Emerson Fisher 92C Instruction Manual Download Page 4

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Figure 3.

Typical Pilot-Operated Type 92C Regulator Installations (continued)

E0656

E0657

SIDE VIEW

TYPE 6492HM SAFETY

OVERRIDE PILOT

TYPE 6392 PILOT

TYPE 92C MAIN VALVE

TOP VIEW

TYPE 92C MAIN VALVE

TYPE 6392 PILOT

TYPE 6492HM SAFETY

OVERRIDE PILOT

TYPE 92C MAIN VALVE

TYPE 6392 PILOT

BLOCK VALVE

GAUGE

TYPE 6392 PILOT

BLOCK VALVE

GAUGE

TYPE 92C MAIN VALVE

TYPE 6492HM SAFETY

OVERRIDE PILOT

BLOCK VALVE

TYPICAL TYPE 92C WITH TYPE 6492HM OR 6492HTM SAFETY OVERRIDE PILOT INSTALLATION

Type 92C

Summary of Contents for Fisher 92C

Page 1: ...pilot operated version uses inlet pressure as the operating medium no separate air supply is required The pressure loaded version is used where remote adjustment of the regulator pressure setting is required a 67 or 1301 Series regulator or 670 Series panel mounted regulator may be used as the loading regulator A Type 6492HM or 6492HTM safety override pilot is also available for the Type 92C The T...

Page 2: ...he maximum allowable diaphragm differential pressure of 150 psi 10 3 bar for gray cast iron steel and stainless steel constructions must not be exceeded 1 Pressure temperature limits in this Instruction Manual and any applicable code limitations must not be exceeded Orifice Sizes NPS 1 2 DN 15 Main Valve 9 16 in 14 mm NPS 3 4 and 1 DN 20 and 25 Main Valves 3 4 in 19 mm is standard 9 16 in 14 mm is...

Page 3: ... PART NUMBER AND COLOR SPRING WIRE DIAMETER SPRING FREE LENGTH psig bar In mm In mm Standard use up to 500 F 260 C 5 to 70 0 34 to 4 8 1E392627012 Green 0 170 4 32 2 00 50 8 20 to 150 1 4 to 10 3 1E392727142 Red 0 207 5 26 1 94 49 0 High pressure and or High temperature over 500 F 250 C 15 to 100 1 0 to 6 9 14B9941X012 Unpainted 0 192 4 88 1 96 49 8 80 to 200 5 5 to 17 2 14B9940X012 Unpainted 0 28...

Page 4: ...TYPE 92C MAIN VALVE TOP VIEW TYPE 92C MAIN VALVE TYPE 6392 PILOT TYPE 6492HM SAFETY OVERRIDE PILOT TYPE 92C MAIN VALVE TYPE 6392 PILOT BLOCK VALVE GAUGE GAUGE TYPE 6392 PILOT TYPE 6392 PILOT BLOCK VALVE GAUGE TYPE 92C MAIN VALVE TYPE 92C MAIN VALVE TYPE 6492HM SAFETY OVERRIDE PILOT BLOCK VALVE TYPICAL TYPE 92C WITH TYPE 6492HM OR 6492HTM SAFETY OVERRIDE PILOT INSTALLATION 4 Type 92C ...

Page 5: ... it registers under the diaphragm and forces the stem and plug to move upward The upward force of the spring causes the valve to close which decreases flow to the downstream system thus decreasing downstream pressure In hot air service supply air above the diaphragm becomes compressed and is vented to the atmosphere If a steam supply is used the steam is vented downstream Safety Override Pilot Pri...

Page 6: ...in a tall vertical pipeline where condensate could collect and create a pressure head affecting regulator performance Apply steam compatible pipe compound to the external pipeline threads Then using acceptable piping procedures install the regulator into the pipeline If continuous operation of the system is required during inspection and maintenance install a three valve bypass around the regulato...

Page 7: ... TYPE 92C MAIN VALVE Type 92C Safety Override System July 2008 Typ INLET PRESSURE OUTLET PRESSURE ATMOSPHERIC PRESSURE INTERMEDIATE PRESSURE LOADING PRESSURE 36A1546 B A2520 1 INLET PRESSURE OUTLET PRESSURE ATMOSPHERIC PRESSURE LOADING PRESSURE Figure 5 Operational Schematic of Pilot Operated Type 92C Regulator Type 92C Safety Override System July 2008 Typ INLET PRESSURE OUTLET PRESSURE ATMOSPHERI...

Page 8: ...ading supply is air or a downstream bleed line is required if the loading supply is steam This installation is shown in Figure 4 The pressure setting of a pressure loaded regulator is adjusted and determined by the pressure loading device In all cases check the pressure setting to make sure it is correct for the application Startup The maximum inlet pressure for a specific construction is stamped ...

Page 9: ...s are subject to normal wear and must be inspected periodically and replaced as necessary The frequency of inspection and replacement depends upon the severity of service conditions and upon applicable Federal state and local codes and regulations WARNING Avoid personal injury or property damage from sudden release of pressure or uncontrolled steam or other process fluid Before starting disassembl...

Page 10: ...rew the orifice key 3 and inspect the seating surface for nicks and scratches Replace if necessary 4 Clean the valve plug guide the valve plug the valve plug spring and the orifice keys 5 4 7 and 3 respectively 5 Coat the orifice threads with Never Seez or equivalent lubricant Then being careful not to damage the seating surface thread the orifice key 3 into the regulator body key 1 6 Place the va...

Page 11: ... Unscrew the orifice key 5 Examine the orifice and plug seating surfaces for damage 2 Clean and replace parts as necessary Apply sealant to the orifice threads Thread the orifice into place and tighten using 19 to 25 ft lbs 26 to 34 N m of torque 3 Handle parts carefully and place the plug spring key 3 in the plug guide key 2 Slide the inner valve key 4 over the spring and into the plug guide Plac...

Page 12: ...ragm Gasket 2 required for Gray Cast Iron body 3 required for Steel Stainless Steel body with Ethylenepropylene EPDM seat 16A1526X012 Steel Stainless Steel body with metal seat 3 required 1E3993X0012 Steel Stainless Steel body with metal seat High temperature 3 required 16A1526X022 10 Pitot Tube For Gray Cast Iron body Copper NPT 16A1525X012 For Steel body Copper NPT 1E399417012 CL150 RF 16A1525X0...

Page 13: ...art Number 13 Control Spring Standard springs 416 Stainless Steel 5 to 70 psig 0 34 to 4 8 bar Green 1E392627012 20 to 150 psig 1 4 to 10 3 bar Red 1E392727142 Spring for use over 500 F 260 C 17 7 PH Stainless Steel 15 to 100 psig 1 0 to 6 9 bar 14B9941X012 20 to 25 psig 1 4 to 1 7 bar 14B9940X012 14 Upper Spring Seat Zinc plated steel 1B798525062 15 Jam Nut Plate steel 1A352224122 16 Adjusting Sc...

Page 14: ...S ANTI SEIZE COMPOUND 16 14 13 17 10 12 2 15 18 19 26 11 9 8 4 5 7 1 6 3 L L S 9 15 14 13 9 12 10 8 1 4 7 5 2 9 6 3 S S 11 2 9 8 STEEL STAINLESS STEEL CONSTRUCTION GREY CAST IRON CONSTRUCTION 26A1536 A Figure 8 Type 92C Steam Regulator Assembly APPLY SEALANT S ANTI SEIZE COMPOUND 14 Type 92C ...

Page 15: ... E0660 15 13 12 11 10 18 77 5 3 2 4 7 16 95 78 14 20 19 17 94 74 1 8 9 36A1545 A A2521 1 Figure 10 Type 6392 Pilot Mounting Parts 25 23 22 24 1 4 NPT PILOT SUPPLY CONNECTION 1 4 NPT REGULATOR SUPPLY CONNECTION 1 4 NPT DOWNSTREAM CONTROL LINE CONNECTION 15 Type 92C ...

Page 16: ...re their accuracy they are not to be construed as warranties or guarantees express or implied regarding the products or services described herein or their use or applicability All sales are governed by our terms and conditions 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 Manageme...

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