Fisher® EZ easy-e Control Valve0 pages

Instruction Manual

EZ Valve

D100401X012

June 2014

Fisherr EZ easy-et Control Valve
Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Scope of Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Educational Services . . . . . . . . . . . . . . . . . . . . . . . . . 2
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Packing Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Packing Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . 6
Replacing Packing . . . . . . . . . . . . . . . . . . . . . . . . 9
Trim Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Lapping Metal Seats on Valves with Plain
and Extension Bonnets . . . . . . . . . . . . . . . . 15
Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
ENVIRO-SEALt Bellows Seal and Bonnet . . . . . . . 20
Replacing a Plain or Extension Bonnet
with an ENVIRO-SEAL Bellows Seal
(Stem/Bellows Assembly) and Bonnet . . . . 20
Replacing an Installed ENVIRO-SEAL
Bellows Seal (Stem/Bellows Assembly) . . . 22
Purging the ENVIRO-SEAL
Bellows Seal Bonnet . . . . . . . . . . . . . . . . . . . 23
Parts Ordering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Parts Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Figure 1. Fisher EZ Valve with 657 Actuator and
DVC6000 Digital Valve Controller

W8120A-1

Introduction
Scope of Manual
This instruction manual includes installation, maintenance, and parts information for NPS 1/2 through 4 Fisher EZ
valves through CL600 ratings. Refer to separate manuals for instructions covering the actuator and accessories.
Do not install, operate, or maintain an EZ valve without being fully trained and qualified in valve, actuator, and
accessory installation, operation, and maintenance. To avoid personal injury or property damage, it is important to
carefully read, understand, and follow all the contents of this manual, including all safety cautions and warnings. If you
have any questions about these instructions, contact your Emerson Process Management sales office before
proceeding.

Description
EZ valves (figure 1) are globe-style with integral end connections, post guiding, and quick-change trim. These valves
are used in chemical or hydrocarbon processing applications or in applications that require control of nonlubricating,
viscous, or other hard-to-handle fluids.

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