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Emerson Fisher EWT User Manual
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Instruction Manual
D100399X012
EW Valve
July 2017
40
Figure 22. Fisher EWD Valve through NPS 12x6 with Optional Drain Plug
DETAIL OF MULTIPLE
PISTON RING FOR
CLASS IV SHUTOFF
RESTRICTED TRIM DETAIL
VALVE ASSEMBLY WITH
STANDARD CAGE
41A9275-B
57A3966‐A
30A9547‐G
FLOW DIRECTION
WHISPER TRIM
STD TRIM
CAVITROL TRIM
39
41
Table of Contents
Table of Contents
1
Introduction
1
Scope of Manual
1
Description
3
Specifications
3
Educational Services
4
Installation
4
Inverted Globe Valve Applications (Actuator below Valve)
6
Maintenance
7
Packing Lubrication
8
Packing Maintenance
10
Replacing Packing
10
Trim Maintenance
14
Trim Removal
15
Lapping Metal Seats
16
Valve Plug Maintenance
17
Trim Replacement
19
Retrofit: Installing C-Seal Trim
20
Replacement of Installed C-Seal Trim
24
Trim Removal (C-Seal Constructions)
24
Lapping Metal Seats (C-Seal Constructions)
25
Remachining Metal Seats (C-Seal Constructions)
25
Trim Replacement (C-Seal Constructions)
26
ENVIRO-Sealt Bellows Seal Bonnet
27
Parts Ordering
32
Parts Kits
33
Parts List
36
D100399X012 July
47
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Emerson Fisher EWT Specifications
General
Brand
Emerson
Model
Fisher EWT
Category
Control Unit
Language
English
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