 3/64” (±1.3 mm)

• The winding outside diameter

o NPS 26 through 60 is ± 1/16” (1.5 mm)

• The guide ring outside diameter tolerance is ±1/32” (±0.8 mm)

• The guide ring and inner thickness shall be from 0.117”

(2.97 mm) to 0.131” (3.33 mm)

• The inner ring inside diameter is: ±1/8” (±3.0 mm)

• These inner rings are suitable for use with pipe walls 0.38” (9.53 mm) or thicker

Sealing Global - Servicing Local

Dimensions for Style WR/WRI per ASME B16.20 to Suit

Inches mm Inches mm Inches mm Inches mm

ASME B16.47 Series B or API-605 Flanges

INNER RING INSIDE DIAMETER (ID)

WINDING INSIDE DIAMETER (ID)

WINDING OUTSIDE DIAMETER (OD)

GUIDE RING OUTSIDE DIAMETER (OD)

Nominal Pipe

Size (NPS)

26 25.75 654.05 26.50 673.1 27.50 698.5 28.56 725.5 28 27.75 704.9 28.50 723.9 29.50 749.3 30.56 776.3 30 29.75 755.7 30.50 774.7 31.50 800.1 32.56 827.1 32 31.75 806.5 32.50 825.5 33.50 850.9 34.69 881.1 34 33.75 857.3 34.50 876.3 35.75 908.1 36.81 935.0 36 35.75 908.1 36.50 927.1 37.75 958.9 38.88 987.4 38 37.75 958.9 38.38 974.7 39.75 1009.7 41.13 1044.6 40 39.75 1009.7 40.25 1022.4 41.88 1063.6 43.13 1095.4 42 41.75 1060.5 42.50 1079.5 43.88 1114.4 45.13 1146.2 44 43.75 1111 46 45.75 1162.1 46.50 1181.1 48.19 1224.0 49.44 1255.7 48 47.75 1212.9 48.50 1231.9 50.00 1270.0 51.44 1306.5 50 49.75 1263.7 50.50 1282.7 52.19 1325.6 53.44 1357.3 52 51.75 1314.5 52.50 1333.5 54.19 1376.4 55.44 1408.1 54 53.75 1365.3 54.50 1384.3 56.00 1422.4 57.63 1463.7 56 56.00 1422.4 56.88 1444.6 58.19 1478.0 59.63 1514.5 58 58.19 1478.0 59.08 1500.6 60.19 1528.8 62.19 1579.6 60 60.44 1535.2 61.31 1557.3 62.44 1585.9 64.19 163

Nominal Pipe

Size (NPS)

26 25.75 654.05 26.50 673.1 28.00 711.2 30.38 771.5 28 27.75 704.9 28.50 723.9 30.00 762.0 32.50 825.5 30 29.75 755.7 30.50 774.7 32.00 812.8 34.88 885.8 32 31.75 806.5 32.50 825.5 34.00 863.6 37.00 939.8

34 33.75 857.3 34.50 876.3 36.00 914.4 39.13 993.8 36 35.75 908.1 36.50 927.1 38.00 965.2 41.25 1047.8 38 38.25 971.6 39.75 1009.7 41.25 1047.8 43.25 1098.6 40 40.25 1022.4 41.75 1060.5 43.25 1098.6 45.25 1149.4 42 42.75 1085.9 43.75 1111.

44 44.25 1124.0 45.75 1162.1 47.25 1200.2 49.25 1251.0

46 46.38 1178.1 47.88 1216.0 29.38 746.1 51.88 1317.6

48 45.50 1155.7 49.75 1263.7 51.63 1311.3 53.88 1368.4

50 49.88 1267.0 51.88 1317.6 53.38 1355.7 55.88 1419.2

52 51.88 1317.8 53.88 1368.4 55.38 1406.5 57.88 1470.0 54 53.75 1365.3 55.25 1403.4 57.25 1454.2 60.25 1530.4 56 56.25 1428.8 58.25 1479.6 60.00 1524.0 62.75 1593.9 58 58.44 1484.4 60.44 1535.1 61.94 1573.2 65.19 1655.8 60 61.31 155

Inner Ring Inside

Diameter (ID)

Inner Ring Inside

Diameter (ID)

Inches mm Inches mm Inches mm Inches mm

7.3 62.56 1589.1 64.19 1630.4 67.19 1706.6

Winding Inside

Diameter (ID)

.3 44.25 1124.0 45.88 1165.2 47.13 1197.0

Winding Inside

Diameter (ID)

Class 150

Winding Outside

Diameter (OD)

Class 300

Winding Outside

Diameter (OD)

3 45.25 1149.4 47.25 1200.2

Guide Ring Outside

Diameter (OD)

Guide Ring Outside

Diameter (OD)

0.4

Dimensions for Style WR/WRI per ASME B16.20 to Suit

Inches mm Inches mm Inches mm Inches mm

ASME B16.47 Series B or API-605 Flanges

INNER RING INSIDE DIAMETER (ID)

WINDING INSIDE DIAMETER (ID)

WINDING OUTSIDE DIAMETER (OD)

GUIDE RING OUTSIDE DIAMETER (OD)

Nominal Pipe

Size (NPS)

26 25.75 654.05 26.25 666.8 27.50 698.5 29.38 746.1 28 27.63 701.8 28.13 714.4 29.50 749.3 31.50 800.1 30 29.63 752.6 30.13 765.2 31.75 806.5 33.75 857.3 32 31.50 800.1 32.00 812.8 33.88 860.4 35.88 911.2 34 33.50 850.9 34.13 866.8 35.88 911.2 37.88 962.0 36 35.38 898.7 36.13 917.6 38.00 965.2 40.25 1022.4 38 37.50 952.5 38.25 971.6 40.25 1022.4 42.25 1073.2 40 39.38 1000.3 40.38 1025.5 42.38 1076.3 44.38 1127.1 42 41.38 1051.1 42.38 1076.3 44 43.50 1104.9 44.50 1130.3 46.50 1181.1 48.50 1231.9 46 46.00 1168.4 47.00 1193.8 49.00 1244.6 50.75 1289.1 48 47.50 1206.5 49.00 1244.6 51.00 1295.4 53.00 1346.2 50 49.50 1257.3 51.00 1295.4 53.00 1346.2 55.25 1403.4 52 51.50 1308.1 53.00 1346.2 55.00 1397.0 57.25 1454.2 54 53.25 1352.6 55.25 1403.4 57.25 1454.2 59.75 1517.7 56 55.25 1403.4 57.25 1454.2 59.25 1505.0 61.75 1568.5 58 57.25 1454.2 59.25 1505.0 61.25 1555.8 63.75 1619.3 60 59.75 151

Nominal Pipe

Size (NPS)

Inner Ring Inside

Diameter (ID)

Inches mm Inches mm Inches mm Inches mm

7.7 61.75 1568.5 63.75 1619.3 66.25 1682.8

Inner Ring Inside

Diameter (ID)

Winding Inside

Diameter (ID)

Winding Inside

Diameter (ID)

Class 400

Class 600

Winding Outside

Diameter (OD)

44.38 1127.1 46.38 1177.9

Winding Outside

Diameter (OD)

Guide Ring Outside

Diameter (OD)

Guide Ring Outside

Diameter (OD)

26 25.38 644.652 26.13 663.6 28.13 714.4 30.13 765.2 28 27.00 685.8 27.75 704.9 29.75 755.7 32.25 819.2 30 29.63 752.6 30.63 777.9 32.63 828.7 34.63 879.5 32 31.25 793.8 32.75 831.9 34.75 882.7 36.75 933.5 34 33.50 850.9 35.00 889.0 37.00 939.8 39.25 997.0 36 35.50 901.7 37.00 939.8 39.00 990.6 41.25 1047.8 38 37.50 952.5 39.00 990.6 41.00 1041.4 43.50 1104.9 40 39.75 1009.7 41.25 1047.8 43.25 1098.6 45.50 1155.7 42 42.00 1066.8 43.50 1104.9 45.50 1155.7 48.00 1219.2 44 43.75 11 46 45.75 1162.1 47.75 1212.9 49.75 1263.7 52.25 1327.2 48 48.00 1219.2 50.00 1270.0 52.00 1320.8 54.75 1390.7 50 50.00 1270.0 52.00 1320.8 54.00 1371.6 57.00 1447.8 52 52.00 1320.8 54.00 1371.6 56.00 1422.4 59.00 1498.6 54 54.25 1378.0 56.25 1428.8 58.25 1479.6 61.25 1555.8 56 56.25 1428.8 58.25 1479.6 60.25 1530.4 63.50 1612.9 58 58.00 1473.2 60.50 1536.7 62.50 1587.5 65.50 1663.7 60 60.25 1530.4 62.75 1593.9 64.75 1644.7 68.25 1

Sealing Global - Servicing Local

11.3 45.75 1162.1 47.75 1212.9 50.00 1270.0

733.6

Sealing Global - Servicing Local

Dimensions for Style WR/WRI per ASME B16.20 to Suit

ASME B16.47 Series B or API-605 Flanges

INNER RING INSIDE DIAMETER (ID)

WINDING INSIDE DIAMETER (ID)

WINDING OUTSIDE DIAMETER (OD)

GUIDE RING OUTSIDE DIAMETER (OD)

Nominal Pipe

Size (NPS)

26 26.25 666.75 27.25 692.2 29.50 749.3 33.00 838.2 28 28.25 717.6 29.25 743.0 31.50 800.1 35.50 901.7 30 30.75 781.1 31.75 806.5 33.75 857.3 37.75 958.9 32 33.00 838.2 34.00 863.6 36.00 914.4 40.00 1016.0 34 35.25 895.4 36.25 920.8 38.25 971.6 42.25 1073.2 36 36.25 920.8 37.25 946.2 39.25 997.0 44.25 1124.0 38 39.75 1009.7 40.75 1035.1 42.75 1085.9 47.25 1200.2 40 41.75 1060.5 43.25 1098.6 45.25 1149.4 49.25 1251.0 42 43.75 1111.3 45.25 11 44 45.50 1155.7 47.50 1206.5 49.50 1257.3 53.88 1368.4 46 48.00 1219.2 50.00 1270.0 52.00 1320.8 56.50 1435.1 48 50.00 1270.0 52.00 1320.8 54.00 1371.6 58.50 1485.9

* Inner rin gs a re required

Inner Ring Inside

Diameter (ID)

Inches mm Inches mm Inches mm Inches mm

Winding Inside

Diameter (ID)

Class 900

Winding Outside

Diameter (OD)

49.4 47.25 1200.2 51.25 1301.8

Guide Ring Outside

Diameter (OD)

Large Spiral Wound Gasket Tolerances Per ASME B16.20

to Be Used With ASME B16.47 Series B Flanges

• The winding thickness is ±0.005” (±0.13 mm) measured across the metallic por-

tion of the gasket, not including the ller

• The winding inside diameter

o NPS 26 through NPS 34 NPS is ±1/32” (±0.8 mm)

o NPS 36 through NPS 60 NPS is ± 3/64” (±1.3 mm)

• The winding outside diameter

o NPS 26 through 60 NPS is ± 1/16” (1.5 mm)

• The guide ring outside diameter tolerance is ±1/32” (±0.8 mm)

• The guide and inner ring thickness shall be from 0.117” (2.97 mm) to 0.131” (3.33 mm)

• The inner ring inside diameter is: ±1/8” (±3.0 mm)

• These inner rings are suitable for use with pipe walls 0.38” (9.53 mm) or thicker

Dimensions for Style WR/WRI to Suit

ASME/ANSI B16.5 and Slip-On Flanges

INNER RING INSIDE DIAMETER (ID)

WINDING INSIDE DIAMETER (ID)

WINDING OUTSIDE DIAMETER (OD)

GUIDE RING OUTSIDE DIAMETER (OD)

Nominal

Pipe Size

(NPS)

Inner Ring Inside

Diameter (ID)

Winding Inside

Diameter (ID)

Winding Outside

Diameter (OD)

Guide Ring Outside

Diameter (OD)

Inches mm Inches mm Inches mm Inches mm

1/4 - - 0.56 14.3 0.88 22.2 1.75 44.5 1/2 0.56 14.3 0.94 23.8 1.25 31.8 1.88 47.6

3/4 0.81 20.6 1.19 30.2 1.56 39.7 2.25 57.2 1 1.06 27.0 1.44 36.5 1.88 47.6 2.63 66.7 1 1/4 1.38 34.9 1.88 47.6 2.38 60.3 3.00 76.2 1 1/2 1.63 41.3 2.13 54.0 2.75 69.9 3.38 85.7

Class 300

Class 150

Nominal Pipe Size

(NPS)

Inner Ring Inside

Diameter (ID)

Winding Inside

Diameter (ID)

Winding Outside

Diameter (OD)

Guide Ring Outside

Diameter (OD)

Inches mm Inches mm Inches mm Inches mm

1/4 - - 0.56 14.3 0.88 22.2 1.75 44.5 1/2 0.56 14.3 0.94 23.8 1.25 31.8 2.13 54.0

3/4 0.81 20.6 1.19 30.2 1.56 39.7 2.63 66.7 1 1.06 27.0 1.44 36.5 1.88 47.6 2.88 73.0 1 1/4 1.38 34.9 1.88 47.6 2.38 60.3 3.25 82.6 1 1/2 1.63 41.3 2.13 54.0 2.75 69.9 3.75 95.3

Class 400

Nominal

Pipe Size

(NPS)

Inner Ring Inside

Diameter (ID)

Winding Inside

Diameter (ID)

Winding Outside

Diameter (OD)

Guide Ring Outside

Diameter (OD)

Inches mm Inches mm Inches mm Inches mm

1/4 - - 0.56 14.3 0.88 22.2 1.75 44.5 1/2 0.56 14.3 0.94 23.8 1.25 31.8 2.13 54.0

3/4 0.81 20.6 1.19 30.2 1.56 39.7 2.63 66.7 1 1.06 27.0 1.44 36.5 1.88 47.6 2.88 73.0 1 1/4 1.38 34.9 1.88 47.6 2.38 60.3 3.25 82.6 1 1/2 1.63 41.3 2.13 54.0 2.75 69.9 3.75 95.3

Nominal Pipe Size

(NPS)

1 1.06 27.0 1.44 36.5 1.88 47.6 2.88 73.0 1 1/4 1.38 34.9 1.88 47.6 2.38 60.3 3.25 82.6 1 1/2 1.63 41.3 2.13 54.0 2.75 69.9 3.75 95.3

Sealing Global - Servicing Local

Class 600

Inner Ring Inside

Diameter (ID)

Winding Inside

Diameter (ID)

Winding Outside

Diameter (OD)

Guide Ring Outside

Diameter (OD)

Inches mm Inches mm Inches mm Inches mm

1/4 - - 0.56 14.3 0.88 22.2 1.75 44.5 1/2 0.56 14.3 0.94 23.8 1.25 31.8 2.13 54.0 3/4 0.81 20.6 1.19 30.2 1.56 39.7 2.63 66.7

Sealing Global - Servicing Local

Dimensions for Style WR/WRI to Suit

ASME/ANSI B16.5 and Slip-On Flanges

INNER RING INSIDE DIAMETER (ID)

WINDING INSIDE DIAMETER (ID)

WINDING OUTSIDE DIAMETER (OD)

GUIDE RING OUTSIDE DIAMETER (OD)

Nominal

Pipe Size

(NPS)

Inner Ring Inside

Diameter (ID)

Winding Inside

Diameter (ID)

Winding Outside

Diameter (OD)

Guide Ring Outside

Diameter (OD)

Inches mm Inches mm Inches mm Inches mm

1/2 0.56 14.3 0.94 23.8 1.25 31.8 2.50 63.5

3/4 0.81 20.6 1.19 30.2 1.56 39.7 2.75 69.9 1 1.06 27.0 1.44 36.5 1.88 47.6 3.13 79.4 1 1/4 1.38 34.9 1.88 47.6 2.38 60.3 3.50 88.9 1 1/2 1.63 41.3 2.13 54.0 2.75 69.9 3.88 98.4

Class 1500

Class 900

Nominal

Pipe Size

(NPS)

Inner Ring Inside

Diameter (ID)

Winding Inside

Diameter (ID)

Winding Outside

Diameter (OD)

Guide Ring Outside

Diameter (OD)

Inches mm Inches mm Inches mm Inches mm

1/2 0.56 14.3 0.94 23.8 1.25 31.8 2.50 63.5

3/4 0.81 20.6 1.19 30.2 1.56 39.7 2.75 69.9 1 1.06 27.0 1.44 36.5 1.88 47.6 3.13 79.4 1 1/4 1.38 34.9 1.88 47.6 2.38 60.3 3.50 88.9 1 1/2 1.63 41.3 2.13 54.0 2.75 69.9 3.88 98.4

Standard spiral wound gasket dimensions are not compable with slip-on anges, threaded ange, or lap joint anges in certain sizes due to the larger bore on slip-on anges.

Dimensions for Style WR/WRI to Suit Type A and B

1.811

1.535

2.087

4.016

4.173

6.772

6.929

13.937

15.748

2.677

3.386

17.717

3.386

7.835

7.992

5.630

5.787

7.087

8.543

10.118

2.008

2.402

2.795

5.000

2.402

3.228

4.055

4.685

5.630

3.622

4.213

25.591

29.764

34.016

14.094

15.905

17.953

25.827

30.000

34.252

6.614

7.638

8.819

Flange Facings per EN 1514-2 (Inches)

INNER RING INSIDE DIAMETER (ID)

WINDING INSIDE DIAMETER (ID)

WINDING OUTSIDE DIAMETER (OD)

GUIDE RING OUTSIDE DIAMETER (OD)

Inner ring

Inside

Diameter

(ID)

Inches Inches

Winding

Inside

Diameter

(ID)

10 0.709 0.945

Winding Outside

Diameter (OD)

PN10, PN25,

PN40

Inches Inches

1.339 1.3 39 2.2051.811

Winding Outside

Diameter (OD

PN63, PN100,

PN160

)

PN10 PN25 PN40 PN63 PN100 PN160

Guide Ring Outside Diameter (OD)

Inches

15 0.906 1.142 20 1.102 1.339 25 1.378 1.614 32 1.693 1.929

2.402 -

3.228

40 1.969 2.205 50 2.402 2.756 4.449 65 3.031 3.386 5.394 80 3.543 3.898 5.827

4.528 4.6 85

5.591

6.063 100 4.528 5.000 6.378 6.850 125 5.512 5.984 7.559 8.268 150 6.575 7.047 8.543 9.724 200 8.504 8.976 10.709 11.181 11.417 1 2.165 250 10.512 10.984 12.874 13.386 13.858 1 4.331 15.394 15.276

9.764 9.9 21

11.929 12.087

12.756

300 12.520 12.992 14.842 15.748 16.417 1 6.693 18.031 18.031 350 14.173 14.803 17.205 17.992 18

.661 19.134 20.157 400 16.142 16.614 19.213 20.236 21.496 2 1.378 22.520 500 20.079 20.551 23.346 24.567 24.724 2 5.866 27.716 -

21.654

21.890 600 24.016 24.488 27.362 28.779 29.409 3 0.079 32.008 700 27.953 28.425 31.890 32.795 33.543 3 4.606 37.402 800 31.890 32.677 36.102 37.087 38.346 3 8.898 - 900 35.827 36.614 40.039 41.024 42.677 4 3.622 - -

1000 39.764 40.551 44.252 45.433 47.008 - - -

37.953

42.283

38.189

42.520

Sealing Global - Servicing Local

Dimensions for Style WR/WRI to Suit Type A and B

103

154

115

143

194

217

172

176

224

257

199

203

324

248

252

354

400

358

404

550

556

650

656

964

970

102

394653

39-53

106

119

516171

127

142

Flange Facings per EN 1514-2 (Millimeters)

INNER RING INSIDE DIAMETER (ID)

WINDING INSIDE DIAMETER (ID)

WINDING OUTSIDE DIAMETER (OD)

GUIDE RING OUTSIDE DIAMETER (OD)

Inner ring

mm mm mm

Inside

Diameter (ID)

Winding

Inside

Diameter (ID)

Winding Outside

Diameter (OD)

PN10, PN25,

PN40

Winding Outside

Diameter (OD)

PN63, PN100,

PN160

Guide Ring Outside Diameter (OD)

PN10 PN25 PN40 PN63 PN100 PN160

10 18 24 15 23 29 20 28 34

25 35 41 32 43 49 40 50 56 50 61 70 113

107

119 65 77 86 137 80 90 99 148

100 115 127 162 174

168 180143 147 125 140 152 192 210 150 167 179 217 247 200 216 228 272 284 290 309 250 267 279 327 340 352 364 391 388

303

307 300 318 330 377 400 417 424 458 458 350 360 376 437 457 474 486 512 400 410 422 488 514 546 543 572 -

450

456 500 510 522 593 624 628 657 704 600 610 622 695 731 747 764 813 700 710 722 810 833 852 879 950 800 810 830 917 942 974 988 - -

756 864

762

870 900 910 930 1017 1042 1084 1 108 - -

1000 1010 10

30 11 24 1154 1194 - - -

1074

1080

Dimensions for Style WR to Suit British Standard BS 10

GUIDE RING OUTSIDE DIAMETER (OD)

Welded Neck & Slip-On Flanges Table D and E (Millimeters)

WINDING INSIDE DIAMETER (ID)

WINDING OUTSIDE DIAMETER (OD)

Nominal

Pipe Size

(NPS)

1/2 26.2 37.3 54.0 54.0

3/4 31.8 42.9 60.3 60.3 1 39.7 52.4 69.9 69.9 1 1/4 47.6 60.3 74.6 74.6 1 1/2 54.0 66.7 85.8 85.8 2 66.7 79.4 98.5 98.5 2 1/2 82.6 98.5 111.2 111.2 3 96.9 112.8 130.2 130.2 3 1/2 109.6 125.5 149.3 149.3

4 123.9 139.7 161.9 161.9 4 1/2 136.6 152.4 174.6 174.6 5 149.2 165.1 193.6 193.6 6 174.6 190.5 219.0 215.9 7 200.0 219.0 244.5 241.3 8 225.4 244.5 276.2 273.0

9 250.8 269.9 308.0 304.8 10 276.3 295.3 336.6 336.6 11 301.6 320.7 362.0 362.0 12 327.0 349.

13 368.3 390.6 419.1 415.9 14 393.7 416.0 447.7 447.7 15 419.1 441.3 473.0 473.0 16 444.5 466.7 498.5 498.5 17 473.0 498.5 530.3 527.0 18 498.5 523.9 562.0 562.0 19 523.9 549.3 587.4 587.4

20 549.3 574.7 619.2 619.2 21 574.7 603.3 651.0 647.7 22 600.0 628.7 673.1 673.1 23 625.5 654.0 698.5 698.5 24 650.9 679.5 730.3 728.7

Winding Inside

Diameter (ID)

Winding Outside

Diameter (OD)

3 387.4 384.2

Guide Ring Outside Diameter (OD)

TABLE

Sealing Global - Servicing Local

Dimensions for Style WR to Suit British Standard BS 10 Welded

GUIDE RING OUTSIDE DIAMETER (OD)

Guide Ring Outside Diameter (OD)

Neck & Slip-On Flanges Table F, H, J, K, & R (Millimeters)

WINDING INSIDE DIAMETER (ID)

WINDING OUTSIDE DIAMETER (OD)

Nominal

Pipe Size

(NPS)

1/2 26.2 38.9 54.0 66.7 66.7 66.7 66.7

3/4 31.8 44.5 60.3 66.7 66.7 66.7 66.7 1 39.7 55.6 71.5 71.5 71.5 79.4 79.4 1 1/4 47.6 63.5 82.6 82.6 82.6 82.6 82.6 1 1/2 54.0 69.9 88.9 88.9 88.9 95.3 95.3 2 66.7 82.6 111.2 111.2 108.0 111.2 111.2 2 1/2 82.6 101.6 130.2 130.2 127.0 127.0 127.0 3 96.9 115.9 149.3 149.3 146.0 146.0 146.0 3 1/2 109.6 128.6 162.0 162.0 158.9 162.0 162.0 4 123.9 142.9 174.7 174.7 171.5 174.7 174.7 4 1/2 136.6 158.9 190.5 190.5 187.4 187.4 187.4 5 149.2 171.5 215.9 215. 6 174.6 196.9 241.3 241.3 238.2 238.2 238.2 7 200.0 225.4 273.0 273.0 269.9 266.7 266.7 8 225.4 250.9 304.8 304.8 301.7 292.1 298.5 9 250.8 276.3 333.4 333.4 330.2 330.2 330.2

10 279.4 304.8 358.8 358.8 355.6 355.6 362.0 11 304.8 330.2 384.2 384.2 381.0 384.2 403.3 12 330.2 358.7 416.0 416.0 412.8 403.3 428.7 13 362.0 390.6 444.5 444.5 441.4 451.0 463.6 14 387.4 415.9 470.0 470.0 466.8 476.3 495.3 15 412.8 441.4 495.3 495.3 492.2 508.0 520.7 16 444.5 476.3 527.0 5 17 469.9 504.9 558.8 558.8 555.7 565.2 577.9 18 495.3 530.3 581.0 581.0 577.9 619.2 638.2 19 523.9 562.0 612.3 612.3 609.6 - 20 549.3 587.4 644.6 644.6 641.4 673.1 692.2 21 574.7 619.2 670.0 670.0 666.8 - 22 600.0 644.5 695.4 695.4 692.2 730.3 755.7 23 625.5 670.0 723.9 723.9 720.8 - 24 651.0 695.4 749.3 749.3 746.1 - -

Winding Inside

Diameter (ID)

Winding Outside

Diameter (OD)

TABLE

9 212.8 212.8 212.8

27.0 523.9 533.4 552.5

TABLE

Dimensions for Style WR to Suit British Standard BS 10

GUIDE RING OUTSIDE DIAMETER (OD)

BS 10: 1931

BS 10: 1962

Welded Neck & Slip-On Flanges Table S (Millimeters)

WINDING INSIDE DIAMETER (ID)

WINDING OUTSIDE DIAMETER (OD)

Nominal Pipe Size

(NPS)

1/2

3/4

1 31.8 47.6 31.8 47.6 82.6

1 1/4 38.1 55.6 38.1 55.6 88.9

1 1/2 44.5 63.5 44.5 63.5 101.6

2 57.2 76.2 57.2 79.4 114.3

2 1/2 69.9 88.9 73.0 95.3 127.0

3 82.6 101.6 85.7 108.0 142.9

3 1/2 95.3 114.3 98.4 120.7 168.3

4 108.0 127.0 111.1 136.5 177.8

4 1/2 120.7 139.7 123.8 149.2 190.5

5 133.4 152.4 136.5 161.9 212.7

6 158.8 177.8 161.9 187.3 247.7

7 187.3 209.6 187.3 219.1 288.9

8 212.7 235.0 212.7 244.5 323.9

9 238.1 260.4 241

10 263.5 285.8 266.7 301.6 393.7

11 (12) 3/4 O/D Pi pe

12 (14) 3/4 O/D Pi pe

13 (15) 3/4 O/D Pi pe

14 (16) 3/4 O/D Pi pe 15 (17) 3/4 O/D Pi pe 16 (18) 3/4 O/D Pipe

Winding Inside

Diameter (ID)

19.1 31.8 19.1 31.8 69.9

25.4 39.7 25.4 39.7 69.9

288.9 317.5 292.1 327.0 435.0

314.3 346.1 320.7 355.6 469.9

339.7 371.5 346.1 384.2 501.7

365.1 400.1 371.5 409.6 539.8

390.5 428.6 400.1 438.2 581.0

415.9 454.0 425.5 466.7 616.0

Winding Outside

Diameter (OD)

Winding Inside

Diameter (ID)

.3 273.1 358.8

Winding Outside

Diameter (OD)

Guide Ring Outside

Diameter (OD)

Sealing Global - Servicing Local

Dimensions for Style WR/WRI per British BS 3381 to Suit

14.3 18.7 32.2 47.6

27.0 32.9 48.0 66.7

41.3 53.6 70.3 85.7

63.5 82.2 98.8 123.8

128.5 153.6 178.2 196.9

203.2 231.4 263.9 279.4

303.2 339.3 375.1 409.6

393.7 421.9 464.0 514.4

495.3 526.7 578.3 606.4

Class 300

BS 1560 and ASME/ANSI B16.5 Flanges (Millimeters)

INNER RING INSIDE DIAMETER (ID)

WINDING INSIDE DIAMETER (ID)

WINDING OUTSIDE DIAMETER (OD)

GUIDE RING OUTSIDE DIAMETER (OD)

Nominal Pipe

Size (NPS)

1/2

3/4 20.6 26.6 40.1 57.2 1 1 1/4 1 1/2 2 2 1/2 3 4 5 6 8

10 12 14 16 18 20 24

Inner Ring Inside

Diameter (ID)

34.9 45.6 60.7 76.2

52.4 69.5 86.1 104.8

77.8 101.2 121.1 136.5

103.2 126.6 149.6 174.6

154.0 180.6 210.0 222.3

254.0 286.9 317.9 339.7

342.9 371.1 406.8 450.9

444.5 475.9 527.5 549.3

596.9 631.4 686.2 717.6

Winding Inside

Diameter (ID)

Class 150

Winding Outside

Diameter (OD)

Guide Ring Outside

Diameter (OD)

Nominal Pipe

Size (NPS)

1/2

3/4 1 1 1/4 1 1/2 2 2 1/2 3 4 5 6 8

10 12 14 16 18 20 24

Inner Ring Inside

Diameter (ID)

14.3 54.0

20.6 66.7

27.0 73.0

34.9 82.6

41.3 95.3

52.4 111.1

63.5 130.2

77.8 149.2

103.2 181.0

128.5 215.9

154.0 250.8

203.2 308.0

254.0 362.0

303.2 422.3

342.9 485.8

393.7 539.8

444.5 596.9

495.3 654.1

596.9

Winding Inside

Diameter (ID)

18.7

25.0

31.4

44.1

50.4

66.3

79.0

94.9

120.3

147.2

174.2

225.0

280.6

333.0

364.7

415.5

469.5

520.3

625.1 774.7

Winding Outside

Diameter (OD)

32.2

40.1

48.0

60.7

70.3

86.1

98.8

121.1

149.6

178.2

210.0

263.9

317.9

375.1

406.8

464.0

527.5

578.3

686.2

Guide Ring Outside

Diameter (OD)

Dimensions for Style WR/WRI per British BS 3381 to Suit

20.6 25.0 40.1 66.7

34.9 44.1 60.7 82.6

52.4 66.3 86.1 111.1

77.8 94.9 121.1 149.2

128.5 147.2 178.2 241.3

154.0 174.2 210.0 266.7

203.2 225.0 263.9 320.7

254.0 280.6 317.9 400.1

303.2 333.0 375.1 457.2

342.9 364.7 406.8 492.1

393.7 415.5 464.0 565.2

444.5 469.5 527.5 612.8

495.3 520.3 578.3 682.6

596.9 625.1 686.2 790.6

Class 600

14.3 18.7 32.2 63.5

20.6 25.0 40.1 69.9

27.0 31.4 48.0 79.4

34.9 44.1 60.7 88.9

41.3 50.4 70.3 98.4

52.4 66.3 86.1 142.9

63.5 79.0 98.8 165.1

103.2 120.3 149.6 206.4

154.0 174.2 210.0 288.9

254.0 280.6 317.9 435.0

342.9 364.7 406.8 520.7

444.5 469.5 527.5 638.2

596.9 625.1 686.2 838.2

BS 1560 and ASME/ANSI B16.5 Flanges (Millimeters)

INNER RING INSIDE DIAMETER (ID)

WINDING INSIDE DIAMETER (ID)

WINDING OUTSIDE DIAMETER (OD)

GUIDE RING OUTSIDE DIAMETER (OD)

Nominal Pipe

Size (NPS)

1/2 3/4

1 1 1/4 1 1/2 2 2 1/2 3 4 5 6

8 10 12 14 16 18 20 24

Nominal Pipe

Size (NPS)

1/2

3/4 1 1 1/4 1 1/2 2 2 1/2 3 4 5 6 8

10 12 14 16 18 20 24

Inner Ring Inside

Diameter (ID)

Winding Inside

Diameter (ID)

Winding Outside

Diameter (OD)

14.3 18.7 32.2 54.0

27.0 31.4 48.0 73.0

41.3 50.4 70.3 95.3

63.5 79.0 98.8 130.2

103.2 120.3 149.6 193.7

Class 900

Inner Ring Inside

Diameter (ID)

Winding Inside

Diameter (ID)

Winding Outside

Diameter (OD)

77.8 94.9 121.1 168.3

128.5 147.2 178.2 247.7

203.2 225.0 263.9 358.8

303.2 333.0 375.1 498.5

393.7 415.5 464.0 574.7

495.3 520.3 578.3 698.5

Guide Ring Outside

Diameter (OD)

Guide Ring Outside

Diameter (OD)

Sealing Global - Servicing Local

Dimensions for Style WR/WRI per British BS 3381 to Suit

20.6 25.0 40.1 69.9

34.9 44.1 60.7 88.9

52.4 66.3 86.1 142.9

77.8 94.9 121.1 174.6

128.5 147.2 178.2 254.0

203.2 225.0 263.9 352.4

303.2 333.0 375.1 520.7

393.7 415.5 464.0 641.4

495.3 520.3 578.3 755.7

BS 1560 and ASME/ANSI B16.5 Flanges (Millimeters)

INNER RING INSIDE DIAMETER (ID)

WINDING INSIDE DIAMETER (ID)

WINDING OUTSIDE DIAMETER (OD)

GUIDE RING OUTSIDE DIAMETER (OD)

Nominal Pipe

Size (NPS)

1/2 14.3 18.7 32.2 63.5

3/4 1 1 1/4 1 1/2 2 2 1/2 3 4 5 6 8

10 12 14 16 18 20 24

Nominal Pipe

Size (NPS)

1/2

3/4 1 27.0 31.4 48.0 85.7 1 1/4 34.9 39.3 60.7 104.8 1 1/2 41.3 47.2 70.3 117.5 2 52.4 58.3 86.1 146.1 2 1/2 63.5 69.5 98.8 168.3 3 77.8 91.7 121.1 196.9 4 103.2 117.1 149.6 235.0 5 128.5 142.5 178.2 279.4 6 154.0 171.1 210.0 317.5 8 203.2 215.5 263.9 387.4

10 254.0 269.5 317.9 476.3 12 303.2 323.5 375.1 549.6

Inner Ring Inside

Diameter (ID)

27.0 31.4 48.0 79.4

41.3 50.4 70.3 98.4

63.5 79.0 98.8 165.1

103.2 120.3 149.6 209.6

154.0 174.2 210.0 282.6

254.0 280.6 317.9 435.0

342.9 364.7 406.8 577.9

444.5 469.5 527.5 704.9

596.9 625.1 686.2 901.7

Inner Ring Inside

Diameter (ID)

14.3 18.7 32.2 69.9

20.6 25.0 40.1 76.2

Winding Inside

Diameter (ID)

Winding Inside

Diameter (ID)

Class 1500

Winding Outside

Diameter (OD)

Class 2500

Winding Outside

Diameter (OD)

Guide Ring Outside

Diameter (OD)

Guide Ring Outside

Diameter (OD)

Dimensions for Style WR to Suit French Standard NF-M-87621

GUIDE RING OUTSIDE DIAMETER (OD)

(Millimeters)

WINDING INSIDE DIAMETER (ID)

WINDING OUTSIDE DIAMETER (OD)

Nominal Pipe Size

(NPS)

1/2

3/4 1 1 1/4 1 1/2 2 2 1/2 3 4 5 6 8

10 12

16 18 20 24

Class 150 Class 300

Winding

Inside

Diameter

(ID)

19 29 47 25 37 57 32 44 66 48 57 76 54 67 85 70 82 104

83 95 124 102 117 136 127 146 174 156 176 197

183 206 222 233 260 279 287 314 339 340 371 409 372 403 451

422 460 514 475 524 549 525 575 606

629

Winding

Outside

Diameter

(OD)

682 717 629 682 774 629 682 790

Guide Ring

Outside

Diameter

(OD)

Class 600

Winding

Inside

Diameter

(ID)

19 29 54 19 29 54 25 37 66 25 37 66 32 44 73 32 44 73 48 57 82 48 57 82 54 67 95 54 67 95 70 82 111 70 82 111

95 130 83 95 130 102 117 149 102 117 149 127 146 181 120 146 193 156 176 216 148 176 241 183 206 251 175 206 266 233 260 308 225 260 320

287 314 362 275 314 400 340 371 422 327 371 457 372 403 485 362 403 492

422 46 475 524 597 470 524 612 525 575 654 521 575 682

Winding

Outside

Diameter

(OD)

0 539 413 460 565

Guide Ring

Outside

Diameter

(OD)

Winding

Inside

Diameter

(ID)

Winding

Outside

Diameter

(OD)

Guide Ring

Outside

Diameter

(OD)

inal

Nom

Pipe Size

(NPS)

1/2

3/4 1 1 1/4 1 1/2 2 2 1/2 3 4 5 6 8

10 12 14 16 18 20 24

Class 900

Winding

Inside

Diameter

(ID)

19 29 63 19 29 63 19 29 70 25 37 70 25 37 70 25 37 76 32 44 79 32 44 79 32 44 86 40 57 89 40 57 89 40 57 105 48 67 98 48 67 98 48 67 117 59 82 143 59 82 143 59 82 146 70 95 165 70 95 165 70 95 168

95 117 168 92 117 174 92 117 197 120 146 206 118 146 209 118 146 235 148 176 247 143 176 254 143 176 279 175 206 289 171 206 282 171 206 317 225 260 359 216 260 352 216 260 387 275 3

327 371 498 324 371 520 324 371 549 362 403 520 362 403 578 - - -

413 460 574 413 460 641 - - 464 524 638 454 524 705 - - 514 575 698 514 575 756 - - 616 682 838 516 682 901 - - -

Winding

Outside

Diameter

(OD)

14 435 270 314 435 270 314 476

Guide Ring

Outside

Diameter

(OD)

Winding

Inside

Diameter

(ID)

Class 1500 Class 2500

Winding

Outside

Diameter

(OD)

Guide Ring

Outside

Diameter

(OD)

Winding

Inside

Diameter

(ID)

Winding

Outside

Diameter

(OD)

Guide Ring

Outside

Diameter

(OD)

Sealing Global - Servicing Local

Dimensions for Style WR to Suit Japanese (JIS) Flanges

GUIDE RING OUTSIDE DIAMETER (OD)

Pressure Rating 10 kgf/cm

WINDING INSIDE DIAMETER (ID)

WINDING OUTSIDE DIAMETER (OD)

10 0.945 24 1.457 37 2.04 7 52 15 1.102 28 1.614 41 2.24 4 57 20 1.339 34 1.850 47 2.44 1 62 25 1.575 40 2.087 53 2.91 3 74 32 2.008 51 2.638 67 3.30 7 84 40 2.244 57 2.874 73 3.50 4 89 50 2.717 69 3.504 89 4.09 4 104 65 3.425 87 4.213 107 4.882 124 80 3.858 98 4.646 118 5.276 134

90 4.331 110 5.118 130 5.669 144 100 4.843 123 5.630 143 6.260 159 125 5.827 148 6.811 173 7.480 190 150 6.850 174 7.835 199 8.661 220 175 7.913 201 8.898 226 9.646 245 200 8.937 227 9.921 252 6.693 170

25 9.921 252 10.906 277 11.4 17 290

2 250 10.945 278 12.205 310 13.071 332 300 12.953 329 14.213 361 14.843 377 350 14.409 366 15.984 406 16.614 422 400 16.417 417 17.992 457 19.055 484 450 18.425 468 20.394 518 21.220 539 500 20.394 518 22.362 568 23.386 594 550 22.402 569 24.370 619 25.591 650 600 24.409 620 26.378 670 27.559 700

Winding Inside

Diameter (ID)

Inches mm Inches mm Inches mm

Winding Outside

Diameter (OD)

Guide Ring Outside

Diameter (OD)

10.629 270

Dimensions for Style WR to Suit Japanese (JIS) Flanges

Pressure Rating 16-20 kgf/cm

INNER RING INSIDE DIAMETER (ID)

WINDING INSIDE DIAMETER (ID)

WINDING OUTSIDE DIAMETER (OD)

GUIDE RING OUTSIDE DIAMETER (OD)

Inner Ring Inside

Diameter (ID)

Winding Inside

Diameter (ID)

Winding Outside

Diameter (OD)

Guide Ring Outside

Diameter (OD)

Inches mm Inches mm Inches mm Inches mm

10 0.709 18 0.945 24 1.457 37 2.047 52 15 0.866 22 1.102 28 1.614 41 2.244 57 20 1.102 28 1.339 34 1.850 47 2.441 62 25 1.339 34 1.575 40 2.087 53 2.913 74 32 1.693 43 2.008 51 2.638 67 3.307 84 40 1.929 49 2.244 57 2.874 73 3.504 89 50 2.402 61 2.717 69 3.504 89 4.094 104 65 3.031 77 3.425 87 4.213 107 4.882 124 80 3.504 89 3.898 99 4.685 119 5.512 140

90 4.016 102 4.488 114 5.472 139 5.906 150 100 4.528 115 5.000 127 5.984 152 6.496 165 125 5.512 140 5.984 152 6.969 177 7.953 202 150 6.535 166 7.165 182 8.425 214 9.331 237 175 - - - - - - - 200 8.543 217 9.173 233 10.433 265 11.1 02 282 225 - - - - - - - 250 10.551 268 11.339 288 12.913 328 13.937 354 300 12.559 319 13.346 339 14.921 379 15.906 404 350 14.016 356 14.803 376 16.378 416 17.717 450 400 16.024 407 17.008 432 18.976 482 20.000 508 450 18.031 458 19.016 483 20.984 533 22.559 573 500 20.000 508 20.984 533 22.953 583 24.724 628 550 22.008 559 22.992 584 24.961 634 26.929 684 600 24.016 610 25.

000 635 26.969 685 28.898 734

Sealing Global - Servicing Local

Dimensions for Style WR to Suit Japanese (JIS) Flanges

Pressure Rating 30 kgf/cm

INNER RING INSIDE DIAMETER (ID)

WINDING INSIDE DIAMETER (ID)

WINDING OUTSIDE DIAMETER (OD)

GUIDE RING OUTSIDE DIAMETER (OD)

10 0.709 18 0.945 24 1.457 37 2.323 59 15 0.866 22 1.102 28 1.614 41 2.520 64 20 1.102 28 1.339 34 1.850 47 2.717 69 25 1.339 34 1.575 40 2.087 53 3.110 79 32 1.693 43 2.008 51 2.638 67 3.504 89 40 1.929 49 2.244 57 2.874 73 3.937 100 50 2.402 61 2.717 69 3.504 89 4.488 114 65 2.677 68 3.071 78 3.858 98 5.512 140 80 3.150 80 3.543 90 4.331 110 5.906 150

90 3.622 92 4.016 102 5.000 127 6.378 162 100 4.094 104 4.567 116 5.551 141 6.772 172 125 5.039 128 5.512 140 6.49 150 6.024 153 6.496 165 7.756 197 9.803 249 200 7.953 202 8.583 218 9.843 250 11.575 294 250 9.882 251 10.669 271 12.244 311 14.173 360 300 11.811 300 12.598 320 14.173 360 16.457 418 350 13.228 336 14.016 356 15.591 396 18.228 463 400 15.079 383 15.866 403 17.835 453 20.630 524

Inner Ring Inside

Diameter (ID)

Inches mm Inches mm Inches mm Inches mm

Winding Inside

Diameter (ID)

Winding Outside

Diameter (OD)

6 165 8.150 207

Guide Ring Outside

Diameter (OD)

Dimensions for Style WR to Suit Japanese (JIS) Flanges

Pressure Rating 40 kgf/cm

10 0.591 15 0.827 21 1.339 34 2.323 59 15 0.709 18 0.945 24 1.457 37 2.520 64 20 0.906 23 1.142 29 1.654 42 2.717 69 25 1.142 29 1.378 35 1.890 48 3.110 79 32 1.496 38 1.732 44 2.362 60 3.504 89 40 1.693 43 2.008 51 2.638 67 3.937 100 50 2.165 55 2.480 63 3.110 79 4.488 114 65 2.677 68 3.071 78 3.858 98 5.512 140 80 3.150 80 3.543 90 4.331 110 5.906 150 90 3.622 92 4.016 102 5.000 127 6.378 162

100 4.094 104 4.567 116 5.551 141 7.165 182

125 5.039 128 5.512 140 6.49

150 6.024 153 6.496 165 7.756 197 10.433 265 200 7.953 202 8.583 218 9.843 250 12.402 315

250 9.882 251 10.669 271 12.244 311 14.882 378

300 11.811 300 12.598 320 14.173 360 17.087 434

350 13.228 336 14.016 356 15.591 396 18.858 479

400 15.079 383 15.866 403 17.835 453 20.906 531

Inner Ring Inside

Diameter (ID)

Inches mm Inches mm Inches mm Inches mm

Winding Inside

Diameter (ID)

Winding Outside

Diameter (OD)

6 165 8.819 224

Guide Ring Outside

Diameter (OD)

Dimensions for Style WR to Suit Japanese (JIS) Flanges

Pressure Rating 63 kgf/cm

INNER RING INSIDE DIAMETER (ID)

WINDING INSIDE DIAMETER (ID)

WINDING OUTSIDE DIAMETER (OD)

GUIDE RING OUTSIDE DIAMETER (OD)

Inner Ring Inside

Diameter (ID)

Winding Inside

Diameter (ID)

Winding Outside

Diameter (OD)

Guide Ring Outside

Diameter (OD)

Inches mm Inches mm Inches mm Inches mm

10 0.591 15 0.827 21 1.339 34 2.520 64 15 0.709 18 0.945 24 1.457 37 2.717 69 20 0.906 23 1.142 29 1.654 42 2.953 75 25 1.142 29 1.378 35 1.890 48 3.150 80 32 1.496 38 1.732 44 2.362 60 3.543 90 40 1.693 43 2.008 51 2.638 67 4.213 107 50 2.165 55 2.480 63 3.110 79 4.921 125 65 2.677 68 3.071 78 3.858 98 5.984 152 80 3.150 80 3.543 90 4.331 110 6.378 162

90 3.622 92 4.016 102 5.000 127 7.047 179 100 4.094 104 4.567 116 5.551 141 7.638 194 125 5.039 128 5.512 140 6.496 165 9.252 235 150 6.024 153 6.496 165 7.756 197 10.827 275 200 7.953 202 8.583 218 9.843 250 12.913 328 250 9.882 251 10.669 271 12.244 311 15.512 394 300 11.811 300 12.598 320 14.173 360 17.559 446 350 13.228 336 14.016 356 15.591 396 19.213 488 400 15.079 383 15.866 403 17.835 453 21.457 545

Sealing Global - Servicing Local

Lamons Gasket & Fastener User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual