Emerson Fisher HS, Инструкция по эксплуатации

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Fisher
™
HS Control Valve
Contents
Introduction 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Scope of Manual 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Description 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Packing Lubrication 3 . . . . . . . . . . . . . . . . . . . . . . . . . .
Packing Maintenance 4 . . . . . . . . . . . . . . . . . . . . . . . . .
Adding Packing Rings 6 . . . . . . . . . . . . . . . . . . . . .
Replacing Packing 7 . . . . . . . . . . . . . . . . . . . . . . . .
Trim Maintenance 9 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing Valve Plug, Seat Ring(s)
and Guide Bushings 9 . . . . . . . . . . . . . . . . . . . .
Lapping Metal Seats 12 . . . . . . . . . . . . . . . . . . . . .
Mounting Actuator and Adjusting Travel 13 . . . . . . . . .
Direct-Acting Valves 13 . . . . . . . . . . . . . . . . . . . . . . . .
Parts Ordering 14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 1. Fisher HS Control Valve with
Diaphragm Actuator
W6003-1
Introduction
Scope of Manual
This instruction manual provides installation, maintenance, and parts information for the NPS 1 through NPS 10 HS
control valves with ANSI CL900 through CL1500 pressure ratings. Refer to separate manuals for instructions on the
actuator and accessories.
Do not install, operate, or maintain a HS control 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 before proceeding.
Description
These valves are either single-port or double-port constructions. Direct-acting valves have push-down-to-close action.
If the valve is installed in a horizontal pipe run and the actuator is vertical above the valve, downward motion of the
valve stem will close the valve.
HS valve plugs are, top-and- bottom guided. With top-and-bottom guiding, a bushing in the bottom flange and in the
bonnet guide the valve plug. Maintenance procedures in this manual are valid for either single or double-port valves.
Instruction Manual
D100381X012
HS Valve
June 2019