Emerson Fisher 67DFSR, Fisher 67D Series, Fisher 67DFS Installation Manual

www.sherregulators.com

D103151XUS2

Installation Guide English – May 2010

67D Series

Installation

Warning

Only qualied personnel should install or service a regulator. Regulators should be installed, operated, and maintained in accordance with international and applicable codes and regulations, and Emerson Process Management Regulator Technologies, Inc. instructions.

If the regulator vents uid or a leak develops in the system, it indicates that service is required. Failure to take the regulator out of service immediately may create a hazardous condition.

Personal injury, equipment damage, or leakage due to escaping uid or bursting of pressure-containing parts may result if this regulator is overpressured or is installed where service conditions could exceed the limits given in the Specications section, or where conditions exceed any ratings of the adjacent piping or piping connections.

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 exceeding limits.

Additionally, physical damage to the regulator could result in personal injury and property damage due to escaping uid. To avoid such injury and damage, install the regulator in a safe location.

The internal relief valve in the 67DFSR Series regulators do not provide full overpressure protection. The internal relief valve is designed for minor seat leakage only.

Clean out all pipelines before installation of the regulator and check to be sure the regulator has not been damaged or has collected foreign material during shipping. For NPT bodies, apply pipe compound to the

external pipe threads. For anged bodies, use suitable

line gaskets and approved piping and bolting practices. Install the regulator in any position desired, unless

otherwise specied, but be sure ow through the body

is in the direction indicated by the arrow on the body.

Introduction

This installation guide provides instructions for installation, startup, and adjustment. To receive a copy of the instruction manual, contact your local Sales

Ofce or view a copy at www.sherregulators.com.

For further information refer to: 67D Series Instruction Manual, form 5858, D103151X012.

P.E.D. Category

This product may be used as a safety accessory with pressure equipment in the following Pressure Equipment Directive 97/23/EC categories. It may also be used outside of the Pressure Equipment Directive using sound engineering practice (SEP) per table below.

PRODUCT SIZE CATEGORIES FLUID TYPE

1/2 NPT SEP 1

Specications

Body Size and End Connection Style

1/2 NPT

Maximum Inlet Pressure (Body Rating)

(1)

Filtered models: 17,2 bar (250 psig)

Unltered models: 27,6 bar (400 psig)

Maximum Outlet Pressure

(1)

10,3 bar (150 psig) over outlet pressure setting up to a maximum of 17,2 bar (250 psig)

Proof Test Pressure

All 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) 0 to 10,3 bar (0 to 150 psig)

Temperature Capabilities

(1)

With Nitrile (NBR)

Standard Bolting: -29° to 82°C (-20° to 180°F) Stainless Steel Bolting: -40° to 82°C (-40° to 180°F)

With Fluorocarbon (FKM): Polyethylene Filter (Standard):

-18° to 82°C (0° to 180°F) Polyvinylidene (PVDF), Stainless Steel, or Glass Filter (Optional): -18° to 149°C (0° to 300°F) With Silicone (VMQ) Diaphragm, Low Temperature

Nitrile (NBR) O-rings, and Low Temperature Bolting: -51° to 82°C (-60° to 180°F)

With Gauges: -29° to 82°C (-20° to 180°F) With Automatic Drain: 4° to 79°C (40° to 175°F)

1. The pressure/temperature limits in this Installation Guide and any applicable standard or code limitation should not be exceeded.

67D Series

Note

It is important that the regulator be installed so that the vent hole in the spring case is unobstructed at all times. For outdoor installations, the regulator should be located away from vehicular trafc and positioned so that water, ice, and other foreign materials cannot enter the spring case through the vent. Avoid placing the regulator beneath eaves or downspouts, and be sure it is above the probable snow level.

Overpressure Protection

The recommended pressure limitations are stamped on the regulator nameplate. Some type of overpressure protection is needed if the actual inlet pressure exceeds the maximum operating outlet pressure rating. Overpressure protection should also be provided if the regulator inlet pressure is greater than the safe working pressure of the downstream equipment.

Regulator operation below the maximum pressure limitations does not preclude the possibility of damage from external sources or debris in the line. The regulator should be inspected for damage after any overpressure condition.

Startup

The regulator is factory set at approximately the midpoint of the spring range or the pressure requested, so an initial adjustment may be required to give the desired results. With proper installation completed and relief valves properly adjusted, slowly open the upstream and downstream shut-off valves.

Adjustment

To change the outlet pressure, remove the closing cap or loosen the locknut and turn the adjusting screw clockwise to increase outlet pressure or counterclockwise to decrease pressure. Monitor the outlet pressure with a test gauge during the adjustment. Replace the closing cap or tighten the locknut to maintain the desired setting.

Taking Out of Service (Shutdown)

Warning

To avoid personal injury resulting from sudden release of pressure, isolate the regulator from all pressure before attempting disassembly.

1. Recommended Spare Part

Parts List

Types 67DFS and 67DFSR

Key Description

1 Body

2 Drain Valve

3 Flange Screw

(1)

O-Ring (Dripwell)

5 Dripwell

(1)

Filter Element

7 Spring Case

9 Filter Retainer

(1)

Valve Stem

(1)

Valve Spring

(1)

O-Ring (Spring Retainer)

(1)

Soft Seat

(1)

Diaphragm Assembly

17 Spring

18 Adjusting Screw

19 Locknut

20 Upper Spring Seat

22 Pressure Gauge

23 Pipe Plug

30 NACE Tag

31 Panel Mounting Nut

32 Wire Seal

33 Closing Cap

45 Screen Vent

48 Spring Retainer

(1)

O-ring (Plug)

(1)

O-ring (Stem)

57 Valve Plug

(1)

Seat

65 Filter Retainer Screw

(1)

Filter Gasket

Types 67DS and 67DSR