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67C and 67CF Series

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Installation Guide

English – December 2003

www.FISHERregulators.com

1. The pressure/temperature limits in this installation guide and any applicablestandard or code limitation should not be exceeded.

Introduction

This installation guide provides instructions forinstallation, startup, and adjustment. To receive a copy ofthe instruction manual, contact your local Fisher SalesOffice or Sales Representative or view a copy atwww.FISHERregulators.com. For further information referto: Type 67C Series Instruction Manual, form 5469,

D102601X012.

P.E.D. Category

This product may be used as a safety accessory with pressureequipment in the following Pressure Equipment Directive 97/23/ECcategories. It may also be used outside of the Pressure Equipment

Directive using sound engineering practice (SEP) per table below.

EZISTCUDORP SEIROGETAC EPYTDIULF

)hcni-4 / 1(6ND PES 1

Specifications

Body Size and End Connection Style

DN 6 (1/4-inch) NPT screwed

Maximum Inlet Pressure (Body Rating)(1)

17,2 bar (250 psig)

Maximum Outlet Pressure(1)

3,4 bar (50 psig) over outlet pressure setting

Proof Test PressureAll Pressure Retaining Components have been proof

tested per Directive 97/23/EC - Annex 1, Section 7.4

Outlet Pressure Ranges(1)

0 to 1,4 bar (0 to 20 psig)0 to 2,4 bar (0 to 35 psig)0 to 4,1 bar (0 to 60 psig)0 to 8,6 bar (0 to 125 psig)

Temperature Capabilities(1)

Nitrile (NBR): -40 to 82°C (-40 to 180°F)

Installation

Only qualified personnel should install or servicea regulator. Regulators should be installed,

operated, and maintained in accordance withinternational and applicable codes andregulations, and Fisher instructions.

If the regulator vents fluid or a leak develops inthe system, it indicates that service is required.Failure to take the regulator out of serviceimmediately may create a hazardous condition.

Personal injury, equipment damage, or leakagedue to escaping fluid or bursting of pressure-containing parts may result if this regulator is

overpressured or is installed where serviceconditions could exceed the limits given in theSpecifications section, or where conditionsexceed any ratings of the adjacent piping or pipingconnections.

To avoid such injury or damage, provide pressure-relieving or pressure-limiting devices (as required

by the appropriate code, regulation, or standard)to prevent service conditions from exceedinglimits.

Additionally, physical damage to the regulatorcould result in personal injury and propertydamage due to escaping fluid. To avoid such injuryand damage, install the regulator in a safelocation.

The internal relief valve in the 67C Seriesregulators does not provide full overpressureprotection. The internal relief valve is designedfor minor seat leakage only.

Clean out all pipelines before installation of the regulatorand check to be sure the regulator has not been damaged orhas collected foreign material during shipping. For NPTbodies, apply pipe compound to the male pipe threads. Forflanged bodies, use suitable line gaskets and approvedpiping and bolting practices. Install the regulator in anyposition desired, unless otherwise specified, but be sureflow through the body is in the direction indicated by the arrowon the body.

Note

It is important that the regulator be installed so thatthe vent hole in the spring case is unobstructed at all

times. For outdoor installations, the regulator shouldbe located away from vehicular traffic and positionedso that water, ice, and other foreign materials cannotenter the spring case through the vent. Avoid placingthe regulator beneath eaves or downspouts, and besure it is above the probable snow level.

Overpressure Protection

The recommended pressure limitations are stamped onthe regulator nameplate. Some type of overpressureprotection is needed if the actual inlet pressure exceeds themaximum operating outlet pressure rating. Overpressureprotection should also be provided if the regulator inlet

pressure is greater than the safe working pressure of thedownstream equipment.

Regulator operation below the maximum pressure limitationsdoes not preclude the possibility of damage from externalsources or debris in the line. The regulator should be inspectedfor damage after any overpressure condition.

Startup

The regulator is factory set at approximately the midpoint ofthe spring range or the pressure requested, so an initial

7/16/2019 Fisher 67CFR

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67C and 67CF Series

For information, contact Fisher Controls, International: Within USA (800) 588-5853 – Outside USA (972) 542-0132France – (33) 23-733-4700Singapore – (65) 770-8320Mexico – (52) 57-28-0888

 ©Fisher Controls International, Inc., 2002, 2003; All Rights Reserved

Fisher and Fisher Regulators are marks owned by Fisher Controls International, Inc. The Emerson logo is a trade mark and service mark of Emerson Electric Co.

All other marks are the property of their respective owners.

The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they are not to be construed as warranties or guarantees, express or implied, regarding the products or services described herein or their use or applicability. We reserve the right to modify or improve the designs or specifications of such products at any time without notice.

Printed in U.S.A. www.FISHERregulators.com

B2693

B2697

40645

adjustment may be required to give the desired results. Withproper installation completed and relief valves properlyadjusted, slowly open the upstream and downstream shutoffvalves.

Adjustment

To change the outlet pressure, remove the closing cap orloosen the locknut and turn the adjusting screw clockwiseto increase outlet pressure or counterclockwise to decreasepressure. Monitor the outlet pressure with a test gaugeduring the adjustment. Replace the closing cap or tightenthe locknut to maintain the desired setting.

Taking Out of Service (Shutdown)

To avoid personal injury resulting from sudden

release of pressure, isolate the regulator from allpressure before attempting disassembly.

Type 67CF and 67CFR Parts List

Key Description

1 Body2 Drain Valve3 Flange Screw4(1) O-Ring5 Dripwell6(1) Filter Element7 Spring Case9 Filter Retainer

10(1,2) Valve Cartridge11(1,2) Valve Plug12(1,2) Valve Spring

Key Description

13(1,2) Valve Retainer14(1,2) O-Ring15(1,2) Soft Seat16(1) Diaphragm Assembly17 Spring1 8 Adjusting Screw19 Locknut2 0 Upper Spring Seat

26(1) Filter Gasket34 Spacer

1. Recommended Spare Part

2. Valve Cartridge Assembly includes keys 10, 11, 12, 13, 14, and 15.

Figure 1. Type 67CF and 67CFR Spacer Diameter and Installation 

Figure 2. Type 67CF and 67CFR Assembly Drawing 

SPACER OUTERDIAMETER

SPACER WIDTH

AND INNERDIAMETER

SPACER

0.50(12,7)

0.25(6,35)

0.32(8,12)

OD

ID

Type 67C and 67CR Parts List

Key Description

1 Body3 Flange Screw4(1) O-Ring7 Spring Case10(1,2) Valve Cartridge11(1,2) Valve Plug12(1,2) Valve Spring13(1,2) Valve Retainer

Key Description

14(1,2) O-Ring15(1,2) Soft Seat16(1) Diaphragm Assembly17 Spring18 Adjusting Screw19 Locknut20 Upper Spring Seat39 Bottom Plate

Figure 3. Type 67C and 67CR Assembly Drawing