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D100305X012

Type 655 and 655R Actuators

for Self-Operated Control

Contents

Introduction 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Scope of Manual 1. . . . . . . . . . . . . . . . . . . . . . . . .

Description 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Specifications 2. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installation 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Actuator Mounting 3. . . . . . . . . . . . . . . . . . . . . . . .

Loading Connections 6. . . . . . . . . . . . . . . . . . . . . .

Startup 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Startup for Pressure-Reducing Service 6. . . . . .

Startup for Pressure-Relief Service 7. . . . . . . . .

Adjustment for Pressure-Reducing or

Pressure-Relief Service 7. . . . . . . . . . . . . . . . .

Shutdown 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Maintenance 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Actuator 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Top-Mounted Handwheel 10. . . . . . . . . . . . . . . . .

Parts Ordering 12. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Parts List 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Introduction

Scope of Manual

This instruction manual provides installation,

adjustment, maintenance, and parts ordering for the

Type 655 and 655R actuators and the top-mounted

handwheel. Refer to separate instruction manuals

for information about valves and accessories used

with these actuators.

Do not install, operate, or maintain 655 and 655R

actuators without first D being fully trained and

qualified in valve, actuator, and accessory

installation, operation, and maintenance, and

D carefully reading and understanding the contents

of this manual. If you have any questions about

these instructions, contact your Emerson Process

Managementt sales office before proceeding.

Description

Type 655 and 655R actuators (figure 1) are

pressure-actuated, spring-and-diaphragm actuators

used in conjunction with various valves to provide

W0466-1 / IL

Figure 1. Type 655-ED Pressure-Reducing Valve

control for a wide variety of pressure regulation

applications. Type 655 actuators are used for

pressure-reducing service when mounted on

push-down-to-close valves such as the Design ED

and ET valves. Type 655R actuators are used for

pressure-relief service when mounted on

push-down-to-open valves such as the Design EDR

and ETR valves. Both types are self-operated and

direct-acting; that is, increasing pressure in the

diaphragm casing forces the actuator stem

downward, and decreasing the pressure allows the

actuator spring to lift the actuator stem upward.

Note

Neither Emerson, Emerson Process

Management, nor any of their affiliated

entities assumes responsibility for the

selection, use and maintenance of any

product. Responsibility for the

selection, use, and maintenance of any

product remains with the purchaser

and end-user.

Instruction Manual

Form 1292

July 2007

655 and 655R Actuators

1 2 3 4 5 6 ... 15 16

Inhaltsverzeichnis

Seite 1 - Type 655 and 655R Actuators

www.Fisher.comD100305X012Type 655 and 655R Actuators for Self-Operated ControlContentsIntroduction 1. . . . . . . . . . . . . . . . . . . . . . . . .

Seite 2

655 and 655R ActuatorsInstruction ManualForm 1292July 20071016. To start up and adjust the actuator, follow theprocedures outlined in the Startup sec

Seite 3

655 and 655R ActuatorsInstruction ManualForm 1292July 200711tightened to the proper load to preventleakage, but not crush the material.Perform the fol

Seite 4

655 and 655R ActuatorsInstruction ManualForm 1292July 200712Parts OrderingWhen corresponding with your Emerson ProcessManagement sales office about th

Seite 5

655 and 655R ActuatorsInstruction ManualForm 1292July 200713Figure 4. Type 655 Actuator30A8341-A/DOC30A8342-A/DOCSIZE 3A AND 4A ACTUATOR DIAPHRAGM CAS

Seite 6

655 and 655R ActuatorsInstruction ManualForm 1292July 200714Figure 6. Size 3B and 4B Top-MountedHandwheel Assembly38A1217-B/DOC APPLY LUBPARTS NOT

Seite 7

655 and 655R ActuatorsInstruction ManualForm 1292July 200715

Seite 8

655 and 655R ActuatorsInstruction ManualForm 1292July 200716Emerson Process Management Marshalltown, Iowa 50158 USACernay 68700 France Sao Paulo 0542

Seite 9

655 and 655R ActuatorsInstruction ManualForm 1292July 20072Table 1. SpecificationsActuator Sizes and Maximum Casing PressuresACTUATORMAXIMUM CASING PR

Seite 10 - 655 and 655R Actuators

655 and 655R ActuatorsInstruction ManualForm 1292July 20073CAUTIONTo avoid premature wear of thediaphragm due to debris in thepressure line to the dia

Seite 11

655 and 655R ActuatorsInstruction ManualForm 1292July 20074Table 2. Actuator Pressure-Setting Ranges(1)ACTUA-TORSPRING PARTPRESSUREREDUCTIONPRESSURERE

Seite 12

655 and 655R ActuatorsInstruction ManualForm 1292July 20075Table 3. Effective Diaphragm Area(1)ACTUA-TRAVEL DOWN FROM UPPER CASING STOP, mm (IN.)ACTUA

Seite 13

655 and 655R ActuatorsInstruction ManualForm 1292July 20076f. Stroke the actuator, and measure the stemmovement to check travel. If the movement ismo

Seite 14

655 and 655R ActuatorsInstruction ManualForm 1292July 200774. Slowly open the upstream shutoff valve.Startup For Pressure-Relief Service1. Open the

Seite 15

655 and 655R ActuatorsInstruction ManualForm 1292July 20078pressurized, even when the valve hasbeen removed from the pipeline.Process fluids may spray

Seite 16

655 and 655R ActuatorsInstruction ManualForm 1292July 20079diaphragm casing (key 5). Some Type 655Ractuators will have travel stops (key 13, not shown

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