Emerson 657 - Manual
Emerson 657 – Manual, read for free online in PDF format. We hope this helps you resolve any issues you may have. If you have further questions, please contact us through the contact form.
Table of Contents:
- Page 2 – Instruction Manual; Description; Note; Specifications
- Page 3 – Installation; WARNING; If the actuator and
- Page 4 – If a positioner is installed, or is to; Mounting the Actuator on the Valve; Lift or hoist the actuator onto the valve bonnet:; For size 87 actuators,; insert the cap screws; For all other size actuators,; screw the yoke
- Page 5 – not; connect the actuator stem to the valve; Discussion of Bench Set; Refer to table 1 for the effective diaphragm area.; Spring Verification; top
- Page 6 – first; detected at the; CAUTION
- Page 7 – Deadband Measurement
- Page 8 – Calculate the percent of deadband by:; Loading Connection; Maintenance; even when the valve has; Actuator Maintenance
- Page 9 – Actuator Disassembly; Actuator Assembly
- Page 10 – Top-Mounted Handwheel Assembly; Assembly for Top-Mounted Handwheel; For a handwheel assembly used on sizes 30
- Page 12 – lbf
- Page 15 – Casing-Mounted Adjustable Up Travel Stops; drive out the groove; Casing-Mounted Adjustable Down Travel Stops; Parts Ordering; Use only genuine Fisher
- Page 17 – Parts Kits; Kits for Side-Mounted Handwheels; Parts List
www.Fisher.com
D100306X012
Type 657 Diaphragm Actuator
Sizes 30-70 and 87
Contents
Introduction
1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Scope of Manual
1
. . . . . . . . . . . . . . . . . . . . . . . . .
Description
2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications
2
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation
3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mounting the Actuator on the Valve
4
. . . . . . . . .
Discussion of Bench Set
5
. . . . . . . . . . . . . . . . . . .
Spring Verification
5
. . . . . . . . . . . . . . . . . . . . . . . .
Installing the Stem Connector Assembly
6
. . . . .
Deadband Measurement
6
. . . . . . . . . . . . . . . . . .
Loading Connection
8
. . . . . . . . . . . . . . . . . . . . . . .
Maintenance
8
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Actuator Maintenance
8
. . . . . . . . . . . . . . . . . . . . .
Top-Mounted Handwheel Assembly
10
. . . . . . . .
Side-Mounted Handwheel for Sizes 34
through 60 Actuators
11
. . . . . . . . . . . . . . . . . .
Side-Mounted Handwheel for Sizes 70
and 87 Actuators
12
. . . . . . . . . . . . . . . . . . . . . .
Casing-Mounted Adjustable Travel Stops
14
. . .
Parts Ordering
15
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts Kits
17
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Kits for Side-Mounted Handwheels
17
. . . . . . . . .
Kits for Top-Mounted Handwheels
17
. . . . . . . . .
Parts List
17
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Actuator Assembly (figures 6, 7, or 8)
17
. . . . . .
Top-Mounted Handwheel (figures 9 or 10)
18
. .
Side-Mounted Handwheel (figure 11 or 13)
18
. .
Casing-Mounted Adjustable Up Travel Stops
(figures 14 or 15)
22
. . . . . . . . . . . . . . . . . . . . . .
Casing-Mounted Adjustable Down Travel Stops
(figure 16)
23
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Introduction
Scope of Manual
This instruction manual provides information on
installation, adjustment, maintenance, and parts
ordering for the Type 657 actuator in sizes 30
Figure 1. Type 657 or 657-4 Actuator Mounted
on an easy-e
R
Valve
W2174-2/IL
through 70 and size 87. The Type 657-4 actuator in
sizes 70 and 87 is also covered. Refer to separate
instruction manuals for information about the valve
positioner and other accessories used with these
actuators.
Do not install, operate, or maintain a Type 657
actuator 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.
Instruction Manual
Form 1900
February 2007
657 Actuator (30-70 and 87)
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Summary
657 Actuator (30-70 and 87) Instruction Manual Form 1900 February 2007 2 Table 1. Specifications SPECIFICATION (1) ACTUATOR SIZE SPECIFICATION (1) 30 34 40 45 46 50 60 70 (1) 87 (1) Nominal Effective Area cm 2 297 445 445 677 1006 677 1006 1419 1419 Nominal Effective Area Inch 2 46 69 69 105 156 105...
657 Actuator (30-70 and 87) Instruction Manual Form 1900February 2007 3 Figure 2. Schematic of Type 657 and 657-4 Actuators SPRING LIFTSSTEM UP AIR PUSHESSTEM DOWN STEM AF3833-AA0792-2/IL Installation Key number locations are shown in figures 6, 7, and 8, unless otherwise indicated. Also, refer tofi...
657 Actuator (30-70 and 87) Instruction Manual Form 1900 February 2007 4 Figure 4. Bench Set Adjustment SPRING ADJUSTER LOWER BENCH SETLOADING PRESSURE UPPER BENCH SETPRESSURE MARK VALVESTEM RATED VALVETRAVEL MEASURE MARK VALVESTEM HERE UPPER BENCH SETLOADING PRESSURE ACTUATORSTEM NOTES: THE LOWER P...
