Emerson Fisher 98HD Instruction Manual Download Page 10

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Types 98LD and 98HD

Key Description

Part number

19* Diaphragm Gasket (continued)

(Use with 302 SST diaphragm)

Type 98HD

NPS 1/4 body (2 required)

1E393104022

NPS 1/2 (DN 15) body (2 required)

1E397004022

NPS 3/4 and 1 (DN 20 and 25)

bodies (2 required)

1E399304622

O-Ring Retainer (elastomer seat only)

NPS 1/4 body

416 stainless steel

1L346035132

316 stainless steel (NACE)

1L346035072

NPS 1/2 (DN 15) body

416 stainless steel

1L341535232

316 stainless steel (NACE)

1L341535072

NPS 3/4 and 1 (DN 20 and 25) bodies

416 stainless steel

1L343035132

316 stainless steel (NACE)

1L343035072

22* O-Ring (elastomer seat only)

NPS 1/4 body

Nitrile (NBR)

1C853806992

Fluorocarbon (FKM)

1C8538X0052

NPS 1/2 (DN 15) body

Nitrile (NBR)

1D288806992

Fluorocarbon (FKM)

1N530106382

NPS 3/4 and 1 (DN 20 and 25) bodies

Nitrile (NBR)

1C782106992

Fluorocarbon (FKM)

1C7821X0072

Lockwasher, Steel

NPS 1/4 and 1/2 (DN 15) bodies

1C225628982

NPS 3/4 and 1 (DN 20 and 25) bodies

1H624328992

Machine Screw, Stainless steel

(Elastomer seat only)

NPS 1/4 body (NACE)

1L346238992

NPS 1/2 (DN 15) body (NACE)

1J4159X0012

NPS 3/4 and 1 (DN 20 and 25) bodies

1L343538992

NPS 3/4 and 1 (DN 20 and 25)

bodies (NACE)

1L3435X0012

Diaphragm Head

Type 98LD, Steel zinc-plated

NPS 1/4 body

1L345525072

NPS 1/2 (DN 15) body

1L339625072

NPS 3/4 and 1 (DN 20 and 25) bodies

1L342125072

Locknut, Steel zinc-plated

NPS 1/4 and 1/2 (DN 15) bodies

1L872324122

NPS 3/4 and 1 (DN 20 and 25) bodies

1L872224122

Packing Box, Steel

NPS 1/4 body

1L449624092

NPS 1/2, 3/4 and 1

(DN 15, 20 and 25) bodies

1L324024092

NPS 1-1/2 and 2 (DN 40 and 50)

bodies, Type 98H only

11A9809X022

Adjusting Screw, SST

NPS 1/4 body

1L449535232

NPS 1/2 (DN 15) body

1L449735232

NPS 3/4 and 1 (DN 20 and 25) bodies

1L324435232

NPS 1-1/2 and 2 (DN 40 and 50)

bodies, Type 98H only

21A9808X012

*Recommended spare part.

Key Description

Part number

Packing Follower

NPS 1/4 body, 316 SST

1K885035072

NPS 1/2, 3/4, and 1

(DN 15, 20, and 25) bodies

1K884924092

Packing Box Nut

Steel zinc-plated

0P077624102

36* Packing, PTFE (3 required)

NPS 1/4 body

1C752601012

NPS 1/2, 3/4, 1, 1-1/2, and 2 (DN 15, 20,

25, 40, and 50) bodies

1H784301012

37* Packing Box Gasket, Steel/composition

NPS 1/4 body

1B487099202

NPS 1/2, 3/4, 1 ,1-1/2, and 2 (DN 15, 20,

25, 40, and 50) bodies

1N499199202

Handwheel

NPS 1/4 body

1L217544992

NPS 1/2, 3/4, and 1

(DN 15, 20, and 25) bodies

1L369644992

NPS 1-1/2 and 2 (DN 40 and 50) bodies

1J410819042

39* Female Adaptor, PTFE

NPS 1/4 body

1F124401012

NPS 1/2, 3/4, 1, 1-1/2, and 2 (DN 15, 20,

25, 40, and 50) bodies

1H784401012

40* Male Adaptor, PTFE

NPS 1/4 body

1F124801012

NPS 1/2, 3/4, 1, 1-1/2, and 2 (DN 15, 20,

25, 40, and 50) bodies

1H784201012

Machine Screw, steel plate

NPS 1/4 body

1A340828992

NPS 1/2, 3/4 and 1

(DN 15, 20 and 25) bodies

16A5763X012

NPS 1-1/2 and 2-inch (DN 40 and 50) bodies

1A680324122

Spring, 316 stainless steel

1F125437012

Washer, 316 stainless steel

NPS 1/4 body

1F125236042

NPS 1/2, 3/4, and 1 (DN 15, 20, and 25)

bodies

1H981836042

Washer, Steel

NPS 1/4 body

1A329128982

NPS 1/2, 3/4, and 1 (DN 15, 20, and 25)

bodies

1A352332992

NPS 1-1/2 and 2 (DN 40 and 50)

bodies, Type 98H only

1E794128992

45* O-Ring, Nitrile (NBR)

(Use with elastomer diaphragm)

NPS 1/4 and 1/2

(DN 15) bodies

1D687506992

NPS 3/4 and 1

(DN 20 and 25) bodies

1E547706992

NPS 1-1/2 and 2 (DN 40 and 50) bodies

Type 98H only

1C782206992

NACE Tag

19A6034X012

Tag Wire (NACE)

1U7581X0022

Summary of Contents for Fisher 98HD

Page 1: ...es Inc instructions If a leak develops or if the outlet continually vents gas service to the unit may be required Failure to correct trouble could result in a hazardous condition Only a qualified person must install or service the unit Installation operation and maintenance procedures performed by unqualified personnel may result in improper adjustment and unsafe operation Either condition may res...

Page 2: ...Trims To 315 F 157 C To 406 F 208 C 98LD 98HD 125 8 62 300 20 7 50 3 4 250 17 2 50 3 4 50 3 4 Maximum Temperature Ranges of Diaphragm and Seat Materials 1 4 material temperature range F C Metal All Nitrile NBR Neoprene CR Fluorocarbon FKM Ethylenepropylene EPDM Polytetrafluoroethylene PTFE PerFluorocarbon FKM FFKM 40 to 450 F 40 to 232 C 20 to 180 F 29 to 82 C 40 to 180 F 40 to 82 C 0 to 300 F 18 ...

Page 3: ...s are used to maintain a differential between the controlled pressure and loading pressure of a system The spring setting determines the differential The Types 98LD and 98HD can also be pressure loaded to remotely change the relief setpoint The relief valve responds to both controlled pressure and loading pressure and opens or closes as these pressures change If the loading pressure increases pres...

Page 4: ...6 167 6 56 167 1 All springs may be backed off to 0 psig 0 bar However highest capacities and best performances are obtained by using these springs in their recommended ranges Installation Unbox and inspect the valve Remove pipe scale and other foreign material from the connecting pipeline Apply a suitable pipe compound to the male threads The relief valve can be installed in any position as long ...

Page 5: ...constructions Use pressure gauges to monitor inlet pressure outlet pressure and any intermediate pressure during startup With proper installation completed and system equipment properly adjusted close any block and vent valves and back out the adjusting screw by turning it counterclockwise or by turning the handwheel in the same manner Slowly open the following valves in this order loading supply ...

Page 6: ...of heavy plate glass b Take the valve plug or orifice and move it in a Figure 8 motion on the lapping compound Do not allow the part to tip or rock since this would round the corners c Repeat step b for each part using an 800 grit or 1000 grit silicon carbide or aluminum oxide lapping compound d Wash away all traces of the lapping compound To help prevent scratching the seating surfaces a light co...

Page 7: ...in the unit so that they are facing toward the assembler toward the spring except only when one metal diaphragm is being used then the raised surface should be facing down towards the body See Figures 4 and 5 as references 9 Put the diaphragm assembly into position in the body 10 Replace the packing as instructed below Table 2 Torque Specifications body size NPS DN spring case Foot pound N m orifi...

Page 8: ...NPS 1 4 body R98LX000042 NPS 1 2 DN 15 body R98LX000052 NPS 3 4 and 1 DN 20 and 25 bodies R98LX000062 1 Body See following table 2 Spring Case Type 98HD Steel NPS 1 4 body 2L443222012 NPS 1 2 DN 15 body 2L324122012 NPS 3 4 and 1 DN 20 and 25 bodies 3E408822012 316 SST NPS 1 4 body 2L443233092 NPS 1 2 DN 15 body 2L3241X0012 NPS 3 4 and 1 DN 20 and 25 bodies 3E4088X00A2 Type 98LD Steel NPS 1 4 body ...

Page 9: ...24052 NPS 1 2 DN 15 body 10 required 1A381624052 NPS 3 4 and 1 DN 20 and 25 bodies 12 required 1A336924052 Type 98HD NPS 1 4 body 6 required 1A391724052 NPS 1 2 DN 15 body 8 required 1A352624052 NPS 3 4 and 1 DN 20 and 25 bodies 8 required 1A341824052 18 Drive Screw SST 2 required not shown 1A368228982 19 Diaphragm Gasket Use with 302 SST diaphragm Type 98LD NPS 1 4 body 2 required 1E394004022 NPS...

Page 10: ...8H only 11A9809X022 33 Adjusting Screw SST NPS 1 4 body 1L449535232 NPS 1 2 DN 15 body 1L449735232 NPS 3 4 and 1 DN 20 and 25 bodies 1L324435232 NPS 1 1 2 and 2 DN 40 and 50 bodies Type 98H only 21A9808X012 Recommended spare part Key Description Part Number 34 Packing Follower NPS 1 4 body 316 SST 1K885035072 NPS 1 2 3 4 and 1 DN 15 20 and 25 bodies 1K884924092 35 Packing Box Nut Steel zinc plated...

Page 11: ...04X022 1V4541X0022 2 50 10A0192X012 10A4986X012 10A0192X022 10A4986X052 Key 1 Regulator Body SWE body size NPS DN type 98hd body material type 98ld body material Steel Stainless Steel Steel Stainless Steel 1 2 15 2L9673X0022 2L9673X0012 2U8059X0012 2U8059X0022 3 4 20 2N443922012 2N4439X0012 2N4463X0012 2N4463X0022 1 25 2N414422012 2N4144X0012 2N445222012 2N4452X0012 1 1 2 40 3V4542X0012 3V4542X002...

Page 12: ...ance 28320 Tel 33 0 2 37 33 47 00 TESCOM Emerson Process Management Tescom Corporation USA Headquarters Elk River Minnesota 55330 2445 USA Tel 1 763 241 3238 Europe Selmsdorf Germany 23923 Tel 49 0 38823 31 0 For further information visit www emersonprocess com regulators Types 98LD and 98HD Key 11 Relief Valve Spring body size NPS DN Type 98ld range TYPE 98hd range color code part number Psi bar ...

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