Fisher ET User Manual

www.Fisher.com
D100398X012
Design ET and EAT easy-e
R
Valves
Class 125 through 600
Contents
Introduction 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Scope of Manual 1. . . . . . . . . . . . . . . . . . . . . . . . . . .
Description 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Packing Lubrication 4. . . . . . . . . . . . . . . . . . . . . . . .
Packing Maintenance 5. . . . . . . . . . . . . . . . . . . . . .
Replacing Packing 5. . . . . . . . . . . . . . . . . . . . . . . .
Trim Maintenance 9. . . . . . . . . . . . . . . . . . . . . . . . . .
Disassembly 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lapping Metal Seats 10. . . . . . . . . . . . . . . . . . . . .
Valve Plug Maintenance 10. . . . . . . . . . . . . . . . . .
Assembly 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENVIRO-SEAL

Bellows Seal Bonnet 13. . . . . . .
Replacing a Plain or Extension Bonnet with an
ENVIRO-SEAL Bellows Seal Bonnet
(Stem/Bellows Assembly) 13. . . . . . . . . . . . . .
Replacement of an Installed ENVIRO-SEAL
Bellows Seal Bonnet (Stem/Bellows
Assembly) 15. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Purging the ENVIRO-SEAL Bellows
Seal Bonnet 16. . . . . . . . . . . . . . . . . . . . . . . . . .
Parts Ordering 16. . . . . . . . . . . . . . . . . . . . . . . . . .
Parts Kits 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts List 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Introduction
Scope of Manual
This instruction manual includes installation,
maintenance, and parts information for 1- through
8-inch Design ET valves, and 1- through 6-inch
Design EAT valves, through Class 600 ratings. Refer
Figure 1. Design ET Control Valve with Type 667 Actuator
W1916-3 / IL
to separate manuals for instructions covering the
actuator and accessories.
No person may install, operate, or maintain a Design
ET valve without first (1) being fully trained and
qualified in valve, actuator, and accessory
installation, operation, and maintenance, and (2)
carefully reading and understanding the contents of
this manual. If you have any questions about these
instructions, contact your Fisher sales office before
proceeding.
Instruction Manual
Form 5081
June 2002
ET Valve

Fisher ET Specifications

General

Brand	Fisher
Model	ET
Category	Control Unit
Language	English