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Instruction Manual

D103175X012February 2009

GX Valve and Actuator

GX Control Valve and Actuator System - 14722 Fisher GX Control Valve and Actuator System

Contents

Introduction1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Scope of Manual1. . . . . . . . . . . . . . . . . . . . . . . . . . Description1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Specifications2. . . . . . . . . . . . . . . . . . . . . . . . . . . . Valve Installation2. . . . . . . . . . . . . . . . . . . . . . . . . . . Maintenance3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Actuator Maintenance4. . . . . . . . . . . . . . . . . . . . . FIELDVUE DVC2000 Digital ValveController Mounting9. . . . . . . . . . . . . . . . . . . . . Packing Maintenance11. . . . . . . . . . . . . . . . . . . . . Replacing Packing11. . . . . . . . . . . . . . . . . . . . . . . Valve Trim Maintenance15. . . . . . . . . . . . . . . . . . Bellows Maintenance18. . . . . . . . . . . . . . . . . . . . . Handwheel Operation20. . . . . . . . . . . . . . . . . . . . . . Travel Stop Operation20. . . . . . . . . . . . . . . . . . . . . Parts Ordering34. . . . . . . . . . . . . . . . . . . . . . . . . . . . Parts Kits35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Parts List36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
W8861 Figure 1. Fisher GX Control Valve, Actuator, andFIELDVUE

Introduction

DVC2000 Series Digital Valve Controller

Description Scope of Manual

The GX is a compact, state-of-the-art control valveand actuator system, designed to control a widerange of process gases, vapors, and fluids.The GX is rugged, reliable, and easy to select. Itrequires no actuator sizing -- the actuator selectionis automatic once the valve body construction is selected.The GX meets the requirements of both EN andASME standards. It is available with a complete accessory package, including the FIELDVUEDVC2000 Series integrated digital valve controller. This instruction manual includes installation,maintenance, and parts information for the Fisher GX control valve and actuator system.Do not install, operate or maintain a GX valve andactuator system without first being fully trained andqualified in valve, actuator and accessoryinstallation, operation and maintenance, and carefully reading and understanding the contents ofthis manual. If you have any questions about these instructions contact your Emerson ProcessManagement sales office before proceeding.
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