Fisher 655 User Manual

Page of 16
www.Fisher.com
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
Management
t 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

Summary of Contents of user manual for Fisher 655

  • Page 1 Instruction Manual Form 1292 July 2007 655 and 655R Actuators Type 655 and 655R Actuators for Self-Operated Control Contents Introduction...
  • Page 2 Instruction Manual Form 1292 655 and 655R Actuators July 2007 Table 1. Specifications Actuator Sizes and Maximum Casing Pressures...
  • Page 3Instruction Manual Form 1292 July 2007 655 and 655R Actuators plate (key 4) against the upper diaphragm casing CAUTION (key...
  • Page 4 Instruction Manual Form 1292 655 and 655R Actuators July 2007 Table 2. Actuator Pressure-Setting Ranges (1) PRESSURE PRESSURE PRESSURE...
  • Page 5Instruction Manual Form 1292 July 2007 655 and 655R Actuators Table 3. Effective Diaphragm Area (1) ACTUA- TRAVEL DOWN FROM...
  • Page 6 Instruction Manual Form 1292 655 and 655R Actuators July 2007 f. Stroke the actuator, and measure the stem Note...
  • Page 7Instruction Manual Form 1292 July 2007 655 and 655R Actuators 4. Slowly open the upstream shutoff valve. Shutdown For both...
  • Page 8 Instruction Manual Form 1292 655 and 655R Actuators July 2007 pressurized, even when the valve has following procedure, make...
  • Page 9Instruction Manual Form 1292 July 2007 655 and 655R Actuators diaphragm casing (key 5). Some Type 655R Note actuators will...
  • Page 10 Instruction Manual Form 1292 655 and 655R Actuators July 2007 16. To start up and adjust the actuator, follow...
  • Page 11Instruction Manual Form 1292 July 2007 655 and 655R Actuators tightened to the proper load to prevent ensure the diaphragm...
  • Page 12 Instruction Manual Form 1292 655 and 655R Actuators July 2007 Parts Ordering Parts List When corresponding with your Emerson...
  • Page 13Instruction Manual Form 1292 July 2007 655 and 655R Actuators APPLY LUB PART NOT SHOWN : 31 28A1216-C/DOC Figure 5....
  • Page 14 Instruction Manual Form 1292 655 and 655R Actuators July 2007 BV8008-E/DOC Figure 7. Size 32 through 46 Top-Mounted Handwheel...
  • Page 15Instruction Manual Form 1292 July 2007 655 and 655R Actuators 15
  • Page 16 Instruction Manual Form 1292 655 and 655R Actuators July 2007 Fisher is a mark owned by Fisher Controls International...
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