Emerson Fisher CCV-N Instruction Manual Download Page 29

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Instruction Manual

D104191X012

CCV-N Valve

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

PLUG

VALVE STEM

PLUG

STAKED THREAD BETWEEN

PLUG AND PLUG RETAINER

PLUG RETAINER

BORE-SEAL

SEAT RING RETAINER

Summary of Contents for Fisher CCV-N

Page 1: ...el 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...

Page 2: ...from 10 to 100 travel Approximate Weights RATING VALVE SIZE NPS WEIGHT Kg lbs CL300 2 31 68 3 51 112 4 77 168 CL600 2 31 68 3 51 112 4 87 190 1 The pressure temperature limits in this manual and any applicable standard or code limitation for valve should not be exceeded Description CCV N valves are single port angle style and balanced or unbalanced valves with metal seat seat ring retainer guide a...

Page 3: ...e body interior is clean that pipelines are free of foreign material and that the valve is oriented so that pipeline flow is in the same direction as the arrow on the side of the valve 3 It is recommended the valve should be installed in the vertical orientation with the actuator vertical above the valve Other positions may result in uneven valve plug seal set seat ring seat ring retainer packing ...

Page 4: ...ng lines providing air pressure electric power or a control signal to the actuator Be sure the actuator cannot suddenly open or close the valve Use bypass valves or completely shut off the process to isolate the valve from process pressure Relieve process pressure from both sides of the valve Drain the process media from both sides of the valve Release the actuator loading pressure and relieve any...

Page 5: ...instruction manual 1 Isolate the control valve from the line pressure release pressure from both sides of the valve body and drain the process media from both sides of the valve If using a power actuator also shut off all pressure lines to the power actuator and releases all pressure from the actuator Use lock out procedures to be sure that the above measures stay in effect while you work on the e...

Page 6: ...ying tool around the bonnet until the bonnet loosens If no fluid leaks from the joint remove the nuts or cap screws completely and carefully lift the bonnet off the valve CAUTION Avoid damaging the seating surface caused by the valve plug and stem assembly dropping from the bonnet key 1 figure 3 after being lifted partway out When lifting the bonnet temporarily install a valve stem locknut on the ...

Page 7: ... the distance between the bonnet and body and keep it even to ensure that the bonnet is being torqued evenly Use no more than 1 4 of the specified torque as indicated in table 2 Repeat the crisscross pattern work up to the specified torque in 1 4 increments until the final torque is achieved Wait a minimum of 2 minutes to allow for gasket screw relaxation and recheck the torque retightening as nec...

Page 8: ...critical for making a good packing seal The inside surface of the seat ring retainer key 3 figure 6 7 8 12 and 13 is critical for smooth operation of the valve plug The seating surfaces of the valve plug key 2 figure 6 7 8 12 and 13 and seat ring key 9 figure 6 7 8 12 and 13 are critical for proper shutoff Unless inspection reveals otherwise assume all these parts are in good condition and protect...

Page 9: ... packing flange and spring pack assembly key 201 212 and 217 figure 5 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 packing box wall Clean the packing box and the metal packing parts 3 Inspect the valve stem threads and packing box surfaces for any sharp edges which might cut the packing Scratches or...

Page 10: ...ug key 2 stem key 7 and seal retainer key 4 Remove the seal retainer key 4 with a spanner wrench or strap wrench while counter holding the valve plug key 2 with a second strap wrench or other suitable tool to prevent rotation of the valve plug on the valve stem key 7 Slide the upper anti extrusion ring seal ring bi directional back up ring seal ring and anti extrusion ring key 63 24 and 33 off the...

Page 11: ...eplace the damaged parts 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...

Page 12: ...nce 8 Pull the valve plug and stem assembly all the way to the top end of the seat ring retainer key 3 and hold the valve plug and stem assembly so that the plug retainer key 4 and bore seal are above the top of the seat ring retainer as shown in Figure 15 Make sure the plug retainer is fully tightened onto the valve plug to ensure a metal to metal contact with the valve plug Stake the thread betw...

Page 13: ...ve body key 1 7 After the plug key 2 stem key 7 figure 3 and seat ring retainer key 4 assembly is placed into valve body key 1 ensure one of the seat ring retainer legs centerline aligns with the valve body inlet centerline and the previous orientation mark between valve body key 1 figures 6 7 8 12 13 and 14 and seat ring retainer key 3 figures 6 7 8 12 13 and 14 aligns with each other Once the se...

Page 14: ...r 2018 14 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 ...

Page 15: ...he valve and could cause personal injury and property damage Parts Kits Standard Packing Repair Retrofit Kits Table 4 Standard Packing Repair Retrofit Kits Stem Diameter mm Inches Yoke Boss Diameter mm Inches 12 7 1 2 71 2 13 16 Double PTFE Contains keys 12 6 8 11 and 218 RPACKX00662 Graphite Leak off Packing Contains keys 7 8 and 11 RPACKX00722 Graphite Leak off Packing Contains keys 4 5 7 8 11 a...

Page 16: ... 600 F 8 63 24 33 RSEALX00262 1 00 Unbalanced 600 F Not Applicable Not Applicable 1 60 Unbalanced 600 F Not Applicable Not Applicable NPS 3 2 25 Balanced 600 F 26 25 63 24 33 RSEALX00272 2 25 Unbalanced 600 F Not Applicable Not Applicable NPS 4 3 10 Balanced PTFE seal ring with anti extrusion ring 600 F 5 63 24 33 RSEALX00282 3 10 Balanced Bore Seal 600 F 17 18 RSEALX00292 ...

Page 17: ...uding 316 C 600 F NPS 2 Includes key 2 4 7 8 24 qty 2 63 qty 2 and 33 NPS 3 Includes key 2 7 8 24 qty 2 63 qty 2 33 25 and 26 NPS 4 Includes key 2 4 5 7 8 24 qty 2 63 qty 2 and 33 Valve Assembly figures 6 7 8 12 13 and 14 Key Description 1 Valve Body 2 Plug 3 Seat Ring Retainer 4 Plug Retainer 5 Groove Pin Nameplate 6 Flow Direction Arrow 7 Valve Stem 8 Groove pin 9 Seat Ring 10 Bonnet Gasket See ...

Page 18: ...ion Manual D104191X012 CCV N Valve October 2018 18 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 ...

Page 19: ... Manual D104191X012 CCV N Valve October 2018 19 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: ...ent with Key Numbers 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 KEY 14 PIPE PLUG IS NOT APPLICABLE FOR OPTIONAL NON TAPPED BONNET LOW PRESSURE SIDE HIGH PRESSURE SIDE ...

Page 21: ...ction Manual D104191X012 CCV N Valve October 2018 21 Figure 6 NPS 2 Balanced CCV N Valve Assembly with Key Numbers for Application Up to and Including 316_C 600_F VIEW A VIEW A VIEW B VIEW B APPLY LUB SEALANT ...

Page 22: ...tion Manual D104191X012 CCV N Valve October 2018 22 Figure 7 NPS 3 Balanced CCV N Valve Assembly with Key Numbers for Applications Up to and Including 316_C 600_F VIEW A VIEW A VIEW B VIEW B APPLY LUB SEALANT ...

Page 23: ...tion Manual D104191X012 CCV N Valve October 2018 23 Figure 8 NPS 4 Balanced CCV N Valve Assembly with Key Numbers for Applications Up to and Including 316_C 600_F VIEW A VIEW A VIEW B VIEW B APPLY LUB SEALANT ...

Page 24: ...ore Seal NPS 4 CCV N Maintenance for Application Up to and Including 316_C 600_F NEW PIN IN NEW PIN HOLE USED 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 SEAT RING RETAINER PLUG STEM SEAL ASSEMBLY ...

Page 25: ...ve October 2018 25 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 D104191X012 CCV N Valve October 2018 26 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 D104191X012 CCV N Valve October 2018 27 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: ...on Manual D104191X012 CCV N Valve October 2018 28 Figure 14 NPS 4 Balanced Bore Seal Design CCV N Valve Assembly with Key Numbers for Applications Above 316_C 600_F VIEW A VIEW B APPLY LUB SEALANT VIEW B VIEW A ...

Page 29: ...r 2018 29 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 PLUG VALVE STEM PLUG STAKED THREAD BETWEEN PLUG AND PLUG RETAINER PLUG RETAINER BORE SEAL SEAT RING RETAINER ...

Page 30: ...Instruction Manual D104191X012 CCV N Valve October 2018 30 ...

Page 31: ...Instruction Manual D104191X012 CCV N Valve October 2018 31 ...

Page 32: ...hich are available upon request We reserve the right to modify or improve the designs or specifications of such products at any time without notice 2016 2018 Fisher Controls International LLC All rights reserved 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 tradem...

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