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HP and HPA Control Valves - 48 Pages

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Catalogue excerpts

Introduction1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Scope of Manual1. . . . . . . . . . . . . . . . . . . . . . . . . . Description2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Specifications2. . . . . . . . . . . . . . . . . . . . . . . . . . . . Installation3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Maintenance5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Packing Lubrication6. . . . . . . . . . . . . . . . . . . . . . . Packing Maintenance7. . . . . . . . . . . . . . . . . . . . . . Adding Packing Rings7. . . . . . . . . . . . . . . . . . . . Replacing Packing8. . . . . . . . . . . . . . . . . . . . . . . Trim Removal12. . . . . . . . . . . . . . . . . . . . . . . . . . . Valve Plug Maintenance13. . . . . . . . . . . . . . . . . . Lapping Seats14. . . . . . . . . . . . . . . . . . . . . . . . . . . Trim Replacement16. . . . . . . . . . . . . . . . . . . . . . . Retrofit: Installing C-seal Trim18. . . . . . . . . . . . Replacement of Installed C-seal Trim21. . . . . . . Trim Removal(C-seal Constructions)21. . . . . . . . . . . . . . . . Lapping Metal Seats(C-seal Constructions)21. . . . . . . . . . . . . . . . Remachining Metal Seats(C-seal Constructions)22. . . . . . . . . . . . . . . . Trim Replacement(C-seal Constructions)22. . . . . . . . . . . . . . . . Parts Ordering23. . . . . . . . . . . . . . . . . . . . . . . . . . . . Parts Kits24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Parts List24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . > W6848-1 Figure 1. HP Valve with 667 Actuator and FIELDVUE DVC6000 Digital Valve Controller Do not install, operate, or maintain HP Series valveswithout first being fully trained and qualified invalve, actuator, and accessory installation,operation, and maintenance, and > This instruction manual includes installation,maintenance, and parts information for NPS 1through 6 HP valves with CL900 and CL1500ratings; and NPS 1 through 2 HP and HPA valves with CL900, CL1500, and CL2500 ratings. Refer toseparate manuals for instructions covering theactuator, positioner, and accessories. carefully readingand understanding the contents of this manual. Ifyou have any questions about these instructions,contact your Emerson Process Management salesoffice before proceeding.Unless otherwise noted, all NACE references are toNACE MR0175-2002 and MR0103. > www.Fisher.com size="-2">

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June 2008 Standard Cage with Micro-Flat Valve Plug:(HPAS only): > Table 1. Specifications Linear End Connection Styles and Ratings > (1,2,3,4) Cavitrol III or Whisper Trim III Cage: Linear Flanged: Consistent with CL900, CL1500, andCL2500 per ASME B16.34 Special cages: Special characterized flow cagesare available. Consult your local Emerson Process Management sales office. Socket Welding: Consistent with CL900,CL1500, and CL2500 per ASME B16.34 Flow DirectionStandard Cage Buttwelding: Consistent with CL900, CL1500,and CL2500 per ASME B16.34Also see table 2 HPD and HPAD: Normally flow down HPS...

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VALVEDESIGN PORT DIAMETER,mm (INCHES) LEAKAGECLASS 47.6 (1.875) and smaller II II - Standard 58.7 (2.3125) to 92.1 (3.625) HPD, HPAD III - Optional III - Standard 111.1 (4.375) and larger IV - Optional HPS, HPAS w/ Cavitrol III, or HPT, HPAT w/ Cavitrol III, or HPAS w/Micro-Flat All V HPS, HPAS, HPT, HPAT, HPS, HPAS w/ Micro-Form, or HPS, HPAS w/ Micro-Flute IV-Standard All V-Optional HPT w/ PEEK anti-extrusion rings 47.6 (1.875) to 136.5 (5.375) V to 316 C (600 F) > VALVE DESIGN VALVE SIZE, NPS PORT DIAMETER,mm (INCHES) CAGE STYLE LEAKAGE CLASS Equal Percentage, Modified Equal Percentage,Linear...

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UPPER WIPER (KEY 27)PACKING FOLLOWER(KEY 28)FEMALE ADAPTOR(KEY 35)V-RING (KEY 23)MALE ADAPTOR(KEY 34)WASHER (KEY 25)SPRING (KEY 24)PACKING BOX RING(KEY 26)LOWER WIPER(KEY 33) PACKING FOLLOWER(KEY 28) PACKING BOX RING(KEY 26)LANTERN RING(KEY 24)GRAPHITE FILAMENTPACKING RING (KEY 23)GRAPHITE RIBBONPACKING RING (KEY 23) KEY 22 UPPER WIPER (KEY 27)PACKING FOLLOWER(KEY 28)FEMALE ADAPTOR(KEY 35)V-RING (KEY 23)MALE ADAPTOR(KEY 34)LANTERN RING (KEY 24)PACKING BOX RING(KEY 26)LOWER WIPER(KEY 33) 12 > 12A8160-A14A3412-C KEY 22 1 2 1 PACKING FOLLOWER(KEY 28) PACKING BOX RING(KEY 26)LANTERN RING(KEY 24)GRAPHITE...

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When lifting the bonnet (key 18), besure that the valve plug and stemassembly (keys 5 and 6) remains onthe seat ring (key 4). This avoids damage to the seating surfaces as aresult of the assembly dropping fromthe bonnet after being lifted part way out. The parts are also easier to handleseparately.Use care to avoid damaging gasketsealing surfaces.The HPD and HPAD piston rings (key 8) are brittle and in two pieces. Avoid damaging the piston rings bydropping or rough handling. > Inspect the seat ring, cage, bonnet,and body gasket surfaces. Thesesurfaces must be in good condition, with all foreign...

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VALVE STEMPACKING FOLLOWERBONNETTOP OF PACKINGRING EVEN WITHBOTTOM OF ENTRANCE CHAMFER

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June 2008 15. Install new packing and the metal packing boxparts according to the appropriate arrangement infigure 3. If desired, packing parts may be pre-lubricated with a silicon base grease for easierinstallation. Slip a smooth-edged pipe over the valvestem, and gently tamp each soft packing part into the packing box, being sure that air is not trappedbetween adjacent soft parts.16. Slide the packing follower, wiper, and packingflange into position. Lubricate the packing flangestuds (key 20) and the faces of the packing flange nuts (key 21). Replace the packing flange nuts. > 1. Remove the...

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INNER PLUGOUTER PLUG CAGE SEAT RING PROTECTED SOFT SEAT A7039 / IL Figure 6. Detail of Protected Soft Seat 3. Using a strap wrench or similar tool, unscrew theouter plug from the inner plug. Do not damage theouter plug guide surfaces.4. Remove the protected soft seat seal. 5. Inspect the parts for damage and replace ifneeded.6. Refer to the Valve Plug Maintenance procedureor to the Lapping Seats procedure. > Never reuse an old stem with a new valve plug. Using an old stem with anew plug requires drilling a new pin hole in the stem. This weakens thestem and may cause the stem to fail inservice....

 Open the catalogue to page 13

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