Fisher EZ easy-e User Manual

www.Fisher.com
Fisher
™
EZ easy‐e
™
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 24...................
Parts Ordering 24...............................
Parts Kits 24...................................
Parts List 27...................................
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 sales office
or Local Business Partner 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.
Instruction Manual
D100401X012
EZ Valve
November 2017

Fisher EZ easy-e Specifications

General

Communication Protocol	HART
Flow Characteristic	Linear, Equal Percentage
Actuator Type	Pneumatic
Materials	Stainless Steel
Input Voltage	24 VDC or 120 VAC
Output Signal	4-20 mA
Enclosure Rating	NEMA 4X
Valve Type	Globe valve

Summary

Introduction

Scope of Manual

Describes the manual's scope and intended audience.

Description

Details the valve's design, features, and applications.

Specifications

Lists key technical specifications and ratings of the valve.

Educational Services

Provides contact information for training courses.

Installation

Covers procedures and safety for installing the valve.

Maintenance

Packing Lubrication

Instructions for lubricating the valve packing.

Packing Maintenance

Procedures for inspecting and maintaining packing.

Replacing Packing

Step-by-step guide for replacing valve packing.

Replacing Installed ENVIRO-SEAL Bellows Seal

How to replace an installed ENVIRO-SEAL bellows seal.

Trim Maintenance

Disassembly

Steps for disassembling the valve trim components.

Lapping Metal Seats

Procedure for improving shutoff by lapping metal seats.

Assembly - Plain or Extension Bonnets

Steps for assembling plain or extension bonnets.

Assembly - Overtravel (EZ-OVT) Trim

Steps for assembling Overtravel (EZ-OVT) trim.

Assembly - ENVIRO-SEAL Bellows Seal Bonnets

Steps for assembling ENVIRO-SEAL bonnets.

Purging and Parts Information

Purging the ENVIRO-SEAL Bellows Seal Bonnet

Steps for purging the ENVIRO-SEAL bonnet.

Parts Ordering

Information on ordering replacement parts and kits.

Bonnet Parts List

Specific parts for the bonnet assembly.

Valve Body Parts List

Specific parts for the valve body assembly.