Fisher EHD and EHT NPS 8 through 14 Sliding-Stem Control Valves Instruction manual
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Instruction Manual
D100392X012
EH Valves NPS 8 through 14
June 2017
Fisher
™
EHD and EHT NPS 8 through 14
Sliding‐Stem Control Valves
Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Scope of Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Educational Services
Installation
. . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Principle of Operation . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Packing Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . .
Packing Maintenance
Replacing Packing
. . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . .
Trim Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
EHD, EHT Valve Plug Maintenance . . . . . . . . . . . . .
Lapping Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Trim Replacement . . . . . . . . . . . . . . . . . . . . . . . . . .
Retrofit: Installing Bore Seal Trim
Replacement of Installed Bore Seal Trim
Trim Removal (Bore Seal Constructions)
Lapping Metal Seats
(Bore Seal Constructions)
Remachining Metal Seats
(Bore Seal Constructions)
Trim Replacement
. . . . . . . . . . . . . .
. . . . . . . .
. . . .
. . . . . . . . . . . . . .
. . . . . . . . . . . . . .
(Bore Seal Constructions)
Actuator Mounting
. . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . .
Parts Ordering
Parts Kits
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bonnet Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . .
Valve Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 1. Fisher EH Series Control Valve with 667 Actuator
W2992‐1
Introduction
Scope of Manual
This instruction manual includes installation, maintenance, and parts ordering information for NPS 8 through 14 Fisher
EHD and EHT sliding‐stem globe‐style control valves. Refer to separate manuals for instructions covering the actuator, positioner, and accessories.
Do not install, operate, or maintain an EH 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 or Local Business Partner before proceeding.
www.Fisher.com
EH Valves NPS 8 through 14
June 2017
Instruction Manual
D100392X012
Table 1. Specifications
End Connection Styles (1)
Buttwelding: All available ASME B16.25 schedules that are compatible with ASME B16.34
pressure/temperature ratings
Flanged Ends:
J
CL1500 or 2500 J raised‐face (RF) or ring‐type joint (RTJ) flanges per ASME B16.5
Whisper Trim™ III Cages: J Linear or characteristics available upon request
J modified
Flow Direction
Normally flow down (in through the cage windows and out through the seat ring) for all cage styles except for applications using either a Whisper Trim III cage or a diverter cone plug, both of which are flow up only Shutoff Classifications
Bore seal trim:
High‐temperature, Class V.
Additional Specifications
For specifications such as materials, valve plug travels, and port, yoke boss, and stem diameters, see the Parts List section
Flow Characteristic
Standard Cages: J Linear, J equal percentage, or
J modified equal percentage (2)
Approximate Weights
1. The pressure or temperature limits in this manual and any applicable standard limitations should not be exceeded.
2. Valves using an equal percentage cage may be travelled an additional 13 mm (0.5 inch) if desired to obtain additional capacity; flow characteristic becomes modified equal percentage.
Table 2. Shutoff Classifications (1)
Valve Design
EHD
EHT
EHT w/ PEEK (2) Anti‐Extrusion Rings
1. Per ANSI/FCI 70‐2 and IEC 60534‐4
2. Poly Ether Ether Ketone
ANSI/FCI LEAKAGE CLASS
III—Standard
IV—Optional
IV—Standard
V—Optional
V to 316 _ C (600 _ F)
Description
have metal seats, cage guiding, and push‐down‐to‐close valve plug action.
The EHD and EHT valves feature balanced valve plugs. To provide a seal between the valve plug and cage, the EHD valve plug has piston rings; the EHT valve plug has a pressure‐assisted seal ring.
Bore seal trim is available for EHD valves, CL1500, NPS 8 and 10 and CL2500, NPS 8, 10, 12, and 14.
With Bore seal trim, a balanced valve can achieve high‐temperature, Class V shutoff. Because the Bore seal plug seal is formed from metal (N07718 nickel alloy) rather than an elastomer, a valve equipped with the Bore seal trim can be applied in processes with a fluid temperature of up to 593 _ C (1100 _ F), provided other material limits are not exceeded.
Specifications
Specifications for the EHD and EHT valves are shown in table 1.
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Instruction Manual
D100392X012
EH Valves NPS 8 through 14
June 2017
Educational Services
For information on available courses for the Fisher EH NPS 8 through 14 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
Valve Design
(PRESSURE RATING)
Valve Size, NPS Port Diameter, Inches
EHD
(CL1500)
8
10
7
EHD
(CL2500)
8
10
12
14
5.375
7
Cage Style
Equal Percentage
Modified Equal Percentage
Linear (std. cage)
Linear (Whisper III, A1, B3, C3)
Equal Percentage, Modified Equal Percentage,
Linear (std. cage),
Linear (Whisper III, A1, B3, C3, D3)
Equal Percentage, Modified Equal Percentage,
Linear (std. cage),
Linear (Whisper III, A1, B3, C3, D3)
ANSI/FCI Leakage
Class
V with optional Bore seal trim
V with optional Bore seal trim)
V with optional Bore seal trim)
Table 4. Approximate Weights (Valve Body and Bonnet Assemblies)
WEIGHTS
VALVE
SIZE,
NPS
Buttwelding Ends
CL1500
Flanged
8
Kilograms
1400
Pounds
3100
Kilograms
1700
Pounds
3700
Buttwelding Ends
Kilograms
1900
Pounds
4100
CL2500
Kilograms
2200
Flanged
Pounds
4700
10
12
14
1500
3400
3400
3300
7300
7300
1900
3900
‐ ‐ ‐
4100
8600
‐ ‐ ‐
2000
3400
3400
4400
7600
7600
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
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.
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EH Valves NPS 8 through 14
June 2017
Instruction Manual
D100392X012
CAUTION
The valve configuration and construction materials were selected to meet particular pressure, temperature, pressure drop, and controlled fluid conditions. Because some body/trim material combinations are limited in their pressure drop and temperature range capabilities, do not apply any other conditions to the valve without first contacting your Emerson sales office or Local Business Partner.
If hoisting the valve, use a nylon sling to protect the painted surfaces. Carefully position the sling to prevent damage to the actuator tubing or any accessories. Also, take precautions to prevent personnel from being injured in case the hoist or
actuator assembly weights. Be sure to use adequately sized hoists and chains or slings to handle the valve and actuator assembly.
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 installing a valve with small internal flow passages, such as with Whisper Trim III or Cavitrol™ III cages, consider 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.
3. Install the control valve with the valve body in a horizontal pipeline and the actuator vertical above the valve. Other orientations may result in shortened trim life and difficulty with field maintenance. Flow through the valve body
must be in the direction indicated by the flow arrow (key 15, figure 12 or 14) on the valve body.
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. Shrink‐fit pieces and threaded connections might also loosen. In general, if post‐weld heat treating is needed, remove all trim parts. Contact your Emerson sales office or Local Business Partner for additional information.
4. Use accepted piping and welding practices when installing the valve in the line. For flanged valve bodies, use suitable gaskets between the valve body flanges and pipeline flanges.
5. Install a three‐valve bypass around the control valve if continuous operation is required during maintenance.
6. If the actuator and valve are shipped separately, see the Actuator Mounting procedure.
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.
7. If the valve was shipped without packing installed in the packing box, install the packing prior to putting the valve into service. Refer to instructions given in the Packing Maintenance section of this manual.
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Instruction Manual
D100392X012
EH Valves NPS 8 through 14
June 2017
Principle of Operation
EHD and EHT valves are balanced designs. When they are opening or closing, pressure registers on top of the valve plug (key 3) through the registration holes in the plug. The force of the pressure on top of the plug balances the force of the pressure on the bottom of the plug to reduce the actuator force required.
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 and maintenance, trim maintenance, and lapping of metal seats. 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.
WARNING
Due to the size and weight of the valve and actuator assembly, be sure adequately sized hoists and chains or slings are used to handle it. Also, take proper precautions to prevent personnel from being injured if the hoist or rigging slips unexpectedly.
Note
Whenever a gasket seal is disturbed by removing or shifting gasketed parts, install a new gasket upon reassembly. This is necessary to ensure a good gasket seal.
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EH Valves NPS 8 through 14
June 2017
Instruction Manual
D100392X012
8. After all maintenance is complete, refer to the Trim Replacement procedure to assemble the valve body.
Note
If the valve has ENVIRO‐SEAL™ live‐loaded packing installed, see the Fisher instruction manual titled ENVIRO‐SEAL Packing System for Sliding‐Stem Valves ( D101642X012 ) for packing instructions.
If the valve has HIGH‐SEAL live‐loaded packing installed, see the Fisher instruction manual titled HIGH‐SEAL Live‐Loaded Packing
System ( D101453X012 ) for instructions.
Figure 2. Lubricator and Lubricator/Isolating Valve
14
LUBRICATOR
14
27
10A9421‐A
AJ5428‐D
A0832‐2
LUBRICATOR/ISOLATING VALVE
Packing Lubrication
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).
CAUTION
Do not lubricate graphite packing. Graphite packing is self-lubricated. Additional lubrication may result in slip-stick movement of the valve.
Note
ENVIRO‐SEAL or HIGH‐SEAL packing does not require lubrication.
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Instruction Manual
D100392X012
EH Valves NPS 8 through 14
June 2017
lubricator or lubricator/isolating valve is installed in place of the pipe plug in the bonnet. Use a good quality silicon‐base lubricant. Do not lubricate packing used in oxygen service or in processes with temperatures over 260 _ C
(500 _ F). To operate the lubricator, turn the cap screw clockwise to force lubricant into the packing box. The lubricator/isolating valve operates the same way except open the isolating valve before turning the cap screw and then close the isolating valve after lubrication is completed.
Packing Maintenance
WARNING
Personal injury could result from packing leakage. Valve packing was tightened before shipment; however, the packing might require readjustment to meet specific service conditions.
Valves with ENVIRO‐SEAL live‐loaded packing or HIGH‐SEAL live‐loaded packing installed probably 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.
To convert an existing packing arrangement to ENVIRO‐SEAL packing, refer to the retrofit kits listed in the parts kit
sub‐section near the end of this manual. Figure 10 shows typical ENVIRO‐SEAL packing systems.
replace the packing by following the Replacing Packing procedure.
If packing leakage is undesirable with other than spring‐loaded PTFE V‐ring packing, first try to limit the leakage and
result.
Table 5. Recommended Packing Flange Nut Torques mm
STEM DIAMETER
Inches
VALVE
RATING
CL1500
31.8
1‐1/4
50.8
2
CL2500
CL1500
CL2500
Min
68
81
98
115
N S m
Max
102
122
146
170
Min
50
60
72
85
Lbf S ft
Max
75
90
108
125
If the packing is relatively new and tight on the stem, and if tightening the packing flange nuts does not stop the leakage, the valve stem may be worn or nicked so that a seal cannot be made. The surface finish of a new stem is critical for making a good packing seal. If the leakage comes from the outside diameter of the packing, the leakage may be caused by nicks or scratches around the packing box wall. While replacing the packing according to the
Replacing Packing procedure, inspect the stem and packing box wall for nicks or scratches.
Replacing Packing
WARNING
Refer to the WARNING at the beginning of the Maintenance section in this instruction manual.
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EH Valves NPS 8 through 14
June 2017
Instruction Manual
D100392X012
Key numbers referred to in this procedure are shown in figure 11 unless otherwise indicated.
exhaust all actuator pressure, if any was applied, and disconnect the actuator supply and any leakoff piping.
2. Remove the hex nuts (key 26) and remove the actuator from the bonnet (key 1). Loosen the packing flange nuts
Remove any travel indicator disk and stem locknuts from the valve plug stem threads.
WARNING
Do not remove a stuck bonnet by pulling on it with equipment that can stretch or store energy in any other manner. The sudden release of stored energy can cause uncontrolled movement of the bonnet. To avoid personal injury or property damage caused by uncontrolled movement of the bonnet, loosen the bonnet by following the instructions in the next step.
Figure 3. Actuator Mounting
STEM
CONNECTOR
CAP SCREWS
ANTI‐ROTATION GROOVE
TRAVEL INDICATOR
STEM CONNECTOR
POINTER
STEM LOCKNUTS
MOUNTING STUDS & NUTS
15A4691‐A
A2359‐2
Note
The following step also provides additional assurance that the valve fluid pressure has been relieved.
(1/8 inch). Then loosen the body‐to‐bonnet gasketed joint by either rocking the bonnet or prying between the bonnet and valve body. Work the prying tool around the bonnet until the bonnet loosens. If no fluid leaks from the joint, proceed with the bonnet removal in step 5.
WARNING
If the cage sticks to the bonnet, proceed carefully with bonnet removal until the cage windows are accessible. Do not extend hands or arms through the windows at this point as a sudden separation of bonnet and cage will cause personal
8
Instruction Manual
D100392X012
EH Valves NPS 8 through 14
June 2017 injury. Use a stick or other device to thread a rope or sling through the windows. Use this rigging to secure the cage to the bonnet or hoist to prevent damage or injury should the cage suddenly separate from the bonnet.
CAUTION
the bonnet after being lifted part way out. The parts are also easier to handle separately.
bonnet off the valve plug stem. If the valve plug assembly starts to lift with the bonnet, use a brass or similar hammer to tap the end of the stem and tap it back down. Set the bonnet on a protective surface to prevent damage to the bonnet gasket surface.
CAUTION
Use care to avoid damaging gasket sealing surfaces.
EHD piston rings (key 8) are brittle and in two halves. Use care to avoid damage to the piston rings caused by dropping or rough handling.
5. Lift the plug assembly (keys 3 and 4, figure 12 or 14) out of the valve body.
the 1/2 inch 13‐UNC tapped holes in the top of the cage. Using the eyebolts, carefully lift the cage out of the valve
from the 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.
Table 6. Body‐to‐Bonnet Bolting Torques
VALVE SIZE
NPS
8, 10
12, 14
VALVE
RATING
CL1500
CL2500
CL1500
CL2500
B7, B16, BD, 660 STUDS
N S m
2710 lbf S ft
2000
4070 3000
8130
5830
6000
4300
N S m
2035
3050
6100
4370
B8, B8M STUDS lbf S ft
1500
2250
4500
3225
8. Remove the packing flange nuts, packing flange, upper wiper and packing follower. Carefully push out all the remaining packing parts from the valve side of the bonnet using a rounded rod or other tool that will not scratch the
box ring, spring, lantern ring, washer if used, and packing follower (keys 11, 8, 10, and 13).
9. Inspect the valve plug stem threads for any sharp edges that might cut the packing. Use a whetstone or emery cloth to smooth the threads if necessary.
10. Remove the protective covering from the valve body cavity, and install the cage using new cage gaskets (key 11,
11. Install the plug and stem assembly. Be sure the seal ring or piston rings are installed correctly as described under
Trim Replacement.
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EH Valves NPS 8 through 14
June 2017
Instruction Manual
D100392X012
Figure 4. Packing Arrangements
UPPER WIPER (KEY 12)
12A8160‐A
PTFE V‐RING
SINGLE PACKING
PACKING FOLLOWER
(KEY 13)
FEMALE
ADAPTOR
(KEY 32)
V‐RING (KEY 7)
KEY 6
1
MALE ADAPTOR
(KEY 31)
WASHER (KEY 10)
SPRING (KEY 8)
PACKING BOX
RING (KEY 11)
LOWER WIPER
(KEY 30)
PACKING FOLLOWER
(KEY 13)
GRAPHITE LAMINATE
PACKING RING (KEY 7)
2
GRAPHITE FILAMENT
PACKING RING (KEY 9)
3
LANTERN RING
(KEY 8)
UPPER WIPER (KEY 12)
PACKING FOLLOWER
(KEY 13)
PACKING RING
(KEY 7)
PACKING RING
(KEY 7)
LANTERN RING
(KEY 8)
14A3412‐B
GRAPHITE LAMINATE AND FILAMENT
SINGLE PACKING
PACKING BOX RING
(KEY 11)
PACKING BOX RING
(KEY 11)
13A0112‐A
GRAPHITE/COMPOSITION
DOUBLE PACKING
12A7839‐A
Sht 1
PTFE V‐RING
DOUBLE PACKING
UPPER WIPER (KEY 12)
PACKING FOLLOWER
(KEY 13)
FEMALE ADAPTOR
(KEY 32)
V‐RING (KEY 7)
MALE ADAPTOR
(KEY 31)
KEY 6
1
LANTERN RING
(KEY 8)
PACKING FOLLOWER
(KEY 13)
GRAPHITE LAMINATE
PACKING RING (KEY 7)
2
GRAPHITE FILAMENT
PACKING RING (KEY 9)
3
LANTERN RING
(KEY 8)
PACKING BOX
RING (KEY 11)
LOWER WIPER (KEY
30)
1
14A3414‐B
GRAPHITE LAMINATE AND FILAMENT
DOUBLE PACKING
PACKING BOX RING
(KEY 11)
12A8163‐A
PTFE/COMPOSITION
DOUBLE PACKING
PACKING ARRANGEMENTS FOR 31.8 mm (1‐1/4 INCH) VALVE STEMS
UPPER WIPER (KEY 12)
PACKING FOLLOWER
(KEY 13)
PACKING RING
(KEY 7)
LANTERN RING
(KEY 8)
PACKING BOX RING
(KEY 11)
UPPER WIPER (KEY 12)
PACKING
FOLLOWER (KEY 13)
GRAPHITE
LAMINATE
PACKING RING
(KEY 7)
2
1
PACKING
FOLLOWER
(KEY 13)
GRAPHITE
LAMINATE
PACKING RING
(KEY 7) 2
PACKING FOLLOWER
(KEY 13)
PACKING RING
(KEY 7)
1
GRAPHITE FILAMENT
PACKING RING
(KEY 9)
3
GRAPHITE
FILAMENT
PACKING RING
(KEY 9) 3
LANTERN RING
(KEY 8)
LANTERN RING
(KEY 8)
1
PACKING
BOX RING (KEY 11)
14A3418‐A 14A3419‐B
GRAPHITE LAMINATE AND FILAMENT
SINGLE PACKING
LANTERN RING
(KEY 8)
GRAPHITE LAMINATE AND FILAMENT
DOUBLE PACKING
PACKING
BOX RING
(KEY 11)
13A0029‐A
PACKING BOX RING
(KEY 11)
GRAPHITE/COMPOSITION AND PTFE/COMPOSITION
DOUBLE PACKING
1
C0634‐1
PACKING ARRANGEMENTS FOR 50.8 mm (2‐INCH) VALVE STEMS
NOTES:
0.102 mm (0.004 INCH) THICK SACRIFICIAL ZINC WASHERS.
USE ONLY ONE BELOW EACH GRAPHITE LAMINATE RING.
2
3
HAS THE APPEARANCE OF FLAT WASHERS PRESSED TOGETHER.
HAS THE APPEARANCE OF A WOVEN OR BRAIDED RING.
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Instruction Manual
D100392X012
12. Slide the bonnet over the stem and onto the bonnet studs (key 13, figure 12 or 14).
EH Valves NPS 8 through 14
June 2017
Note
body‐to‐bonnet joint.
threads.
The proper bolting procedures in step 13 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. Do not use cheater bars or slug wrenches for this procedure.
Hot torquing is not recommended; it may result in damage to valve components.
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.
so that the concave side is facing towards the valve body or flat washer. Replace the hex nuts and torque the nuts in
tightened to that torque value, increase the torque by 1/4 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.
smooth‐edged pipe over the valve stem, and gently tamp each soft packing part into the packing box.
15. 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) and then install the packing flange nuts.
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EH Valves NPS 8 through 14
June 2017
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For spring‐loaded PTFE V‐ring packing: Tighten the packing flange nuts until the shoulder on the packing follower (key
13) contacts the bonnet (key 1).
For other kinds of packing, except ENVIRO‐SEAL and HIGH‐SEAL: Tighten the packing flange nuts to the maximum
For ENVIRO‐SEAL and HIGH‐SEAL packing: 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.
Table 7. Seat Ring and Seat Ring Cap Screw Lubricants and Recommended Torque for Seat Ring Cap Screws
LUBRICANT
Lithium Grease or Anti‐Seize
Lubricant
VALVE
SIZE,
NPS
8, 10
12, 14
VALVE
RATING
CL1500
CL2500
CL1500
CL2500
CL1500
N S m
61
Spiral Wound
Gasket Construction lbf
RECOMMENDED TORQUE
S
45 ft N S m
O‐Ring Construction or
Constructions for
Sour Gas Service lbf S ft
41 30
95
95
95
47
70
70
70
35
61
61
61
34
45
45
45
25
8, 10
Dry Film
Lubricant
12, 14
CL2500
CL1500
CL2500
75
75
75
55
55
55
47
47
47
35
35
35
16. Mount the actuator on the valve body assembly, and reconnect the actuator and valve plug stem according to the
Actuator Mounting procedure. After the control valve is returned to service, retighten the hex nuts (key 14, figure
12 or 14) to the torque recommended in table 6.
Trim Removal
WARNING
Refer to the WARNING at the beginning of the Maintenance section in this instruction manual.
For Bore seal construction, see the appropriate Bore seal sections in this instruction manual.
except where indicated.
1. Remove the actuator and bonnet by following steps 1 through 9 of the Replacing Packing procedure.
2. To remove the seat ring (key 6), remove the cap screws (key 7). Install eyebolts or similar devices in the 5/8 inch
11‐UNC tapped holes (9/16 inch 12‐UNC for an NPS 8 or 10 CL1500 valve). Use the eyebolts to carefully lift the seat ring out of the valve body. If the seat ring is to be reused, exercise care to protect the gasket surfaces on the bottom of the seat ring.
3. Remove the spiral wound seat ring gasket or O‐ring (key 12).
4. Refer to the following appropriate valve plug maintenance procedure or to the Lapping Seats procedure.
EHD and EHT Valve Plug Maintenance
12
Instruction Manual
D100392X012
EH Valves NPS 8 through 14
June 2017
1. With the valve plug (key 3) removed per 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 all EHT valves, 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. Additionally, for the EHT valve with Whisper Trim Level D cage, remove
the two sections of the piston ring (key 30, figure 14).
2. To replace the valve plug stem (key 4), drive out the pin (key 5) and unscrew the stem from the valve plug (key 3).
CAUTION
Never reuse an old stem with a new valve plug. 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.
3. Thread the new stem into the valve plug until the stem wedges tightly at the end of the thread. Using the valve plug pin hole as a guide, drill the pin hole through the stem. Use a 1/4 inch drill for 31.8 mm (1‐1/4 inch) stems and a 3/8 inch drill for 50.8 mm (2‐inch) stems.
4. Drive in the pin to lock the assembly.
5. If seat lapping is necessary, complete the Lapping Seats procedure before installing the EHD piston rings or the EHT seal ring. Piston ring and seal ring installation instructions and valve body‐to‐bonnet reassembly instructions are presented in the Trim Replacement procedure.
Lapping Seats
A certain amount of leakage should be expected with metal‐to‐metal seating in any valve. If the leakage becomes excessive, however, the condition of the seating surfaces of the valve plug (key 3) and seat ring (key 6) can be improved by lapping. (Deep nicks should be machined out rather than ground out.) 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. For all designs, install the seat ring gasket or O‐ring (key 12), seat ring (key 6), seat ring cap screws (key 7), lower cage gasket (key 12), cage (key 2), and upper cage gasket (key 12) into the valve body per the instructions in the
Trim Replacement procedure.
2. Install the assembled valve plug and stem (keys 3 and 4)‐‐without piston rings or seal ring (key 8)‐‐ into the cage.
the hex nuts (key 14).
4. Attach a handle, such as a piece of strap iron secured by stem locknuts, to the valve plug stem. Rotate the handle alternately in each direction to lap the seats.
Note
In order 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 Valves NPS 8 through 14
June 2017
Instruction Manual
D100392X012
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
EHD valve and in figure 14 for the EHT valve.
CAUTION
Thoroughly clean the seat ring (key 6), the seat ring cap screws (key 7), and the cap screw threads in the valve body with a good‐quality degreaser. Unless the valve is to be used for oxygen service, thoroughly lubricate the cap screw threads and
the underside of the cap screw heads with one of the lubricants (or equivalent) shown in table 7.
Failure to lubricate as described may cause galling and improper seat ring gasket or O‐ring (key 12) loading which may result in leakage.
WARNING
If the control valve is to be used for oxygen service, use the lubrication procedure above, but substitute a lubricant that has been approved for oxygen service. Use of unapproved lubricants creates a fire or explosion hazard.
1. Install either the seat ring gasket or the O‐ring (key 12). Place the O‐ring in the O‐ring groove in the seat ring before installing the seat ring in the valve body. Install the seat ring (key 6) and secure it with the seat ring cap screws (key
7). Torque the hex socket head cap screws in a criss‐cross pattern with no more than 20 N S m (15 lbf S ft) of torque.
When all are tightened to 20 N S m (15 lbf S ft), increase the torque 20 N S m (15 lbf S ft) without exceeding the torque
2. Install one of the cage gaskets (key 11) between the valve body and cage (key 2), and install the cage.
3. If the cage used has multiple sizes of windows, attempt to orient the largest window toward the valve body web (a shelf‐like projection of the casting into the flow cavity). As an alternate reference, orient the largest window toward the process outlet for a flow‐down and toward the process inlet for a flow‐up valve.
4. Inspect the valve plug stem threads for any sharp edges that might cut the packing. Use a whetstone or emery cloth to smooth the threads if necessary.
5. To install the piston rings or seal ring (key 8), proceed as appropriate:
For an EHD valve, if installing a new piston ring, the replacement piston ring will arrive in one piece. Use a vise with smooth or taped jaws to break this replacement piston ring into halves. Place the new ring in the vise so that the jaws compress the ring into an oval. Slowly compress the ring 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.
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.
For an EHT valve, install the seal ring (key 8) onto the valve plug (key 3). Install the ring with the open side facing the
stem end of the valve plug for a flow‐up application. Slide the backup ring (key 9) onto the valve plug. Secure with the
using the procedure given in the EHD instructions immediately preceding this paragraph.
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Instruction Manual
D100392X012
EH Valves NPS 8 through 14
June 2017
6. Install the valve plug into the cage.
7. Install the other cage gasket (key 11) between the cage and the bonnet.
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; it may result in damage to valve components.
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.
8. Install the bonnet over the valve stem and onto the valve body. Lubricate the threads of the studs (key 13) and the faces of the hex nuts (key 14) with anti‐seize lubricant (key 24). Secure the bonnet with hex nuts (key 14) and washers (key 29). Torque the nuts in a crisscross pattern to no more than 1/4 of the nominal torque value specified
and repeat the crisscross pattern. Repeat this procedure until all nuts are tightened to the specified nominal value.
Repeat the final torque value and if any nut still turns, tighten every nut again.
smooth‐edged pipe over the valve stem, and gently tamp each soft packing part into the packing box.
10. 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) and then install 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 (key 1).
For other kinds of packing, except ENVIRO‐SEAL and HIGH‐SEAL: Tighten the packing flange nuts to the maximum
For ENVIRO‐SEAL and HIGH‐SEAL packing: 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.
11. Mount the actuator by following the Actuator Mounting procedure. Check for packing leakage as the valve is
14) to the torque shown in table 6.
15
EH Valves NPS 8 through 14
June 2017
Figure 5. Fisher EHD with Bore Seal Trim
RETAINER
PISTON RING
CAGE
PLUG
RETAINER
FLOW DOWN
SEATING AREA
BORE SEAL
PISTON RING
CAGE
PLUG
FLOW UP
VIEW A
SEATING AREA
BORE SEAL
Instruction Manual
D100392X012
A
16
Instruction Manual
D100392X012
EH Valves NPS 8 through 14
June 2017
Retrofit: Installing Bore Seal Trim
Note
Additional actuator thrust is required for a valve with Bore Seal trim. When installing Bore Seal trim in an existing valve, contact your Emerson sales office or Local Business Partner for assistance in determining new actuator thrust requirements.
Assemble the new valve plug/retainer assembly (with Bore 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 Bore Seal plug seal. Also, lubricate the outside diameter of the valve plug where the Bore Seal plug seal must be pressed into the proper sealing position
2. Orient the Bore Seal plug seal for correct sealing action based on the process fluid flow direction through the valve.
D
D
3. Place the Bore Seal plug seal over the top of the valve plug. The retainer will help guide the Bore Seal down onto the
plug.
5. Apply a suitable high‐temperature lubricant to the threads on the plug. Then, place the Bore Seal retainer onto the plug and tighten the retainer using an appropriate tool such as a strap wrench. For flow down constructions, skip to step 7.
6. Remove the retainer and then the installation tool. Place the Bore Seal retainer back onto the plug and tighten the retainer using an appropriate tool such as a strap wrench.
secure the Bore Seal retainer.
8. Install the new plug/retainer assembly with Bore Seal plug seal on the new stem following the appropriate instructions in the Trim Replacement section of this manual.
9. Install piston rings by following instructions in the Trim Replacement section of this manual.
10. Remove the existing valve actuator and bonnet following the appropriate instructions in the Replacing Packing section of this manual.
17
EH Valves NPS 8 through 14
June 2017
Figure 6. Bore Seal Installation Tool
F
E
G
H
D
A
B
C
Instruction Manual
D100392X012
GE22109-A
Table 8. Bore Seal Installation Tool Dimensions
VALVE
PORT SIZE,
INCH
5.375
7.00
10.00
A
5.49
7.11
10.12
B
5.07
6.69
9.7
C
5.17-5.19
6.79-6.81
9.80-9.82
Dimensions, Inches (See Figure 6)
D
5.39-5.37
7.01-6.99
10.02-10.00
E
0.10
0.09
0.10
F
0.10
0.10
0.10
G
0.32
0.32
0.32
H
R.06
R.06
R.06
Tool Part
Number
GE22109X012
GE18264X012
GE17914X012
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.
11. 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.
12. Replace all gaskets according to appropriate instructions in the Trim Replacement section of this manual.
13. 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.
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Instruction Manual
D100392X012
EH Valves NPS 8 through 14
June 2017
CAUTION
To avoid excessive leakage and seat erosion, the valve plug must be initially seated with sufficient force to overcome the resistance of the Bore 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 across the valve, this force will adequately drive the valve plug to the seat ring, thus giving the Bore 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.
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 Bore Seal Trim
Trim Removal (Bore 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 the Bore 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.
2. Remove the plug/retainer assembly (with Bore Seal plug seal), cage, and seat ring from the valve body following the appropriate instructions in the Trim Removal section of this manual.
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 Bore 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.
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.
19
EH Valves NPS 8 through 14
June 2017
Figure 7. Stake the Threads of the Bore Seal Retainer
DEFORM THREAD TO
STAKE Bore Seal RETAINER
Instruction Manual
D100392X012
Figure 8. Installing the Bore Seal Plug Seal
Using the Installation Tool
INSTALLATION
TOOL
PISTON
RING
RETAINER
Bore Seal
METAL
PLUG
SEAL
A6779
FLOW DOWN
VALVE
PLUG
Bore Seal
METAL
PLUG
SEAL
HORIZONTAL
REFERENCE
SURFACE
VALVE
PLUG
A6778
FLOW DOWN
NOTE: PRESS THE INSTALLATION TOOL OVER THE VALVE PLUG UNTIL THE TOOL
CONTACTS THE HORIZONTAL REFERENCE SURFACE OF THE VALVE PLUG.
7. Use an appropriate tool such as a flat‐blade screwdriver to pry the Bore Seal plug seal off the plug. Use caution to avoid scratches or other damage to the sealing surfaces where the Bore Seal plug seal makes contact with the valve
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 Bore Seal plug seal contacts the cage, and inspect the sealing surface where the Bore Seal plug seal makes contact with the
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 (Bore Seal Constructions)
appropriate procedures in the Lapping Seats section of this manual.
Remachining Metal Seats (Bore Seal Constructions)
A valve plug with a Bore Seal metal plug seal features two seating surfaces. One seating surface is found where the valve plug contacts the seat ring. The second seating surface is found where the Bore Seal plug seal contacts the upper seating surface in the cage. The cage does not require any machining, even when the plug and / or seat ring have been machined.
Trim Replacement (Bore Seal Constructions)
1. Apply a suitable high‐temperature lubricant to the inside diameter of the Bore Seal plug seal. Also, lubricate the outside diameter of the valve plug where the Bore Seal plug seal must be pressed into the proper sealing position
2. Orient the Bore Seal plug seal for correct sealing action based on the process fluid flow direction through the valve.
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Instruction Manual
D100392X012
EH Valves NPS 8 through 14
June 2017
D
D
Figure 9. Lower (Valve Plug to Seat Ring) and Upper (Bore Seal Plug Seal to Cage) Seating Surfaces
RETAINER
PISTON
RING
CAGE
CAGE PLUG
1
SEATING AREA
SEAT
RING
LOWER SEATING SURFACE
PLUG
UPPER SEATING SURFACE
BORE SEAL
NOTE:
1 UPPER SEATING SURFACE IS THE AREA OF CONTACT BETWEEN THE
BORE SEAL METAL PLUG SEAL AND THE CAGE.
A6780
3. Place the Bore Seal plug seal over the top of the valve plug. The retainer will help guide the Bore Seal down onto the plug. Do not force the Bore Seal over the plug. For flow down constructions, skip to step 5.
plug.
5. Apply a suitable high‐temperature lubricant to the threads on the plug. Then, place the Bore Seal retainer onto the plug and tighten the retainer using an appropriate tool such as a strap wrench. For flow down constructions, skip to step 7.
6. Remove the retainer and then the installation tool. Place the Bore Seal retainer back onto the plug and tighten the retainer using an appropriate tool such as a strap wrench.
secure the Bore Seal retainer.
8. Replace the piston ring(s) following instructions in the Trim Replacement section of this manual.
9. 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 Bore 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 across the valve, this force will adequately drive the valve plug to the seat ring, thus giving the Bore 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.
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.
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EH Valves NPS 8 through 14
June 2017
Instruction Manual
D100392X012
Actuator Mounting
The following procedure assumes that the valve and actuator are fully assembled, but with the actuator removed from the valve. Unless otherwise identified, the parts involved in making up the actuator‐valve stem connection are shown
CAUTION
Never use a wrench or pliers on the valve plug stem and never turn the valve plug stem while the valve plug assembly is seated. A damaged stem could cut the packing and allow leakage. Turning the plug while seated could damage the seats allowing leakage at shutoff.
1. Turn the stem locknuts onto the valve stem.
2. Move the valve plug to the closed position.
actuator.
4. Make sure the actuator stem is fully retracted. With a properly assembled direct‐acting spring‐return actuator, spring compression forces the actuator stem to the fully retracted position. A double‐acting piston actuator or a reverse‐acting spring‐return actuator requires air pressure (or a side‐mounted handwheel) to stroke the actuator stem to the fully retracted position.
5. Extend the actuator stem a distance equal to the travel (as specified on the nameplate).
6. Attach both halves of the stem connector, making sure the connector fully engages both the actuator threads and valve plug stem threads. Install the cap screws in the stem connector, but tighten them only slightly at this time.
7. Stroke the valve to the fully open position. The travel indicator should show the valve to be wide open. If it does not, loosen the screws that hold the travel indicator scale, and shift the scale to the required position.
8. Stroke the valve to the closed position. The travel indicator should show the valve to be closed.
inch) and screw the valve plug stem into or out of the stem connector as follows. To lengthen travel, turn the valve plug stem into the stem connector slightly. To shorten travel, turn the valve plug stem out of the stem connector slightly. (Turning it out too far will limit the stroke.)
10. After adjusting the stem connection so that the actuator will properly stroke the valve plug assembly, tighten the cap screws in the stem connector, tightening the one opposite the anti‐rotation groove first. Then lock the stem locknuts against the stem connector.
Parts Ordering
Each valve 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 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.
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Instruction Manual
D100392X012
EH Valves NPS 8 through 14
June 2017
Parts Kits
ENVIRO‐SEAL Packing Retrofit Kits
Retrofit kits include parts to convert existing packing to the ENVIRO‐SEAL packing system. PTFE kits include keys 200,
201, 211, 212, 214, 215, 217, 218, tag, and cable tie. Graphite kits include keys 200, 201, 207, 208, 209, 210, 211,
212, 214, 216, 217, tag, and cable tie. Duplex kits include keys 200, 201, 207, 209, 211, 212, 214, 215, 216, 217, tag, and cable tie. Stems and packing box constructions that do not meet Emerson stem finish specifications, dimensional tolerances, and design specifications, may adversely alter the performance of the packing kit.
Stem Diameter mm (Inches)
31.8 (1‐1/4)
Yoke Boss Diameter mm (Inches)
127 (5, 5H)
Double PTFE
RPACKXRT052
Kits
Packing Material
Graphite ULF
RPACKXRT302
Duplex
RPACKXRT252
ENVIRO‐SEAL Packing Repair Kits
Repair kits include parts to replace the “soft” packing materials in valves that already have ENVIRO‐SEAL packing arrangements installed or in valves that have been upgraded with ENVIRO‐SEAL retrofit kits. PTFE repair kits include keys 214, 215, and 218. Graphite repair kits include keys 207, 208, 209, 210, and 214. Duplex repair kits include keys
207, 209, 214, and 215.
Stem Diameter mm (Inches)
31.8 (1‐1/4)
Yoke Boss Diameter mm (Inches)
127 (5, 5H)
Double PTFE
RPACKX00232
Kits
Packing Material
Graphite ULF
RPACKX00632
Duplex
RPACKX00332
23
EH Valves NPS 8 through 14
June 2017
Figure 10. Live‐Loaded Packing
Instruction Manual
D100392X012
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
24
Instruction Manual
D100392X012
Figure 11. Bonnet Assembly
EH Valves NPS 8 through 14
June 2017
35A3976‐A
Parts List
Note
Contact your Emerson sales office or Local Business Partner for Part
Ordering information.
Bonnet Assembly (figures 4 and 11)
Key Description
1 Bonnet
If you need a bonnet as a replacement
part, order by valve size and stem
diameter, serial number, and desired
material.
4 Packing Flange Stud
127 mm (5‐inch) yoke boss diameter
(2 req'd)
178 mm (7‐inch) yoke boss diameter
(3 req'd)
5 Packing Flange Nut
127 mm (5‐inch) yoke boss diameter
(2 req'd)
178 mm (7‐inch) yoke boss diameter
(3 req'd)
Key Description
8 Spring or Lantern Ring
10 Washer
11* Packing Box Ring
12* Upper Wiper, felt
13 Packing Follower, 316 stainless
steel
14 Pipe Plug (not shown)
Steel
316 stainless steel
14 Lubricator, steel (not shown)
14 Lubricator/Isolating Valve (not shown)
25 Actuator Mounting Stud, steel
(8 req'd)
26 Hex Nut, steel (8 req'd)
30* Lower Wiper, PTFE
31* Male Adapter, PTFE
32* Female Adapter, PTFE/glass
*Recommended spare parts 25
EH Valves NPS 8 through 14
June 2017
Instruction Manual
D100392X012
Valve Assembly (figures 12, 13, and 14)
Key Description Key Description
1 Valve Body
If you need a valve body as a replace‐
ment part, order by valve size, serial
number, and desired material.
2* Cage
4* Valve Plug Stem
5* Pin, stainless steel
For use with 31.8 mm (1‐1/4 inch)
valve plug stem
For use with 50.8 mm (2‐inch)
valve plug stem
7 Seat Ring Cap Screw
8* Piston Ring, graphite
For all EHD valves (3 req'd)
except those with Whisper Trim III
cages
NPS 8 and 10 valves
CL1500
CL1500 high‐temperature
CL2500
CL2500 high‐temperature
NPS 12 and 14 valves
CL1500
CL1500 high‐temperature
CL2500
CL2500 high‐temperature
For EHD valve with Whisper
Trim III cage only (3 req'd for Level
A, B or C and 4 req'd for Level D)
NPS 8 and 10 valves
CL1500
CL1500 high‐temperature
CL2500
CL2500 high‐temperature
NPS 12 and 14 valves
CL1500
CL1500 high‐temperature
CL2500
CL2500 high‐temperature
8* Seal Ring, N10276/PTFE (for use only
with EHT valve)
For valve with other than Whisper
Trim III cage
NPS 8 and 10 valves
CL1500
CL2500
NPS 12 and 14 valves
CL1500
CL2500
For valve with Whisper Trim III cage
NPS 8 and 10 valves
CL1500
CL2500
NPS 12 and 14 valves
CL1500
CL2500
9* Backup Ring (for use only with
EHT valve)
For valve with other than Whisper Trim III cage
NPS 8 and 10 valves
CL1500
316 stainless steel
416 stainless steel
CL2500
316 stainless steel
416 stainless steel
NPS 12 and 14 valves
CL1500
316 stainless steel
416 stainless steel
CL2500
316 stainless steel
416 stainless steel
For valve with Whisper Trim III cage
NPS 8 and 10 valves
CL1500
316 stainless steel
N06600
17‐4PH stainless steel, H1075
heat‐treated
17‐4PH stainless steel, H1150 dbl
heat‐treated
(for sour gas service)
CL2500
316 stainless steel
N06600
17‐4PH stainless steel, H1075
heat‐treated
17‐4PH stainless steel, H1150 dbl
heat‐treated
(for sour gas service)
NPS 12 and 14 valves
CL1500
316 stainless steel
N06600
17‐4PH stainless steel, H1075
heat‐treated
17‐4PH stainless steel, H1150 dbl
heat‐treated
(for sour gas service)
CL2500
316 stainless steel
N06600
17‐4PH stainless steel, H1075
heat‐treated
17‐4PH stainless steel, H1150 dbl
heat‐treated
(for sour gas service)
10* Retaining Ring, 302 stainless steel (for EHT valve only)
NPS 8 and 10 valves
CL1500
CL2500
NPS 12 and 14 valves
CL1500
CL2500
26 *Recommended spare parts
Instruction Manual
D100392X012
Figure 12. Fisher EHD Valve
EH Valves NPS 8 through 14
June 2017
FLOW DIRECTION FOR ALL TRIMS EXCEPT THOSE WITH WHISPER TRIM III CAGES
APPLY LUBRICANT
VIEW A
59A9171‐A
O‐RING
CONSTRUCTION
GASKET
CONSTRUCTION
COMPLETE VALVE SHOWING VALVE PLUG WITHOUT DIVERTER CONE
59A9172‐A
C0632‐1
DIVERTER CONE DETAIL
59A9180‐A
WHISPER TRIM
LEVEL A, B, OR C DETAIL
59A9182‐A
WHISPER TRIM
LEVEL D DETAIL
27
EH Valves NPS 8 through 14
June 2017
Figure 13. Belleville Washer Body-to-Bonnet Bolting
SHOWN IN
UNCOMPRESSED
“FREE” POSITION
BONNET
GE60624-C
Instruction Manual
D100392X012
28
Instruction Manual
D100392X012
Figure 14. Fisher EHT Valve
EH Valves NPS 8 through 14
June 2017
FLOW DIRECTION FOR ALL TRIMS EXCEPT THOSE WITH WHISPER TRIM III CAGES
APPLY LUBRICANT
59A9177‐A
VIEW B
O‐RING GASKET
CONSTRUCTION CONSTRUCTION
VIEW A
COMPLETE VALVE SHOWING VALVE PLUG WITHOUT DIVERTER CONE
59A9178‐A
C0633‐1
DIVERTER CONE DETAIL
59A9184‐A
WHISPER TRIM
LEVEL A, B, OR C DETAIL
59A9186‐A
WHISPER TRIM
LEVEL D DETAIL
29
EH Valves NPS 8 through 14
June 2017
Key Description
11* Cage Gasket (2 req'd)
For standard service, silver pl
N04400
NPS 8 and 10 valves
CL1500
CL2500
NPS 12 and 14 valves
CL1500
CL2500
For sour gas service, tin pl N04400
NPS 8 and 10 valves
CL1500
CL2500
NPS 12 and 14 valves
CL1500
CL2500
12* Seat Ring Gasket
Spiral wound N06600
NPS 8 and 10 valves
CL1500
CL2500
NPS 12 and 14 valves
CL1500
CL2500
12* Seat Ring O‐Ring
NPS 8 and 10 valves
CL1500
Nitrile
Ethylene/propylene
Fluorocarbon
CL2500
Nitrile
Ethylene/propylene
Fluorocarbon
NPS 12 and 14 valves
CL1500
Nitrile
Ethylene/propylene
Fluorocarbon
CL2500
Nitrile
Ethylene/propylene
Fluorocarbon
13 Bonnet Stud (12 required)
Instruction Manual
Figure 15. Fisher EHT Valve Using
PEEK Anti‐Extrusion Rings
D100392X012
FLOW UP
A7220
Key Description
14 Hex Nut (12 req'd)
15 Flow Arrow, stainless steel
16 Drive Screw, stainless steel
(2 req'd)
17 Nameplate, stainless steel
18 Drive Screw, stainless steel
(6 req'd)
(not furnished with valve)
29 Flat Washer (12 req'd)
30* Piston Ring, graphite (for EHD
valve with Level D Whisper Trim III
cage only)
NPS 8 and 10 valves
CL1500
CL2500
NPS 12 and 14 valves
CL1500
CL2500
33 Belleville Washer, N07718 (12 req'd)
63 Anti‐Extrusion Ring
FLOW DOWN
30 *Recommended spare parts
Instruction Manual
D100392X012
Actuator Groups by Type Number
Group 100
127 mm (5‐Inch) Yoke Boss
472
473
474
476
585C
657
1008
Group 101
127 mm (5‐Inch) Yoke Boss
667
Group 404
127 mm (5‐Inch) Yoke Boss
667
667‐4
Group 405
127 mm (5‐Inch) Yoke Boss
657 MO
657‐4 MO
EH Valves NPS 8 through 14
June 2017
Group 406
127 mm (5‐Inch) Yoke Boss
667 MO
667‐4 MO
Group 407
127 mm (5‐Inch) Yoke Boss
474
585C
657
Group 408
127 mm (5H) and 178 mm (7‐Inch) Yoke Boss
657 Size 100
1008
Group 409
127 mm (5H) and 178 mm (7‐Inch) Yoke Boss
667 Size 100
Group 802
127 mm (5‐Inch) Yoke Boss
585C
31
EH Valves NPS 8 through 14
June 2017
Instruction Manual
D100392X012
Neither Emerson, Emerson Automation Solutions, nor any of their affiliated entities assumes responsibility for the selection, use or maintenance of any product. Responsibility for proper selection, use, and maintenance of any product remains solely with the purchaser and end user.
Fisher, Whisper Trim, Cavitrol, and ENVIRO-SEAL are marks owned by one of the companies in the Emerson Automation Solutions business unit of Emerson
Electric Co. Emerson Automation Solutions, Emerson, and the Emerson logo are trademarks and service marks of Emerson Electric Co. All other marks are the property of their respective owners.
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
32
1979, 2017 Fisher Controls International LLC. All rights reserved.
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