Fisher EHD, EHS, and EHT Valves NPS 1-1/2x1 through NPS 8x6 Instruction manual
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Instruction Manual
D100394X012
EH (1-1/2x1 through 8x6)
July 2017
Fisher
™
EHD, EHS, and EHT Valves
NPS 1-1/2x1 through NPS 8x6
Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Scope of Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Educational Services
Installation
. . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Packing Lubrication
Packing Maintenance
. . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . .
Replacing Packing
Trim Removal
. . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Valve Plug Maintenance
Lapping Seats
. . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Trim Replacement . . . . . . . . . . . . . . . . . . . . . . . . . .
Retrofit: Installing C‐seal Trim . . . . . . . . . . . . . . . .
Replacement of Installed C‐seal Trim . . . . . . . . . . .
Remachining Metal Seats
(C‐seal Constructions) . . . . . . . . . . . . . . . . .
Trim Removal (C‐seal Constructions) . . . . . . .
Lapping Metal Seats (C‐seal Constructions) . .
Trim Replacement (C‐seal Constructions)
Parts Ordering
. . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1
Figure 1. Fisher EH Valve with 657 Actuator
W3387
Introduction
Scope of Manual
This instruction manual includes installation, maintenance, and parts information for the Fisher EHD, EHS, and EHT control valves in NPS 1-1/2 x 1 through NPS 8x6. Refer to separate manuals for instructions covering the actuator, positioner, ENVIRO‐SEAL ™ packing, HIGH‐SEAL packing, and accessories.
Do not install, operate, or maintain EHD, EHS, or EHT 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 sales office or Local Business Partner before proceeding.
Unless otherwise noted, all NACE references are to NACE MR0175‐2002.
www.Fisher.com
EH (1-1/2x1 through 8x6)
July 2017
Instruction Manual
D100394X012
Table 1. Specifications
End Connection Styles
Buttwelding: All available ASME B16.25 schedules that are compatible with ASME B16.34
pressure/temperature ratings
Flanged: CL2500 J ring‐type joint (RTJ) or
J raised‐face (RF) flanges according to ASME B16.5
Socket Welding: Consistent with ASME B16.11
Flow Characteristic
Standard Cage: J Equal percentage, J modified equal percentage (2) , J or linear
Cavitrol ™ III or Whisper Trim ™ III Cage: Linear
Maximum Inlet Pressure (1)
Buttwelding: Consistent with CL2500 pressure‐temperature ratings per ASME B16.34
Flanged: Consistent with CL2500 pressure‐temperature ratings per ASME B16.34
Socket Welding: Consistent with CL2500 pressure‐temperature ratings per ASME B16.34
Flow Direction
EHD or EHT: Flow down, except with either a Whisper
Trim III cage or a valve plug with diverter cone, both of which are flow up
EHS: Flow up, except flow down with Cavitrol III cage
Approximate Weights (Valve Body and Bonnet
Assemblies)
Shutoff Classifications
C‐seal trim: High‐temperature, Class V.
TSO (Tight Shutoff) trim:
Additional Specifications
For specifications such as materials, valve plug travels, and port, yoke boss, and stem diameters, see the Parts List section
1. The pressure or temperature limits in this manual and any applicable standard limitations should not be exceeded.
2. Modified equal percentage characteristic is equal‐percentage for the first 90% of travel, then quick‐opening for additional capacity.
Table 2. Shutoff Classifications per ANSI/FCI 70‐2 and IEC 60534‐4
Valve
Valve Size,
NPS
3x2
ANSI/FCI Leakage Class
EHD
3, 4x3,
4, 6x4
6, 8x6
II
II—Standard
III—Optional (1)
III—Standard
IV—Optional (1)
EHS w/Cavitrol III, or
EHT w/Cavitrol III
All V (1)
EHS, EHT,
EHS w/Micro‐Form or
EHS w/Micro Flute
All
IV—Standard
V—Optional (1)
EHT w/ PEEK Anti‐Extrusion
Rings
3 to 6 V to 600
1. O‐ring seat ring construction recommended for this shutoff classification; for temperatures below 232 _ C (450 _ F) only.
_ F (316 _ C)
Description
valve plug action. The EHD and EHT valves use balanced valve plugs.
The EHS valve uses an unbalanced valve plug. To provide a seal between the cage and a balanced valve plug, the EHD valve plug uses piston rings; the EHT valve plug uses a pressure‐assisted seal ring. A Whisper Trim cage can be used with an EHD, EHS, or EHT valve plug. A Cavitrol III cage can be used with an EHS or EHT valve plug.
C‐seal trim is available for EHD valves, CL2500, in sizes 4, 6, 6x4, and 8x6.
With C‐seal trim, a balanced valve can achieve high‐temperature, Class V shutoff. Because the C‐seal plug seal is formed from metal (N07718 nickel alloy) rather than an elastomer, a valve equipped with the C‐seal trim can be
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Instruction Manual
D100394X012
EH (1-1/2x1 through 8x6)
July 2017 applied in processes with a fluid temperature of up to 593 _ C (1100 _ F), provided other material limits are not exceeded. Contact your Emerson sales office or Local Business Partner for information.
Specifications
Specifications for the EHD, EHS, and EHT valves are shown in table 1.
Educational Services
For information on available courses for the Fisher EH valve, as well as a variety of other products, contact:
Emerson Automation Solutions
Educational Services - Registration
Phone: 1-641-754-3771 or 1-800-338-8158
E-mail: [email protected]
emerson.com/fishervalvetraining
Table 3. Additional Shutoff Classification per ANSI/FCI 70‐2 and IEC 60534‐4
Valve (Class) Valve Size, NPS Port Diameter, Inches Cage Style
ANSI/FCI Leakage
Class
EHD
(CL2500)
4
6x4
6
8x6
2.875
4.375
Equal Percentage, Modified Equal Percentage,
Linear (std. cage),
Linear (Whisper III, A1, B3, C3)
Linear (Cavitrol III, 2‐stage)
Equal Percentage, Modified Equal Percentage,
Linear (std. cage),
Linear (Whisper III, A1, B3, C3, D3)
V (for port diameters from 2.875
through 7‐inch with optional C‐seal trim)
6
8x6
4.375
Linear (Cavitrol III, 2‐ and 3‐stage)
Table 4. TSO (Tight Shutoff) Leakage Class per ANSI/FCI 70‐2 and IEC 60534‐4
Leakage Class Maximum Leakage Test Medium Test Pressure
TSO (Tight Shutoff)
Valves with TSO trim are factory tested to a more stringent Emerson Automation
Solutions test requirement of no leakage at time of shipment.
1. Specify service Δ P when ordering.
Water Service Δ P (1)
Table 5. TSO Shutoff Availability
VALVE
EHS, EHT
CONSTRUCTION
Cavitrol III trim. Replaceable, protected soft seat
ANSI/FCI Leakage Class
V
LEAKAGE CLASS
Standard
TSO
Optional
‐ ‐ ‐
Table 6. Approximate Weights (Valve Body and Bonnet Assemblies)
CL2500
Kilograms VALVE
SIZE,
NPS
1-1/2 x 1
Flg
‐ ‐ ‐
SWE
&
BWE
46
4
6x4
6
8x6
2x1
3x2
3
4x3
338
526
785
955
78
161
223
265
243
257
544
558
47
94
163
162
Flg
‐ ‐ ‐
173
355
492
585
745
1160
1731
2106
Pounds
SWE
&
BWE
101
104
207
359
357
536
567
1199
1231
3
4
EH (1-1/2x1 through 8x6)
July 2017
Instruction Manual
D100394X012
Installation
WARNING
Always wear protective gloves, clothing, and eyewear when performing any installation operations to avoid personal injury.
To avoid personal injury or property damage resulting from the sudden release of pressure, do not install the valve assembly where service conditions could exceed the limits given in this manual or on the appropriate nameplates. Use pressure‐relieving devices as required by government or accepted industry codes and good engineering practices.
Check with your process or safety engineer for any additional measures that must be taken to protect against process media.
If installing into an existing application, also refer to the WARNING at the beginning of the Maintenance section in this instruction manual.
CAUTION
Responsibility for the safety of process media and compatibility of valve materials with process media rests solely with the purchaser and end‐user. The valve configuration and construction materials meet particular pressure, temperature, pressure drop, and controlled fluid conditions specified in the customer's order. Because some body/trim material combinations are limited in their pressure drop and temperature range capabilities (especially due to differences in thermal expansion rates), do not apply any other conditions to the valve without first contacting your Emerson sales office or Local Business Partner.
CAUTION
If hoisting the valve, use a nylon sling to protect the painted surfaces. Carefully position the sling to prevent damage to the tubing or any accessories. Use adequately sized hoists and chains or slings to handle the valve and take precautions to
weights.
WARNING
Personal injury could result from packing leakage. Valve packing was tightened prior to shipment; however some readjustment will be required to meet specific service conditions. Check with your process or safety engineer for any additional measures that must be taken to protect against process media.
1. Before installing the valve, inspect it to ensure that the valve body cavity is free of foreign material.
2. Clean out all pipelines to remove scale, welding slag, and other foreign materials before installing the valve.
Note
If the valve being installed has small internal flow passages, such as with Whisper Trim III or Cavitrol III cages, consideration should be given to installing an upstream strainer to prevent the lodging of particles in these passages. This is especially important if the pipeline cannot be thoroughly cleaned or if the flowing medium is not clean.
Instruction Manual
D100394X012
EH (1-1/2x1 through 8x6)
July 2017
3. The control valve must be installed with the actuator vertical above the valve body for proper operation. Flow
body.
4. Use accepted piping and welding practices when installing the valve in the line. For welding end valve bodies, completely disassemble the valve removing all trim parts before welding the valve body in the line. For flanged valve bodies, use suitable gaskets between the valve body flanges and pipeline flanges.
Figure 2. Lubricator and Lubricator/Isolating Valve
14
LUBRICATOR
14
27
10A9421‐A
AJ5428‐D
A0832‐2
LUBRICATOR/ISOLATING VALVE
CAUTION
Depending on valve body materials used, post‐weld heat treating might be needed. Post‐weld heat treatment can damage internal elastomeric, plastic, and metal parts. Shrunk‐fit pieces and threaded connections might loosen.
If post‐weld heat treating is needed, remove all trim parts to avoid any damage to internal elastomeric, plastic, and metal parts. Contact your Emerson sales office or Local Business Partner for additional information.
5. Install a three‐valve bypass around the valve if continuous operation is required during maintenance.
6. If the actuator and valve body are shipped separately, refer to the actuator mounting procedure in the appropriate actuator instruction manual.
7. If the valve was shipped without packing installed in the packing box, install the packing before putting the valve into service. Refer to instructions given in the Packing Maintenance procedure.
Valves with ENVIRO‐SEAL live‐loaded packing or HIGH‐SEAL Heavy‐Duty live‐loaded packing will not require this initial re‐adjustment. See the Fisher instruction manuals titled ENVIRO‐SEAL Packing System for Sliding‐Stem Valves
(D101642X012) or HIGH‐SEAL Live‐Loaded Packing System ( D101453X012 ) (as appropriate) for packing instructions.
If you wish to convert your present packing arrangement to ENVIRO‐SEAL packing, refer to the retrofit kits listed in the parts kit sub‐section near the end of this manual.
5
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EH (1-1/2x1 through 8x6)
July 2017
Instruction Manual
D100394X012
Maintenance
Valve parts are subject to normal wear and must be inspected and replaced as necessary. Inspection and maintenance frequency depends on the severity of service conditions. This section includes instructions for packing lubrication, packing maintenance, adding packing rings, replacing packing, trim removal, valve plug maintenance, lapping seats, and trim replacement. All maintenance operations can be performed with the valve in the line.
WARNING
Avoid personal injury from sudden release of process pressure. Before performing any maintenance operations:
D Do not remove the actuator from the valve while the valve is still pressurized.
D Always wear protective gloves, clothing, and eyewear when performing any maintenance operations to avoid personal injury.
D Disconnect any operating lines providing air pressure, electric power, or a control signal to the actuator. Be sure the actuator cannot suddenly open or close the valve.
D Use bypass valves or completely shut off the process to isolate the valve from process pressure. Relieve process pressure on both sides of the valve. Drain the process media from both sides of the valve.
D Vent the power actuator loading pressure and relieve any actuator spring precompression.
D Use lock‐out procedures to be sure that the above measures stay in effect while you work on the equipment.
D The valve packing box may contain process fluids that are pressurized, even when the valve has been removed from the pipeline.
Process fluids may spray out under pressure when removing the packing hardware or packing rings, or when loosening the packing box pipe plug.
D Check with your process or safety engineer for any additional measures that must be taken to protect against process media.
Table 7. Recommended Torque for Packing Flange Nuts mm
12.7
19.1
25.4
31.8
STEM
DIAMETER
Inches
1/2
3/4
1
1‐1/4
VALVE
BODY
RATING(1)
CL1500
CL2500
CL1500
CL2500
CL1500
CL2500
CL1500
CL2500
1. Includes intermediate class ratings.
41
52
61
68
81
Min
15
18
34
N S m
Max
22
24
50
61
77
91
102
122
TORQUE
30
38
45
50
60
Min
11
13
25
Lbf S Ft
45
57
67
75
90
Max
16
18
37
Note
Whenever a gasket seal is disturbed by removing or shifting gasketed parts, a new gasket should be installed upon reassembly.
This is necessary to ensure a good gasket seal.
Note
Packing System for Sliding‐Stem Valves ( D101642X012 ) for packing instructions.
If the valve has HIGH‐SEAL heavy‐duty live‐loaded packing installed, see Fisher instruction manual entitled HIGH‐SEAL Live‐Loaded
Packing System ( D101453X012 ) for packing instructions.
Instruction Manual
D100394X012
EH (1-1/2x1 through 8x6)
July 2017
WARNING
Personal injury could result from packing leakage. Valve packing was tightened prior to shipment; however some readjustment will be required to meet specific service conditions. Check with your process or safety engineer for any additional measures that must be taken to protect against process media.
Packing Lubrication
CAUTION
Do not lubricate graphite packing. Graphite packing is self-lubricated. Additional lubrication may result in slip-stick movement of the valve.
WARNING
To avoid personal injury or property damage resulting from fire or explosion, do not lubricate packing used in oxygen service or in processes with temperatures over 260 _ C (500 _ F).
silicon‐base lubricant be used. To operate the lubricator, simply turn the cap screw clockwise to force lubricant into the packing box. The lubricator/isolating valve operates the same way except the isolating valve must first be opened and then closed after lubrication is completed.
Packing Maintenance
If leakage continues, replace the packing by following the numbered steps presented in the Replacing Packing procedure.
CAUTION
may result, resulting in keeping the valve from stroking fully and not attaining proper seat load.
If there is undesirable packing leakage with other than spring‐loaded PTFE V‐ring packing, first try to limit the leakage
friction may result. If leakage continues, replace the packing by following the numbered steps presented in the
Replacing Packing procedure.
If the packing is relatively new and tight on the valve plug stem, and if tightening the packing flange nuts does not stop the leakage, it is possible that the stem is worn or nicked so that a seal cannot be made. The surface finish of a stem is critical for making a good packing seal. If the leakage comes from the outside diameter of the packing, it is possible that the leakage is caused by nicks or scratches around the packing box wall. While replacing the packing according to the Replacing Packing procedure, inspect the valve plug stem and packing box wall for nicks or scratches.
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EH (1-1/2x1 through 8x6)
July 2017
Instruction Manual
D100394X012
Replacing Packing
Key numbers referred to in this procedure are shown in figure 16 unless otherwise indicated.
1. Isolate the control valve from the line pressure, release pressure from both sides of the valve body, and drain the process media from both sides of the valve.
Remove the cap screws in the stem connector, and separate the two halves of the stem connector. Then exhaust all actuator pressure, if any was applied, and disconnect the actuator supply and any leakoff piping.
2. Remove either the yoke locknut (key 15) or the hex nuts (key 26), and remove the actuator from the bonnet (key 1).
or 20). Remove any travel indicator disk and stem locknuts from the valve plug stem threads.
Table 8. Torque for Body‐to‐Bonnet Bolting Using Anti‐Seize Lubricant(1)
VALVE
SIZE,
NPS
1, 1-1/2 x 1, 2x1
2, 3x2
3, 4x3
4, 6x4
6, 8x6
VALVE
BODY
RATING
CL1500
CL2500
CL1500
CL2500
CL1500
CL2500
CL1500
CL2500
CL1500
CL2500
N S m
B7, B16, BD and 660 Studs
163
258
258
380
556
786
786
1058
1383
2807
TORQUE
B8 and B8M Studs
Lbf S Ft
B7, B16, BD and 660 Studs
122
195
195
285
120
190
190
280
420
597
597
800
1044
2102
410
580
580
780
1020
2070
1. For other materials, contact your Emerson sales office or Local Business Partner for torques.
B8 and B8M Studs
90
140
140
210
310
440
440
590
770
1550
CAUTION
from the bonnet after being lifted part way out. The parts are also easier to handle separately.
Use care to avoid damaging gasket sealing surfaces.
handling.
WARNING
If the cage adheres to the bonnet as the bonnet is lifted, secure the cage to the bonnet so that it will not cause personal injury or equipment damage should it fall unexpectedly.
and stem assembly starts to lift with the bonnet, use a brass or lead hammer on the end of the stem and tap it back down. Set the bonnet on a cardboard or wooden surface to prevent damage to the bonnet gasket surface.
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Figure 3. Live‐Loaded Packing
EH (1-1/2x1 through 8x6)
July 2017
39B4153‐A
39B4612/A
Typical HIGH‐SEAL ULF Packing System
Typical ENVIRO‐SEAL Packing System with Graphite ULF Packing
A6297‐1
Typical ENVIRO‐SEAL Packing System with PTFE Packing
213
200
212
201
215
216
207
209
211
A6722
Typical ENVIRO‐SEAL Packing System with Duplex Packing
217
207
207
214
207
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July 2017
Instruction Manual
D100394X012
Figure 4. Packing Arrangements
12A8160‐A
PTFE V‐RING
SINGLE PACKING
UPPER WIPER (KEY 12)
PACKING FOLLOWER
(KEY 13)
FEMALE ADAPTOR
(KEY 32)
V‐RING (KEY 7)
MALE ADAPTOR
(KEY 31)
WASHER (KEY 10)
KEY 6
1
SPRING (KEY 8)
PACKING BOX RING
(KEY 11)
LOWER WIPER
(KEY 30)
3
PACKING FOLLOWER
(KEY 13)
GRAPHITE RIBBON
PACKING RING (KEY 7)
GRAPHITE FILAMENT
PACKING RING (KEY 7)
2
LANTERN RING
(KEY 8)
PACKING BOX RING
(KEY 11)
14A3412‐C
GRAPHITE RIBBON AND FILAMENT
SINGLE PACKING
UPPER WIPER (KEY 12)
PACKING FOLLOWER
(KEY 13)
FEMALE ADAPTOR
(KEY 32)
V‐RING (KEY 7)
MALE ADAPTOR
(KEY 31)
KEY 6
1
PACKING FOLLOWER
(KEY 13)
GRAPHITE RIBBON
PACKING RING (KEY 7)
GRAPHITE FILAMENT
PACKING RING (KEY 7)
2
LANTERN RING
(KEY 8)
UPPER WIPER (KEY 12)
PACKING FOLLOWER
(KEY 13)
PACKING RING
(KEY 7)
LANTERN RING
(KEY 8)
LANTERN RING
(KEY 8)
1
PACKING BOX RING
(KEY 11)
PACKING BOX RING
(KEY 11)
12A7839‐A
Sht 1
PTFE V‐RING
DOUBLE PACKING
2
3
12A8163‐A
LOWER WIPER
(KEY 30)
3
1
C0637‐1
NOTES:
0.102 mm (0.004 INCH) THICK SACRIFICIAL ZINC WASHERS.
USE ONLY ONE BELOW EACH GRAPHITE RIBBON RING.
14A3414‐C
GRAPHITE RIBBON AND FILAMENT
DOUBLE PACKING
PTFE/COMPOSITION
DOUBLE PACKING
HAS THE APPEARANCE OF A WOVEN OR BRAIDED RING.
INCLUDED IN KEY 6 PACKING SET.
PACKING BOX RING
(KEY 11)
CAUTION
All residual gasket material must be removed from the cage gasket surfaces. If the gasket surfaces are scored or damaged during this process, smooth them by hand sanding with 360 grit paper using long, sweeping strokes. Failure to remove all residual gasket material and/or burrs from the gasket surfaces will result in leakage.
6. Clean all gasket surfaces with a good quality degreaser. Remove all residual tin or silver from all gasket surfaces.
7. Cover the opening in the valve body to protect the gasket surface and to prevent foreign material from getting into the valve body cavity.
8. Remove the packing flange nuts (key 5), packing flange (key 3), upper wiper (key 12), and packing follower (key 13,
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Instruction Manual
D100394X012
EH (1-1/2x1 through 8x6)
July 2017 rounded rod or other tool that will not scratch the packing box wall. For extension bonnets, also remove the baffle
(key 2) and retaining ring (key 35).
9. Clean the packing box and the following metal packing parts: packing follower (key 13), packing box ring (key 11),
10. Inspect the valve stem threads for any sharp edges that might cut the packing. A whetstone or emery cloth may be used to smooth the threads if necessary.
11. Remove the protective covering from the valve body cavity. Using new top and bottom cage gaskets (key 11,
recesses of the seat ring retainer. Turn the cage clockwise until the lugs contact the seat ring retainer. Install the
plug, then slide the bonnet over the stem and onto the studs (key 13, figure 18, 19, or 20).
Note
threads.
The proper bolting procedures in step 12 include‐‐but are not limited to‐‐ensuring that the bonnet stud threads are clean,
Belleville washers (if present) are installed in the correct orientation, and that the hex nuts are evenly tightened to the specified torque values.
CAUTION
crushing, cage diameter reduction, and/or bonnet deformation. Cheater bars or slug wrenches should not be used for this procedure.
Hot torquing is not recommended.
Note
Stud(s) and nut(s) should be installed such that the manufacturer's trademark and material grade marking is visible, allowing easy comparison to the materials selected and documented in the Emerson/Fisher serial card provided with this product.
WARNING
Personal injury or damage to equipment could occur if improper stud and nut materials or parts are used. Do not operate or assemble this product with stud(s) and nut(s) that are not approved by Emerson/Fisher engineering and/or listed on the serial card provided with this product. Use of unapproved materials and parts could lead to stresses exceeding the design or code limits intended for this particular service. Install studs with the material grade and manufacturer's identification mark visible. Contact your Emerson sales office or Local Business Partner immediately if a discrepancy between actual parts and approved parts is suspected.
necessary if new factory prelubricated hex nuts are used). Replace the flat washers (key 29,
)
hex nuts but do not tighten them.
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EH (1-1/2x1 through 8x6)
July 2017
Instruction Manual
D100394X012
When all nuts are tightened to that torque value, increase the torque by one fourth of the specified nominal torque and repeat the crisscross pattern. Repeat this procedure until all nuts are tightened to the specified nominal value.
Apply the final torque value again and, if any nut still turns, tighten every nut again.
Figure 5. Installing Graphite Ribbon/Filament Packing Rings One at a Time
VALVE STEM
PACKING FOLLOWER
BONNET
TOP OF PACKING
RING EVEN WITH
BOTTOM OF
ENTRANCE
CHAMFER
A2207‐2 INSTALLING
FIRST PACKING RING
INSTALLING
SECOND PACKING RING
Note
If graphite ribbon/filament packing rings are used, special procedures must be observed to prevent entrapping air between the rings. Add the rings one at a time without forcing them below the chamfer of the packing box entrance chamber. As each
desired, packing parts may be pre‐lubricated with a silicon base grease for easier installation. Slip a smooth‐edged pipe over the valve stem, and gently tamp each soft packing part into the packing box, being sure that air is not trapped between adjacent soft parts. For a valve with extension bonnet, also install the baffle and retaining rings
(keys 2 and 35).
14. Slide the packing follower, wiper, and packing flange into position. Lubricate the packing flange studs (key 4) and the faces of the packing flange nuts (key 5). Replace the packing flange nuts.
For spring‐loaded PTFE V‐ring packing, tighten the packing flange nuts until the shoulder on the packing follower (key
13) contacts the bonnet.
For other packing types,
tighten the packing flange nuts to the maximum recommended torque shown in table 7.
For ENVIRO‐SEAL or HIGH‐SEAL live‐loaded packing, refer to the note at the beginning of the Maintenance section.
15. Mount the actuator on the valve body assembly, and reconnect the actuator and valve plug stems according to the procedures in the appropriate actuator instruction manual.
Trim Removal
For C‐seal construction, see the appropriate C‐seal sections in this instruction manual.
Trim removal and replacement requires the use of a seat ring retainer tool (key 25). If specifically ordered, a tool is supplied with a valve; but, the tool can also be ordered separately by referencing the tool part number in the Parts List.
If desired, a tool can also be machined for a valve of specific size and valve class using the dimensions shown in figure
(120,000 psi). Using a tool of lower strength material may result in damage to the seat ring retainer or valve body threads.
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EH (1-1/2x1 through 8x6)
July 2017
figure 20 for the EHT valve except where indicated.
1. Remove the actuator and bonnet by following steps 1 through 4 of the Replacing Packing procedure. Observe all warnings and cautions.
2. Lift the valve stem and attached valve plug out of the valve body. If the valve plug is to be reused, tape or otherwise protect the valve plug stem and the valve plug seating surface to prevent scratches.
3. Lift out the cage (key 2) and the top and bottom cage gaskets (key 11). For a valve with Cavitrol III two‐or
Constructions other than TSO trim
1. Use the seat ring retainer tool (figure 9) to remove the seat ring retainer (key 7) as follows:
a. Insert the tool into the valve body. Be certain the tool lugs are engaged in the corresponding recesses in the retainer.
Connect the torque wrench to an extension if necessary. The tool or extension must snugly fit the square hole in
the seat ring retainer tool. Refer to figure 9 for square hole sizes.
c. Insert the tool or extension into the square hole in the seat ring retainer tool.
d. Use the bonnet studs (key 13) to prevent a power torque wrench from rotating.
CAUTION
Hold the torque wrench or driver at right angles to the seat ring retainer when applying torque. Tilting the tool or extension while applying torque may cause the lugs on the seat ring retainer tool to suddenly disengage from the recesses in the retainer, damaging the retainer and seat ring.
e. Unscrew and remove the seat ring retainer.
2. Remove the seat ring (key 6) and the seat ring gasket or O‐ring (key 12).
3. Refer to the Valve Plug Maintenance procedure or to the Lapping Seats procedure.
TSO Trim
1. Remove the retainer, backup ring, anti‐extrusion rings, and piston ring.
2. Remove the set screws that lock the outer plug to the inner plug.
3. Using a strap wrench or similar tool, unscrew the outer plug from the inner plug. Do not damage the outer plug guide surfaces.
4. Remove the protected soft seat seal (see figure 5).
5. Inspect the parts for damage and replace if needed.
6. Refer to the Valve Plug Maintenance procedure or to the Lapping Seats procedure.
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EH (1-1/2x1 through 8x6)
July 2017
Figure 6. Detail of Protected Soft Seat
INNER PLUG
OUTER PLUG
Instruction Manual
D100394X012
CAGE
PROTECTED SOFT SEAT
SEAT RING
A7088
Figure 7. Typical Balanced TSO Trim
VALVE PLUG SEAL
A7096
PROTECTED SOFT SEAT
Valve Plug Maintenance
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Instruction Manual
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July 2017
1. With the valve plug (key 3) removed according to the Trim Removal procedure, proceed as appropriate:
For the EHD valve, the piston rings (key 8) are each in two sections; remove the sections from the grooves in the valve plug.
For the EHS valve, proceed to step 2.
For the EHT valve, work the retaining ring (key 10) off the valve plug with a screwdriver. Carefully slide the backup ring and seal ring (keys 9 and 8) off the valve plug. For an NPS 6 valve with a level D Whisper Trim III cage, also remove the piston ring (key 30) from the grooves in the valve plug.
2. To replace the valve plug stem (key 4), drive out the pin (key 5), and unscrew the stem from the valve plug.
CAUTION
Never reuse an old stem with a new valve plug or reinstall a valve stem after it has been removed. Using an old stem with a new plug requires drilling a new pin hole in the stem. This weakens the stem and may cause the stem to fail in service. If a new valve plug is required, always order a valve plug, stem, and pin as an assembly. Specify the correct part number of each of the three parts, but state that the parts are being ordered as an assembly.
A used valve plug may be reused with a new stem. An exception is the Cavitrol III plug/stem assembly which must be ordered and replaced as a unit.
4. Drive in the pin to lock the assembly.
5. If it is necessary to lap the seating surfaces, complete the Lapping Seats procedure before installing the EHD piston rings or the EHT seal ring. The Trim Replacement procedure provides piston ring and seal ring installation instructions and valve reassembly instructions.
Lapping Seats
in figure 20 for the EHT valve unless otherwise indicated.
Seating surfaces of the valve plug (key 3) and the seat ring (key 6) can be lapped for improved shutoff. Use a good quality lapping compound with a mixture that contains 280 to 600 grit. Apply the compound to the bottom of the valve plug. Use the following procedure to lap the seating surfaces.
1. Install the following parts according to the instructions presented in the Trim Replacement procedure: seat ring gasket or O‐ring (key 12), seat ring (key 6), seat ring retainer (key 7), cage (key 2), cage gaskets (key 11), and if
used, the O‐ring (key 26, figure 21).
2. Proceed as appropriate:
For an EHD or EHT valve, install the valve plug and stem assembly (keys 3 and 4)—without piston rings or seal ring (keys
8 and 30)—into the cage.
For an EHS valve, install the valve plug and stem assembly (keys 3 and 4) into the cage.
4. Attach a handle, such as a piece of strap iron secured by stem locknuts, to the valve stem. Rotate the handle alternately in each direction to lap the seats.
Note
To preserve the effects of lapping, do not change either the position of the seat ring in the valve body cavity or the position of the cage on the seat ring after lapping the seating surfaces. If possible, clean the parts without disturbing their positions. If the parts must be removed for cleaning, return them to the original positions.
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EH (1-1/2x1 through 8x6)
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Instruction Manual
D100394X012
5. After lapping, again disassemble as necessary, clean the seating surfaces, reassemble, and test for shutoff. Repeat the lapping procedure if necessary.
Trim Replacement
After all trim maintenance has been completed, reassemble the valve by following the numbered steps below. Be certain that all gasketed surfaces have been well cleaned. Key numbers referenced in this procedure are shown in
figure 18 for the EHD valve, in figure 19 for the EHS valve, and in figure 20 for the EHT valve.
Figure 8. Trim Surfaces Requiring Lubrication
SEAT RING RETAINER
1
1
SEAT RING GASKET OR O‐RING
SEAT RING
1 LUBRICATION REQUIRED
VALVE BODY
A3583
CAUTION
Thoroughly clean the seat ring (key 6), seat ring retainer (key 7), and the retainer threads in the valve body with a good‐quality degreaser. Also clean all cage gasket surfaces. All residual gasket material must be removed from the cage gasket surfaces and, in gasketed seat ring constructions, from the serrated valve body and seat ring gasket surfaces. If the serrations are scored or damaged during this process, smooth them by hand sanding with 360 grit paper using long, sweeping strokes. Failure to remove all residual gasket material and/or burrs from the seat ring, cage, and valve body gasket surfaces will result in leakage.
lubricate the mating surfaces of both parts involved (i.e., lubricate the threads on the seat ring retainer and the threads in the valve body; lubricate the mating surfaces of the seat ring retainer and seat ring).
Failure to lubricate as described may cause galling and improper gasket or O‐ring (key 12) loading that may result in leakage.
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July 2017
VALVE
SIZE,
NPS/
RATING
VALVE
RATING mm
1-1/2 x 1
2 x 1
CL1500
CL2500
CL1500
CL2500
A
57.2
50.8
57.2
50.8
B
31.8
31.8
31.8
31.8
C
41.1
34.1
41.1
34.1
D
(1)
54.4
51.9
46.4
45.9
54.4
51.9
46.4
45.9
E
120.7
111.3
120.7
111.3
F
11.2
11.2
11.2
11.2
G
7.9
7.9
7.9
7.9
H
11.2
11.2
11.2
11.2
3 x 2
3, 4 x 3
4, 6 x 4
CL1500
CL2500
CL2500
CL2500
79.2
69.9
90.5
117.3
53.8
50.8
65.0
88.9
63.5
53.0
74.6
91.9
76.6
76.1
67.1
66.5
86.1
85.6
108.3
107.8
157.2
150.9
185.7
195.3
12.7
12.7
12.7
14.2
9.7
9.7
9.7
10.4
12.7
12.7
12.7
14.2
6, 8 x 6 CL2500 177.8
130.0
134.9
156.0
155.4
1. D and J dimensions list maximum and minimum values.
254.0
14.2
10.4
14.2
J
(1)
12.4
12.2
12.4
12.2
12.4
12.2
12.4
12.2
12.4
12.2
12.4
12.2
18.8
18.5
25.1
24.9
25.1
24.9
TOOL DIMENSIONS
K
19.1
A
2.25
B
1.25
C
1.62
19.1
2.00
1.25
1.34
19.1
2.25
1.25
1.62
19.1
2.00
1.25
1.34
19.1
3.12
2.12
2.50
19.1
2.75
2.00
2.12
25.4
3.56
2.36
2.94
25.4
4.62
3.50
3.62
38.1
7.00
5.12
5.31
D
(1)
2.140
2.120
1.827
1.807
2.140
2.120
1.827
1.807
3.015
2.995
2.640
2.620
3.390
3.370
4.265
4.245
6.140
6.120
E
Inches
F G H
4.75
0.44
0.31
0.44
4.38
4.75
4.38
6.19
5.94
7.31
7.69
0.44
0.44
0.44
0.50
0.50
0.50
0.56
0.31
0.31
0.31
0.38
0.38
0.38
0.41
0.44
0.44
0.44
0.50
0.50
0.50
0.56
10.00
0.56
0.41
0.56
J
(1)
0.49
0.48
0.49
0.48
0.49
0.48
0.49
0.48
0.49
0.48
0.49
0.48
0.74
0.73
0.99
0.98
0.99
0.96
K
0.75
0.75
0.75
0.75
0.75
0.75
1.00
1.00
1.50
Figure 9. Information for Machining and Use of Seat Ring Retainer Tool
DIM E
0.75 MIN
1.625 MAX
DIM G
DIM F
DIM K
DIA A
DIA B
DIA C
DIA D
CHAM
DIM H
125
0.0625 R
DIM J
2 LUGS EQUALLY SPACED
SEAT RING
SEAT RING
RETAINER
STUD BOLT
SEAT RING
RETAINER TOOL
TOOL LUG
SEAT RING RETAINER TOOL
3MC2169‐E
35A1086‐A
26A5130‐A
B1465‐2
TOOL INSTALLATION
Materials for Machining Tool
Recommended
Materials
Minimum
Rockwell
Hardness
416 stainless steel
17‐4PH stainless steel
4100 Series heat‐treated steel
28
36
31
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EH (1-1/2x1 through 8x6)
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Instruction Manual
D100394X012
Table 9. Recommended Torque for Installing Seat Ring Retainer
VALVE
SIZE,
NPS
VALVE
BODY
RATING
1, 1-1/2x1, 2x1
2, 3x2
3, 4x3
CL1500
CL2500
CL1500
CL2500
CL1500
CL2500
4, 6x4
6, 8x6
CL1500
CL2500
CL1500
CL2500
1. Includes valves with Cavitrol III trim.
For All Valves with
Gasketed Seat Ring
Construction Except
Those with
Cavitrol III Cage
N S m
509
Lbf S Ft
375
373
1187
275
875
848
2203
1593
625
1625
1175
3118
2373
6780
5017
2300
1750
5000
3700
N S m
68
68
136
102
271
203
373
271
780
576
For All Valves with
O‐Ring Seat Ring
Construction (1) or for
Sour Gas Service
TORQUE
For Valve with 2‐Stage
Cavitrol III Cage and
Gasketed Seat Ring
Construction
Lbf S Ft
50
50
100
75
200
150
275
200
575
425
N S m
339
203
881
542
1491
949
2712
2373
6101
4745
Lbf S Ft
250
150
650
400
1100
700
2000
1750
4500
3500
Table 10. Valve Stem Connection Torque and Drill Size for Pin Hole
VALVE SIZE,
NPS
1, 1-1/2x1, 2x1
2, 3x2
3, 4x3
4, 6x4
6, 8x6 mm
12.7
19.1
12.7
VALVE STEM
DIAMETER
Inches
1/2
3/4
1/2
19.1
25.4
12.7
19.1
25.4
19.1
25.4
19.1
25.4
31.8
3/4
1
1/2
3/4
1
3/4
1
3/4
1
1‐1/4
VALVE BODY
RATING
CL1500, CL2500
CL1500
CL1500, CL2500
CL1500, CL2500
CL1500, CL2500
CL1500, CL2500
CL1500, CL2500
CL1500, CL2500
CL1500
CL2500
CL1500, CL2500
CL1500, CL2500
CL1500, CL2500
CL1500, CL2500
CL1500, CL2500
VALVE
EHS
EHS
EHD, EHS, EHT
EHS
EHD, EHT
EHS
EHD, EHS, EHT
EHD, EHS, EHT
EHS
EHD, EHT
EHD, EHT
EHD, EHS, EHT
EHD, EHS, EHT
EHD, EHS, EHT
EHD, EHS, EHT
EHD, EHS, EHT
50.8
2 CL1500, CL2500 EHD, EHT
VALVE STEM
CONNECTION TORQUE
(MINIMUM ‐ MAXIMUM)
N S m
81 ‐ 115
Lbf S Ft
60 ‐ 85
237 - 339
81 ‐ 115
175 - 250
60 ‐ 85
237 ‐ 339
237 ‐ 339
420 ‐ 481
81 ‐ 115
175 ‐ 250
175 ‐ 250
310 ‐ 355
60 ‐ 85
237 ‐ 339
420 ‐ 481
420 - 481
420 ‐ 481
237 ‐ 339
175 ‐ 250
310 ‐ 355
310 - 355
310 ‐ 355
175 ‐ 250
420 ‐ 481
237 ‐ 339
420 ‐ 481
827 ‐ 908
310 ‐ 355
175 ‐ 250
310 ‐ 355
610 ‐ 670
Contact factory for torque values and installation procedure
For Valve with 3‐Stage
Cavitrol III Cage and
Gasketed Seat Ring
Construction
N S m
‐ ‐ ‐
‐ ‐ ‐
678
407
1356
678
2373
1695
5423
4745
Lbf S Ft
‐ ‐ ‐
‐ ‐ ‐
500
300
1000
500
1750
1250
4000
3500
DRILL SIZE
FOR PIN
3/16
1/4
1/4
3/16
3/16
1/4
3/16
1/4
1/4
Inches
1/8
3/16
1/8
3/16
1/8
1/4
1/8
3/8
Table 11. Seat Ring and Seat Ring Retainer Lubricants
VALVE BODY
MATERIAL
WCC, WC9, C5, or LCC steel
CF8M (316 stainless steel)
SEAT RING
MATERIAL
S41600 (416 stainless steel)
R30006 (Alloy 6)
R30006
LUBRICANT
Lithium grease, dry film lubricant, or anti‐seize lubricant
Anti‐seize lubricant
Dry film lubricant or anti‐seize lubricant
1. For gasketed seat ring constructions, install the seat ring gasket (key 12) into the valve body. For O‐ring seat ring constructions, install the O‐ring (key 12) into the groove on the underside of the seat ring (key 6). Install the seat
retainer as follows: a. Insert the tool into the valve body. Be certain the tool lugs are engaged in the corresponding recesses in the retainer.
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July 2017
Connect the torque tool to an extension if necessary. The tool or extension must snugly fit the square hole in the
seat ring retainer tool. Refer to figure 9 for square hole sizes.
c. Insert the tool or extension into the square hole in the seat ring retainer tool.
d. Use the stud bolts (key 13) to prevent a power torque wrench from rotating.
CAUTION
Hold the torque wrench at right angles to the seat ring retainer when applying torque. Tilting the tool and extension while applying torque may cause the lugs on the seat ring retainer tool to suddenly disengage from the recesses in the retainer, damaging the retainer and seat ring.
e. Tighten the seat ring retainer to the torque shown in table 9.
Note
Some cages have one large window and several small windows. In step 2, install a cage that has different size windows so that the largest window faces toward the process outlet for a flow‐down and toward the process inlet for a flow‐up valve. Though it may not be possible to align the large window directly opposite the inlet or outlet, orient the window in the appropriate direction as much as possible. Incorrect orientation of cage windows causes a reduction of capacity.
2. Proceed as appropriate:
For a valve with a Cavitrol III cage,
slide the O‐ring (key 26, figure 21) over the seat ring (key 6) and against the
shoulder in the outer diameter of the seat ring. Install the lower gasket (key 11) between the valve body and cage (key
2), and install the cage. Be certain the lugs on the bottom of the cage engage the corresponding slots in the seat ring retainer.
For all other valves, install the lower gasket (key 11) between the valve body and cage (key 2), and install the cage. Be certain the lugs on the bottom of the cage engage the corresponding slots in the seat ring retainer.
Note
Rotate the cage clockwise by hand as much as possible once the cage lugs engage the slots in the seat ring retainer. Failure to do so may result in leakage at the seat ring to valve body seal.
Constructions other than TSO trim
1. To install the piston rings and seal rings (keys 8 and 30), proceed as appropriate:
if it is necessary to install new piston rings, the replacement piston rings will arrive in one piece. Use a vise with smooth or taped jaws to break a replacement piston ring into halves. Place the new ring in the vise so that the jaws compress the ring into an oval. Compress the ring slowly until the ring snaps on both sides. If one side snaps first, do not try to tear or cut the other side. Instead, keep compressing until the other side snaps. The piston ring can also be fractured by scoring and snapping over a hard surface such as a table edge. Sawing or cutting is not recommended.
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Instruction Manual
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Remove any protective tape or covering from the valve plug and stem assembly, and set it on a protective surface.
Then, place the piston ring in the piston ring groove with the fractured ends matched.
install the seal ring (key 8) onto the valve plug (key 3). Install the ring with the open side
the valve plug stem end of the valve plug for flow‐up applications. Slide the backup ring (key 9) onto the valve plug.
Secure with the retaining ring (key 10). For an NPS 6 valve with a level D Whisper Trim III cage, reinstall the piston ring
(key 30) following the instructions given in the paragraph immediately preceding.
2. Install the valve plug into the cage.
TSO Trim
1. Thread the outer plug onto the inner plug until the parts seat metal to metal, using a strap wrench or similar tool that will not damage the outer plug guide surfaces.
2. Mark the top of the inner plug and outer plug with alignment marks in the assembled position.
3. Disassemble the outer plug from the inner plug and install the seal over the inner plug, so that the seal rests below the threaded area.
4. Thread the outer plug onto the inner plug and tighten with a strap wrench or similar tool until the alignment marks line up. This will ensure that the plug parts are metal to metal and the seal is compressed properly. Do not damage the outer plug guide surfaces.
5. Install set screws centering the inner plug in the outer plug and torque to 11 N S m (8 lbf S ft).
6. Assemble the piston ring, anti‐extrusion rings, backup ring, and retainer.
All Constructions
1. Install the top cage gasket (key 11) on the cage.
2. Install the bonnet over the valve stem and onto the valve body.
Note
threads.
The proper bolting procedures in step 3 include‐‐but are not limited to‐‐ensuring that the bonnet stud threads are clean, Belleville washers (if present) are installed in the correct orientation, and that the hex nuts are evenly tightened to the specified torque values.
CAUTION
crushing, cage diameter reduction, and/or bonnet deformation. Cheater bars or slug wrenches should not be used for this procedure.
Hot torquing is not recommended.
Note
Stud(s) and nut(s) should be installed such that the manufacturer's trademark and material grade marking is visible, allowing easy comparison to the materials selected and documented in the Emerson/Fisher serial card provided with this product.
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July 2017
WARNING
Personal injury or damage to equipment could occur if improper stud and nut materials or parts are used. Do not operate or assemble this product with stud(s) and nut(s) that are not approved by Emerson/Fisher engineering and/or listed on the serial card provided with this product. Use of unapproved materials and parts could lead to stresses exceeding the design or code limits intended for this particular service. Install studs with the material grade and manufacturer's identification mark visible. Contact your Emerson sales office or Local Business Partner immediately if a discrepancy between actual parts and approved parts is suspected.
necessary if new factory prelubricated hex nuts are used). Replace the flat washers (key 29,
)
hex nuts but do not tighten them.
When all nuts are tightened to that torque value, increase the torque by one fourth of the specified nominal torque and repeat the crisscross pattern. Repeat this procedure until all nuts are tightened to the specified nominal value.
Apply the final torque value again and, if any nut still turns, tighten every nut again.
4. Install new packing and packing box parts per steps 13 and 14 of the Replacing Packing procedure. Be certain to observe the note given prior to step 13 of that procedure.
5. Mount the actuator by following the procedures in the actuator instruction manual. Check for packing leakage as
the valve is being put into service. Retorque the packing flange nuts as required (see table 7).
Retrofit: Installing C‐seal Trim
Note
Additional actuator thrust is required for a valve with C‐seal trim. When installing C‐seal trim in an existing valve, contact your
Emerson sales office or Local Business Partner for assistance in determining new actuator thrust requirements.
Figure 10. Fisher EHD with C‐seal Trim
FLOW DOWN
VIEW A
FLOW UP
37B1047‐A
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July 2017
Instruction Manual
D100394X012
Assemble the new valve plug/retainer assembly (with C‐seal plug seal) using the following instructions:
CAUTION
To avoid leakage when the valve is returned to service, use appropriate methods and materials to protect all sealing surfaces of the new trim parts while assembling the individual parts and during installation in the valve body.
1. Apply a suitable high‐temperature lubricant to the inside diameter of the C‐seal plug seal. Also, lubricate the outside diameter of the valve plug where the C‐seal plug seal must be pressed into the proper sealing position
2. Orient the C‐seal plug seal for correct sealing action based on the process fluid flow direction through the valve.
D
D
Note
An installation tool must be used to properly position the C‐seal plug seal on the valve plug. A tool is available as a spare part from your Emerson sales office
3. Place the C‐seal plug seal over the top of the valve plug and press the C‐seal plug seal onto the plug using the C‐seal installation tool. Carefully press the C‐seal plug seal onto the plug until the installation tool contacts the horizontal
reference surface of the valve plug (figure 12).
4. Apply a suitable high‐temperature lubricant to the threads on the plug. Then, place the C‐seal retainer onto the plug and tighten the retainer using an appropriate tool such as a strap wrench.
secure the C‐seal retainer.
6. Install the new plug/retainer assembly with C‐seal plug seal on the new stem following the appropriate instructions in the Trim Replacement section of this manual.
7. Install piston rings by following instructions in the Trim Replacement section of this manual.
8. Remove the existing valve actuator and bonnet following the appropriate instructions in the Replacing Packing section of this manual.
CAUTION
Do not remove the existing valve stem from the valve plug unless you are planning to replace the valve stem.
Never reuse an old valve stem with a new plug or reinstall a valve stem after it has been removed. Replacing a valve stem requires drilling a new pin hole in the stem. This drilling weakens the stem and may cause failure in service.
However, a used valve plug may be reused with a new valve stem. An exception is the Cavitrol III plug/stem assembly which must be ordered and replaced as a unit.
9. Remove the existing valve stem and plug, cage, and seat ring from the valve body following the appropriate instructions in the Trim Removal section of this manual.
10. Replace all gaskets according to appropriate instructions in the Trim Replacement section of this manual.
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July 2017
FOR VALVE
PLUGS
FITTING
PORT SIZE
(Inches)
2.875
3.4375
3.625
4.375
5.375
7
8
FOR VALVE
PLUGS
FITTING
PORT SIZE
(Inches)
2.875
3.4375
3.625
4.375
5.375
7
8
A
3.25
4.00
4.11
4.96
5.62
7.25
8.25
A
82.55
101.6
104.394
125.984
142.748
184.15
209.55
DIMENSIONS, mm
(See Drawing Below)
B
52.324 ‐
52.578
58.674 ‐
58.928
65.024 ‐
65.278
83.439 ‐
83.693
100.076 ‐
100.33
141.376 ‐
141.630
166.776 ‐
167.030
C
4.978 ‐ 5.029
4.978 ‐ 5.029
4.978 ‐ 5.029
4.978 ‐ 5.029
4.978 ‐ 5.029
4.978 ‐ 5.029
4.978 ‐ 5.029
D
3.708 ‐ 3.759
3.708 ‐ 3.759
3.708 ‐ 3.759
3.708 ‐ 3.759
3.708 ‐ 3.759
3.708 ‐ 3.759
3.708 ‐ 3.759
E
41.148
50.8
50.8
50.8
45.974
60.198
55.88
F
52.680 ‐
52.781
61.011 ‐
61.112
68.936 ‐
69.037
87.351 ‐
87.452
103.835 ‐
103.937
145.136 ‐
145.237
170.536 ‐
170.637
Dimensions, Inches
(See Drawing Below)
B C D
2.060 ‐ 2.070
0.196 ‐ 0.198
0.146 ‐ 0.148
2.310 ‐ 2.320
0.196 ‐ 0.198
0.146 ‐ 0.148
2.560 ‐ 2.570
0.196 ‐ 0.198
0.146 ‐ 0.148
3.285 ‐ 3.295
0.196 ‐ 0.198
0.146 ‐ 0.148
3.940 ‐ 3.950
0.196 ‐ 0.198
0.146 ‐ 0.148
5.566 ‐ 5.576
0.196 ‐ 0.198
0.146 ‐ 0.148
6.566 ‐ 6.576
0.196 ‐ 0.198
0.146 ‐ 0.148
E
1.62
2.00
2.00
2.00
1.81
2.37
2.20
F G
2.074 ‐ 2.078
2.170 ‐ 2.190
2.402 ‐ 2.406
2.498 ‐ 2.518
2.714 ‐ 2.718
2.810 ‐ 2.830
3.439 ‐ 3.443
3.535 ‐ 3.555
4.088 ‐ 4.092
4.184 ‐ 4.204
5.714 ‐ 5.718
5.810 ‐ 5.830
6.714 ‐ 6.718
6.810 ‐ 6.830
G
55.118 ‐
55.626
63.449 ‐
63.957
71.374 ‐
71.882
89.789 ‐
90.297
106.274 ‐
106.782
147.574 ‐
148.082
172.974 ‐
173.482
H
70.891 ‐ 71.044
85.166 ‐ 85.319
89.941 ‐ 90.094
H
2.791 ‐ 2.797
3.353 ‐ 3.359
3.541 ‐ 3.547
4.291 ‐ 4.297
5.048 ‐ 5.054
6.674 ‐ 6.680
7.674 ‐ 7.680
Part Number
(To Order
A Tool)
24B9816X012
24B5612X012
24B3630X012
108.991 ‐ 109.144
24B3635X012
128.219 ‐ 128.372
23B9193X012
169.520 ‐ 169.672
23B9180X012
194.920 ‐ 195.072
24B9856X012
Part Number
(To Order
A Tool)
24B9816X012
24B5612X012
24B3630X012
24B3635X012
23B9193X012
23B9180X012
24B9856X012
Figure 11. C‐seal Plug Seal Installation Tool
45 ° X 1.524 (0.06)
∅ A
∅ B
8 ° ‐ 9 °
E
C
D mm (inch)
A6777
∅ F
∅ G
∅ H
45 ° X 0.508 (0.02)
BREAK SHARP
CORNER
45 ° X 0.254 (0.01)
MAX
23
EH (1-1/2x1 through 8x6)
July 2017
Instruction Manual
D100394X012
11. Install the new seat ring, cage, valve plug/retainer assembly, and stem into the valve body and completely reassemble the valve package following the appropriate instructions in the Trim Replacement section of this manual.
CAUTION
To avoid excessive leakage and seat erosion, the valve plug must be initially seated with sufficient force to overcome the resistance of the C‐seal plug seal and contact the seat ring. You can correctly seat the valve plug by using the same force calculated for full load when sizing your actuator. With no pressure drop through the valve, this force will adequately drive the valve plug to the seat ring, thus giving the C‐seal plug seal a predetermined permanent set. Once this is done, the plug/retainer assembly, the cage, and the seat ring become a matched set.
12. With full actuator force applied and the valve plug fully seated, align the actuator travel indicator scale with the lower end of valve travel. Refer to the appropriate actuator instruction manual for information on this procedure.
Replacement of Installed C‐seal Trim
Trim Removal (C‐seal Constructions)
1. Remove the valve actuator and bonnet following the appropriate instructions in the Replacing Packing section of this manual.
CAUTION
To avoid leakage when the valve is returned to service, use appropriate methods and materials to protect all sealing surfaces of the trim parts during maintenance.
Use caution when removing piston ring(s) and C‐seal plug seal to avoid scratching any sealing surface.
CAUTION
Do not remove the valve stem from the plug/retainer assembly unless you are planning to replace the valve stem.
Never reuse an old valve stem with a new plug or reinstall a valve stem after it has been removed. Replacing a valve stem requires drilling a new pin hole in the stem. This drilling weakens the stem and may cause failure in service.
However, a used valve plug may be reused with a new valve stem. An exception is the Cavitrol III plug/stem assembly which must be ordered and replaced as a unit.
2. Remove the plug/retainer assembly (with C‐seal plug seal), cage, and seat ring from the valve body following the appropriate instructions in the Trim Removal section of this manual.
a 1/8‐inch bit to drill out the staked area of the thread. Drill approximately 1/8‐inch into the metal to remove the staking.
4. Locate the break between sections of the piston ring(s). Using an appropriate tool such as a flat‐blade screwdriver, carefully pry out the piston ring(s) from the groove(s) in the C‐seal retainer.
5. After removing the piston ring(s), locate the 1/4‐inch diameter hole in the groove. In a retainer with two piston ring grooves, the hole will be found in the upper groove.
24
Instruction Manual
D100394X012
Figure 12. Installing the C‐seal Plug Seal Using the Installation Tool
INSTALLATION
TOOL
EH (1-1/2x1 through 8x6)
July 2017
C‐seal
METAL
PLUG
SEAL
HORIZONTAL
REFERENCE
SURFACE
VALVE
PLUG
FLOW DOWN
NOTE:
PRESS INSTALLATION TOOL OVER VALVE PLUG UNTIL THE TOOL CONTACTS THE HORIZONTAL REFERENCE SURFACE OF THE VALVE PLUG.
A6778
Figure 13. Stake the Threads of the C‐seal Retainer
DEFORM THREAD TO
STAKE C‐seal RETAINER
PISTON
RING
RETAINER
C‐seal
METAL
PLUG
SEAL
VALVE
PLUG
A6779
FLOW DOWN
6. Select an appropriate tool such as a punch and place the tip of the tool into the hole with the body of the tool held tangent to the outside diameter of the retainer. Strike the tool with a hammer to rotate the retainer and free it from the valve plug. Remove the retainer from the plug.
7. Use an appropriate tool such as a flat‐blade screwdriver to pry the C‐seal plug seal off the plug. Use caution to avoid scratches or other damage to the sealing surfaces where the C‐seal plug seal makes contact with the valve plug
8. Inspect the lower seating surface where the valve plug contacts the seat ring for wear or damage which would prevent proper operation of the valve. Also, inspect the upper seating surface inside the cage where the C‐seal plug
25
EH (1-1/2x1 through 8x6)
July 2017
Instruction Manual
D100394X012 seal contacts the cage, and inspect the sealing surface where the C‐seal plug seal makes contact with the plug
9. Replace or repair trim parts according to the following procedure for lapping metal seats, remachining metal seats, or other valve plug maintenance procedures as appropriate.
Lapping Metal Seats (C‐seal Constructions)
appropriate procedures in the Lapping Seats section of this manual.
Remachining Metal Seats (C‐seal Constructions)
where the valve plug contacts the seat ring. The second seating surface is found where the C‐seal plug seal contacts the upper seating surface in the cage. If you machine the seats on the seat ring and/or plug, you must machine an equal dimension from the seating area in the cage.
Figure 14. Lower (Valve Plug to Seat Ring) and Upper (C‐seal Plug Seal to Cage) Seating Surfaces
RETAINER
CAGE
PLUG
C seal METAL
PLUG SEAL
VALVE PLUG CAGE
UPPER SEATING SURFACE
A6780
NOTE:
1
SEAT
RING
LOWER SEATING SURFACE
CAUTION
If metal is removed from the seat ring and plug and a corresponding amount is not removed from the cage seating area, the
C‐seal plug seal will be crushed as the valve closes and the C‐seal retainer will strike the seating area of the cage, preventing the valve from closing.
Trim Replacement (C‐seal Constructions)
1. Apply a suitable high‐temperature lubricant to the inside diameter of the C‐seal plug seal. Also, lubricate the outside diameter of the valve plug where the C‐seal plug seal must be pressed into the proper sealing position
2. Orient the C‐seal plug seal for correct sealing action based on the process fluid flow direction through the valve.
D
D
Note
An installation tool must be used to properly position the C‐seal plug seal on the valve plug. A tool is available as a spare part from your Emerson sales office
26
Instruction Manual
D100394X012
EH (1-1/2x1 through 8x6)
July 2017
3. Place the C‐seal plug seal over the top of the valve plug and press it onto the plug using the installation tool.
Carefully press the C‐seal plug seal onto the plug until the installation tool contacts the horizontal reference surface
of the valve plug (figure 12).
4. Apply a suitable high‐temperature lubricant to the threads on the plug. Then, place the C‐seal retainer onto the plug and tighten the retainer using an appropriate tool such as a strap wrench.
secure the C‐seal retainer.
6. Replace the piston ring(s) following instructions in the Trim Replacement section of this manual.
7. Return the seat ring, cage, plug/retainer assembly, and stem to the valve body and completely reassemble the valve package following the appropriate instructions in the Trim Replacement section of this manual.
CAUTION
To avoid excessive leakage and seat erosion, the valve plug must be initially seated with sufficient force to overcome the resistance of the C‐seal plug seal and contact the seat ring. You can correctly seat the valve plug by using the same force calculated for full load when sizing your actuator. With no pressure drop through the valve, this force will adequately drive the valve plug to the seat ring, thus giving the C‐seal plug seal a predetermined permanent set. Once this is done, the plug/retainer assembly, the cage, and the seat ring become a matched set.
8. With full actuator force applied and the valve plug fully seated, align the actuator travel indicator scale with the lower end of valve travel. Refer to the appropriate actuator instruction manual for information on this procedure.
Figure 15. Example of Machining the Lower (Valve Plug to Seat Ring) and Upper (C‐seal Plug Seal to Cage) Seating
Surfaces
C‐seal
RETAINER
UPPER SEATING SURFACE
0.508 (0.020) (4) 3
MACHINING OF THE UPPER
SEATING SURFACE MUST
EQUAL THE TOTAL MACHINING OF
THE LOWER SEATING SURFACE
(PLUG PLUS SEAT RING). IF NOT, THE
RETAINER MAY STRIKE THE UPPER
SEATING SURFACE BEFORE THE
VALVE PLUG PROPERLY SEATS ON
THE LOWER SEATING SURFACE.
NOTE:
PLUS
MUST EQUAL
1
2
REMOVAL OF 0.254 mm (0.010 inch) FROM THE VALVE PLUG
REMOVAL OF 0.254 mm (0.010 inch) FROM THE SEAT RING
UPPER SEATING SURFACE IN THE CAGE
4. THESE VALUES ARE FOR EXAMPLE ONLY. REMOVE ONLY THE
MINIMUM AMOUNT OF MATERIAL REQUIRED TO REFURBISH THE SEATS.
PLUG
1 0.254 (0.010) (4)
A6781 / IL
CAGE
SEAT
RING
0.254 (0.010)
(4)
2
LOWER SEATING SURFACE mm (inch)
27
EH (1-1/2x1 through 8x6)
July 2017
Instruction Manual
D100394X012
Parts Ordering
Each body‐bonnet assembly is assigned a serial number, which can be found on the valve body. This same number also appears on the actuator nameplate when the valve body is shipped from the factory as part of a control valve assembly. Refer to the number when contacting your Emerson sales office or Local Business Partner for technical assistance or when ordering replacement parts.
When ordering replacement parts, also be sure to include the 11‐character part number for each part required from the following parts list.
WARNING
Use only genuine Fisher replacement parts. Components that are not supplied by Emerson Automation Solutions should not, under any circumstances, be used in any Fisher valve, because they may void your warranty, might adversely affect the performance of the valve, and could cause personal injury and property damage.
Parts Kits
Standard Packing Repair Kits (Non Live‐Loaded)
Stem Diameter, mm (Inches)
Yoke Boss Diameter, mm (Inches)
PTFE (Contains keys 6, 8, 10, 11, and 12)
Double PTFE (Contains keys 6, 8, 11, and 12)
PTFE/Composition (Contains keys 7, 8, 11, and 12)
Single Graphite Ribbon/Filament (Contains keys 7 [ribbon ring],
7 [filament ring], 8, and 11)
Single Graphite Ribbon/Filament (Contains keys 7 [ribbon ring],
7 [filament ring], and 11)
Single Graphite Ribbon/Filament (Contains keys 7 [ribbon ring],
7 [filament ring])
Double Graphite Ribbon/Filament (Contains keys 7 [ribbon ring],
7 [filament ring], 8, and 11)
Repair Kits (ENVIRO‐SEAL)
Stem Diameter, mm (Inches)
Yoke Boss Diameter, mm (Inches)
Double PTFE (Contains keys 214, 215, 218)
Single Graphite ULF (Contains keys 207, 208, 209, 210, 214)
Duplex (Contains keys 207, 209, 214, 215)
Retrofit Kits (ENVIRO‐SEAL)
Stem Diameter, mm (Inches)
Yoke Boss Diameter, mm (Inches)
Double PTFE (Contains keys 200, 201, 211, 212,
214, 215, 216, 217, 218, tag, cable tie)
Single Graphite ULF (Contains keys 200, 201, 207, 208, 209,
210, 211, 212, 214, 217, tag, cable tie)
Duplex (Contains keys 200, 201, 207, 209, 211, 212, 214, 215,
216, 217, tag, cable tie)
12.7 (1/2)
71 (2‐13/16)
RPACKX00202
RPACKX00602
RPACKX00302
12.7 (1/2)
71 (2‐13/16)
RPACKXRT022
RPACKXRT272
RPACKXRT222
12.7 (1/2)
71 (2‐13/16)
RPACKX00022
RPACKX00052
RPACKX00082
RPACKX00112
- - -
RPACKX00142
RPACKX00172
19.1 (3/4)
90 (3‐9/16)
RPACKX00212
RPACKX00612
RPACKX00312
19.1 (3/4)
90 (3‐9/16)
RPACKXRT032
RPACKXRT282
RPACKXRT232
19.1 (3/4)
90 (3‐9/16)
RPACKX00032
RPACKX00062
RPACKX00092
RPACKX00122
- - -
RPACKX00152
RPACKX00182
25.4 (1)
127 (5)
RPACKX00342
RPACKX00362
- - -
- - -
RPACKX00532
- - -
- - -
31.8 (1-1/4)
127 (5, 5H)
RPACKX00352
RPACKX00372
- - -
- - -
RPACKX00542
- - -
- - -
25.4 (1)
127 (5)
RPACKX00222
RPACKX00622
RPACKX00322
25.4 (1)
127 (5)
RPACKXRT042
RPACKXRT292
RPACKXRT242
31.8 (1‐1/4)
127 (5, 5H)
RPACKX00232
RPACKX00632
RPACKX00332
31.8 (1‐1/4)
127 (5, 5H)
RPACKXRT052
RPACKXRT302
RPACKXRT252
28
Instruction Manual
D100394X012
Parts List
Note
Contact your Emerson sales office or Local Business Partner for Part
Ordering information.
Bonnet Assembly (figure 16)
Key Description
1
2
Bonnet
If you need a bonnet as a replacement part,
order by valve size and stem diameter,
serial number, and desired material.
Baffle, for use with extension bonnet only
3
4
Packing Flange
Packing Flange Stud (2 req'd)
5 Packing Flange Nut (2 req'd)
6* Packing Set or Arrangement
7* Packing Ring, low chloride graphite
13
14
14
14
15
8
8
Packing Spring, 316 stainless steel
Lantern Ring, 316 stainless steel
10 Special Washer, 316 stainless steel
11* Packing Box Ring, 316 stainless steel
12* Upper Wiper, felt
Packing Follower, 316 stainless steel
Pipe Plug
Lubricator
Lubricator/Isolating Valve
Yoke Locknut
25
26
35
Actuator Mounting Stud (8 req'd)
Hex Nut (8 req'd)
Retaining Ring, for use with extension bonnet only
Valve Body (figures 18‐21)
1 Valve Body, order by valve size, serial
number, and desired material
2* Cage
3* Valve Plug
4* Valve Plug Stem
5* Pin
6* Seat Ring
7* Seat Ring Retainer
EH (1-1/2x1 through 8x6)
July 2017
Key Description
8* Piston Ring or Seal Ring
9* Backup Ring
10* Retaining Ring
10* Retaining Ring (for EHT valve body only)
11* Cage Gasket (2 req'd)
12* Seat Ring O‐Ring or Gasket
13
14
Bonnet Stud (8 req'd)
Hex Nut (8 req'd)
15
16
24
25
Flow Arrow
Drive Screw (4 req'd)
Anti‐seize Lubricant
Seat Ring Retainer Tool (see figure 9)
416 stainless steel
26* O‐Ring (for valve with Cavitrol III
trim only), ethylene/propylene
27
28
29
Nameplate
Nameplate Wire
Bonnet Washer
29 Flat Washer (8 req'd)
30* Piston Ring (for EHT with Level D Whisper Trim III cage only)
33 Belleville Washer, N07718 (8 req'd)
63* Anti‐Extrusion Ring
C‐seal Trim (figure 10)
2*
3*
4*
Cage
Valve Plug/Retainer
Valve Plug Stem, S20910
6*
8*
Seat Ring
Piston Ring, graphite (2 req'd)
64* C‐seal, N07718
TSO Trim (figure 7)
2*
4*
5*
8*
Cage
Seat Ring
Plug/Stem Assembly
Seal Ring
63* Anti‐Extrusion Ring
9* Back Up Ring
10* Retaining Ring
*Recommended spare parts 29
EH (1-1/2x1 through 8x6)
July 2017
Figure 16. Fisher EH Bonnet Assembly
Instruction Manual
D100394X012
56A5372‐E
A2699‐2
71 mm (2‐3/16 INCH) YOKE BOSS BONNET
WITH SINGLE ARRANGEMENT PTFE PACKING
18A8557‐A
DETAIL OF BAFFLE AND RETAINING RING
USED IN EXTENSION BONNET
Figure 17. Belleville Washer Body-to-Bonnet Bolting
35A3976‐A
DETAIL OF 127 mm (5‐INCH) YOKE BOSS ACTUATOR BOLTING
(OPTIONAL FOR NPS 3, 4, & 6 EH SERIES VALVE BODIES)
SHOWN IN
UNCOMPRESSED
“FREE” POSITION
BONNET
SHOWN IN
UNCOMPRESSED
“FREE” POSITION
BONNET
GE60624-C
NPS 1-1/2 THROUGH NPS 4 ALL ASME CLASSES
NPS 6 ALL ASME CLASSES EXCEPT CL2500
30
NPS 6 CL2500
NPS 8 AND LARGER ALL ASME CLASSES
Instruction Manual
D100394X012
Figure 18. Fisher EHD Valve
EH (1-1/2x1 through 8x6)
July 2017
VIEW A
GASKETED SEAT RING
CONSTRUCTION
O‐RING SEAT RING
CONSTRUCTION
FLOW DIRECTION FOR ALL TRIMS EXCEPT WITH A WHISPER
TRIM III CAGE OR A VALVE PLUG WITH DIVERTER CONE j APPLY LUB
56A5372‐F
PARTS NOT SHOWN: KEY 29 FLAT WASHER
EHD BODY WITH STANDARD TRIM
59A9166‐A
DETAIL OF PLUG WITH
DIVERTER CONE, FOR
NPS 6 BODY ONLY
57A2887‐A
DETAIL OF WHISPER
TRIM III CAGE FOR
NPS 3 THROUGH 4 BODIES
59A9188‐A
DETAIL OF LEVEL A, B, OR
C WHISPER TRIM III CAGE
AND VALVE PLUG WITH
DIVERTER CONE, FOR
NPS 6 BODY ONLY
ALTERNATE CONFIGURATIONS
REFERENCE STANDARD TRIM KEY NUMBERS EXCEPT AS SHOWN
59A9190‐A
DETAIL OF LEVEL D
WHISPER TRIM III CAGE
AND VALVE PLUG, FOR
NPS 6 BODY ONLY
31
EH (1-1/2x1 through 8x6)
July 2017
Figure 19. Fisher EHS Valve
GASKETED SEAT RING
CONSTRUCTION
VIEW A
O‐RING SEAT RING
CONSTRUCTION
Instruction Manual
D100394X012
FLOW DIRECTION FOR ALL TRIMS EXCEPT THOSE WITH A CAVITROL III CAGE
32 j APPLY LUB
56A5494‐E
PARTS NOT SHOWN: KEY 29 FLAT WASHER
EHS BODY WITH STANDARD TRIM
57A2891‐B
DETAIL OF WHISPER TRIM III CAGE,
FOR NPS 2 THROUGH 6 BODIES
ALTERNATE CONFIGURATIONS
REFERENCE STANDARD TRIM KEY NUMBERS EXCEPT AS SHOWN
Instruction Manual
D100394X012
Figure 20. Fisher EHT Valve
EH (1-1/2x1 through 8x6)
July 2017
FLOW DIRECTION FOR ALL TRIMS EXCEPT WITH A WHISPER
TRIM III CAGE OR A VALVE PLUG WITH DIVERTER CONE
VIEW A
VIEW B
GASKETED SEAT RING
CONSTRUCTION
O‐RING SEAT RING
CONSTRUCTION j APPLY LUB
56A5487‐E
PARTS NOT SHOWN: KEY 29 FLAT WASHER
EHT BODY WITH STANDARD TRIM
57A2889‐A
DETAIL OF WHISPER
TRIM III CAGE FOR
NPS 3 THROUGH 4 BODIES
59A9192‐A
DETAIL OF LEVEL A, B, OR C
WHISPER TRIM III CAGE AND
VALVE PLUG WITH DIVERTER
CONE, FOR NPS 6
BODY ONLY
59A9194‐A
DETAIL OF LEVEL D
WHISPER TRIM III CAGE
AND VALVE PLUG, FOR NPS
6 BODY ONLY
59A9168‐A
DETAIL OF VALVE PLUG
WITH DIVERTER CONE, FOR
NPS 6 BODY ONLY
57A2883‐B
DETAIL OF 3‐STAGE
CAVITROL III CAGE, FOR
ALL BODIES EXCEPT NPS 1
AND CL2500 NPS 2
BODIES (2‐STAGE CAGE
IS AVAILABLE FOR NPS 3
THROUGH 6 BODIES)
ALTERNATE CONFIGURATIONS
REFERENCE STANDARD TRIM KEY NUMBERS EXCEPT AS SHOWN
33
EH (1-1/2x1 through 8x6)
July 2017
Figure 21. Typical Cavitrol III Constructions
Instruction Manual
D100394X012
VIEW A
GASKETED SEAT RING
CONSTRUCTION
O‐RING SEAT RING
CONSTRUCTION
57A2883‐B
DETAIL OF EHT BODY WITH 3‐STAGE
CAVITROL III CAGE
VIEW B
O‐RING SEAL BETWEEN
CAGE AND SEAT RING
34
57A2881‐B
DETAIL OF EHS BODY WITH 2‐STAGE CAVITROL III CAGE
Instruction Manual
D100394X012
Table 12. Valve Plug Diameters and Operating Temperatures
CAGE MATERIAL
S31600 (316 Stainless Steel)
Chrome-coated
S31600 ENC (NACE)
STEM MATERIAL
S31600
S31600 Chrome-coated
S20910
OPERATING TEMPERATURE RANGE
_ C _ F
-198 to +427 -325 to +800
-29 to +593
-40 to +232
-20 to +1100
-40 to +450
S17400 (17‐4PH Stainless Steel)
H1150 (NACE)
S17400 H1150 (NACE)
S20910 -40 to +232 -40 to +450
S31600 Chrome-coated
S20910
S31600
S31600 Chrome-coated
S20910
-40 to +232
-198 to +427
-29 to +593
-40 to +232
-40 to +450
-325 to +800
-20 to +1100
-40 to +450 S31600 ENC (NACE)
S42200 (422 Stainless Steel)
Ion Nitride
S42200 Ion Nitride
S31600 Chrome-coated 427 to 566 +800 to 1050
S31600 Chrome-coated
S31600 ENC (NACE)
S42200 Ion Nitride
S42200 Ion Nitride
S31600 Chrome-coated
S31600 ENC (NACE)
S31600 Chrome-coated
S31600
S31600 Chrome-coated
S20910
S31600 Chrome-coated
S31600 Chrome-coated
S31600
S31600 Chrome-coated
S20910
427 to 510
-198 to +427
-29 to +593
-40 to +232
427 to 510
510 to 566
-198 to +427
-29 to +593
-40 to +232
+800 to 950
-325 to +800
-20 to +1100
-40 to +450
+800 to 950
+950 to 1050
-325 to +800
-20 to +1100
-40 to +450
Figure 22. NPS 3 to 6 Fisher EHT Valve Using PEEK Anti‐Extrusion Rings
EH (1-1/2x1 through 8x6)
July 2017
DIAMETER
CODE
B
B
C
D
D
D
E
F
A
A
A
B
K
K
VALVE BODY
DESIGN
EHD, EHS
EHD, EHS
EHS
EHD
EHS
EHS
EHD, EHS
EHD, EHS
EHD, EHS
EHD, EHS
EHD, EHS
EHD, EHS
EHD
EHD
21B2120‐A
A7132
FLOW UP FLOW DOWN
35
EH (1-1/2x1 through 8x6)
July 2017
Instruction Manual
D100394X012
Actuator Groups by Type Number
Group 1
54 mm (2‐1/8 Inch),
71 mm (2‐13/16 Inch), or 90 mm (3‐9/16 Inch) Yoke Boss
472 & 473
585C, 585CR (50.8 mm [2 inch] maximum travel)
1B & 655
657 & 667—76.2 mm (3 Inch) maximum travel
657‐4, 667‐4 (76.2 mm [3 inch] travel)
1008—Except 90 mm (3‐9/16 Inch) yoke boss with 50.8 mm (2 inch) travel
3024C, 3025
685SE, 685SR (76.2 mm [3 inch] maximum travel)
Group 101
127 mm (5 Inch) Yoke Boss
667, 667 MO
Group 401
90.5 mm (3‐9/16 Inch)
Yoke Boss
88.9 to 101.6 mm (3.25 to 4 inch)
Travel
657, 657 MO
667, 667 MO
657‐4, 657‐4 MO
667‐4, 667‐4 MO
3025
685SE, 685SR
Group 100
127 mm (5 Inch, 5H) Yoke Boss
472, 473
585C, 585C MO
657, 657 MO
1008 PDTC
Group 402
90.5 mm (3‐9/16 Inch)
Yoke Boss
101.6 mm (4 Inch) Maximum
Travel
585C MO Size 60
Group 403
90.5 mm (3‐9/16 Inch)
Yoke Boss
101.6 mm (4 Inch) Maximum
Travel
585C Size 60
1008 Size 50
Group 404
127 mm (5 Inch, 5H) Yoke Boss
101.6 mm (4 Inch) Maximum
Travel
667, 667‐4
3025 (ATO)
Group 405
127 mm (5 Inch, 5H) Yoke Boss
101.6 mm (4 Inch) Maximum
Travel
657 MO, 657‐4 MO
Group 406
127 mm (5 Inch, 5H) Yoke Boss
101.6 mm (4 Inch) Maximum
Travel
667 MO, 667‐4 MO
Group 408
177.8 mm (5H, 7 Inch) Yoke
Boss
101.6 mm (4 Inch) Maximum
Travel
657 Size 100
1008 Size 100
3025 (ATC)
Group 409
177.8 mm (5H, 7 Inch) Yoke
Boss
101.6 mm (4 Inch) Maximum
Travel
667 Size 100
3025 (ATO)
Group 801
90.5 mm (3‐9/16 Inch)
Yoke Boss
203.2 mm (8 Inch) Maximum
Travel
585C, 585C MO Size 60
685SE, 685SR
Group 407
127 mm (5 Inch, 5H) Yoke Boss
101.6 mm (4 Inch) Maximum
Travel
585C, 585C MO
657
3025 (ATC)
685SE, 685SR
Group 802
127 mm (5 Inch, 5H)
Yoke Boss
203.2 mm (8 Inch) Maximum
Travel
585C, 585C MO
685SE, 685SR
*Recommended spare parts
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Fisher, Cavitrol, ENVIRO-SEAL, and Whisper Trim are marks owned by one of the companies in the Emerson Automation Solutions business unit of Emerson
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The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they are not to be construed as warranties or guarantees, express or implied, regarding the products or services described herein or their use or applicability. All sales are governed by our terms and conditions, which are available upon request. We reserve the right to modify or improve the designs or specifications of such products at any time without notice.
Emerson Automation Solutions
Marshalltown, Iowa 50158 USA
Sorocaba, 18087 Brazil
Cernay 68700 France
Dubai, United Arab Emirates
Singapore 128461 Singapore www.Fisher.com
36
1981, 2017 Fisher Controls International LLC. All rights reserved.
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