Brooks Instrument Control Valve User Manual

Installation and Operation Manual

X-VA-8503-eng
Part Number: 541B087AHG
March, 2008

NRS*
Needle Control Valves
Models 8503, 8504, 8513 & 8514

Model 8504

Straight

Pattern

Needle Valve

Model 8513 Angle Pattern

Needle Valve with

Numerical Handle

Installation and Operation Manual

X-V A-8503-eng

Part Number: 541B087AHG

Needle Control Valves Models 8503 and 8504

March, 2008

Essential Instructions

Read this page before proceeding!

Brooks Instrument designs, manufactures and tests its products to meet many national and international standards. Because
these instruments are sophisticated technical products, you must properly install, use and maintain them to ensure they
continue to operate within their normal specifications. The following instructions must be adhered to and integrated into your
safety program when installing, using and maintaining Brooks Products.

• Read all instructions prior to installing, operating and servicing the product. If this instruction manual is not the correct
manual, please see back cover for local sales office contact information. Save this instruction manual for future reference.

• If you do not understand any of the instructions, contact your Brooks Instrument representative for clarification.

• Follow all warnings, cautions and instructions marked on and supplied with the product.

• Inform and educate your personnel in the proper installation, operation and maintenance of the product.

• Install your equipment as specified in the installation instructions of the appropriate instruction manual and per applicable
local and national codes. Connect all products to the proper electrical and pressure sources.

• T o ensure proper performance, use qualified personnel to inst all, operate, update, program and maintain the product.

• When replacement parts are required, ensure that qualified people use replacement parts specified by Brooks Instrument.
Unauthorized parts and procedures can affect the product's performance and place the safe operation of your process at
risk. Look-alike substitutions may result in fire, electrical hazards or improper operation.

• Ensure that all equipment doors are closed and protective covers are in place, except when maintenance is being
performed by qualified persons, to prevent electrical shock and personal injury.

Pressure Equipment Directive (PED)

All pressure equipment with an internal pressure greater than 0.5 bar (g) and a size larger than 25mm or 1" (inch) falls under the
Pressure Equipment Directive (PED). The Directive is applicable within the European Economic Area (EU plus Norway, Iceland
and Liechtenstein). Pressure equipment can be traded freely within this area once the PED has been complied with.

• Section 1 of this manual contains important safety and operating instructions related to the PED directive.

• Meters described in this manual are in compliance with EN directive 97/23/EC module H Conformity Assessment.

• All Brooks Instrument Flowmeters fall under fluid group 1.

• Meters larger than 25mm or 1" (inch) are in compliance with category I, II, III of PED.

• Meters of 25mm or 1" (inch) or smaller are Sound Engineering Practice (SEP).

Installation and Operation Manual

X-VA-8503-eng
Part Number: 541B087AHG
March, 2008

Paragraph Page
Number Number

Introduction Section 1

1-1 Description .....................................................................................................................................1-1

1-2 Specifications.................................................................................................................................. 1-1

Installation Section 2

2-1 General ...........................................................................................................................................2-1

2- 2 Receipt of Equipment ......................................................................................................................2-1

2- 3 Recommended Storage Practice .....................................................................................................2-1

2- 4 Return Shipment ............................................................................................................................. 2-2

2- 5 Transit Precautions ......................................................................................................................... 2-2

2-6 Removal from Storage ..................................................................................................................... 2-2

2-7 Installation ...................................................................................................................................... 2-2

2- 8 Panel Mounting NRS Valve..............................................................................................................2-3

2- 9 Panel Mounting NRS Valve with Digit al Handle ................................................................................ 2-4

Operation Section 3

3- 1 Operating Precaution ...................................................................................................................... 3-1

3-2 General ...........................................................................................................................................3-1

Needle Control Valves Models 8503 & 8504

Contents

Maintenance Section 4

4-1 Maintenance ................................................................................................................................... 4-1

Warranty, Local Sales/Service Contact Information ....................................................................... Back Cover

FIGURES

Figure Page
Number Number

1- 1 Dimensions, Models 8503 & 8504 ................................................................................................... 1-3

1- 2 Exploded View NRS Valve............................................................................................................... 1-3

1- 3 Numerical Handle and NRS Needle Valve........................................................................................ 1-3

2- 1 Panel Mounting Drawing.................................................................................................................. 2-3

i

Contents

Needle Control Valves Models 8503 & 8504

Installation and Operation Manual

X-VA-8503-eng

Part Number: 541B087AHG

March, 2008

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Installation and Operation Manual

X-VA-8503-eng
Part Number: 541B087AHG
March, 2008

1-1 Description

Brooks® NRS (Non-Rising Stem) Needle V alves are designed specifically for
low flow gas and liquid applications. Straight and angle p attern models in
Brass or Stainless S teel are available. Five different interchangeable
connection fittings can be used with each.

Models 8503 & 8504 are supplied with an NRS control valve. It features a
positive, direct mechanical means of adjusting a sliding tapered needle
which virtually prevents sticking due to foreign matter in the fluid stream.
These valves are particularly suitable for the precise control requirements in
chromatography . The flow is constant for any given stem position. Saw­toothing is eliminated. Six needles with different tapers provide a wide choice
of flow ranges for all models. Each increases capacity by an appropriate
factor of three. Needles and orifices can be changed without removing the
valve from the line. (Two different orificies are used - one for needle sizes 1-3,
another for size 4-6.)

1-2 Specifications

Needle Control Valves Models 8503 and 8504

Section 1 Introduction

Capacities and Pressure Drops

Needle Orifice (Std. cc/min.)

Taper No. Type Helium Air Water

1 300 150 4
2 Small 700 350 10
3 (0.041") 1,400 600 20
4 6,000 2,400 80
5 Larger 18,000 6,800 200
6 (0.093") 55,000 22,000 650

Capacities measured with 10 psig supply and an atmospheric
pressure exhaust. Flow capacities will vary for different gases,
liquids and pressures. Consult factory for further information.

Maximum Capacity

Maximum Operating Pressure

Brass Model: 600 psig
Stainless Steel Model: 1000 psig

Maximum Operating Temperature

Brass Model: 180°F
Stainless Steel Model: 250°F

Connections

Standard: 1/8" Female NPT - Integral
Optional: 1/8", 1/4" compression fitting; 1/4" female NPT; 1/4" ID hose type
adaptors

Dimensions

Refer to Figure 1-1

1-1

Section 1 Introduction

Installation and Operation Manual

Needle Control Valves Models 8503 and 8504

X-VA-8503-eng

Part Number: 541B087AHG

March, 2008

1-3 Compatible Brooks Equipment

Materials of Construction

Brass Model: Nickel plated brass body. Size 1-3: Brass and Delrin

®

orifice;

sizes 4-6: Brass orifice; 316 steel valve needle, brass plunger, Buna-N O-rings.
Stainless Steel Model: 316 Stainless steel body and valve needle. Size 1-3:

Stn. Stl. and Teflon® orifice; Sizes 4-6: Stn. Stl. orifice; Stn. Stl. plunger, Viton
fluoroelastomers O-rings

Numerical Handle: Model 8513: Right angle, Model 8514: Straight pattern.

3 digit direct read numerical handle: 10 digits per turn (15 turns to full open)
readable to 1/20 turn. Handle can be rotated 360° to facilitate reading of
indicator.

®

1-2

Installation and Operation Manual

X-VA-8503-eng
Part Number: 541B087AHG
March, 2008

Needle Control Valves Models 8503 and 8504

Section 1 Introduction

Figure 1-1 Dimensions, Models 8503 & 8504

Figure 1-2 Exploded View NRS Valve

Figure 1-3 Numerical Handle and NRS Needle Valve

1-3

Section 1 Introduction

Installation and Operation Manual

Needle Control Valves Models 8503 and 8504

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1-4

Installation and Operation Manual

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Part Number: 541B087AHG
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2-1 General

This section contains the procedures for the receipt and installation of the
instrument. Do not attempt to start the system until the instrument has
been permanently installed. It is extremely important that the start-up
procedures be followed in the exact sequence presented.

2-2 Receipt of Equipment

When the instrument is received, the outside packing case should be
checked for damage incurred during shipment. If the packing case is
damaged, the local carrier should be notified at once regarding his liability . A
report should be submitted to your nearest Product Service Department.

Brooks Instrument

407 W. Vi ne Street
P.O. Box 903
Hatfield, PA 19440 USA
Toll Free (888) 554-FLOW (3569)
Tel [phone]
Fax [phone]
E-mail: [e-mail]
www.Brooks Instrument.com

Needle Control Valves Models 8503 and 8504

Section 2 Installation

2-3 Recommended Storage Practice

Brooks Instrument Brooks Instrument

Neonstraat 3 1-4-4 Kitasuna Koto-Ku
6718 WX Ede, Netherlands Tokyo, 136-0073 Japan
P.O. Box 428 Tel [phone]
6710 BK Ede, Netherlands Fax [phone]
Tel [phone] Email: [e-mail]
Fax [phone]
E-mail: [e-mail]

Remove the envelope containing the packing list. Carefully remove the
instrument from the packing case. Make sure spare parts are not discarded
with the packing materials. Inspect for damaged or missing parts.

If intermediate or long-term storage of equipment is required, it is
recommended that the equipment be stored in accordance with the
following:

a. Within the original shipping container .
b. Stored in a sheltered area, preferably a warm, dry , heated warehouse.
c. Ambient temperature of 70° F (21° C) nominal, 109° F (43° C)

maximum,
45° F (7° C) minimum.

d. Relative humidity 45% nominal, 60% maximum, 25% minimum.

Upon removal from storage a visual inspection should be conducted
to verify the condition of equipment is "as received".

2-1

Section 2 Installation

Installation and Operation Manual

Needle Control Valves Models 8503 and 8504

2-4 Return Shipment

Prior to returning any instrument to the factory , contact your nearest Brooks
location for a Return Materials Authorization Number (RMA#). This can be
obtained from one of the following locations:

Brooks Instrument

407 W. Vi ne Street
P.O. Box 903
Hatfield, PA 19440 USA
Toll Free (888) 554-FLOW (3569)
Tel [phone]
Fax [phone]
E-mail: [e-mail]
www.Brooks Instrument.com

Brooks Instrument Brooks Instrument

Neonstraat 3 1-4-4 Kitasuna Koto-Ku
6718 WX Ede, Netherlands Tokyo, 136-0073 Japan
P.O. Box 428 Tel [phone]
6710 BK Ede, Netherlands Fax [phone]
Tel [phone] Email: [e-mail]
Fax [phone]
E-mail: [e-mail]

X-V A-8503-eng

Part Number: 541B087AHG

March, 2008

2-5 Transit Precautions

2-6 Removal from Storage

Instrument must have been purged in accordance with the following:

Any instrument returned to Brooks requires completion of Form RPR003-1,
Brooks Instrument Decontamination S tatement, as well as, a Material Safety
Data Sheet (MSDS) for the fluid(s) used in the instrument. This is required
before any Brooks Personnel can begin processing. Copies of the form
can be obtained from any Brooks Instrument location listed above.

T o safeguard against damage during transit, transport the instrument to the
installation site in the same container used for transportation from the
factory if circumstances permit.

Upon removal of the instrument from storage, a visual inspection should be
conducted to verify its "as-received" condition. If the instrument has been
subject to storage conditions in excess of those recommended (See
Section 2-3), it should be subjected to a pneumatic pressure test in
accordance with applicable vessel codes.

2-7 Installation

2-2

The inlet and outlet connections are identified by the terms "in" and "out".
The control valve may be installed in any attitude. Care must be exercised
to prevent solids from entering the control valve. The internal flow area is very
small and any foreign material entering the control valve will impair the
operation of the needle valve. Inlet and outlet filters should be installed.

Installation and Operation Manual

X-VA-8503-eng
Part Number: 541B087AHG
March, 2008

It is recommended that a Brooks Model 1390 Filter with a rating of two (2)
microns, be installed on the inlet and outlet sides of the valve body . This
filter will reduce the amount of foreign matter which could impair the operation
of the valve.

2-8 Panel Mounting Standard NRS Valve (Reference Figure 2-1)

Needle Control Valves Models 8503 and 8504

Section 2 Installation

Figure 2-1 Panel Mounting Drawing

a. Open the valve by rotating the knob (19) counterclockwise until stop is

reached.
b. Using a 1/16" hex wrench, loosen the set screw (2) and remove knob (1).
c. Using a .050" hex wrench, loosen the set screw (17).
d. Remove the bonnet nut (16), and the front panel nut (15F) from the

bonnet (12).
e. From rear of panel, insert the valve bonnet into the panel opening. The

amount of valve protrusion is controlled by adjusting the rear panel nut

(15R).
f. Install and tighten front panel nut (15F).
g. Install and securely tighten the bonnet nut (16).
h. Using a .050" hex wrench, tighten set screw (17).
i. Install knob.
j. Using a 1/16" hex wrench, tighten set screw (2).
k. Connect the inlet and outlet connecting lines to the valve body.

2-3

Section 2 Installation

Installation and Operation Manual

Needle Control Valves Models 8503 and 8504

2-9 Panel Mounting NRS Valve With Digital Handle (Reference Figure 2-1)

a. Open the valve by rotating the knob (19) counterclockwise until stop is

reached.
b. Loosen four set screws (22) and remove counter housing (23) from

bonnet nut (20).
c. Loosen bonnet set screw (24) and remove bonnet nut (20) and front

panel nut (15F) from bonnet (12).
d. From rear of panel, insert the valve bonnet into the panel opening. The

amount of valve protrusion is controlled by adjusting rear panel nut (15R).
e. Install and tighten front panel nut (15F).
f. Install and tighten bonnet nut (20) and tighten set screw (24).
g. Install counter housing (23) on bonnet nut (20). Make sure digits indicate

150. Tighten four set screws (22).

h. Connect the inlet and outlet connecting lines to the valve body.

X-V A-8503-eng

Part Number: 541B087AHG

March, 2008

2-4

Installation and Operation Manual

X-VA-8503-eng
Part Number: 541B087AHG
March, 2008

3-1 Operating Precaution

3-2 General

After the NRS needle control valve has been installed in the flow line, it is
ready for operation. When the valve knob is turned counterclockwise to the
stop, the valve is fully opened. Turning the valve knob clockwise redues flow
and eventually will shut off flow. The valve is designed for fine control;
excessive tightening of the valve knob can damage the valve and reduce its
effectiveness.

Needle Control Valves Models 8503 and 8504

Section 3 Operation

3-1

Section 3 Operation

Installation and Operation Manual

Needle Control Valves Models 8503 and 8504

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3-2

Installation and Operation Manual

X-VA-8503-eng
Part Number: 541B087AHG
March, 2008

4-1 Maintenance

Needle Control Valves Models 8503 and 8504

Section 4 Maintenance

The Brooks Model 8503 and 8504 NRS Valves require no maintenance when
installed in a dirt-free flow line.

Repair or disassembly of the valve in the field is not recommended. During
assembly parts are ultrasonically cleaned and "clean" room assembled for
trouble-free operation. DO NOT attempt to disassemble the valve.

If there is evidence that the valve has been disassembled in the field, the
factory warranty will be voided, and no credit will be issued.

The optional filter elements should be periodically inspected and
ultrasonically cleaned or replaced if necessary . When reinstalling the filter
elements use care to prevent any dirt or foreign matter from entering the
lines.

If problems are encountered with the operation of the valve, the complete
unit should be replaced or returned to the factory for servicing.

4-1

Installation and Operation Manual

X-V A-8503-eng

Part Number: 541B087AHG

Needle Control Valves Models 8503 and 8504

LIMITED WARRANTY

Seller warrants that the Goods manufactured by Seller will be free from defects in materials or workmanship under normal
use and service and that the Software will execute the programming instructions provided by Seller until the expiration of the
earlier of twelve (12) months from the date of initial installation or eighteen (18) months from the date of shipment by Seller.
Products purchased by Seller from a third party for resale to Buyer (“Resale Products”) shall carry only the warranty
extended by the original manufacturer.
All replacements or repairs necessitated by inadequate preventive maintenance, or by normal wear and usage, or by fault of
Buyer, or by unsuitable power sources or by attack or deterioration under unsuitable environmental conditions, or by abuse,
accident, alteration, misuse, improper installation, modification, repair, storage or handling, or any other cause not the fault
of Seller are not covered by this limited warranty, and shall be at Buyer’s expense.
Goods repaired and parts replaced during the warranty period shall be in warranty for the remainder of the original warranty
period or ninety (90) days, whichever is longer. This limited warranty is the only warranty made by Seller and can be
amended only in a writing signed by an authorized representative of Seller.

BROOKS LOCAL AND WORLDWIDE SUPPORT

Brooks Instrument provides sales and service facilities around the world, ensuring quick delivery from local stock, timely
repairs and local based sales and service facilities.
Our dedicated flow experts provide consultation and support, assuring successful applications of the Brooks flow
measurement and control products.
Calibration facilities are available in local sales and service offices. The primary standard calibration equipment to calibrate
our flow products is certified by our local Weights and Measures Authorities and traceable to the relevant international
standards.

March, 2008

START -UP SERVICE AND IN-SITU CALIBRA TION

Brooks Instrument can provide start-up service prior to operation when required.
For some process applications, where ISO-9001 Quality Certification is important, it is mandatory to verify and/or
(re)calibrate the products periodically. In many cases this service can be provided under in-situ conditions, and the results
will be traceable to the relevant international quality standards.

CUSTOMER SEMINARS AND TRAINING

Brooks Instrument can provide customer seminars and dedicated training to engineers, end users and maintenance
persons. Please contact your nearest sales representative for more details.

HELP DESK

In case you need technical assistance:

Americas
Europe +(31) 318 549 290 Within Netherlands 0318 549 290

Asia

Due to Brooks Instrument's commitment to continuous improvement of our products, all
specifications are subject to change without notice.

TRADEMARKS

Brooks .......................................................................Brooks Instrument, LLC

Delrin ................................................................ E.I. DuPont de Nemours & Co.

NRS ............................................................................Brooks Instrument, LLC

Teflon ............................................................... E.I. DuPont de Nemours & Co.

Viton............................................................ DuPont Performance Elastomers

1-888-554-FLOW

+011-81-3-5633-7100