Emerson Fisher NPS 8 CHP, Инструкция по эксплуатации

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Fisher
™
NPS 8 CHP Control Valve
Contents
Introduction 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Scope of Manual 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Description 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lifting Guidelines 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Packing Maintenance 6 . . . . . . . . . . . . . . . . . . . . . . . . .
Adding Packing Rings 7 . . . . . . . . . . . . . . . . . . . . .
Replacing Packing 7 . . . . . . . . . . . . . . . . . . . . . . . .
Trim Removal 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Valve Plug Maintenance 10 . . . . . . . . . . . . . . . . . . . . .
Lapping Seats 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Trim Replacement 11 . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts Ordering 12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts List 13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 1. Fisher CHP NPS 8 Control Valve
X1365
Introduction
Scope of Manual
This instruction manual includes installation, maintenance, and parts information for the Fisher CHP control valve.
Refer to separate manuals for instructions covering the actuator, positioner, and accessories.
Do not install, operate, or maintain CHP valves 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.
Instruction Manual
D104197X012
NPS 8 CHP Valve
September 2016