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Instruction Manual
D104191X012
Fisher
CCV-N Control Valves
™
Contents
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Introduction
Scope of Manual
This instruction manual includes installation, maintenance and parts information for NPS 2 through 4 CCV-N fuel gas
control valves. These valves are used in gas turbines which meter the fuel gas to the combustion chamber of the
turbine and provide linear flow with the ability to choke very quickly at a low pressure drop. Refer to separate manuals
for instructions covering the actuator and accessories.
Do not install, operate, or maintain CCV-N 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
proceeding.
www.Fisher.com
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Figure 1. Fisher NPS 2 CCV-N
X1430
Emerson sales office
CCV-N Valve
October 2018
before
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Table of Contents
Related Manuals for Emerson Fisher NPS 2 CCV-N
Summary of Contents for Emerson Fisher NPS 2 CCV-N
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Page 1: Table Of Contents
™ Contents Figure 1. Fisher NPS 2 CCV-N Introduction ....... . . -
Page 2: Specifications
Educational Services For information on available courses for Fisher CCV-N fuel gas control valves, 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: education@emerson.com... -
Page 3: Installation
Other positions may result in uneven valve plug, seal set, seat ring, seat ring retainer, packing wear and improper operation. For more information, consult your Emerson sales office. 4. It is recommended the valve upstream pipe inside diameter should match or be close to valve body inlet inside diameter to reduce valve inlet turbulence. -
Page 4: Maintenance
Instruction Manual CCV-N Valve October 2018 D104191X012 Valves with ENVIRO‐SEAL live‐loaded packing or HIGH‐SEAL live‐loaded packing will not require this initial re‐adjustment. See the Fisher instruction manuals, 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. -
Page 5: Packing Maintenance
Instruction Manual CCV-N Valve D104191X012 October 2018 Packing Maintenance Note For valves with ENVIRO‐SEAL packing, see the Fisher instruction manual, ENVIRO‐SEAL Packing System for Sliding‐Stem Valves, D101642X012, for packing instructions. If there is undesirable packing leakage, first try to limit the leakage and establish a stem seal by tightening the packing flange nuts. - Page 6 Instruction Manual CCV-N Valve October 2018 D104191X012 Figure 2. Packing Arrangements GRAPHITE LEAK-OFF DOUBLE PTFE DOUBLE PTFE PACKING FOLLOWER (KEY 13) UPPER WIPER (KEY 12) GRAPHITE RIBBON PACKING PACKING RING (KEY 7) FOLLOWER (KEY 13) FEMALE ADAPTER LANTERN RING PACKING RING (KEY 8) MALE GRAPHITE FILAMENT...
- Page 7 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 8: Trim Maintenance
Instruction Manual CCV-N Valve October 2018 D104191X012 Table 3. Recommended Torque for Packing Flange Nuts STEM SIZE MINIMUM TORQUE MAXIMUM TORQUE Packing Rating inch Lbf‐in Lbf‐in PTFE Packing 12.7 CL300 CL300 Graphite Leak-off 12.7 Packing CL600 14. Mount the actuator on the valve assembly and reconnect the actuator and valve stem according to the procedure in the appropriate actuator instruction manual. -
Page 9: Nps 4 Balanced Bore-Seal Maintenance
Instruction Manual CCV-N Valve D104191X012 October 2018 5. Mark the orientation between valve body (key 1, figures 6, 7, 8, 12, and 13) and seat ring retainer (key 3, figure figures 6, 7, 8, 12, and 13). Remove the seat ring retainer, valve plug and stem assembly, and associated gaskets (key 10, 12, figures 6, 7, 8, 12, and 13). -
Page 10: Valve Plug Maintenance
Due to the design requirement of this product, the valve and stem are precision-matched and the stem is not replaceable. If damaged, the valve plug and stem must be replaced as an assembly. Contact your Emerson sales office for parts replacement. - Page 11 NPS 4 Balanced Bore-seal Valve Plug Maintenance Except where indicated, NPS 4 Balanced Bore-seal Valve Plug key numbers are referenced in figure 14. Contact your Emerson sales office for Bore Seal trim replacement. Note Due to the design requirement of this product, the valve and stem are precision-matched and the stem is not replaceable. If damaged, the valve plug and stem must be replaced as an assembly.
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Page 12: Assembly
Instruction Manual CCV-N Valve October 2018 D104191X012 inch into the metal to remove the staking. The seat ring retainer and valve plug should be protected during processing. 2. Loosen the plug retainer (key 4) with strap wrench or spanner wrench and remove plug retainer from the valve plug (key 2). - Page 13 Instruction Manual CCV-N Valve D104191X012 October 2018 5. For NPS 2 and 3 balanced design, carefully insert the bottom end of plug stem seal assembly into the top of the seat ring retainer (key 3) through the inner bore as shown in figure 10. Make sure there is no damage done to the seals. Slide the plug stem seal assembly into the seat ring retainer (key 3) until the top of the plug stem seal assembly is even with the top of the seat ring retainer (key 3).
- Page 14 D104191X012 CAUTION Do not force the actuator to stroke the valve stem if actuator stem and valve stem are misaligned with each other, which might damage the valve trim and packing. Contact your Emerson sales office for further troubleshooting assistance.
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Page 15: Parts Ordering
CAUTION Use only genuine Fisher replacement parts. Components that are not supplied by Emerson 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. - Page 16 Instruction Manual CCV-N Valve October 2018 D104191X012 Seal Ring Kits Table 7. Seal Ring Kits Valve Size Port Size Design Application Key Numbers Kits ≤600°F 1.50 Balanced 8, 63, 24, 33 RSEALX00262 1.00 Unbalanced >600°F Not Applicable Not Applicable NPS 2 1.60 Unbalanced >600°F...
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Page 17: Parts List
CCV-N Valve D104191X012 October 2018 Parts List Valve Assembly (figures 6, 7, 8, 12, 13, and 14) Note Contact your Emerson sales office for Part Ordering information. Description Valve Body Plug Seat Ring Retainer Bonnet Assembly Plug Retainer (figures 3, 4 and 5) - Page 18 Instruction Manual CCV-N Valve October 2018 D104191X012 Figure 3. Bonnet and Single PTFE Packing Arrangements with Key Numbers APPLY LUB/SEALANT NOTE: KEY 14 PIPE PLUG IS NOT APPLICABLE FOR OPTIONAL NON-TAPPED BONNET.
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Page 19: D104191X012 October
Instruction Manual CCV-N Valve D104191X012 October 2018 Figure 4. Bonnet and Graphite Leak-Off Packing Arrangements with Key Numbers APPLY LUB/SEALANT NOTE: KEY 14 PIPE PLUG IS NOT APPLICABLE FOR OPTIONAL NON-TAPPED BONNET. - Page 20 Instruction Manual CCV-N Valve October 2018 D104191X012 Figure 5. Bonnet and Enviro-Seal Graphite ULF Packing Arrangement with Key Numbers LOW PRESSURE SIDE HIGH PRESSURE SIDE APPLY LUB/SEALANT NOTE: PARTS SHOULD BE IDENTIFIED BY PART NUMBER OR SHAPE AS SHOWN BEFORE INSTALLATION. KEY 210 SHOULD BE INSTLALED WITH ITS CONCAVE SURFACE FACING TO THE HIGH PRESSURE SIDE AS SHOWN.
- Page 21 Instruction Manual CCV-N Valve D104191X012 October 2018 Figure 6. NPS 2 Balanced CCV-N Valve Assembly with Key Numbers for Application Up to and Including 316_C (600_F) VIEW B VIEW A VIEW A APPLY LUB/SEALANT VIEW B...
- Page 22 Instruction Manual CCV-N Valve October 2018 D104191X012 Figure 7. NPS 3 Balanced CCV-N Valve Assembly with Key Numbers for Applications Up to and Including 316_C (600_F) VIEW B VIEW A VIEW A APPLY LUB/SEALANT VIEW B...
- Page 23 Instruction Manual CCV-N Valve D104191X012 October 2018 Figure 8. NPS 4 Balanced CCV-N Valve Assembly with Key Numbers for Applications Up to and Including 316_C (600_F) VIEW B VIEW A VIEW A VIEW B APPLY LUB/SEALANT...
- Page 24 Instruction Manual CCV-N Valve October 2018 D104191X012 Figure 9. Non-Bore-Seal NPS 4 CCV-N Maintenance for Application Up to and Including 316_C (600_F) NEW PIN IN NEW USED PIN HOLE PIN HOLE Figure 10. CCV-N NPS 2 and 3 Assembly — Insert of Plug Stem Seal Assembly through the Top of the Seat Ring Retainer PLUG STEM SEAL ASSEMBLY...
- Page 25 Instruction Manual CCV-N Valve D104191X012 October 2018 Figure 11. CCV-N NPS 4 Assembly for Application Up to and Including 316_C (600_F) (Except Bore-Seal Trim) — Insert of Plug Stem Seal Assembly through the Bottom of the Seat Ring Retainer SEAT RING RETAINER PLUG STEM SEAL ASSEMBLY...
- Page 26 Instruction Manual CCV-N Valve October 2018 D104191X012 Figure 12. NPS 2 Unbalanced CCV-N Valve Assembly with Key Numbers for Applications Above 316_C (600_F) VIEW A VIEW A APPLY LUB/SEALANT...
- Page 27 Instruction Manual CCV-N Valve D104191X012 October 2018 Figure 13. NPS 3 Unbalanced CCV-N Valve Assembly with Key Numbers for Applications Above 316_C (600_F) VIEW A VIEW A APPLY LUB/SEALANT...
- Page 28 Instruction Manual CCV-N Valve October 2018 D104191X012 Figure 14. NPS 4 Balanced Bore-Seal Design CCV-N Valve Assembly with Key Numbers for Applications Above 316_C (600_F) VIEW B VIEW A VIEW A VIEW B APPLY LUB/SEALANT...
- Page 29 Instruction Manual CCV-N Valve D104191X012 October 2018 Figure 15. NPS 4 Balanced Bore-Seal CCV-N Trim Maintenance — Pull the Valve Plug and Stem Assembly to the Top of the Seat Ring Retainer VALVE STEM PLUG STAKED THREAD BETWEEN PLUG AND PLUG RETAINER PLUG RETAINER BORE-SEAL SEAT RING RETAINER...
- Page 30 Instruction Manual CCV-N Valve October 2018 D104191X012...
- Page 31 Instruction Manual CCV-N Valve D104191X012 October 2018...
- Page 32 Responsibility for proper selection, use, and maintenance of any product remains solely with the purchaser and end user. Fisher is a mark 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.