Fisher 92S Instruction Manual

Fisher 92S Instruction Manual

Pilot-operated steam regulators

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Instruction Manual
Form 5234
October 2013
Type 92S Pilot-Operated Steam Regulators
WARNiNg
!
Failure to follow these instructions or
to properly install and maintain this
equipment could result in an explosion,
fi re and/or chemical contamination
causing property damage and personal
injury or death.
Fisher
regulators must be installed,
®
operated, and maintained in accordance
with federal, state, and local codes, rules
and regulations, and Emerson Process
management Regulator Technologies, inc.
(Regulator Technologies) instructions.
if the regulator vents gas or a leak
develops in the system, service to the unit
may be required. Failure to correct trouble
could result in a hazardous condition.
Installation, operation, and maintenance
procedures performed by unqualifi ed
personnel may result in improper
adjustment and unsafe operation. Either
condition may result in equipment
damage or personal injury. use qualifi ed
personnel when installing, operating, and
maintaining the Type 92S Pilot-Operated
Steam regulator.
introduction
Scope of the manual
This manual provides instruction for installation,
adjustment, maintenance, and parts ordering
information for the Type 92S Pilot-Operated Steam
Regulator complete with Type 6492L, 6492H, or
6492HT pilot. The Type 92S is also available with
a Type 6492HM or 6492HTM safety override pilot.
Accessories used with this valve, including any
pressure-loading device for a Type 6492L, 6492H,
6492HT, 6492HM, or 6492HTM pilot with tapped
spring case, are covered in other manuals.
W4086-3
W4088-1
NPS 3 / DN 80 FLANGeD CAST IRON MAIN VALVe
Figure 1. Type 92S Pilot-Operated Steam Regulator
www.fisherregulators.com
Type 92S
1 NPT STEEL mAiN VALVE WiTH
TYPE 6492H OR 6492HT PiLOT
WiTH TYPE 6492L PiLOT

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Summary of Contents for Fisher 92S

  • Page 1 Type 92S Pilot-Operated Steam W4088-1 Regulator complete with Type 6492L, 6492H, or 6492HT pilot. The Type 92S is also available with a Type 6492HM or 6492HTM safety override pilot. NPS 3 / DN 80 FLANGeD CAST IRON MAIN VALVe...
  • Page 2 Type 92S Specifications The Specifications section lists the specifications for the Type 92S regulator. Specifications for a given regulator as it originally comes from the factory are stamped on nameplates located on both the main valve body and pilot, while the pilot control spring range is displayed on the pilot spring case.
  • Page 3 A Type 6492HM or 6492HTM safety override leakage will condense before steam pilot is available for the Type 92S. The Type 6492H pressure builds up. Downstream piping or 6492HT pilot is used in a series installation with...
  • Page 4 September 2006 A6552 Type 92S 2-1/2 thru 6 x 4-Inch (DN 65 thru 150 x 100) NPS 1, 1-1/2, OR 2 / DN 25, 40, OR 50 BODy SIze MAIN VALVe BODy AND TyPe 6492H OR 6492HT PILOT mAiN VALVE...
  • Page 5 TYPE 6492Hm SAFETY OVeRRIDe PILOT E0402 NPS 1, 1-1/2, AND 2 / DN 25, 40, AND 50 BODy SIzeS TyPe 92S PILOT-OPeRATeD PReSSuRe ReDuCING ReGuLATOR WITH SAFeTy OVeRRIDe PILOT TYPE 92S mAiN VALVE TYPE 92S mAiN VALVE TYPE 6492H PiLOT...
  • Page 6 Type 92S Principle of Operation pressure is sensed by the Type 6492HM or 6492HTM safety override pilot. As downstream pressure increases the safety override pilot closes, reducing Pilot supply pressure is piped from the main valve inlet loading pressure to the main valve, which positions (Figure 2) to the pilot inlet connection.
  • Page 7 A2607-1 ByPASS WITH STANDARD PILOT LiNE 16A7958-B 16A1547-A A3334 WITH PReSSuRe-LOADeD PILOT TYPE 92S mAiN VALVE TYPE 92S mAiN VALVE TYPE 6492H PiLOT TYPE 6492H PiLOT TOP ViEW TYPE 6492H PiLOT TYPE 6492H PiLOT TYPE 92S mAiN VALVE TYPE 92S mAiN VALVE...
  • Page 8 Type 92S BLOCK VALVe TYPE 92S mAiN VALVE gAUgE gAUgE gAUgE BLOCK VALVe BLOCK VALVe TYPE 6492H PiLOT TYPE 6492Hm SAFETY E0662 TYPE 6492H PiLOT OVeRRIDe PILOT NPS 1, 1-1/2, AND 2 / DN 25, 40, AND 50 BODy SIzeS SAFeTy OVeRRIDe PIPING SCHeMATICS...
  • Page 9 NPS 2-1/2, 3, 4, or 6 x 4 / DN 65, 80, 100, or 150 x 100 body size. 2. A Type 92S regulator may be installed in any orientation, as long as flow through the regulator 6. Locate the control line connection at least...
  • Page 10 Type 92S • The pressure-loading device in conjunction with 3. Tighten the Type 6492HM or 6492HTM safety the control spring adjustment on a pressure- override pilot of the upstream valve all the way in to loaded pilot. In both cases, check these its highest spring setting.
  • Page 11 Type 92S Startup with Existing Regulator Note installation After Normal Shutdown Before performing any maintenance, loosen the hex nut (key 16), if used, 1. Open the upstream and downstream block valves and turn the adjusting screw (key 15) or and let the regulator take over control at the handwheel (key 38) counterclockwise existing pilot control spring setting.
  • Page 12 (key 33, NPS 2 / DN 50 body size only), deflector (key 36, NPS 2 / DN 50 body size only), Type 92S main Valve and screen (key 37). 8. Either remove the retaining ring (key 14), or...
  • Page 13 Type 92S Parts Ordering For NPS 2-1/2, 3, and 4 / DN 65, 80, and 100 body sizes, install the plug spacer (key 33), baffle (key 13), O-ring, washer, spring seat, and The type number, orifice size, spring range, and date of piston spacer (keys 38, 34, 32, and 11).
  • Page 14 Type 92S 39A3514-B 32A4712-A DeTAIL OF TAPPeD SPRING CASe WITH SeALeD ADJuSTING SCReW TYPE 6492H OR 6492HT PiLOT TYPE 6492L PiLOT 39A3515-B APPLy LuBRICANT/SeALANT/ADHeSIVe Figure 4. Pilot Assemblies...
  • Page 15 Type 92S TYPE 6492Hm PiLOT 39B3357_A APPLy LuBRICANT/SeALANT/ADHeSIVe Figure 4. Pilot Assemblies (continued) Types 6492L, 6492H, and 6492HT Pilots (Figure 4) (continued) Description Part Number Description Part Number Hex Nut (standard spring case only), Control Spring, Plated steel Zinc-plated steel...
  • Page 16 Type 92S Types 6492Hm and 6492HTm Safety Override Pilots (Figure 4) Description Part Number Description Part Number Pilot Valve Body Handwheel 1J496144012 Steel 22A0403X052 Lock Washer for use with Handwheel, Alloy steel 1A352332992 Stainless steel 22A0403X072 Pipe Plug Valve Guide...
  • Page 17 NPS 1, 1-1/2, OR 2 / DN 25, 40, OR 50 BODy SIze 37A1622-D APPLy LuBRICANT/SeALANT/ADHeSIVe NPS 2-1/2, 3, 4, OR 6 x 4 / DN 65, 80, 100, OR 150 x 100 BODy SIze Figure 5. Type 92S Main Valve Assemblies...
  • Page 18 CL600 RF GE11608X022 26A7899X022 GE10679X022 37A1547X022 37A1575X022 GE10842X022 37A9680X022 Type 92S Main Valve (Figure 5) Description Part Number Description Part Number Repair Kits (included are keys 8, 16, Stud Bolt, Steel (continued) 18, 19, 25, and 38) For Stainless steel body...
  • Page 19 Type 92S SUPPLY CONTROL LOADING 39A3519-C WITH PILOT MOuNTeD IN STANDARD POSITION SO CONTROL LINe CONNeCTION FACeS DOWNSTReAM SUPPLY CONTROL LOADING 30B3840_A WITH PILOT MOuNTeD IN OPTIONAL POSITION SO CONTROL LINe CONNeCTION FACeS uPSTReAM NPS 2-1/2, 3, 4, OR 6 x 4 / DN 65, 80, 100, OR 150 x 100 BODy SIze...
  • Page 20 Type 92S 29A3518-B NPS 1, 1-1/2, OR 2 / DN 25, 40, OR 50 BODy SIze TYPE 6492H CONTROL LINe CONNeCTION TYPE 6492Hm WARN CONTROL LINe CONNeCTION 49B1169_A NPS 1, 1-1/2, AND 2 / DN 25, 40, AND 50 BODy SIzeS WITH TyPe 6492HM PILOT MOuNTING PARTS...
  • Page 21 CONNeCTION 49B1170_A NPS 2-1/2, 3, AND 4 / DN 65, 80, AND 100 BODy SIzeS WITH TyPe 6492HM PILOT MOuNTING PARTS Figure 6. Pilot Mounting Parts (continued) Type 92S Main Valve (Figure 5) (continued) Description Part Number Description Part Number...
  • Page 22 Type 92S Type 92S Main Valve (Figure 5) (continued) Description Part Number Description Part Number Baffle, Stainless steel Cylinder Gasket, NPS 1 / DN 25 body 19A1378X012 For Cast iron and Steel bodies, Copper NPS 1 / DN 25 body (3 required)
  • Page 23 Type 92S Type 92S Main Valve (Figure 5) (continued) Description Part Number Description Part Number Piston, Stainless steel Plug Spacer, Stainless steel For Cast iron and Steel bodies, NPS 2 size (Noise Attenuation only) 17A6563X012 NPS 1 / DN 25 body (2 required)
  • Page 24 For further information visit www.fisherregulators.com The Emerson logo is a trademark and service mark of Emerson Electric Co. All other marks are the property of their prospective owners. Fisher is a mark owned by Fisher Controls International LLC, a business of Emerson Process Management.

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