Emerson Fisher 92S Instruction Manual Download Page 4

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A6553

A6552

Type 92S Self-Powered Control Valve

August 2007

Type 92S

PILOT SPRING

PILOT VALVE PLUG

PILOT INLET

SCREEN

MAIN VALVE

PISTONS

MAIN VALVE

SPRING

MAIN VALVE

PLUG

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

PLUG

MAIN VALVE

STEM

PILOT INLET

SCREEN

MAIN VALVE

PISTON

PILOT VALVE

PLUG SPRING

LOADING PRESSURE

ATMOSPHERIC PRESSURE

OUTLET PRESSURE

NPS 2-1/2, 3, 4 OR 6 X 4 / DN 65, 80, 100 OR 150 X 100 BODY SIZE MAIN VALVE BODY AND TYPE 6492L PILOT

Figure 2.

Type 92S Pilot-Operated Steam Regulator Operational Schematics

INLET PRESSURE

Type 92S

Summary of Contents for Fisher 92S

Page 1: ...n improper adjustment and unsafe operation Either condition may result in equipment damage or personal injury Use qualified 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 Regul...

Page 2: ...50 x 100 2 Body Size 1 4 NPT in pilot body Pilot Spring Case Vent Standard 1 8 in 3 2 mm drilled hole Optional 1 4 NPT tapping for pressure loading or on off service Approximate Weights BODY SIZE END CONNECTION STYLES AND RATINGS Cast Iron Body Steel or Stainless Steel Body 1 1 1 2 and 2 NPT NPT NPS 1 1 1 2 2 2 1 2 3 and 4 DN 25 40 50 65 80 and 100 CL125 FF or CL250 RF CL150 RF CL300 RF CL600 RF o...

Page 3: ...80 to 250 5 5 to 17 2 14B9942X022 Table 4 Safety Pilot Outlet Control Pressure Ranges Description The Type 92S pressure reducing regulator for steam service includes either a Type 6492H 6492HT or 6492L pilot Figure 1 Both pilots have a friction reducing bellows seal on the stem and offer pressure setting adjustment plus sensitivity to downstream pressure changes These pilots are available in eithe...

Page 4: ... 50 BODY SIZE MAIN VALVE BODY AND TYPE 6492H OR 6492HT PILOT MAIN VALVE PLUG MAIN VALVE STEM PILOT INLET SCREEN MAIN VALVE PISTON PILOT VALVE PLUG SPRING LOADING PRESSURE ATMOSPHERIC PRESSURE OUTLET PRESSURE NPS 2 1 2 3 4 OR 6 X 4 DN 65 80 100 OR 150 X 100 BODY SIZE MAIN VALVE BODY AND TYPE 6492L PILOT Figure 2 Type 92S Pilot Operated Steam Regulator Operational Schematics INLET PRESSURE 4 Type 92...

Page 5: ...TY OVERRIDE PILOT TYPE 92S MAIN VALVE TYPE 92S MAIN VALVE TYPE 6492H PILOT TYPE 6492HM SAFETY OVERRIDE PILOT TYPE 6492H PILOT INLET PRESSURE OUTLET PRESSURE ATMOSPHERIC PRESSURE LOADING PRESSURE INTERMEDIATE PRESSURE NPS 2 1 2 3 AND 4 DN 65 80 AND 100 BODY SIZES TYPE 92S PILOT OPERATED PRESSURE REDUCING VALVE WITH SAFETY OVERRIDE PILOT Figure 2 Type 92S Pilot Operated Steam Regulator Operational S...

Page 6: ...ening the main valve The Type 6492HM or 6492HTM safety override pilot remains open because its setpoint is above the setpoint of the downstream valve In the unlikely event that the downstream valve fails open downstream pressure will rise above the downstream valve s setpoint This pressure is sensed by the Type 6492HM or 6492HTM safety override pilot As downstream pressure increases the safety ove...

Page 7: ...HAVE INTERNAL RELIEF STRAINER CONTROL LINE CONNECTION CONTROL LINE SHUTOFF VALVE BLOCK VALVE BYPASS LINE BLOCK VALVE VENT VALVE WITH STANDARD PILOT WITH PRESSURE LOADED PILOT 6492 SERIES PILOT 6492 SERIES PILOT TYPE 92S MAIN VALVE TYPE 6492H PILOT TYPE 92S MAIN VALVE TYPE 6492H PILOT TOP VIEW TYPE 6492H PILOT TYPE 92S MAIN VALVE TYPE 6492H PILOT TYPE 92S MAIN VALVE TYPE 6492HM SAFETY OVERRIDE PILO...

Page 8: ...2S MAIN VALVE TYPE 6492H PILOT TYPE 6492H PILOT SIDE VIEW BOTTOM VIEW Figure 3 Typical Installations continued BLOCK VALVE GAUGE TYPE 92S MAIN VALVE TYPE 6492HM SAFETY OVERRIDE PILOT TYPE 6492H PILOT TYPE 6492H PILOT GAUGE BLOCK VALVE GAUGE BLOCK VALVE NPS 1 1 1 2 AND 2 DN 25 40 AND 50 BODY SIZES SAFETY OVERRIDE PIPING SCHEMATICS 8 Type 92S ...

Page 9: ...the regulator Note A clogged vent on the spring case of a standard Type 6492H or 6492L pilot may cause the regulator to function improperly Install and maintain a regulator with a standard pilot so that the spring case vent stays clear 5 As shown in Figure 3 connect a control line as large as possible but no smaller than 3 8 in 9 5 mm diameter bushed down to the 1 4 NPT connection in the cylinder ...

Page 10: ...and Type 6492H or 6492HT intermediate pilot on the upstream valve until there is no spring load The screws should turn freely by hand 2 Loosen the adjusting screw of the Type 6492H or 6492HT pilot on the downstream valve until there is no spring load 3 Tighten the Type 6492HM or 6492HTM safety override pilot of the upstream valve all the way in to its highest spring setting 4 Tighten the Type 6492...

Page 11: ...ring key 12 Remove the pilot from the pipe nipple and connectors keys 82 and 83 Figure 6 1 Unscrew the valve guide key 2 Remove the screen key 77 inner valve key 4 valve spring key 3 and stem key 7 Unscrew the seat ring key 5 Examine the seat ring and plug seating surfaces for damage 2 Clean and replace parts as necessary Apply sealant to the seat ring threads Thread the seat ring into place and t...

Page 12: ...ner key 26 and top piston ring key 25 from the top piston key 24 4 For NPS 1 1 1 2 and 2 DN 25 40 and 50 body sizes lift off the cylinder spacer key 21 and remove the stem seal retainer key 23 and stem seal key 22 from the spacer 5 Remove the cylinder key 17 piston key 24 with attached parts and spiral wound gasket key 8 6 Remove the cotter pin key 16 NPS 1 1 1 2 and 2 DN 25 40 and 50 body sizes o...

Page 13: ... pilot and connect all tubing as shown in Figure 6 12 When all maintenance is complete refer to the Start up section to put the regulator back into operation and adjust the pressure setting Parts Ordering The type number orifice size spring range and date of manufacture are stamped on the nameplate Always provide this information in any correspondence with your local Sales Office regarding replace...

Page 14: ...Stainless steel body Stainless steel 1C3790X0012 87 Sealing Washer Carbon steel tapped spring case only 1V205699012 Types 6492HM and 6492HTM Safety Override Pilots Figure 4 Key Description Part Number 1 Pilot Valve Body Steel 22A0403X052 Stainless steel 22A0403X072 2 Valve Guide Steel 1E391835132 Stainless steel 1E391835072 3 Valve Spring Stainless steel 1E392437022 4 Inner Valve Steel 1F967446172...

Page 15: ... 1 1 2 DN 40 body 26A7900X012 NPS 2 DN 50 body 26A7869X012 NPS 2 1 2 DN 65 body 27A1548X012 NPS 3 DN 80 body 27A1576X012 NPS 4 or 6 x 4 DN 100 or 150 x 100 body 27A1600X012 WCC steel NPS 1 DN 25 body 26A7838X012 NPS 1 1 2 DN 40 body 26A7901X012 NPS 2 DN 50 body 26A7870X012 NPS 2 1 2 DN 65 body 27A1549X012 NPS 3 DN 80 body 27A1577X012 NPS 4 or 6 x 4 DN 100 or 150 x 100 body 27A1601X012 CF8M Stainle...

Page 16: ...012 NPS 4 or 6 x 4 DN 100 or 150 x 100 body 17A1611X012 13 Baffle Stainless steel NPS 1 DN 25 body 19A1378X012 NPS 1 1 2 DN 40 body 16A7912X012 NPS 2 DN 50 body 16A7881X012 NPS 2 1 2 DN 65 body 17A1560X012 NPS 3 DN 80 body 17A1587X012 NPS 4 or 6 x 4 DN 100 or 150 x 100 body 17A1612X012 14 Retaining Ring For Cast iron and Steel bodies Steel NPS 1 DN 25 body 16A7851X012 NPS 1 1 2 DN 40 body 16A7913X...

Page 17: ...body 2 required 16A7922X012 NPS 2 DN 50 body 2 required 16A7891X012 NPS 2 1 2 DN 65 body 1 required 17A1566X012 NPS 3 DN 80 body 1 required 17A1592X012 NPS 4 or 6 x 4 DN 100 or 150 x 100 body 1 required 17A1617X012 29 Flow Arrow Stainless steel NPS 1 DN 25 body 1V105938982 NPS 1 1 2 2 2 1 2 3 4 or 6 x 4 DN 40 50 65 80 100 or 150 x 100 body 1V106038982 Type 92S Main Valve Figure 5 continued Key Des...

Page 18: ...2 37A1544X012 37A1571X012 37A1572X012 GE10707X012 GE10822X012 WCC Steel NPT CL150 RF CL300 RF CL600 RF GE11581X012 GE11583X012 GE11607X012 GE11608X012 26A7896X012 26A7897X012 26A7898X012 26A7899X012 GE10588X012 GE10676X012 GE10678X012 GE10679X012 37A1545X012 37A1546X012 37A1547X012 37A1573X012 37A1574X012 37A1575X012 GE10835X012 GE10839X012 GE10842X012 37A9679X012 37A9680X022 CF8M SST NPT CL150 RF...

Page 19: ... 19 20 14 16 77 5 1 18 10 24 15 95 1 78 16 14 20 19 17 94 74 13 12 9 8 7 4 2 15 11 10 18 5 77 3 39A3515 B 39B3357_A TYPE 6492HM PILOT APPLY LUBRICANT SEALANT ADHESIVE Figure 4 Pilot Assemblies continued TYPE 6492L PILOT 19 Type 92S ...

Page 20: ...2 25 24 17 5 32 7 35 9 38 1 6 8 33 34 12 13 11 28 15 3 4 30 19 36A7960 D 37A6565 B 37A1622 D DETAIL OF NOISE ATTENUATION NPS 1 1 1 2 OR 2 DN 25 40 OR 50 BODY SIZE 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 20 Type 92S ...

Page 21: ...LOT MOUNTED IN STANDARD POSITION SO CONTROL LINE CONNECTION FACES DOWNSTREAM SUPPLY CONTROL LOADING 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 Figure 6 Pilot Mounting Parts 21 Type 92S ...

Page 22: ...3 90 81 92 NPS 1 1 1 2 OR 2 DN 25 40 OR 50 BODY SIZE TYPE 6492HM TYPE 6492H CONTROL LINE CONNECTION NPS 1 1 1 2 AND 2 DN 25 40 AND 50 BODY SIZES WITH TYPE 6492HM PILOT MOUNTING PARTS Figure 6 Pilot Mounting Parts continued CONTROL LINE CONNECTION 22 Type 92S ...

Page 23: ...89 93 90 84 49B1170_A CONTROL LINE CONNECTION TYPE 6492HM CONTROL LINE CONNECTION 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 23 Type 92S ...

Page 24: ...itions which are available upon request We reserve the right to modify or improve the designs or specifications of such products at any time without notice Emerson Process Management Regulator Technologies Inc does not assume responsibility for the selection use or maintenance of any product Responsibility for proper selection use and maintenance of any Emerson Process Management Regulator Technol...

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