Burkert 3239 User Manual [en, de, fr]

Type 3232, 3233, 3233 K, 3234, 3235, 3239

Manually operated diaphragm valves, Diameter DN 8 - DN 100 Handbetätigte Membranventile, Nennweiten DN 8 - DN 100 Vannes à membrane, commandé manuelle, Piston section nominale DN 8 - DN 100

Operating Instructions

Bedienungsanleitung Manuel d‘utilisation

We reserve the right to make technical changes without notice. Technische Änderungen vorbehalten. Sous réserve de modifications techniques.

Operating Instructions 1402/04_EU-ML_00809435 / Original DE

Type 3232, 3233, 3233 K, 3234,

3235, 3239

Contents

1 OPERATING INSTRUCTIONS ................................................................4

1.1 Symbols .......................................................................................4

1.2 Definition of the Term “Device”............................................... 4

2 AUTHORIZED USE ......................................................................................5

2.1 Restrictions .................................................................................5

3 BASIC SAFETY INSTRUCTIONS ..........................................................5

4 GENERAL INFORMATION ........................................................................7

4.1 Contact Addresses ...................................................................7

4.2 Warranty ......................................................................................7

4.3 Information on the Internet ......................................................7

5 SYSTEM DESCRIPTION ............................................................................7

5.1 General description ..................................................................7

5.2 Intended application area ........................................................ 7

5.3 Conformity ................................................................................... 7

5.4 Standards .................................................................................... 7

6 TECHNICAL DATA ........................................................................................8

6.1 Description of the type label ...................................................8

6.2 Labeling of the forged body .................................................... 8

6.3 Operating conditions ................................................................ 8

6.4 General technical data ...........................................................11

7 STRUCTURE AND FUNCTION............................................................12

7.1 Structure ....................................................................................12

7.2 Type description ......................................................................12

7.3 Function .....................................................................................13

8 INSTALLATION ............................................................................................ 13

8.1 Safety instructions ...................................................................13

8.2 Before installation ....................................................................14

8.3 Installation .................................................................................16

9 MAINTENANCE, CLEANING ................................................................18

9.1 Safety instructions ...................................................................18

9.2 Maintenance work ...................................................................18

10 REPAIRS.........................................................................................................19

10.1 Safety instructions ...................................................................19

10.2 Replacing the diaphragm ......................................................20

11 SPARE PARTS, ACCESSORIES ........................................................22

11.1 Order table ................................................................................22

11.2 Handwheel locking device option .......................................24

12 PACKAGING, STORAGE, DISPOSAL ..............................................24

english

Type 3232, 3233, 3233 K, 3234,

3235, 3239

Operating Instructions

1 OPERATING INSTRUCTIONS

The operating instructions describe the entire life cycle of the device. Keep these instructions in a location which is easily accessible to every user and make these instructions available to every new owner of the device.

The operating instructions contain important safety information!

Failure to observe these instructions may result in hazardous situations.

▶ The operating instructions must be read and understood.

1.1 Symbols

DANGER!

Warns of an immediate danger!

▶ Failure to observe the warning may result in a fatal or serious

injury.

WARNING!

Warns of a potentially dangerous situation!

▶ Failure to observe the warning may result in serious injuries or

death.

CAUTION!

Warns of a possible danger!

▶ Failure to observe this warning may result in a medium or minor

injury.

NOTE!

Warns of damage to property!

▶ Failure to observe the warning may result in damage to the

device or the equipment.

Indicates important additional information, tips and recommendations.

Refers to information in these operating instructions or in other documentation.

→ designates a procedure which you must carry out.

1.2 Definition of the Term “Device”

In these instructions, the term “device” always refers to the Type 3232, 3233, 3233 K, 3234, 3235 and 3239.

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Type 3232, 3233, 3233 K, 3234,

3235, 3239

Authorized use

2 AUTHORIZED USE

Non-authorized use of the devices may be dangerous to people, nearby equipment and the environment.

▶ The diaphragm valves of Types 3232, 3233, 3233 K, 3234, 3235

and 3239 are designed for the control of contaminated, ultra-pure or sterile media, as well as for abrasive or aggressive media (also with higher viscosity).

▶ The devices may be used only for media which do not attack

the body and seal materials (see type label). Information on the resistance of materials to the media is available from your Bürkert sales office or on the Internet at: www.burkert.com

▶ During use observe the authorized data, the operating condi-

tions and conditions of use specified in the contract documents and operating instructions. These are described in the chapters „System description“ and „Technical data“.

▶ The device may be used only in conjunction with third-party devices

and components recommended and authorized by Bürkert.

▶ Correct transportation, correct storage and installation and care-

ful use and maintenance are essential for reliable and faultless operation.

▶ When closing the valve, tighten it hand-tight only. Overtighten-

ing may prematurely damage the diaphragm.

▶ Use the device only as intended.

2.1 Restrictions

If exporting the system/device, observe any existing restrictions.

3 BASIC SAFETY

INSTRUCTIONS

These safety instructions do not make allowance for any

• Contingencies and events which may arise during the installation, operation and maintenance of the devices.

• Local safety regulations – the operator is responsible for observing these regulations, also with reference to the installation personnel.

The diaphragm valves Types 3232, 3233, 3233 K, 3234, 3235 and 3239 were developed with due consideration given to the accepted safety rules and are state-of-the-art. Nevertheless, dangerous situations may occur.

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DANGER!

Type 3232, 3233, 3233 K, 3234,

3235, 3239

Authorized use

Danger – high pressure!

▶ Before loosening the lines and valves, turn off the pressure and

vent the lines.

Risk of electric shock!

▶ Before reaching into the device or the equipment, switch off the

power supply and secure to prevent reactivation!

▶ Observe applicable accident prevention and safety regulations

for electrical equipment!

WARNING!

Danger of bursting from overpressure!

▶ Observe the specifications on the type label for max. control

and medium pressure.

▶ Observe permitted medium temperature.

CAUTION!

Risk of burns/risk of fire if used continuously through hot device surface!

▶ Keep the device away from highly flammable substances and

media and do not touch with bare hands.

General hazardous situations.

To prevent injury, ensure that:

• The system cannot be activated unintentionally.

• Do not put any loads on the body (e.g. by placing objects on it or standing on it).

• Do not make any external modifications to the device body. Do not paint the body parts or screws.

• Installation and repair work may be carried out by authorized technicians only and with the appropriate tools.

• After an interruption in the power supply or pneumatic supply, ensure that the process is restarted in a defined or controlled manner.

• The device may be operated only when in perfect condition and in consideration of the operating instructions.

• The general rules of technology apply to application planning and operation of the device.

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Type 3232, 3233, 3233 K, 3234,

3235, 3239

General information

4 GENERAL INFORMATION

4.1 Contact Addresses

Germany

Bürkert Fluid Control Systems Sales Center Christian-Bürkert-Str. 13-17 D-74653 Ingelfingen Tel. + 49 (0) 7940 - 10 91 111 Fax + 49 (0) 7940 - 10 91 448 E-mail: info@de.buerkert.com

International

Contact addresses can be found on the final pages of the printed operating instructions.

And also on the Internet at: www.burkert.com

4.2 Warranty

The warranty is only valid if the device is used as intended in accordance with the specified application conditions.

4.3 Information on the Internet

The operating instructions and data sheets for Types 3232, 3233, 3233 K, 3234, 3235, 3239 can be found on the Internet at:

www.burkert.com

5 SYSTEM DESCRIPTION

5.1 General description

Type 3232, 3233, 3233 K, 3234, 3235 and 3239 is a manually controlled diaphragm valve with diaphragm seal. The valve is self-draining in appropriate installation position.

5.2 Intended application area

The diaphragm valve of Type 3232 is designed for the control of contaminated and aggressive media. The valves of Type 3233, 3233 K, 3234, 3235 and 3239 can be used even for ultra-pure or sterile media with a higher viscosity.

The valves may only control media which do not attack the body and seal materials (see type label). Information on the resistance of materials to the media is available from your Bürkert sales office.

5.3 Conformity

Type 3232, 3233, 3233 K, 3234, 3235, 3239 conforms with the EC Directives according to the EC Declaration of Conformity.

5.4 Standards

The applied standards, which verify conformity with the EC Directives, can be found on the EC-Type Examination Certificate and / or the EC Declaration of Conformity.

english

3233 25,0 EPDM VS

Made in Germany

00442376

W36LP

TG44 Pmed

10bar

Type 3232, 3233, 3233 K, 3234,

3235, 3239

Technical data

6 TECHNICAL DATA

6.1 Description of the type label

Body material

Seal material

(Diaphragm size)

Identification number of the

Production date

(encoded)

Line connector,

Max. medium pressure

Fig. 1: Location and description of the type label

Orifice

Type

device

6.2 Labeling of the forged body

Batch number/ manufacturer sign

Production number/

Company logo

Material

Pressure stage

Connection orifice and pipe dimensions

order number (F-part)

Serial number Surface quality

code Customer-specific

text (optional)

Fig. 2: Labeling of the forged body

6.3 Operating conditions

WARNING!

Danger of bursting from overpressure!

If the device ruptures, the medium may cause injuries, chemical burns or scalds!

▶ Do not exceed the maximum medium pressure. Observe specifi-

cations on the type label!

▶ Observe permitted ambient and media temperature.

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DN 15 - 65

20 40 60

100 120

140

Type 3232, 3233, 3233 K, 3234,

3235, 3239

Technical data

6.3.1 Allowable temperatures

Ambient temperature for actuators:

Material Temperature

PPS Up to 130 °C (briefly up to 150 °C)

Stainless steel Up to 130 °C (briefly up to 150 °C)

Gray cast iron Up to 130 °C (briefly up to 150 °C)

Tab. 1: Ambient temperature for actuators

Medium temperature for body:

Body material Temperature

Stainless steel -10 ... +140 °C

PVC (see PT-Graph) -10 ... +60 °C

PVDF (see PT-Graph) -10 ... +120 °C

PP (see PT-Graph) -10 ... +80 °C

Tab. 2: Medium temperature for body

Medium temperature for diaphragms:

Material Temperature Remarks

EPDM

PTFE

FKM

Tab. 3: Medium temperature for diaphragms

-10 ... +130 °C Steam sterilization up to +150 °C

-5 ... +130 °C

Dry up to +150 °C, otherwise only briefly up to +150 °C

6.3.2 Maximum permitted medium pressure

Permitted medium pressure depending on the medium temperature:

PVC

Medium pressure [bar]

Temperature [°C]

Fig. 3: Graph of medium pressure / Medium temperature

PVDF

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Type 3232, 3233, 3233 K, 3234,

3235, 3239

Technical data

Maximum permitted medium pressure

The values apply to body made of:

• Plastic,

• VA forged steel and VA precision casting, VA block material as well as VA tube-formed body with socket, DIN welding neck flange and welded connection in accordance with EN ISO 1127 (ISO 4200)

Orifice

(Diaphragm

size)

DN [mm]

4/6/8/10 10 10 10 10

15 10 10 10 10 20 10 10 10 10 25 10 10 10 10 32 10 10 10 10 40 10 10 10 10 50 7 7 10 10

Max. switchable medium pressure [bar]

Handwheel and

attachment PPS

EPDM/FKM PTFE/

advanced

PTFE/ laminated advanced

PTFE

Attachment stainless steel EPDM/FKM PTFE/

Handwheel PPS /

advanced

PTFE/ laminated advanced

PTFE

Tab. 4: Maximum permitted medium pressure

Maximum permitted medium pressure

The values are valid for body made of:

• VA pipe reshape body with welded support (DIN 11850 series 2)

Orifice

(Diaphragm

size)

DN [mm]

4/6/8/10 10 10 10 10

15 10 10 10 10 20 10 10 10 10 25 10 10 10 10 32 10 10 10 10 40 10 10 10 10 50 10 10 10 10

Max. switchable medium pressure [bar]

Handwheel and

attachment PPS

EPDM/FKM PTFE/

advanced

PTFE/ laminated advanced

PTFE

Attachment stainless steel EPDM/FKM PTFE/

Handwheel PPS /

advanced

PTFE/ laminated advanced

PTFE

Tab. 5: Maximum permitted medium pressure

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Type 3232, 3233, 3233 K, 3234,

3235, 3239

Technical data

Maximum permitted medium pressure

Orifice

(Diaphragm

size)

DN [mm]

65 5 5 80 5 5

100 5 5

Max. switchable medium pressure [bar]

Handwheel and attachment stainless steel

EPDM / FKM PTFE/advanced PTFE/

Tab. 6: Maximum permitted medium pressure

laminated advanced

PTFE

6.4 General technical data

Materials

Body Pipe reshape body (VA), Precision casting

(VG), Forged steel (VS), PP, PVC, PVDF

Actuator Handwheel and attachment PPS

Handwheel PPS and attachment stainless steel Handwheel and attachment stainless steel DN 65 to DN 100

Diaphragm EPDM, PTFE, FKM

Connections

Medium connection Welded connection according to DIN EN

1127 (ISO 4200), DIN 11850 series 2 other connections on request

Media

Flow media Type 3232; contaminated, aggressive,

ultrapure, sterile media and media with higher viscosity

Installation position In any position, floor drain valve type 3235;

actuator face down

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Type 3232, 3233, 3233 K, 3234,

3235, 3239

Structure and Function

7 STRUCTURE AND FUNCTION

7.1 Structure

The manually actuated diaphragm valve consists of a manual actuator and a 2/2-way valve body.

7.2 Type description

The types differ in the body.

7.2.1 Type 3232, 3233 and 3233 K

Handwheel with position indicator (see chapter 7.3.1)

Attachment

Diaphragm body

ort connection

7.2.2 Types 3234, 3235 and 3239

Type Body Structure

T-Valve

Type 3234

Tank bottom

valve

Type 3235

Y-Valve

Type 3239

T-Valve body

Tank bottom valve with welding flange

Y-Valve body

Fig. 4: Example of the 2/2-way valve type 3232, 3233

and 3233 K

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Tab. 7: Structure. Types 3234, 3235 and 3239

Type 3232, 3233, 3233 K, 3234,

3235, 3239

Installation

7.3 Function

The manual actuation of the handwheel transfers the force via a spindle and opens and closes the valve.

7.3.1 Position indicator

Actuator size DN 4, DN 6, DN 8, DN 10, DN 65, DN 80 and DN 100

When the valve is opened, a yellow mark is visible between the attachment and the handwheel.

Actuator size DN 15 to DN 50

From DN 15 a yellow cylinder provides information on the valve position:

• Yellow cylinder completely retracted in the handwheel: Valve closed (CLOSED position)

• Yellow cylinder projects all the way out of the handwheel: Valve opened (OPEN position)

8 INSTALLATION

8.1 Safety instructions

DANGER!

Risk of injury from high pressure in the equipment!

▶ Before loosening the lines and valves, turn off the pressure and

vent the lines.

Risk of injury due to electrical shock!

▶ Before reaching into the device or the equipment, switch off the

power supply and secure to prevent reactivation!

▶ Observe applicable accident prevention and safety regulations

for electrical equipment!

WARNING!

Risk of injury from improper installation!

▶ Installation may be carried out by authorized technicians only

and with the appropriate tools!

Risk of injury from unintentional activation of the system and an uncontrolled restart!

▶ Secure system from unintentional activation. ▶ Following assembly, ensure a controlled restart.

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8.2 Before installation

• Before connecting the valve, ensure the pipelines are flush.

• The flow direction is optional.

8.2.1 Installation position general

Installation for self-drainage of the body

It is the responsibility of the installer and operator to ensure self-drainage.

Installation for leakage detection

One of the bores (in the actuator base) for monitoring leakage must be at the lowest point.

8.2.2 Installation position 2/2-way valve

• The manually actuated diaphragm valve can be installed in any position.

To ensure self-drainage:

→ Install body inclined by angle α = 10° to 40° to the horizontal

(see Fig. 5). Forged and cast body feature a mark which must face upwards (12 o’clock position, see Fig. 6).

→ Observe an inclination angle of 1° – 5°. → One of the bores (in the actuator base) for monitoring leakage

must be at the lowest point.

Type 3232, 3233, 3233 K, 3234,

3235, 3239

Installation

Angle α: 10° to 40°

Inclination to the line axis 1° – 5°

Fig. 5: Installation position for self-drainage of the body

Mark for self-drainage angle

Fig. 6: Mark for the correct installation position

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Type 3232, 3233, 3233 K, 3234,

3235, 3239

Installation

8.2.3 Installation position T-valve Type 3234

For the installation of the T-valves into circular pipelines, we recommend the following installation positions:

When media is supplied: When media is removed:

Fig. 7: Installation position type 3234

8.2.4 Installation position Y-valve Type 3239

For the installation of the Y-valves into systems, we recommend the following installation positions:

When media is supplied: When media is removed:

8.2.5 Installation of the tank bottom valve Type 3235

For further information on containers and welding instructions, please refer to the standard ASME VIII Division I.

It is recommended to weld the valve prior to the container installation. However, it is possible to weld the valves to readyassembled containers.

Prior to welding, please check to ensure that:

• The tank bottom valve does not collide with other equipment compo-

nents and assembly/disassembly of the actuator is always possible.

• A minimal distance between two welding joints three times the

thickness of the container wall is adhered to.

It is recommended to weld the valve in the center of the drain to ensure optimum draining of the container.

The diameter of the hole in the container and the flange must be equal. The valve has two welding edges to make welding and positioning of the valve easier. The length of the welding edges is approximately 3 mm. In case the thickness of the container wall exceeds 3 mm, the valve must be positioned as shown in Fig. 9.

→ Prior to welding the valve, grind the outlet wall.

Fig. 8: Installation position type 3239

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Grinding point

on tank

Fig. 9: Grinding point on tank

Prior to commencing the welding process, check the charge number indicated on the supplied manufacturer‘s certificate

3.1.B.

Type 3232, 3233, 3233 K, 3234,

3235, 3239

Installation

8.2.6 Preparatory work

→ Clean pipelines (sealing material, swarf, etc.). → Support and align pipelines.

Devices with welded or glued body:

Before welding or gluing the body, the actuator and the diaphragm must be removed.

8.3 Installation

Procedure:

→ Position the flange into the hole so that the flange surface is

tangent to the drain surface.

→ Tack 4 welding points and check the position of the valve. → Weld the valve evenly to the inside and outside of the container,

with gas being supplied and using welding material compatible with the valve‘s stainless steel 316 L (DIN 1.4435).

→ Allow the welds to cool down before burnishing and cleaning

them according to the applicable specifications.

These instructions assist in the installation of the tank bottom valves and allow the prevention of deformation and softening within the containers.

Please observe the applicable laws and regulations of the respective country with regard to the qualification of welders and the execution of welding work.

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WARNING!

Risk of injury from improper installation!

Non-observance of the tightening torque is dangerous as the device may be damaged.

▶ Observe tightening torque during installation (see „8.3.2 Tight-

ening torques for diaphragms“).

8.3.1 Devices with welded or glued body

NOTE!

To prevent damage!

Before welding or gluing the body, the actuator and the diaphragm must be removed.

Type 3232, 3233, 3233 K, 3234,

3235, 3239

Installation

Procedure:

→ Cross-loosen fastening screws and remove actuator with dia-

phragm from the body.

→ Weld or glue body in the pipeline. → After welding or gluing in the body, smooth the body surface (if

required) by grinding.

→ Clean the body carefully. → Place actuator on the body. → Lightly cross-tighten the fastening screws until the diaphragm is

between the body and actuator. Do not tighten screws yet.

→ Activate the diaphragm valve twice to position the diaphragm

correctly.

→ Tighten the fastening screws up to the permitted tightening

torque (see tables in chapter „8.3.2 Tightening torques for diaphragms“).

8.3.2 Tightening torques for diaphragms

Actuator PPS or stainless steel

Orifice

(Diaphragm size)

DN [mm]

8 2 2,5 15 3,5 4 20 4 4,5 25 5 6 32 6 8 40 8 10 50 12 15

Tab. 8: Tightening torques for diaphragms. Actuator PPS or

stainless steel

Orifice

(Diaphragm size)

DN [mm]

65 20 30 80 30 40

100 40 50

Tab. 9: Tightening torques for diaphragms. Actuator stainless steel

Diaphragm

EPDM / FKM

Actuator stainless steel

Diaphragm

EPDM / FKM

Diaphragm PTFE/advanced PTFE/laminated

advanced PTFE

Diaphragm PTFE/advanced PTFE/laminated

advanced PTFE

english

Type 3232, 3233, 3233 K, 3234,

3235, 3239

Maintenance, Cleaning

9 MAINTENANCE, CLEANING

9.1 Safety instructions

DANGER!

Risk of injury due to electrical shock!

▶ Before reaching into the system , switch off the power supply

and secure to prevent reactivation!

▶ Observe applicable accident prevention and safety regulations

for electrical equipment!

WARNING!

Risk of injury from improper maintenance!

▶ Installation may be carried out by authorized technicians only

and with the appropriate tools!

Risk of injury from unintentional activation of the system and an uncontrolled restart!

▶ Secure system from unintentional activation. ▶ Following maintenance, ensure a controlled restart.

9.2 Maintenance work

9.2.1 Actuator

The actuator of the diaphragm valve is maintenance-free provided it is used according to these operating instructions.

9.2.2 Wearing parts of the diaphragm valve

Parts which are subject to natural wear:

• Seals

• Diaphragm

→ If leaks occur, replace the particular wearing parts with an appro-

priate spare part (see Chapter 11).

A bulging PTFE diaphragm may reduce the flow-rate.

9.2.3 Service life of the diaphragm

The service life of the diaphragm depends on the following factors:

• Diaphragm material,

• Medium,

• Medium pressure,

• Medium temperature.

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Type 3232, 3233, 3233 K, 3234,

3235, 3239

Repairs

9.2.4 Cleaning

Commercially available cleaning agents can be used to clean the outside.

NOTE!

Avoid causing damage with cleaning agents.

▶ Before cleaning, check that the cleaning agents are compatible

with the body materials and seals.

10 REPAIRS

10.1 Safety instructions

DANGER!

Risk of injury from high pressure in the equipment!

▶ Before loosening the lines and valves, turn off the pressure and

vent the lines.

Risk of injury due to electrical shock!

▶ Before reaching into the system , switch off the power supply

and secure to prevent reactivation!

▶ Observe applicable accident prevention and safety regulations

for electrical equipment!

WARNING!

Risk of injury from improper maintenance!

▶ Installation may be carried out by authorized technicians only

and with the appropriate tools. ▶ Observe the tightening torques. ▶ On completion of the work check valve for leaks and function.

Risk of injury from unintentional activation of the system and an uncontrolled restart!

▶ Secure system from unintentional activation. ▶ Following maintenance, ensure a controlled restart.

english

Type 3232, 3233, 3233 K, 3234,

3235, 3239

Repairs

10.2 Replacing the diaphragm

DANGER!

Risk of injury from discharge of medium (acid, alkali, hot media)!

It is dangerous to remove the device under pressure due to the sudden release of pressure or discharge of medium.

▶ Before removing a device, switch off the pressure and vent the lines. ▶ Completely drain the lines.

Fastening types

Orifice

(Diaphragm size)

DN [mm]

8 Diaphragm buttoned

20 25 40 50 65 80

100

Tab. 10: Fastening types for diaphragm

Fastening types for diaphragm

PTFE EPDM / FKM

Diaphragm with bayonet catch

Diaphragm buttoned15

Diaphragm screwed in

Body

Fig. 10: Replacing the diaphragm

Manual actuator

4 fastening screws

Diaphragm

4 fastenings screws

Mark tab for direction

of flow

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Type 3232, 3233, 3233 K, 3234,

3235, 3239

Repairs

Replacement of the diaphragm

Procedure:

→ Clamp valve body in a holding device (applies only to valves not

yet installed).

→ Cross-loosen fastening screws and remove actuator with dia-

phragm from the body.

→ Detach or unscrew old diaphragm. If attachment is with a

bayonet catch, loosen the diaphragm by turning it 90° (see table „Tab. 10: Fastening types for diaphragm“).

→ Turn handwheel all the way clockwise (CLOSED position). → Install new diaphragm in the actuator (see „Tab. 10: Fastening

types for diaphragm“).

→ Turn handwheel all the way counter-clockwise (OPEN position). → Align diaphragm.

Note marker for direction of flow!

→ Place actuator back on the body. → Lightly cross-tighten the fastening screws until the diaphragm is

between the body and actuator.

Do not tighten screws yet.

→ Activate the diaphragm valve once to position the diaphragm

correctly.

→ Tighten the fastening screws with the valve in the open position up

to the permitted tightening torque (see tables in chapter „10.2.1 Tightening torques for diaphragms“).

→ Check the tightening torque of the screws again.

10.2.1 Tightening torques for diaphragms

Actuator PPS or Stainless steel

Orifice

(Diaphragm size)

DN [mm]

8 2 2,5 15 3,5 4 20 4 4,5 25 5 6 32 6 8 40 8 10 50 12 15

Tab. 11: Tightening torques for diaphragms, actuator PPS or

stainless steel

Orifice

(Diaphragm size)

DN [mm]

65 20 30 80 30 40

100 40 50

Tab. 12: Tightening torques for diaphragms, actuator stainless steel

Diaphragm

EPDM / FKM

Actuator stainless steel

Diaphragm

EPDM / FKM

Diaphragm PTFE/advanced PTFE/laminated

advanced PTFE

Diaphragm PTFE/advanced PTFE/laminated

advanced PTFE

english

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