Table of Contents
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Instruction Manual
D100399X012
Fisher
EWD, EWS, and EWT Valves
™
through NPS 12x8
Contents
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Introduction
Scope of Manual
This instruction manual includes installation, maintenance, and parts information for Fisher NPS 4x2 through 12x8
EWD, EWS, and EWT valves (figure 1). Refer to separate manuals for instructions covering the actuator and
accessories.
Do not install, operate, or maintain an EW 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
proceeding.
www.Fisher.com
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Figure 1. Fisher NPS 12x6 EW Series Valve With
667 Actuator
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Emerson sales office
or Local Business Partner before
EW Valve
July 2017
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Table of Contents
Related Manuals for Emerson Fisher EWD
Summary of Contents for Emerson Fisher EWD
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Page 1: Table Of Contents
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. - Page 2 3. There are two different CL900 NPS 8x6 valve bodies, one for use only with Cavitrol III cages and the other for use with all other constructions. A CL900 valve with Cavitrol III cage can take full CL900 pressure drops. For information on other NPS 8x6 constructions that can take full CL900 pressure drops, contact your Emerson sales office. All other trim constructions are limited to...
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Page 3: Description
Instruction Manual EW Valve D100399X012 July 2017 Figure 2. Cutaway Detail of the Fisher WhisperFlo Trim, Valve Body Typical W6825‐1 Description These single‐port globe‐style valves have cage guiding, clamped seat rings, and push‐down‐to‐close valve plug action. Valve configurations are as follows: EWD: Balanced valve plug with metal‐to‐metal seating for all general applications over a wide range of pressure drops and temperatures. -
Page 4: Educational Services
NPS 10x8 and 12x8 valves with optional double piston rings) IV (optional for NPS 6x4 through 12x8 valves with optional multiple graphite piston rings) Metal IV (standard) V (optional, consult your Emerson sales office or Local Business Partner) PTFE EWT with all except PTFE Standard Air Test (maximum leakage is 0.05 mL/min/psid/inch port diameter) - Page 5 Other positions may result in uneven valve plug and cage wear and in improper operation. With some valves, the actuator may also need to be supported when it is not vertical. For more information, consult your Emerson sales office or Local Business Partner. Note If installing a valve with small internal flow passages, such as with WhisperFlo, Whisper Trim, or Cavitrol cages, consider installing an upstream strainer to prevent the lodging of particles in these passages.
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Page 6: Inverted Globe Valve Applications (Actuator Below Valve)
Shrink‐fit pieces and threaded connections may also loosen. In general, if post weld heat treating is to be performed, remove all trim parts. Contact your Emerson sales office or Local Business Partner for additional information. -
Page 7: Maintenance
Instruction Manual EW Valve D100399X012 July 2017 2. Provide adequate support to the bonnet while removing the bonnet nuts. 3. Be aware that the bonnet/plug/cage may tip over as they are lowered from the valve body. Make provision to prevent tipping. 4. -
Page 8: Packing Lubrication
Instruction Manual EW Valve July 2017 D100399X012 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 because the used gasket may not seal properly. Figure 3. - Page 9 Instruction Manual EW Valve D100399X012 July 2017 Figure 4. PTFE V‐Ring Packing Arrangements UPPER WIPER UPPER WIPER (KEY 12) (KEY 12) PACKING PACKING FOLLOWER FOLLOWER (KEY 13) FEMALE (KEY 13) FEMALE ADAPTOR ADAPTOR PACKING RING PACKING RING WASHER (KEY 10) MALE MALE ADAPTOR...
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Page 10: Packing Maintenance
Instruction Manual EW Valve July 2017 D100399X012 Packing Maintenance Note For valves with ENVIRO‐SEAL live‐loaded packing, see the Fisher instruction manual, ENVIRO‐SEAL Packing System for Sliding‐Stem Valves, D101642X012, for packing instructions. For valves with HIGH‐SEAL live‐loaded packing, see the Fisher instruction manual, HIGH‐SEAL Live‐Loaded Packing System, D101453X012, for packing instructions. - Page 11 Instruction Manual EW Valve D100399X012 July 2017 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.
- Page 12 Instruction Manual EW Valve July 2017 D100399X012 6. Remove the locknut and separate the valve plug and stem from the bonnet. Set the parts on a protective surface to prevent damage to gasket or seating surfaces. 7. Remove the bonnet gasket (key 10, figure 22 through 24), and cover the opening in the valve body to protect the gasket surface and prevent foreign material from getting into the valve body cavity.
- Page 13 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.
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Page 14: Trim Maintenance
12x8 CL900 2712 2000 1. Determined from laboratory tests. 2. For other materials, contact your Emerson sales office or Local Business Partner for torques. Table 6. Recommended Torque for Packing Flange Nuts GRAPHITE TYPE PACKING PTFE TYPE PACKING VALVE STEM... -
Page 15: Trim Removal
Instruction Manual EW Valve D100399X012 July 2017 CAUTION In the following applicable procedures, to avoid damaging parts, do not grip the bellows shroud or other parts of the stem/bellows assembly. Grip only the flat areas on the stem where it extends out of the top of the bellows shroud. For C‐seal construction, see the appropriate C‐seal sections in this instruction manual. -
Page 16: Lapping Metal Seats
Instruction Manual EW Valve July 2017 D100399X012 Figure 7. TSO (Tight Shutoff Trim), Detail of Protected Soft Seat OUTER PLUG INNER PLUG CAGE PROTECTED SOFT SEAT SEAT RING A7088 7. For constructions other than TSO (tight shutoff trim), remove the seat ring (key 9) or disk seat (key 22), seat ring gasket (key 13), and the seat ring adaptor (key 5) and adaptor gasket (key 14) where used in a restricted‐capacity construction. -
Page 17: Valve Plug Maintenance
Instruction Manual EW Valve D100399X012 July 2017 Figure 8. Typical Balanced TSO Trim VALVE PLUG SEAL A7096 PROTECTED SOFT SEAT Except with respect to the ENVIRO‐SEAL Bellows Seal Bonnet assembly, with metal seat constructions, seating surfaces of the valve plug and seat ring (keys 2 and 9, figures 24 through 26) can be lapped for improved shutoff. (Deep nicks should be machined out rather than ground out.) Use a good quality lapping compound of a mixture of 280 to 600‐grit. - Page 18 Instruction Manual EW Valve July 2017 D100399X012 For the EWD carbon‐filled PTFE piston ring, the ring is split in one place. If there is visible damage, spread the ring slightly, and remove it from the groove in the valve plug. To install a carbon‐filled PTFE piston ring, spread the ring apart slightly at the split, and install it over the stem and into the groove in the valve plug.
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Page 19: Trim Replacement
Instruction Manual EW Valve D100399X012 July 2017 3. To replace the adaptor (key 24, figure 21) on ENVIRO‐SEAL bellows seal bonnets, place the plug stem assembly and valve plug in a soft‐jaw chuck or other type of vise so that the jaws grip a portion of the valve plug that is not a seating surface. -
Page 20: Retrofit: Installing C-Seal Trim
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 Emerson or a tool could be manufactured following the dimensions given in figure 10. - Page 21 Instruction Manual EW Valve D100399X012 July 2017 Figure 9. Fisher EWD with C‐seal Trim FLOW DOWN FLOW UP VIEW A A6790 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.
- Page 22 Instruction Manual EW Valve July 2017 D100399X012 FOR VALVE DIMENSIONS, mm PLUGS Part Number (See Drawing Below) FITTING (To Order PORT SIZE A Tool) (Inches) 52.324 ‐ 52.680 ‐ 55.118 ‐ 2.875 82.55 4.978 ‐ 5.029 3.708 ‐ 3.759 41.148 70.891 ‐...
- Page 23 Instruction Manual EW Valve D100399X012 July 2017 Figure 11. Installing the C‐seal Plug Seal Using the Installation Tool INSTALLATION TOOL C‐SEAL METAL PLUG VALVE SEAL PLUG HORIZONTAL REFERENCE SURFACE FLOW DOWN NOTE: PRESS INSTALLATION TOOL OVER VALVE PLUG UNTIL THE TOOL CONTACTS THE HORIZONTAL REFERENCE SURFACE OF THE VALVE PLUG.
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Page 24: Replacement Of Installed C-Seal Trim
Instruction Manual EW Valve July 2017 D100399X012 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 applying the full actuator load. -
Page 25: Lapping Metal Seats (C-Seal Constructions)
Instruction Manual EW Valve D100399X012 July 2017 Figure 13. Lower (Valve Plug to Seat Ring) and Upper (C‐seal Plug Seal to Cage) Seating Surfaces RETAINER C‐seal METAL PLUG SEAL VALVE PLUG CAGE UPPER SEATING SURFACE CAGE PLUG SEAT RING NOTE: UPPER SEATING SURFACE IS THE AREA OF CONTACT BETWEEN LOWER SEATING SURFACE THE C‐seal METAL PLUG SEAL AND THE CAGE. -
Page 26: Trim Replacement (C-Seal Constructions)
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 Emerson or a tool could be manufactured following the dimensions given in figure 10. -
Page 27: Enviro-Sealt Bellows Seal Bonnet
Instruction Manual EW Valve D100399X012 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 11). - Page 28 Instruction Manual EW Valve July 2017 D100399X012 4. Inspect the existing valve plug. If the plug is in good condition, it can be reused with the new ENVIRO‐SEAL stem/bellows assembly. To remove the existing valve plug from the stem, first, place the existing plug stem assembly in a soft‐jaw chuck or other type of vise so that the jaws grip a portion of the valve plug that is not a seating surface.
- Page 29 Instruction Manual EW Valve D100399X012 July 2017 Figure 15. PTFE Packing Arrangement for Use in Fisher ENVIRO‐SEAL Bellows Seal Bonnets UPPER WIPER (KEY 12) BUSHING (KEY 13) FEMALE ADAPTOR PACKING RING PACKING SET MALE ADAPTOR (KEY 6) SPACER (KEY 8) SPACER (KEY 8) THRUST RING...
- Page 30 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.
- Page 31 Instruction Manual EW Valve D100399X012 July 2017 15. Install the travel indicator parts and stem locknuts; mount the actuator on the valve body according to the procedure in the appropriate actuator instruction manual. Replacement of an Installed ENVIRO‐SEAL Bellows Seal Bonnet (Stem/Bellows Assembly) 1.
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Page 32: Parts Ordering
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... -
Page 33: Parts Kits
Instruction Manual EW Valve D100399X012 July 2017 Parts Kits Gasket Kits Gasket Kits (includes keys 10, 12, 13, and 53; plus 11 and 14 for restricted trim) Standard Trim Cage Cavitrol III - 2 Stage Cage Whisper Trim I Cage Whisper Trim III Cage Cavitrol III - 1 Stage Cage WhisperFlo Cage... - Page 34 18 for PTFE packing key numbers, figure 19 for Graphite ULF packing key numbers, and figure 20 for duplex packing key numbers. Stems and packing box constructions that do not meet Emerson stem finish specifications, dimensional tolerances, and design specifications, may adversely alter the performance of this packing kit.
- Page 35 Instruction Manual EW Valve D100399X012 July 2017 Figure 17. Typical Fisher HIGH‐SEAL Packing System Figure 19. Typical Fisher ENVIRO‐SEAL Packing System with Graphite ULF Packing STUD (KEY 200) SCREW HEX NUT (KEY 204) (KEY 212) PACKING LOAD FLANGE SCALE (KEY 201) (KEY 205) INDICATOR SPRING...
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Page 36: Parts List
Size 4x2 w/ 12.7 mm (1/2 inch) stem (2 req'd) Part numbers are shown for recommended spares only. For part Size 6x4x2‐1/2, 6x4, & 8x4 numbers not shown, contact your Emerson sales office or Local Business w 12.7 mm (1/2 inch) stem (2 req'd) Partner. 9*... - Page 37 Instruction Manual EW Valve D100399X012 July 2017 Description Part Number Description Part Number N06022 trim, N06022 S31600 for chrome moly steel or bellows 316 SST bonnet Size 4x2 w/ 12.7 mm (1/2 inch) stem 32B4226X042 ENVIRO‐SEAL bellows seal pipe plug ...
- Page 38 Instruction Manual EW Valve July 2017 D100399X012 Figure 21. Typical Fisher Bonnet with Single PTFE V‐Ring Packing Set 30A9425-A DETAIL OF 5‐INCH (127 mm) YOKE BOSS ACTUATOR BOLTING E0201 PLAIN BONNET 35A3976-A DETAIL OF NPS 12x8 CL900 YOKE BOSS BOLTING APPLY LUB ENVIRO-SEAL 42B3947-A...
- Page 39 Whisper Trim I cages only. For part numbers for valves with WhisperFlo, 12.7 mm (1/2 inch) stem dia 1B599635072 Whisper Trim III, or Cavitrol III cages, contact your Emerson sales office 19.1 mm (3/4 inch) stem dia 1F723635072 or Local Business Partner.
- Page 40 Instruction Manual EW Valve July 2017 D100399X012 Figure 22. Fisher EWD Valve through NPS 12x6 with Optional Drain Plug DETAIL OF MULTIPLE 57A3966‐A PISTON RING FOR CLASS IV SHUTOFF RESTRICTED TRIM DETAIL 30A9547‐G FLOW DIRECTION STD TRIM WHISPER TRIM CAVITROL TRIM...
- Page 41 12A3332X022 Size 10x8 or 12x8 valve Cage Retainer, required for Whisper Trim III and Cavitrol III cages CF8M 20A4467X012 only. See your Emerson Automation Solutions sales office. R30006 20A4467X022 Bonnet Spacer Disk for PTFE‐seat EWS or EWT, PTFE Anti‐seize lubricant (not furnished) Size 4x2 valve...
- Page 42 Instruction Manual EW Valve July 2017 D100399X012 Figure 23. Fisher EWS Valve through NPS 12x6 FLOW DIRECTION CAVITROL TRIM STD TRIM WHISPER TRIM COMPLETE VALVE ASSEMBLY WITH METAL SEAT WITH OPTIONAL DRAIN PLUG 31A9274‐C ELASTOMERIC SEAT DETAIL...
- Page 43 Instruction Manual EW Valve D100399X012 July 2017 Figure 24. Typical Fisher EWT Valve Assemblies FLOW DIRECTION WHISPER TRIM STD TRIM CAVITROL TRIM VIEW A VIEW A FLOW UP FLOW DOWN 43A8590‐B CORRECT SPRING‐LOADED SEAL 43A8590‐B RING ORIENTATION 47.6 TO 136.5 mm (1.875 TO 5.375 INCH) PORT DIAMETERS 43A8592‐B NPS 4x2 THROUGH 12x6 VALVE...
- Page 44 Instruction Manual EW Valve July 2017 D100399X012 Figure 25. FGM Gasket Detail with Optional Drain Plug RESTRICTED‐TRIM DETAIL FULL‐CAPACITY TRIM DETAIL FGM GASKETS ALSO MUST BE INSTALLED WHERE REQUIRED IN SEAT RING AREA PER FIGURE 22, 23, OR 24 A2713*...
- Page 45 Instruction Manual EW Valve D100399X012 July 2017 Figure 26. NPS 4x2 Through 12x8 Fisher Valves with 1‐Stage Cavitrol III Cage FLOW DIRECTION 58A1012‐B 54A8146‐B VIEW A VIEW A NPS 8x6 THROUGH 12x6 NPS 4x2 THROUGH 8x4 VIEW A VALVES VALVES APPLY LUB 58A1012‐B NPS 4x2 THROUGH 12x6 VALVES...
- Page 46 Instruction Manual EW Valve July 2017 D100399X012 Figure 27. NPS 4x2 Through 12x8 Fisher Valves with 2‐Stage Cavitrol III Cage FLOW DIRECTION VIEW A VIEW A 55A8886‐A NPS 12x8 VALVE 54A7497‐B NPS 4x2 THROUGH 12x6 VALVES WITH OPTIONAL DRAIN PLUG APPLY LUB NPS 8x6 CL900 VALVE GASKETING DETAIL...
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Page 47: D100399X012 July
Instruction Manual EW Valve D100399X012 July 2017 Figure 28. Typical Fisher EWD Valve with Whisper Trim III Cage FLOW DIRECTION 30A9547‐G 52A3328‐C COMPLETE VALVE ASSEMBLY WITH WHISPER TRIM III CAGE, SINGLE GRAPHITE PISTON RING, AND OPTIONAL DRAIN PLUG... - Page 48 Instruction Manual EW Valve July 2017 D100399X012 Figure 29. Typical Fisher WhisperFlo Trims BONNET SPACER CAGE RETAINER WhisperFlo CAGE DISK RETAINER DISK DISK SEAT SEAT RING EWT WITH EWD CLASS IV SPRING‐LOADED SEAL RING (METAL SEAT) (SOFT SEAT) BONNET SPACER CAGE RETAINER WhisperFlo CAGE DISK RETAINER...
- Page 49 Instruction Manual EW Valve D100399X012 July 2017 Key 2 Fisher EWD Valve Plug STEM DIA, mm (INCH) VALVE SIZE, NPS MATERIAL 12.7 (1/2) 19.1 (3/4) 25.4 (1) 31.8 (1‐1/4) Hardened S41600 (416 SST) 1V657546172 1V657646172 ‐ ‐ ‐ ‐ ‐ ‐...
- Page 50 Instruction Manual EW Valve D100399X012 July 2017 Key 2 Fisher EWS Valve Plug STEM DIA, mm (INCH) VALVE SIZE, NPS MATERIAL 12.7 (1/2) 19.1 (3/4) 25.4 (1) 31.8 (1‐1/4) Hardened S41600 (416 SST) 11A5214X012 11A5215X012 ‐ ‐ ‐ ‐ ‐ ‐ S31600 (316 SST) 11A5214X022 11A5215X022...
- Page 51 Instruction Manual EW Valve D100399X012 July 2017 Key 2 Valve Plug for Fisher EWT with Two‐Piece Seal Ring STEM DIA, mm (INCH) VALVE SIZE, NPS MATERIAL 12.7 (1/2) 19.1 (3/4) 25.4 (1) 31.8 (1‐1/4) Hardened S41600 (416 SST) 1V657546172 1V657646172 ‐...
- Page 52 Instruction Manual EW Valve D100399X012 July 2017 C‐seal Parts for Fisher EWD Valve (Keys 3*, 2*, 9*, 64*, 6*, and 7*) VALVE PORT STEM PLUG/ TRAVEL CAGE SEAT RING C‐seal PISTON RING STEM SIZE RETAINER CHARACTER‐ TRIM ISTIC Inch Inch...
- Page 53 Instruction Manual EW Valve D100399X012 July 2017 C‐seal Parts for Fisher EWD Valve (Keys 3*, 2*, 9*, 64*, 6*, and 7*) (continued) VALVE PORT STEM PLUG/ TRAVEL CAGE SEAT RING C‐seal PISTON RING STEM SIZE RETAINER CHARACTER‐ TRIM ISTIC Inch...
- Page 54 Instruction Manual EW Valve D100399X012 July 2017 C‐seal Parts for Fisher EWD Valve (Keys 3*, 2*, 9*, 64*, 6*, and 7*) (continued) VALVE PORT STEM PLUG/ TRAVEL CAGE SEAT RING C‐seal PISTON RING STEM SIZE RETAINER CHARACTER‐ TRIM ISTIC Inch...
- Page 55 Instruction Manual EW Valve D100399X012 July 2017 Key 3 Cage (except for Whisper Trim III and Cavitrol III constructions) CF8M Standard (316 SST), R30006 Valve Size, NPS Cage Style Electroless Stainless Steel (Alloy 6) Nickel Coating Quick‐opening 2U223433272 2U740448932 2U223439102 Equal percentage 2U223733272 2U741048932...
- Page 56 Instruction Manual EW Valve D100399X012 July 2017 Key 7 Valve Stem (except for Cavitrol III constructions) BONNET STEM DIA Style 2 ACTU‐ Plain Style 1 Extension VALVE SIZE, NPS Extension ATOR GROUP S31600 S31600 S31600 Inch S31600 S31600 (316 SST) Cr Pl Cr Pl 12.7...
- Page 57 Instruction Manual EW Valve D100399X012 July 2017 Key 7 Valve Stem (except for Cavitrol III constructions) (continued) BONNET STEM DIA Style 2 ACTU‐ Plain Style 1 Extension VALVE SIZE, NPS Extension ATOR GROUP S31600 S31600 S31600 Inch S31600 S31600 (316 SST) Cr Pl Cr Pl 19.1...
- Page 58 Instruction Manual EW Valve D100399X012 July 2017 Keys 10 , 11*, 12*, 13*, 14*, and 53* Gaskets and Shims Standard Trim Cage Cavitrol III - 2 Stage Cage Whisper Trim I Cage Whisper Trim III Cage Cavitrol III - 1 Stage Cage WhisperFlo Cage Valve Size, NPS Key Number...
- Page 59 Instruction Manual EW Valve D100399X012 July 2017...
- Page 60 Fisher, ENVIRO-SEAL, WhisperFlo, Whisper Trim, Cavitrol, and easy-e 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.