Emerson FISHER 627W User manual

Types 627W and 627WH

Installation Guide

D102504X014

English - March 2009

Introduction

This installation guide provides instructions for

installation, startup and adjustment. To receive a

copy of the instruction manual, contact your local

Sales Office or view a copy at www.fisher.com. For

further information refer to: Types 672W and 627WH

Instruction Manual, D102504X012.

PED Category

This product may be used as a safety accessory

with pressure equipment in the following Pressure

Equipment Directive categories. It may also be used

outside of the Pressure Equipment Directive using

sound engineering practice (SEP) per table below.

For information on the current PED revision see

Bulletin: D103053X012.

PRODUCT SIZE CATEGORIES

DN 20 and 25 / NPS 3/4 and 1 SEP

DN 50 / NPS 2 II

Specifications

Available Constructions

Type 627W: Direct operated pressure reducing

liquid regulator.

Type 627WH: Type 627W with a diaphragm limiter

to deliver a higher outlet pressure.

Control Line Option: Type 627W or 627WH with

a stem seal between the body outlet pressure and

diaphragm case. Pressure is measured under

the diaphragm through the 1/4 NPT downstream

control line connection.

Body Sizes and End Connection Styles

NPT: DN 20, 25 or 50 / NPS 3/4, 1 or 2

CL150, CL300, CL600 RF Flanged:

DN 25 or 50 / NPS 1 or 2

PN 16/25/40: DN 25 or 50 / NPS 1 or 2

Maximum Spring and Diaphragm

Casing Pressure(1)

See Table 1

Body Pressure Shell Rating(1)

NPT (Steel): 138 bar / 2000 psig

NPT (Ductile Iron): 68.9 bar / 1000 psig

CL600 RF Flanged (Steel): 103 bar / 1500 psig

Maximum Operating Inlet and Outlet

Pressure Ranges(1)

See Table 2 for pressures by orifice and spring range

Outlet Pressure Ranges

See Table 2

Orifice Diameters

Standard: 6.4 or 13 mm / 1/4 or 1/2 in.

Optional: 2.4, 3.2, 4.8 or 9.5 mm /

3/32, 1/8, 3/16 or 3/8 in.

Proof Test Pressure

All Pressure Retaining Components have been

proof-tested per Directive.

Temperature Capabilities(1)(2)

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

Fluorocarbon (FKM): -18 to 149°C / 0 to 300°F

Ethylenepropylene (EPDM): -40 to 135°C /

-40 to 275°F

Perfluoroelastomer (FFKM): -18 to 204°C /

0 to 400°F

Nylon (PA): -40 to 93°C / -40 to 200°F

Polytetrafluoroethylene (PTFE): -40 to 204°C /

-40 to 400°F

Installation

WARNING

Only qualified 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 fluid 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 fluid 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

Specifications section or where conditions

exceed any ratings of the adjacent piping

or piping connections.

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

2. Stainless steel body is rated to -40°C / -40°F. Steel and ductile iron bodies are rated to -29°C / -20°F.

Types 627W and 627WH

To avoid such injury or damage, provide

pressurerelieving 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

fluid. To avoid such injury and damage,

install the regulator in a safe location.

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 flanged bodies, use

suitable line gaskets and approved piping and bolting

practices. Install the regulator in any position desired,

unless otherwise specified, but be sure flow through

the body is in the direction indicated by the arrow on

the body.

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

traffic 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 shutoff 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.

Key Description

1 Body

2* Orifice

3 Cap Screw (not shown)

5 Lower Diaphragm Casing

8 Stem Guide

9* Valve Plug Assembly

10 Stem

11* Stem O-ring

12* Stem Backup Ring

13 Hair Pin Clip

14 Drive Pin

15 Lever

16 Lever Retainer

17 Lever Pin

18 Cap Screw

19 Pusher Post Assembly

23* Diaphragm

29 Spring Case

30 Vent Assembly

24 Diaphragm Head

Key Description

31 Lower Spring Seat

(Type 627W only)

32 Spring

33 Upper Spring Seat

34 Locknut

35 Adjusting Screw

36 Adjusting Screw Cap

37 Cap Screw

44* O-ring

45* Backup Ring

46 Cap Screw

50 Diaphragm Limiter

(Type 627WH only)

51* O-ring (Type 627WH only)

52* O-ring

67 Drive Screw (not shown)

68* Diaphragm Protector

(not shown)

72 Pipe Plug for 1/4 NPT Tap

(not shown)

Parts List

* Recommended spare part

Types 627W and 627WH

Table 1. Maximum Spring and Diaphragm Casing Pressure(1)

MAXIMUM PRESSURE DESCRIPTION DIAPHRAGM

CASING STYLE

TYPE 627W TYPE 627WH

bar psig bar psig

Maximum pressure to spring and diaphragm casings to prevent leak to atmosphere

(internal parts damage may occur)

Ductile iron 17.2 250 - - - -

Steel or Stainless steel 17.2 250 55.2 800

Maximum pressure to spring and diaphragm casings to prevent burst of casings during

abnormal operation (leak to atmosphere and internal parts damage may occur)

Ductile iron 32.1 465 - - - -

Steel or Stainless steel 103 1500 103 1500

Maximum diaphragm casing overpressure (above setpoint) to prevent damage to internal parts. All materials 4.1 60 8.3 120

1. If the spring case is pressurized, a metal adjusting screw cap is required. Contact your Local Sales Ofce for details.

Figure 1. Type 627W Regulator Assembly

34B7395

APPLY LUBRICANT APPLY LUBRICANT

Table 2. Maximum Inlet Pressure, Dierential Pressure and Outlet Pressure Ranges

TYPE OUTLET PRESSURE

RANGE AND COLOR, bar / psig

ORIFICE SIZE MAXIMUM INLET PRESSURE MAXIMUM DIFFERENTIAL PRESSURE

Elastomer Disk Nylon Disk Elastomer Disk Nylon Disk

mm In. bar psig bar psig bar psig bar psig

627W

0.69 to 1.4 / 10 to 20,

Yellow

6.4 1/4 15.2 220 29.0 420 13.8 200 27.6 400

13 1/2 15.2 220 17.2 250 13.8 200 17.2 250

1.0 to 2.8 / 15 to 40,

Green

6.4 1/4 16.5 240 30.3 440 13.8 200 27.6 400

13 1/2 16.5 240 20.7 300 13.8 200 20.7 300

2.4 to 5.5 / 35 to 80,

Blue

6.4 1/4 19.3 280 33.1 480 13.8 200 27.6 400

13 1/2 19.3 280 33.1 480 13.8 200 27.6 400

4.8 to 10.3 / 70 to 150,

Red

6.4 1/4 24.1 350 37.9 550 13.8 200 27.6 400

13 1/2 24.1 350 37.9 550 13.8 200 27.6 400

627WH

9.7 to 17.2 / 140 to 250,

Blue

6.4 1/4 31.0 450 44.8 650 13.8 200 27.6 400

13 1/2 31.0 450 34.5 500 13.8 200 17.2 250

16.5 to 34.5 / 240 to 500,

Red

6.4 1/4 48.3 700 62.1 900 13.8 200 27.6 400

13 1/2 48.3 700 51.7 750 13.8 200 17.2 250

Figure 2. Type 627WH Regulator Assembly

37B9752

14 17 16 11 12 10 13

35 34 32 29 36

14 17 16 11 12 10 13

5229323435

Types 627W and 627WH

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[email protected]

Emerson Automation Solutions

For further information on the current

PED revision see Bulletin: D103053X012

or scan the QR code.

Fisher.com

Americas

McKinney, Texas 75070 USA

T +1 800 558 5853

+1 972 548 3574

Europe

Bologna 40013, Italy

T +39 051 419 0611

Asia Pacic

Singapore 128461, Singapore

T +65 6777 8211

Middle East and Africa

Dubai, United Arab Emirates

T +971 4 811 8100

The Emerson logo is a trademark and service mark of Emerson

Electric Co. All other marks are the property of their prospective owners.

Fisher™ is a mark owned by Fisher Controls International LLC, a

business of Emerson Automation Solutions.

The contents of this publication are presented for information purposes

only, and while 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. All sales are governed by our terms and conditions, which

are available on request. We reserve the right to modify or improve the

designs or specications of our products at any time without notice.

Emerson Process Management Regulator Technologies, Inc does not

assume responsibility for the selection, use or maintenance of any

product. Responsibility for proper selection, use and maintenance of any

Emerson Process Management Regulator Technologies, Inc. product

remains solely with the purchaser.

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