Types 98L and 98H Backpressure Regulators and Relief Valves

Instruction Manual Form 70 Types 98 and 98H January 0 Types 98 and 98H Backpressure Regulators and Relief Valves W65 W66 TYPE 98H OR 98HM TYPE 98 Figure. Types 98 and 98H Backpressure Regulators and Relief Valves! WARNING Failure to follow these instructions or to properly install and maintain this equipment could result in an explosion, fire and/or chemical contamination causing property damage and personal injury or death. Fisher backpressure regulators and relief valves must be installed, operated, and maintained in accordance with federal, state, and local codes, rules, and regulations, and Emerson Process Management Regulator Technologies, 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 result in equipment damage or personal injury. Use qualified personnel when installing, operating, and maintaining the Types 98 and 98H backpressure regulators and relief valves. Introduction Scope of the Manual This manual provides instructions for the installation, adjustment, maintenance, and parts ordering information of Types 98 and 98H Backpressure Regulators and Relief Valves. Instructions and parts lists for other equipment mentioned in this instruction manual are found in separate manuals. Description Types 98 and 98H are direct-operated, spring-loaded backpressure regulators or relief valves. Typical applications include use in wash tanks, small heaters, fuel and oil lines, air supply systems, test fixtures, and sterilizers. Relief pressure ranges are to 38 psig / D0058X0 www.fisherregulators.com

Specifications Available Constructions Type 98: Direct-operated low-pressure backpressure regulator/relief valve with internal pressure registration and standard adjusting screw for to 38 psig / 0,4 to,6 bar set pressure range Type 98H: Direct-operated high-pressure backpressure regulator/relief valve with internal pressure registration and standard adjusting screw for 5 to 00 psig / 0,34 to 3,8 bar set pressure range : Direct-operated high-pressure backpressure regulator/relief valve with external pressure registration and standard adjusting screw for 5 to 75 psig / 0,34 to 9,0 bar set pressure range Body Sizes and End Connection Styles TYPE BODY MATERIA Cast Iron WCC Steel, CF8M Stainless steel 98 /4, /, 3/4, NPT /4 through NPT, NPS / through / DN through 5, SWE, C0 RF, C300 RF, PN6/5/40 RF /4 through NPT, 98H /4, /, 3/4,, NPS / through / DN through -/, NPT 50, SWE, C0 RF, C300 RF, PN 6/5/40 RF 98HM /, 3/4,, -/, NPT Maximum Cold Working Pressures of Body Size and Materials ()() REGUATOR Type 98 Type 98H BODY SIZE All Sizes All Sizes All Sizes Flow Coefficient C : 35 IEC Sizing Coefficients BODY AND SPRING CASE MATERIAS Cast Iron Steel Stainless Steel Cast Iron Steel Stainless Steel Steel Stainless Steel MAXIMUM INET PRESSURE (3) psig bar 60 5 5 300 300 300 300 300 4, 8,6 8,6 0,7 0,7 0,7 0,7 0,7 BODY SIZE X T F D F K NPS DN m /4 0.9 0.83 / 0.83 0.69 0.78 0.50 3/4 and 0 and 5 0.88 0.77 -/ and 40 and 50 0.9 0.85 Relief Pressure Ranges See Tables and Shutoff Classification Per ANSI/FCI 70-3-004 Metal Seats: Class IV Polytetrafluoroethylene (PTFE): Class IV Elastomer Seats: Class VI Temperature Capabilities for Elastomer Parts ()(4) MATERIA TEMPERATURE RANGE -40 to 80 F / -40 to 8 C Neoprene (CR) -40 to 80 F / -40 to 8 C 0 to 300 F / -8 to 49 C (5) imited to 00 F / 93 C for hot water Ethylenepropylene (EPDM) (5) -40 to 75 F / -40 to 35 C Perfluoroelastomer (FFKM) (5) 0 to 45 F / -8 to 8 C PTFE Diaphragm protector -40 to 400 F / -40 to 07 C Temperature Capabilities for Metal Parts ()(4) MATERIA TEMPERATURE RANGE Cast iron (6) -40 to 406 F / -40 to 07 C WCC Steel -0 to 450 F / -9 to 3 C CF8M Stainless steel -40 to 450 F / -40 to 3 C Sensing ine Connection NPS /, -/, or / DN, 40, or 50 Body: /8 NPT NPS 3/4 or / DN 0 or 5 Body: /4 NPT Pressure Registration Types 98 and 98H: Internal : External Options Handwheel or tee handle for Types 98 and 98H Tapped spring case vent for Types 98, 98H, and 98HM Seal washer to permit spring case pressure loading for Types 98, 98H, and 98HM Approximate Weights Type 98 NPS /4 Body: 6 pounds / 3 kg NPS / / DN Body: 3 pounds / 6 kg NPS 3/4 / DN 0 Body: 30 pounds / 4 kg NPS / DN 5 Body: 30 pounds / 4 kg Type 98H NPS /4 Body: 7 pounds / 4 kg NPS / / DN Body: 7 pounds / kg NPS 3/4 / DN 0 Body: 6 pounds / 7 kg NPS / DN 5 Body: 6 pounds / 7 kg NPS -/ / DN 40 Body: 55 pounds / 5 kg NPS / DN 50 Body: 55 pounds / 5 kg NPS / / DN Body: 8 pounds / 4 kg NPS 3/4 or / DN 0 or 5 Body: 0 pounds / 9 kg NPS -/ or / DN 40 or 50 Body: 73 pounds / 33 kg. The pressure/temperature limits in this instruction manual or any applicable standard limitation should not be exceeded.. Temperature and/or the body end connection may decrease these maximum pressures. 3. Maximum inlet pressure equals set pressure plus buildup. 4. Pressure and/or the body end connection may decrease these maximum temperatures. 5. Not for use on steam service. 6. Not available for.

REGISTRATION HOE CONTRO SPRING EASTOMER DIAPHRAGM CONTRO SPRING EASTOMER DIAPHRAGM VAVE PUG VAVE PUG C OMP O-RING SEAT TO UPSTREAM SENSING INE ORIFICE ORIFICE A695 INET PRESSURE OUTET PRESSURE ATMOSPHERIC PRESSURE TYPE 98H (ASO TYPICA OF 98) M5 INET PRESSURE OUTET PRESSURE ATMOSPHERIC PRESSURE TYPE 98HM Figure. 98 Series Operational Schematics 0,4 to,6 bar, in four ranges, for Type 98 and to 00 psig /,0 to 3,8 bar, in four ranges for each sizes, for Type 98H. Type 98 is available on body sizes NPS /4, /, 3/4, and / DN, 0, and 5 and Type 98H on body sizes NPS /4, /, 3/4,, -/, and / DN, 0, 5, 40, and 50. The can be used for backpressure or relief applications in liquid, gas, or steam service. The features a sensing line connection for sensing pressure externally from the regulator. The is a direct-operated, spring-to-close regulator and requires no external power to operate. A seal washer for the set screw can be included when applications require pressure loading of the spring case (not available on NPS -/ and / DN 40 and 50 bodies). Note Using a as a relief valve does not exclude the installation of an ASME certified full flow relief valve as specified by local codes and regulations or system design. Principle of Operation Relief or backpressure valves respond to changes in upstream pressure. Pressure changes register under the diaphragm (see Figure ) through a registration hole in the valve body (through upstream sensing line connection for ). When the pressure increases beyond the spring setting, the diaphragm pressure overcomes the spring compression. This causes the valve plug to move away from the orifice. The flow line through the valve is open and excess pressure is vented. When upstream pressure drops back to normal, the valve resumes its closed position. Installation! WARNING Personal injury or system damage may result if this relief valve/backpressure regulator is installed where service conditions could exceed the limits given on the Specifications section 3

Table. Types 98 and 98H Relief Set Pressure Ranges TYPE 98 REIEF SET TYPE 98H REIEF SET SPRING WIRE SPRING FREE BODY SIZES PRESSURE RANGE () PRESSURE RANGE () SPRING PART SPRING COOR DIAMETER ENGTH NUMBER NPS DN psig bar psig bar Inches mm Inches mm /4 / 3/4 and -/ and 0 and 5 40 and 50 to 7 6 to 4 to 5 0 to 38 to 7 6 to 4 to 5 0 to 38 to 7 6 to 4 to 5 0 to 38 0,4 to 0,48 0,4 to 0,97 0,83 to,7,4 to,6 0,4 to 0,48 0,4 to 0,97 0,83 to,7,4 to,6 0,4 to 0,48 0,4 to 0,97 0,83 to,7,4 to,6 to 35 5 to 75 70 to 40 30 to 00 to 35 5 to 75 70 to 40 30 to 00 to 35 5 to 75 70 to 40 30 to 00 5 to 35 0 to 65 50 to 00 80 to 70,0 to,4,7 to 5, 4,8 to 9,6 9,0 to 3,8,0 to,4,7 to 5, 4,8 to 9,6 9,0 to 3,8,0 to,4,7 to 5, 4,8 to 9,6 9,0 to 3,8 0,3 to,4,4 to 4,5 3,5 to 6,9 5,5 to,7 Yellow Green Red Blue Yellow Green Red Blue Yellow Green Red Blue Dark Gray ight Blue ight Gray Black E39570 E39670 E39774 34674 E395670 D7455T00 E395779 380074 E398970 E399074 E39976 380708 E793709 E7953708 E7954708 P7888708. 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. 0.48 0.70 0.07 0.5 0.07 0.34 0.8 0.33 0.306 0.343 0.406 0.468 0.468 0.53 0.56 0.65 3,76 4,3 5,6 5,7 5,6 5,94 7,4 8,4 7,77 8,7 0,3,9,9 3,5 4,,9.00.00.93.08.50.0.44.5 4.00 4.00 4.00 3.75 6.56 6.56 6.56 6.56 50,8 50,8 49,0 5,8 63,5 5,9 6,0 57, 0 0 0 95,3 67 67 67 67 SPRING MATERIA Steel Stainless Steel SPRING WIRE SPRING FREE BODY SIZES SPRING RANGE () SPRING SPRING PART DIAMETER ENGTH COOR NUMBER NPS DN psig bar Inches mm Inches mm / 3/4 and 0 and 5 -/ and 40 and 50 / 3/4 and 0 and 5 to 35 5 to 75 70 to 40 30 to 00 to 35 5 to 75 70 to 40 30 to 00 5 to 35 0 to 65 50 to 00 80 to 70 to 00 00 to 75 to 00 00 to 75 Table. Relief Set Pressure Ranges,0 to,4,7 to 5, 4,8 to 9,6 9,0 to 3,8,0 to,4,7 to 5, 4,8 to 9,6 9,0 to 3,8 0,34 to,4,4 to 4,5 3,5 to 6,9 5,5 to,7,0 to 6,9 6,9 to 9,0,0 to 6,9 6,9 to 9,0 Yellow Green Red Blue Yellow Green Red Blue Dark Gray ight Blue ight Gray Black Unpainted Unpainted Unpainted Unpainted E395670 D7455T00 E395779 380074 E398970 E399074 E39976 380708 E793709 E7953708 E7954708 P7888708 4B9943X0 4B994X0 4B9944X0 4B9945X0. 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. 0.07 0.34 0.8 0.33 0.306 0.343 0.406 0.468 0.469 0.53 0.563 0.656 0.8 0.375 0.43 0.56 5,6 5,94 7,4 8,4 7,77 8,7 0,3,9,9 3,5 4,3 6,7 7,6 9,53,0 4,.50.6.44.5 4.00 4.00 4.00 3.75 6.50 6.50 6.50 6.50.50.50 4.03 4.03 63,5 66,5 6,0 57, 0 0 0 95,3 65 65 65 65 63,5 63,5 0 0 BODY SIZES SPRING CASE ORIFICE NPS DN FOOT-POUNDS N m FOOT-POUNDS N m /4 / 3/4, -/, 0, 5 40, 50 Table 3. Torque Specifications 4.5 to 5.0 0 to 3 4 to 30 40 to 50 6, to 6,8 4 to 8 33 to 4 54 to 68 8 to 9 to 35 33 to 4 40 to 70 to 6 39 to 47 45 to 57 90 to 30 or regulator nameplate. Installations should be adequately protected from physical damage. Overpressuring any portion of this equipment may cause equipment damage, leaks in the relief valve/ backpressure regulator, or personal injury due to bursting of pressurecontaining parts. System operation within the limits shown in the Specifications section (page ) does not eliminate the possibility of damage from external sources or debris in the pipeline. The relief valve/backpressure regulator should be inspected for damage regularly and after any overpressure condition. Unbox and inspect the valve. Remove pipe scale and other foreign material from the connecting pipeline. Apply a suitable pipe compound to the external threads. The relief valve can be installed in any position as long as the flow is in the direction indicated by the arrow cast on the body. 4

Overpressure Protection! WARNING Overpressuring any portion of this equipment may result in equipment damage, leaks in the relief valve / backpressure regulator, or personal injury due to bursting of pressure-containing parts. The system should be inspected after any overpressure condition. Relief or backpressure ranges are from to 00 psig / 0,4 to 3,8 bar. The individual spring range of your relief valve is stamped on the nameplate. Maximum inlet pressures depend upon body materials and temperatures. See the Specifications section for the maximum inlet pressure of the valve. The valve should be inspected for damage after any overpressure condition. Vents! WARNING If using a Type 98, 98H, or 98HM Backpressure Regulator or Relief Valve on hazardous or flammable gas service, personal injury and property damage could occur due to fire or explosion of vented gas that may have accumulated. To prevent such injury or damage, provide piping or tubing to vent the gas to a safe, well-ventilated area. Also, when venting a hazardous gas, the piping or tubing should be located far enough away from any buildings or windows so to not create a further hazard, and the vent opening should be protected against anything that could clog it. If remote venting is necessary, an optional tapped vent in the spring case is available. Install remote vent lines in the spring case and outlet openings. The vent lines must have the largest practical diameter and be as short as possible with a minimum number of bends or elbows. Startup Key numbers are shown in Figures 3 through 5. With proper installation completed and system equipment properly adjusted, close any vent valves, and slowly open the upstream shutoff valve while using pressure gauges to monitor pressure. If set pressure adjustment is necessary, monitor the inlet pressure with a gauge during the adjustment procedure. Adjustment Each unit is factory set for the pressure specified on your order. The allowable spring range is stamped on the nameplate. If a pressure setting beyond the indicated range is required, replace with the appropriate spring. Be sure to label the valve to indicate the new pressure range. Always use a pressure gauge to monitor pressure when making adjustments. All regulator springs can be backed off to 0 psig / 0 bar. Recommended set pressure ranges available, maximum inlet pressures and temperatures, and color codes of the respective springs are shown in the Specifications section and Tables and. oosen the jam nut (key 7). To increase the setting, turn the adjusting screw (key ) clockwise. Turn the adjusting screw counterclockwise to decrease the setting. Tighten the jam nut. Shutdown Close the upstream shutoff valve, and release all pressure from the backpressure regulator/relief valve. Maintenance! WARNING To avoid personal injury and equipment damage, isolate the valve from all pressure. Cautiously release pressure from the valve before attempting disassembly. Due to normal wear and damage that may occur from external sources, relief valve parts such as the O-rings, gaskets, diaphragm, orifice, and valve plug should be inspected periodically and replaced as necessary. The frequency of inspection and replacement depends upon the severity of service conditions or the requirements of state and federal laws. Instructions are given below for disassembly of the Types 98 and 98H backpressure regulators/relief valves. These valves do not have to be removed from the pipeline to inspect internal parts. Suitable lubricants are indicated on the assembly drawings. Apply the lubricants as the relief valve is being 5

reassembled. Refer to Figures 3, 4, and 5 while servicing the relief valve. CAUTION Metal diaphragms have thin sharp edges. To avoid hand cuts, use caution when handling the diaphragm and particularly the diaphragm edge. Type 98 relief valves contain or may contain a thin metal diaphragm. Use care when handling the metal diaphragms to prevent hand injuries or damage to the diaphragm.. Relieve the spring tension by loosening the jam nut (key 7) and turning the adjusting screw (key ) counterclockwise. Remove the cap screws (key 6). ift off the spring case (key ), upper spring seat (key 9), and spring (key ).. ift out the diaphragm unit which includes the pusher post (key 6), lower spring seat (key 8), diaphragm head (key 5, Type 98), washer (key 7), valve plug (key 4), and diaphragm (key ). There will be two diaphragms if the diaphragm material is metal or fluorocarbon (FKM) except for Type 98, NPS /4, to 7 psi / 0,4 to 0,48 bar range which uses only one metal diaphragm. For, two diaphragms are also required if material used is Ethylenepropylene (EPDM) except for NPS 3/4 or / DN 0 or 5 which uses only one Ethylenepropylene (EPDM) diaphragm. Refer to Figures 3, 4, and 5 for the diaphragm and gasket assembly. 3. Check the orifice (key 3). If it needs replacing or repairing, unscrew the valve plug guide (key 5) and then the orifice. The valve plug can be removed by sliding it off of the pusher post (key 6). Note If damage to elastomer or metal seating surfaces is severe, replace the orifice (key 3) and valve plug O-ring (key ) with new parts. However, by following the lapping procedure below, it is possible to repair metal seating surfaces if they are only slightly worn or scratched. 4. apping procedure: a. Place a small amount of 500-grit silicon carbide or aluminum oxide lapping compound on a flat surface such as a piece of heavy plate glass. b. Take the valve plug (key 4) or orifice (key 3) 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 000-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 coat of oil may be applied before returning the valve plug and orifice to the body (key ). See Table 3 for torque specifications. 5. Return the orifice and valve plug guide (key 5) to the body. 6. Place a small amout of sealant on the threads before installing the valve plug guide and the orifice. See Table 3 for torque specifications. 7. To replace the valve plug O-ring (key ), remove the screw (key 4) and O-ring retainer (key ) from the plug. Remove and replace the O-ring. 8. Separate the remainder of the diaphragm unit parts. Take the locknut (key 6) off of the pusher post (key 6). Slide off the lock washer (key 3), lower spring seat, diaphragm head (Type 98), diaphragm, washer (key 7), and gasket (key 0). 9. Slip the plug (key 4) onto the pusher post. Place a gasket (key 0) on the shaft of the pusher post (key 6) over the threaded portion until it rests on the base of the post. If elastomer diaphragm is used, place a metal washer (key 7) on top of the gasket. For Type 98H, NPS -/ to / DN 40 to 50) with metal diaphragm, place another gasket on the shaft of the pusher post until it rests on the bottom diaphragm head (key 5), see Figure 4. Refer to Figures 3 to 5. Note If a metal diaphragm is to be replaced by an elastomer diaphragm or an elastomer diaphragm by a metal diaphragm, a new pusher post is required. Each diaphragm material requires a different pusher post length and make sure the proper number of metal or elastomer diaphragm that will be used is followed. Refer to the Parts ist section for the correct number of diaphragm to be used. 0. For the metal diaphragms, replace the large diaphragm gasket (key 9) on the surface of the body (key ) that will support the diaphragms. There will be two diaphragms used per regulator, 6

except for Type 98, NPS /4 with to 7 psi / 0,4 to 0,48 bar set pressure range which uses only one metal diaphragm. The raised surfaces of the metal diaphragms should be placed in the unit so that they are facing toward the assembler (toward the spring) except only when one diaphragm is being used then the raised surface should be facing down (towards the body). See Figures 3 to 5 as references.. Slip the lower spring seat (key 8) and lock washer (key 3) back onto the pusher post. Screw on the locknut (key 6) and return the diaphragm unit to the body (key ).. Set the spring (key ) in the lower spring seat and place the upper spring seat (key 9) on the spring. 3. Put the spring case (key ) over the spring and onto the body. Tighten the cap screws (key 6) finger tight only. 4. To ensure proper slack in the diaphragm, apply some spring compression by turning the adjusting screw clockwise. Finish tightening the cap screws. Parts Ordering When corresponding with your local Sales Office about this equipment, always reference the equipment serial number stamped on the nameplate. When ordering replacement parts, specify the complete -character part number of each required part as found in the following parts list. Separate kits containing all recommended spare parts are available. Parts ist Note In this parts list, parts marked NACE are intended for corrosion-resistant service as detailed in the NACE International standard MR075-003. Types 98, 98H, and 98HM (Figures 3, 4, and 5) Type 98 Parts Kits Elastomer Trim (include keys 3, 4, 0,,,, and 4) NPS /4 R98X0000 R98X0000 R98X00003 Metal Trim (include keys 3, 4, 0,, and 9) NPS /4 R98X00004 R98X00005 R98X00006 Type 98H Parts kit Elastomer Trim (include keys 3, 4, 0,, 4 (for NPS -/ and / DN 40 and 50 only),,, and 4) R98HX0000 R98HX0000 R98HX00003 R98HX00007 Metal Trim (include keys 3, 4, 0,, and 9) R98HX00004 R98HX00005 R98HX00006 R98HX00008 Parts Kits (include keys 3, 4, 0,, 9,,, 4, and 53) 46 Stainless steel trim With O-rings R98HMX000 With Ethylenepropylene (EPDM) O-rings R98HMXEPR 36 Stainless steel With O-rings R98HMX000 With Ethylenepropylene (EPDM) O-rings R98HMXEPR Body See following table Spring Case Type 98H Cast iron Standard E3990 J49690 3E397890 - - - Tapped 44990 - - - 3460890 4P784090 Steel Standard J750 4630 3E40870 - - - Tapped 44300 4400 346070 3P79040 36 Stainless steel Standard J75X00 4633309 3E4087X00 - - - Tapped 4430X00 440X00 34607X00 3P7904X00 Type 98 Cast iron Standard E39390 3J496390 4E397990 *Recommended spare part. 7

SPRING (KEY ) META DIAPHRAGMS (KEY ) 7 SPRING (KEY ) DIAPGHRAGM GASKET (KEY 9) TYPE 98 EXCEPT FOR NPS /4, TO 7 psi / 0,4 TO 0,48 bar RANGE WITH TWO META DIAPHRAGMS META DIAPHRAGM (KEY ) 9 3 5 A.S. 6 8 5 DIAPGHRAGM GASKET (KEY 9) 6 TYPE 98 (NPS /4, TO 7 psi / 0,4 TO 0,48 bar RANGE) WITH ONE META DIAPHRAGM 9 0 6 4 3 30A707 A.S - APPY ANTI-SEIZE COMPOUND N.S - APPY NEVER-SEEZ TYPE 98 ASSEMBY WITH META DIAPHRAGM N.S. 7 9 3 5 6 A.S. 6 8 5 4 4 30A708 6 7 0 A.S - APPY ANTI-SEIZE COMPOUND N.S - APPY NEVER-SEEZ - APPY PIPE THREAD SEAANT (S) TYPE 98 ASSEMBY WITH EASTOMER DIAPHRAGM S N.S. 3 Never-Seez is a trademark of Bostik, Inc. Figure 3. Type 98 Relief Valve Assemblies 8

SPRING (KEY ) DIAPGHRAGM GASKET (KEY 9) FOR TYPE 98H WITH META DIAPHRAGMS META DIAPHRAGMS (KEY ) 7 6 A.S. 9 3 6 8 0 FOR TYPE 98H, NPS -/ AND / DN 40 AND 50 WITH GASKETS (KEY 0) AND DIAPHRAGM HEADS (KEY 5) 9 6 A.S. 4 5 30A709 0 FOR TYPE 98H, NPS /4 THROUGH / DN 5 3 N.S. TYPE 98H ASSEMBY WITH META DIAPHRAGM A.S. 7 6 9 3 4 6 8 5 7 0 4 6 A.S. 30A7030 A.S - APPY ANTI-SEIZE COMPOUND N.S - APPY NEVER-SEEZ - APPY PIPE THREAD SEAANT (S) 3 N.S. 4 S TYPE 98H ASSEMBY WITH EASTOMER DIAPHRAGM Figure 4. Type 98H Relief Valve Assemblies 9

SPRING (KEY ) META DIAPHRAGMS (KEY ) DIAPGHRAGM GASKET (KEY 9) TYPE 98HM WITH META DIAPHRAGMS FOR TYPE 98HM WITH META DIAPHRAGMS, ASSEMBE DIAPHRAGM GASKETS AND META DIAPHRAGMS ATERNATEY (AS SHOWN ABOVE) 7 54 6 6 9 3 8 9 0 6 4 3 53 5 37B4753 APPY UBRICANT () TYPE 98HM ASSEMBY WITH META SEAT AND DIAPHRAGM 7 54 9 3 6 8 6 37B4754 APPY UBRICANT () / SEAANT (S) 53 9 0 4 3 6 5 S 4 TYPE 98HM ASSEMBY WITH EASTOMER SEAT AND META DIAPHRAGM Figure 5. Relief Valve Assemblies 0

7 54 6 6 9 3 8 53 7 0 4 3 6 5 S 4 39B3360 APPY UBRICANT () / SEAANT (S) TYPE 98HM WITH EASTOMER SEAT AND DIAPHRAGM Figure 5. Relief Valve Assemblies (continued) UBE OI COOER SENSING INE PUMP TYPE 98HM UBE OI RESERVOIR Figure 6. Used in a Typical Bypass Application

Spring Case (continued) Type 98 (continued) Tapped - - - 34490 446090 Steel Standard J790 3460 4E5990 Tapped - - - 3440 446090 36 Stainless steel Standard J79X00 346X00 4E5993309 Tapped 448X00 344X00 44609X003 Steel 4400 346070 3P79040 Stainless Steel 440X00 34607X00 3P7904X00 3* Orifice See following table 4* Valve Plug See following table 5 Valve Plug Guide Types 98 and 98H 46 Stainless steel 3458353 346353 349353 P7885353 36 Stainless steel, NACE 34583507, NACE 346X00, NACE 3493507, NACE P78853507 Metal Seat and Metal Diaphragm 46 Stainless steel 346353 36 Stainless steel 346X00 Elastomer Seat and Metal Diaphragm 46 Stainless steel 346353 36 Stainless steel 346X00 Elastomer Seat and Elastomer Diaphragm 46 Stainless steel 3463503 36 Stainless steel 346X00 46 Stainless steel 8B556X0 36 Stainless steel 8B556X0 46 Stainless steel 8B359X0 36 Stainless steel 8B359X0 6 Pusher Post See following table 7 Washer (Elastomer diaphragm only) 46 Stainless steel trim 3447360 3398360 348360 *Recommended spare part. 7 Washer (Elastomer diaphragm only) (continued) 36 Stainless steel trim, Standard 3447364, NACE 3447X00, Standard 33983507, NACE 33984003, Standard 348364, NACE 348X00 8 ower Spring Seat, Aluminum 3446090, Aluminum 3397080, Plated Steel (For only with SST Spring) 7B4480X0, Aluminum 347080, Plated Steel (For only with SST Spring) 7B3088X0, Steel plated P78774 9 Upper Spring Seat, Steel plated B7985506 D667507 (For only with SST Spring) 4B995X0 E3987507 (For only with SST Spring) 4B995X0 P7876409 0* Gasket Types 95 and 95H, Composition 3448040 34040 3434040 ( required, for Type 98H only) P7880040 Graphite 34X00 3434X003 Composition 34040 3434040 NPS -/ and / DN 40 and 50 P7880040 Relief Valve Spring See Tables and * Diaphragm See following table 3 Nameplate, (not shown) - - - 4* O-Ring, Type 98H only, NPS -/ and / DN 40 and 50 bodies, Elastomer seat only C780699 K7560638 Fluorocarbon, NACE K7563507 Adjusting Screw, Steel plated, (standard) C60399, (standard) D99544870, For Handwheel J4964898, only (SST Spring) D9954X003, (standard) A3308898, only (SST Spring) A3308X009, (standard) A680899 6 Cap Screw Zinc-plated steel Type 98 (0 required) A4078405 (0 required) A386405 ( required) A3369405 Types 98H and 98HM (not available to ) (6 required) A397405 (8 required) A356405 (8 required) A348405 (8 required) K5684898

6 Cap Screw (continued) Stainless alloy Type 98 (0 required) A4078X00 (0 required) A386X0 ( required) A3369X0 Type 98H (6 required) A397X006 (8 required) A356X04 (8 required) A348X033 (8 required) K5684X003 For Steel Springs (8 required) A356405 NPS 3/4 and / DN 0 and 5 (8 required) bodies A348405 NPS -/ and / DN 40 and 50 (8 required) bodies K5684898 For Stainless Springs (8 required) A356X04 NPS 3/4 and / DN 0 and 5 (8 required) bodies A348X033 7 Jam Nut, Zinc-plated steel A354 A35374, (For only with SST Spring) T0863544 A394, (For only with SST Spring) A39K00 A3684 8 Drive Screw (not shown) ( required) A368898 9* Diaphragm Gasket, Composition (use with 30 Stainless steel diaphragm) Type 98H E393040 E396040 E3993040 P7879040 Type 98 E3940040 E3970040 E3904040 9* Diaphragm Gasket, Composition (continued) Composition ( required) Graphite ( required) 0 Diaphragm Protector, PTFE (not shown) Type 98 Type 98H NPS -/ to / DN 40 and 50 bodies E396040 E3993040 P7879040 E396X00 E3993X00 A53X0 A533X0 A534X0 A535X0 A536X0 A537X0 A557X0 A536X0 A537X0 O-Ring Retainer (Elastomer seat only) 46 Stainless steel 3460353 36 Stainless steel, NACE 34603507 NPS / (DN ) body 46 Stainless steel 34353 36 Stainless steel, NACE 343507 NPS 3/4 and (DN 0 and 5) bodies 46 Stainless steel 3430353 36 Stainless steel, NACE 34303507 NPS -/ and (DN 40 and 50) bodies 46 Stainless steel P7875353 36 Stainless steel, NACE P78753507 * O-Ring Types 98 and 98H, Elastomer seat only Ethylenepropylene (EPDM) C85380699 C8538X005 D8880699 N5300638 D888X004 C780699 C78X007 Key Types 98 and 98H Regulator Body, NPT BODY SIZE TYPE 98H TYPE 98 NPS DN Cast Iron Steel 36 Stainless steel Cast Iron Steel 36 Stainless steel /4 / 3/4 -/ 0 5 40 50 346490 339590 34590 34690 3P786890 3P786790 370 36870 37340 37350 3P78680 3P78670 373309 36873309 37343309 37353309 3P78683309 3P78673309 346590 33990 34990 34090 3730 36890 380 3830 3733309 36893309 383309 3833309 Key Regulator Body, NPT BODY SIZE TYPE 98HM NPS DN Steel 36 Stainless Steel / 3/4 -/ 0 5 40 50 37B347X0 48B55X0 48B64X0 38B356X0 38B356X03 37B347X0 48B55X0 48B64X0 38B356X0 38B356X04 *Recommended spare part. 3

Key Types 98 and 98H Regulator Body, C0 and C300 RF Flanges TYPE 98H BODY MATERIA TYPE 98 BODY MATERIA BODY SIZE Steel Stainless Steel Steel Stainless Steel NPS DN C0 RF C300 RF C0 RF C300 RF C0 RF C300 RF C0 RF C300 RF / 3/4 -/ 0 5 40 50 V578X00 A6098X0 V3805X00 B0804X0 0A09X0 0A4987X0A 3B9543X0 U8048X00 V454X00 0A4986X0 V578X00 A6098X0 V3805X00B B0804X0 0A09X0 0A4987X0 3B9543X0 U8048X00 V454X00 0A4986X05 5A9930X0 V464X00 V364X00 0A470X0 4B37X0 U8047X00 5A9930X0 V464X00 V364X00 0A470X0 4B37X0 U8047X006 Key Types 98 and 98H Regulator Body, Socket Weld BODY SIZE TYPE 98H BODY MATERIA TYPE 98 BODY MATERIA NPS DN Steel Stainless Steel Steel Stainless Steel / 3/4 -/ 0 5 40 50 9673X00 N44390 N4440 3V454X00 30A09X0 9673X00 N4439X00 N444X00 3V454X00 30A09X03 U8059X00 N4463X00 N4450 U8059X00 N4463X00 N445X00 Key Types 98 and 98H Regulator Body, PN 6/5/40 RF Flanged Bodies BODY SIZE TYPE 98H BODY MATERIA TYPE 98 BODY MATERIA NPS DN Steel 36 Stainless Steel Steel 36 Stainless Steel / 3/4 -/ 0 5 40 50 4B36X0 4B36X03 4B36X05 4B36X07 4B3X0 4B36X0 4B36X04 4B36X06 4B36X08 4B3X0 4B959X0 4B37X0 4B37X03 4B959X0 4B37X0 4B37X04 BODY SIZES META TO META SEAT Key 3* Orifice EASTOMER SEAT Standard Applications NPS DN 46 Stainless Steel 36 Stainless Steel 46 Stainless Steel 36 Stainless Steel /4 / 3/4, 0, 5 E396467 E3950467 E3980467 E3963507 E39503507 E39803507 3459353 347353 343353 34593507 3473507 3433507 NACE Applications 34593507 3473507 3433507 -/, 40, 50 P7870467 P78703507 P787353 P7873507 P7873507 BODY SIZES META TO META SEAT Key 4* Types 98 and 98H Valve Plug EASTOMER SEAT Standard Applications NPS DN 46 Stainless Steel 36 Stainless Steel 46 Stainless Steel 36 Stainless Steel /4 / 3/4, 0, 5 345467 344467 3437467 3453507 344356 3437356 345353 3443353 3436353 3453507 34433507 34363507 NACE Applications 3453507 34433507 34363507 -/, 40, 50 P787467 P7873507 P7873467 P78733507 P78733507 *Recommended spare part. 4

BODY SIZES META SEAT AND META DIAPHRAGM Key 4* Valve Plug EASTOMER SEAT AND META DIAPHRAGM EASTOMER SEAT AND EASTOMER DIAPHRAGM NPS DN 46 Stainless steel 36 Stainless steel 46 Stainless steel 36 Stainless steel 46 Stainless steel 36 Stainless steel / 7B3475X0 7B3475X0 7B3474X03 7B3474X0 7B3474X03 7B3474X0 3/4, 0, 5 8B555X0 8B555X0 8B554X0 8B554X0 8B554X0 8B554X0 /, 40, 50 8B358X0 8B358X0 8B3530X0 8B3530X0 8B3530X0 8B3530X0 Key 6 Pusher Post BODY SIZES META TO META SEAT EASTOMER SEAT Standard Applications NPS DN 46 Stainless Steel 36 Stainless Steel 46 Stainless Steel 36 Stainless Steel /4 / 3/4, -/, 0, 5 40, 50 3457353 3445353 3439353 P7883353 34573507 34453507 34393507 P78833507 3456353 344353 3438353 P7884353 34563507 3443507 34383507 P78843507 NACE Applications 34563507 3443507 34383507 P78843507 TYPES 98 BODY SIZES NPS DN Neoprene (CR) /4 / 3/4, 0, 5 34530 3430 3430 Key * Diaphragm Neoprene (CR) with PTFE Protector DIAPHRAGM MATERIA ( required) 3453040 343040 343040 Ethylenepropylene (EPDM) (3) 30 Stainless Steel ( required) 3454360 (4) 344360 34360 98H /4 34490 K34490 3449040 3450360 98H and 98HM / 340 34040 34X003 () 3399360 3/4, -/, 0, 5 40, 50 34330 P78809 3433X003 A347X0 3433X006 P788X00 (). required for Type 98H and for.. required. 3. Available to NPS / / DN Type 98H and all sizes. Please consult your local Sales Office for Ethylenepropylene (EPDM) option on other sizes. 4. Only metal diaphragm is required for Type 98, NPS /4, to 7 psi / 0,4 to 0,48 bar; metal diaphragms for other ranges. 343360 P7878360 * O-Ring, Elastomer Seat Only Ethylenepropylene (EPDM) Perfluoroelastomer (FFKM), Elastomer Seat Only Ethylenepropylene (EPDM) Perfluoroelastomer (FFKM) Ethylenepropylene (EPDM) Perfluoroelastomer (FFKM) -Ring, Type 98H only, Elastomer seat only, 3 ock Washer, Steel NPS /4 and / / DN bodies *Recommended spare part. D8880699 N5300638 N530X00 N530X00 C78X006 C78X007 C78X003 C78X005 P7874030 P78740638 P7874X003 P7874X00 P7874030 P78740638 C56898 H643899 A4878899 4 Machine Screw, Stainless steel, Elastomer seat only, NACE 3463899, NACE J49X00 34353899, NACE 3435X00, NACE P78863899 5 Diaphragm Head Type 98, Steel plated 3455507 3396507 34507 Type 98H, Metal Seat with 46 Stainless steel Trim, Steel/36 Stainless steel ( of each required) P78850/P7883507 36 Stainless steel Trim, 36 Stainless steel ( required) P7883507 Steel/36 Stainless steel ( of each required) P78850/P7883507 Elastomer Seat with 46 Stainless steel Trim, Steel ( required) P78850 36 Stainless steel Trim, 36 Stainless steel ( required) P7883507, NPS -/ and / DN 40 and 50 bodies ( required) P7883507

6 ocknut, Steel plated NPS /4 and / / DN bodies 7 Tee Handle Assembly (not shown), Types 98 and 98H only NPS /4 NPS 3/4 and / DN 0 and 5 8 Handwheel (not shown), Zinc, NPS / / DN Types 98 and 98H bodies only 9 Machine Screw (not shown), Steel plated, (with handwheel only) 30 ockwasher (not shown), Steel, (with handwheel only) 45* O-Ring (not shown) Types 98 and 98H (with sealed adjusting screw only) 50 Sealing Washer (not shown) Types 98 and 98H NPS / / DN NPS 3/4 and / DN 0 and 5 NPS / / DN NPS 3/4 and / DN 0 and 5 8734 874 P78874 F36000A F38000A J496440 6A5763X0 A353399 E54770699 V056990 A968X0 V056X00 A968X0 5 NACE Tag (not shown) - - - 5 Tag Wire (not shown), NACE - - - 53 O-Ring (for only) (not available with Metal Diaphragms) H940699 D375X00 D600699 Ethylenepropylene (EPDM) V809X00 D375X004 D60X005 53 O-Ring (for only) (continued) R600638 D3750638 D60X003 Perfluoroelastomer (FFKM) (not available with Composition Diaphragms) V809X00 D375X005 D60X008 54 Type Y60- (shown in the 98HM Series assemblies) 7A556X0 *Recommended spare part. Industrial Regulators Emerson Process Management Regulator Technologies, Inc. USA - Headquarters McKinney, Texas 75069-87, USA Tel: + 800 558 5853 Outside U.S. + 97 548 3574 Asia-Pacific Shanghai 006, China Tel: +86 89 9000 Europe Bologna 4003, Italy Tel: +39 05 49 06 Middle East and Africa Dubai, United Arab Emirates Tel: +97 48 800 For further information visit www.fisherregulators.com Natural Gas Technologies Emerson Process Management Regulator Technologies, Inc. USA - Headquarters McKinney, Texas 75069-87, USA Tel: + 800 558 5853 Outside U.S. + 97 548 3574 Asia-Pacific Singapore 846, Singapore Tel: +65 6777 8 Europe Bologna 4003, Italy Tel: +39 05 49 06 Gallardon 830, France Tel: +33 37 33 47 00 TESCOM Emerson Process Management Tescom Corporation USA - Headquarters Elk River, Minnesota 55330-445, USA Tels: + 763 4 338 + 800 447 50 Europe Selmsdorf 393, Germany Tel: +49 3883 3 87 Asia-Pacific Shanghai 006, China Tel: +86 89 9499 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, Inc., a business of Emerson Process Management. The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure 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. We reserve the right to modify or improve the designs or specifications of such products at any time without notice. Emerson Process Management 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 product remains solely with the purchaser. Emerson Process Management Regulator Technologies, Inc., 965, 0; All Rights Reserved