Emerson 98 Series Relief Valve Or Backpressure Regulator Instruction Manual
2015-03-30
: Emerson Emerson-98-Series-Relief-Valve-Or-Backpressure-Regulator-Instruction-Manual-681056 emerson-98-series-relief-valve-or-backpressure-regulator-instruction-manual-681056 emerson pdf
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Types 98LD and 98HD Instruction Manual Form 1571 September 2009 Types 98LD and 98HD Differential Pressure Relief Valves W6157 W6158 TYPE 98LD TYPE 98HD Figure 1. Types 98LD and 98HD Differential Pressure 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. 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 98LD and HD differential pressure relief valves. . Fisher® 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. Introduction 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. This manual provides instructions for the installation, maintenance, and parts ordering information of Types 98LD and 98HD Differential Relief Valves. Instructions and parts lists for other equipment mentioned in this instruction manual are found in separate manuals. D100259X012 Scope of the Manual www.emersonprocess.com/regulators Types 98LD and 98HD Specifications Available Configurations Type 98LD: Pressure-loaded with handwheel adjustment. Relief pressure ranges are 2 to 38 psig (0,14 to 2,62 bar). Type 98HD: Direct-operated with standard adjusting screw. Relief pressure ranges are 15 to 200 psig (1,03 to 13,8 bar). Body Sizes and End Connection Styles BODY MATERIAL TYPE WCC Steel, CF8M Stainless steel, Hastelloy® C, Monel® Cast Iron 98LD NPS 1/4, 1/2, 3/4, 1, NPT NPS 1/4 through 1, NPT; NPS 1/2 through 1, SWE, CL150 RF, CL300 RF, PN 16/25/40 RF 98HD NPS 1/4, 1/2, 3/4, 1, 1-1/2, 2, NPT NPS 1/4 through 2, NPT; NPS 1/2 through 2, SWE, CL150 RF, CL300 RF, PN 16/25/40 RF Maximum Cold Working Pressures of Body Size and Material(1)(2) BODY SIZE BODY AND SPRING CASE MATERIALs Type 98LD All Sizes Cast Iron Steel Stainless Steel 60 150 150 (4,1) (10,3) (10,3) Type 98HD All Sizes Cast Iron Steel Stainless Steel 300 300 400 (20,7) (20,7) (27,6) REGULATOR MAXIMUM INLET PRESSURE(3), PSIG (bar) IEC Sizing Coefficients XT FL Km 1/4 0.91 0.83 1/2 (15) 0.83 0.69 0.88 0.77 0.92 0.85 3/4 and 1 (20 and 25) type number steel (wcC) or stainless steel body, SST / all trims to 150°F(2) (66°C) All Trims to 150°F(3) (66°C) 0.78 1-1/2 and 2 (40 and 50) FD 0.50 Relief Pressure Ranges See Table 1 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) ---- 2 Metal Trims 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° to 149°) -40° to 450°F (-40° to 232°) -40° to 450°F (-40° to 232°) -20° to 450°F (-29° to 232°) Maximum Temperature Ranges of Body Materials(1)(4) REGULATOR BODY AND SPRING CASE MATERIALs temperature range Type 98LD Type 98HD Cast Iron Steel Stainless Steel -40° to 406°F (-40° to 208°C) -20° to 450°F (-29° to 232°C) -40° to 450°F (-40° to 232°C) Pressure Registration Internal Type 98HD NPS 1/4 Body: 7 pounds (3 kg) NPS 1/2 (DN 15) Body: 7 pounds (3 kg) NPS 3/4 (DN 20) Body: 16 pounds (7 kg) NPS 1 (DN 25) Body: 16 pounds (7 kg) NPS 1-1/2 (DN 40) Body: 55 pounds (25 kg) NPS 2 (DN 50) Body: 55 pounds (25 kg) Type 98LD NPS 1/4 Body: 6 pounds (3 kg) NPS 1/2 (DN 15) Body: 13 pounds (6 kg) NPS 3/4 (DN 20) Body: 30 pounds (14 kg) NPS 1 (DN 25) Body: 30 pounds (14 kg) Shutoff Classification Per ANSI/FCI 70-3-2004 Metal Seats: Class IV PTFE: Class IV Elastomer Seats: Class VI cast iron body Approximate Weights Flow Coefficient C1: 35 BODY SIZE, NPS (DN) Maximum Spring Case Loading Pressures, Psig (bar) (Spring Setting Plus Loading Pressure)(1) 1. The pressure/temperature limits in this Instructional Manual and any applicable standard or code limitation should not be exceeded. 2. Temperature and/or the body end connection may decrease these maximum pressures. 3. Maximum inlet pressure is equal to set pressure plus build-up. 4. Pressure and/or the body end connection may decrease these maximum temperatures. 5. Fluorocarbon is limited to 200°F (93°C) hot water. Hastelloy® C is a mark owned by Haynes International, Inc. Monel® is a mark owned by Special Metals Corporation Types 98LD and 98HD diaphragm loading pressure valve plug orifice controlled High pressure LOADING PRESSURE LOADING PRESSURE INLET PRESSURE INLET PRESSURE CL3746-A A1767-1 OUTLET PRESSURE OUTLET PRESSURE Figure 2. Type 98HD Relief Valve Operational Schematic LOADING PRESSURE INLET PRESSURE Product Description OUTLET PRESSURE Principle of Operation The Types 98LD and 98HD (see Figure 1) are differential pressure relief valves that are suitable for service on water, steam, air, gas, oil, and other fluids. They are used to maintain differential pressure control on testing fixtures, wash tanks, sterilizers, steam tables, fuel lines, and plant air supplies. See Figures 2 and 3. The Types 98LD and 98HD relief valves 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. . Type 98LD bodies are available in sizes NPS 1/4 to 1 (DN 25). Type 98HD bodies are available in sizes NPS 1/4 to 2 (DN 50). There are four relief pressure ranges for each relief valve. For Type 98LD, the ranges are between 2 and 38 psig (0,14 and 2,6 bar). For Type 98HD, they are between 15 and 200 psig (1,0 and 13,8 bar). . The relief valve responds to both controlled pressure and loading pressure and opens or closes as these pressures change. If the loading pressure increases, pressure on the upper side of the diaphragm increases. The valve plug moves closer to the orifice and restricts the flow through the relief valve. When loading pressure decreases, pressure on the upper side of the diaphragm decreases. This allows the valve plug to move away from the orifice and allow more flow through the relief valve (to atmosphere or back into the system). The relief valve opens and closes in response to changes in the controlled pressure. In this way, the differential pressure between the controlled and uncontrolled pressures is maintained. . Specifications The Specifications section gives some general specifications for the Types 98LD and 98HD regulators. The nameplates give detailed information for a particular regulator as it comes from the factory. 3 Types 98LD and 98HD low pressure (for loading) relief outlet and optional piping to system loading pressure high pressure PM O C uncontrolled low pressure METAL B0878-2 controlled high pressure controlled high pressure pump Figure 3. Installation Schematics for Types 98LD and 98HD Relief Valves Table 1. Differential Relief Pressure Ranges body size, inches (DN) TYPE 98LD(1) TYPE 98HD(1) part number SPRING WIRE DIAMETER, INCHES (mm) SPRING FREE LENGTH, INCHES (mm) Psi bar Psi bar color code 1/4 2 to 7 6 to 14 12 to 25 20 to 38 0,14 to 0,48 0,41 to 0,97 0,83 to 1,7 1,4 to 2,6 15 to 35 25 to 75 70 to 140 130 to 200 1,03 to 2,4 1,7 to 5,2 4,8 to 9,7 9,0 to 13,8 Yellow Green Red Blue 1E392527022 1E392627012 1E392727142 1L346127142 0.148 (3,76) 0.170 (4,32) 0.207 (5,26) 0.225 (5,72) 2.00 (50,8) 2.00 (50,8) 1.93 (49,0) 2.08 (52,8) 1/2 (15) 2 to 7 6 to 14 12 to 25 20 to 38 0,14 to 0,48 0,41 to 0,97 0,83 to 1,7 1,4 to 2,6 15 to 35 25 to 75 70 to 140 130 to 200 1,03 to 2,4 1,7 to 5,2 4,8 to 9,7 9,0 to 13,8 Yellow Green Red Blue 1E395627022 1D7455T0012 1E395727192 1L380027142 0.207 (5,26) 0.234 (5,94) 0.281 (7,14) 0.331 (8,41) 2.50 (63,5) 1.02 (25,9) 2.44 (62,0) 2.25 (57,2) 3/4 and 1 (20 and 25) 2 to 7 6 to 14 12 to 25 20 to 38 0,14 to 0,48 0,41 to 0,97 0,83 to 1,7 1,4 to 2,6 15 to 35 25 to 75 70 to 140 130 to 200 1,03 to 2,41 1,7 to 5,2 4,8 to 9,7 9,0 to 13,8 Yellow Green Red Blue 1E398927022 1E399027142 1E399127162 1L380127092 0.306 (7,77) 0.343 (8,71) 0.406 (10,3) 0.468 (11,9) 4.00 (102) 4.00 (102) 4.00 (102) 3.75 (95,3) 1-1/2 and 2 (40 and 50) ------------- ------------- 5 to 35 20 to 65 50 to 100 80 to 170 0,34 to 2,4 1,4 to 4,5 3,5 to 6,9 5,5 to 11,7 Dark Gray Light Blue Light Gray Black 1E792327092 1E795327082 1E795427082 1P788827082 0.468 (11,9) 0.531 (13,5) 0.562 (14,2) 0.625 (15,9) 6.56 (167) 6.56 (167) 6.56 (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 as the flow is in the direction indicated by the arrow cast on the body. The design of the valve isolates diaphragm and pressure response chamber from the main flow stream. The higher pressure is measured inside the body through a registration hole on the inlet side of the body. Connect the low pressure line to the NPT connection in the spring case (see Figure 2). This connection is 1/8 NPT for NPS 1/4 and 1/2 (DN 15) bodies, and 1/2 NPT for NPS 3/4 and 1 (DN 20 and 25) bodies. Maximum operating temperatures for the Types 98LD and 98HD relief can be seen in the Specifications section. 4 ! Warning Personal injury or system damage may result if this relief valve is installed where service conditions could exceed the limits given on the Specifications section 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, or personal injury due to bursting of pressure-containing parts. System operation within the limits shown in the Specifications section does not eliminate the possibility of damage from external sources or debris in the Types 98LD and 98HD pipeline. The relief valve regulator should be inspected for damage regularly and after any overpressure condition. . Overpressure Protection ! Warning Overpressuring any portion of this equipment may result in equipment damage, leaks in the relief valve, or personal injury due to bursting of pressure-containing parts. The system should be inspected after any overpressure condition. Relief pressure ranges are from 2 to 200 psig (0,14 to 13,8 bar). The individual spring range of your relief valve is stamped on the nameplate. Maximum inlet pressures depend upon body materials and temperatures. See Specifications for the maximum inlet pressures and maximum spring case loading pressures for Types 98LD and 98HD relief valves. Relief Valve Outlet ! Warning If using a Type 98LD or 98HD Relief Valves 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 not to create a further hazard, and the vent opening should be protected against anything that could clog it. . If remote venting is necessary, install a remote vent line in the outlet connection of the relief valve. The vent line must have the largest practical diameter and be as short as possible with a minimum number of bends or elbows. Startup Note The Specifications section and Table 1 show the maximum inlet and the differential pressures for specific 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 and control line, inlet block valve and outlet block valve. Set pressure is adjusted by following the Adjustment procedure. Adjustment Each unit is factory set for the pressure setting specified on the order. The allowable spring range is stamped on the nameplate. If a pressure setting beyond the indicated range is required, substitute the appropriate spring. Be sure to label the relief valve to indicate the new pressure range. Always use a pressure gauge to monitor pressure when making adjustments. If the differential pressure needs to be increased, turn the handwheel (key 38, Figure 4 or 5) clockwise. Turn the handwheel counterclockwise to decrease the differential pressure. Shutdown Close the upstream shutoff valve and release all pressure from the relief valve. . Maintenance ! Warning To avoid personal injury and equipment damage, isolate the relief valve from all pressure. Cautiously release pressure from the relief 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 98LD and 98HD relief valves. These relief valves do not have to be removed from the pipeline 5 Types 98LD and 98HD to inspect internal parts. Suitable lubricants are indicated on the assembly drawings. Apply the lubricant as the relief valve is being reassembled. Refer to Figure 4 or 5 while servicing the relief valve. 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. Disassembly to Replace Diaphragm and Seats c. Repeat step b for each part, using an 800-grit or 1000-grit silicon carbide or aluminum oxide lapping compound. If the relief valve is leaking, the diaphragm may be ruptured or the seating surfaces nicked or scratched. Proceed as follows to replace or repair the diaphragm, orifice, and valve plug. . 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. 1. Release all spring compression by turning the adjusting screw (key 33) counterclockwise until it turns freely without resistance from the spring. . 5. Return the orifice and valve plug guide to the body. 2. Remove cap screws (key 16) and lift off the spring case (key 2), spring (key 11), upper spring seat (key 9), and diaphragm assembly. (The diaphragm assembly includes the locknut (key 26); pusher post (key 6); lockwasher (key 23); lower spring seat (key 8); diaphragm (key 12); gasket (key 10); and valve plug (key 4). In Type 98LD, there is also a diaphragm head (key 25). Type 98HD has another washer (key 7); and an O-ring (key 45)). Note Two diaphragms are used if the diaphragm material is metal or Fluorocarbon (FKM) except only for Type 98LD, NPS 1/4, 2 to 7 psi (0,14 to 0,48 bar) range which uses only one metal diaphragm. 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. . Note If damage to elastomer or metal seating surfaces is severe, replace the orifice and valve plug O-ring 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. Lapping 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. 6 6. To replace the valve plug O-ring (key 22), remove the screw (key 24) and O-ring retainer (key 21) from the plug. Remove and replace the O-ring. 7. Remove the locknut from the pusher post in order to separate the parts of the diaphragm assembly. Inspect and replace if necessary, the diaphragm, diaphragm gasket (key 19, Type 98LD), and pusher post gaskets (key 10, Type 98LD). Note These relief valves have either a metal or elastomer diaphragm. If a metal diaphragm is to be replaced with an elastomer diaphragm, or an elastomer diaphragm with a metal diaphragm, a new pusher post is required. 8. If the regulator unit has metal diaphragms: a) Find the pusher post (key 6) and place on a surface with the larger flat surface down and the thread stem up (metal diaphragm pusher post has a recessed diameter in the bottom surface). Then, find one smaller composition gasket (key 10) and fit it over the threaded end of the pusher post. Find and take one of the diaphragm heads and slip it over the threaded end of the pusher post with the chamfered side of the diaphragm head toward the gasket. Take a second gasket and place it over the threaded end of the pusher post on top of the diaphragm head. b) Replace one of the two large diaphragm gaskets (key 19) on the surface of the body that will support the diaphragms. There will be two diaphragms used per regulator, except for Type 98LD, NPS 1/4 with 2 to 7 psi (0,14 to 0,48 bar) outlet setting which uses only one metal Types 98LD and 98HD August 2007 SPRING (key 11) Type 98LD GASKETS (key 19) TYPE 98LD WITH 2 METAL DIAPHRAGMS (EXCEPT TYPE 98LD ONLY, NPS 1/4, 2 TO 7 PSI (0,14 to 0,48 PSI) RANGE SPRING (key 11) METAL DIAPHRAGMS (key 11) 44 41 38 34 33 35 36 39 32 40 43 42 37 METAL DIAPHRAGM (key 11) GASKETS (key 19) N.S. 1 N.S. 1 9 2 11 23 TYPE 98LD (NPS 1/4, 2 TO 7 PSI (0,14 to 0,48 PSI) RANGE) WITH METAL DIAPHRAGM 26 8 25 5 16 19 12 1 METAL 4 3 6 30A7031 A note: parts not shown: 13 and 18 never-seez mark owned by never-seez compound corp. 10 N.S. INLET PRESSURE OUTLET PRESSURE 1 Figure 4. Type 98LD Relief Valve Assembly Table 2. Torque Specifications body size, NPS (DN) spring case, Foot-pound (N•m) orifice, Foot-pound (N•m) 1/4 1/2 (15) 3/4 to 1 (20 to 25) 1-1/2 to 2 (40 to 50) 6 to 8 (8,1 to 10,8) 10 to 13 (13,6 to 17,6) 24 to 30 (32,5 to 40,7) 40 to 50 (54,2 to 67,8) 8 to 12 (10,8 to 16,3) 29 to 35 (39,3 to 47,5) 33 to 42 (44,7 to 56,9) 140 to 170 (190 to 231) diaphragm (the metal diaphragm is in between two diaphragm gaskets). Another diaphragm gasket is placed above the second 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 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. Disassembly to Replace Packing Leakage around the adjusting screw may be caused by worn packing in the packing box. To check the packing, follow the instructions below. 1. Before returning the upper spring case to the body, replace the packing (key 36) in the packing box (key 32). 2. Take out the machine screw (key 41) and lift off the washer (key 44) and handwheel (key 38). 3. Unscrew the packing box. Unscrew the packing nut (key 35) and take it and the packing follower (key 34) off of the adjusting screw (key 33). 4. Unscrew and pull the adjusting screw out through the bottom of the packing box. 5. Pull out the packing (key 36) and replace it. Replace the packing box gasket (key 37). 7 Type 9 Types 98LD and 98HD 6. Reassemble the packing box unit by returning the adjusting screw to the inside of the packing box. Slip the packing follower onto the adjusting screw and into the packing box. Screw on the packing nut. See Table 2 for torque specifications. 7. Put the packing box onto the spring case. Set the handwheel and washer on the adjusting screw and screw in the machine screw. 8. Set the spring and upper spring seat over the lower spring seat. Place the spring case on the body, tightening the cap screws finger-tight only. 9. To ensure proper slack in the diaphragm, apply some spring compression by turning the adjusting screw clockwise. Tighten 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 11-character part number of each required part as found in the following parts list. Separate kits containing all recommended spare parts are available. Parts List Note In this parts list, parts marked NACE are intended for corrosion-resistant service as detailed in the NACE International standard MR0175-92. . Key Description Part Number Parts kit (included are keys 3, 4, 10, 12, 19, 21, 22 and 24) Type 98HD Elastomer Trim NPS 1/4 body NPS 1/2 (DN 15) body NPS 3/4 and 1 (DN 20 and 25) bodies NPS 1-1/2 and 2 (DN 40 and 50) bodies Metal Trim NPS 1/4 body NPS 1/2 (DN 15) body NPS 3/4 and 1 (DN 20 and 25) body NPS 1-1/2 and 2 (DN 40 and 50) bodies *Recommended spare part. 8 R98HX000012 R98HX000022 R98HX000032 R98HX000072 R98HX000042 R98HX000052 R98HX000062 R98HX000082 Key Description Type 98LD Elastomer Trim NPS 1/4 body NPS 1/2 (DN 15) body NPS 3/4 and 1 (DN 20 and 25) bodies Metal Trim NPS 1/4 body NPS 1/2 (DN 15) body NPS 3/4 and 1 (DN 20 and 25) bodies 1 Body 2 Spring Case Type 98HD Steel NPS 1/4 body NPS 1/2 (DN 15) body NPS 3/4 and 1 (DN 20 and 25) bodies 316 SST NPS 1/4 body NPS 1/2 (DN 15) body NPS 3/4 and 1 (DN 20 and 25) bodies Type 98LD Steel NPS 1/4 body NPS 1/2 (DN 15) body NPS 3/4 and 1 (DN 20 and 25) bodies 316 SST NPS 1/4 body NPS 1/2 (DN 15 body) NPS 3/4 and 1 (DN 20 and 25) bodies 3* Orifice 4* Valve Plug 5 Valve Plug Guide 416 SST NPS 1/4 body NPS 1/2 (DN 15) body NPS 3/4 and 1 (DN 20 and 25) bodies 316 SST NPS 1/4 body (NACE) NPS 1/2 (DN 15) body (NACE) NPS 3/4 and 1 (DN 20 and 25) bodies (NACE) 6 Pusher Post 7 Washer (elastomer diaphragm only) 416 SST NPS 1/4 body NPS 1/2 (DN 15) body NPS 3/4 and 1 (DN 20 and 25) bodies 316 SST NPS 1/4 body (NACE) NPS 1/2 (DN 15) body (NACE) NPS 3/4 and 1 (DN 20 and 25) bodies (NACE) 8 Lower Spring Seat NPS 1/4 body, Aluminum NPS 1/2 (DN 15) body, Aluminum NPS 3/4 and 1 (DN 20 and 25) bodies, Aluminum 9 Upper Spring Seat, Steel NPS 1/4 body NPS 1/2 (DN 15) body NPS 3/4 and 1 (DN 20 and 25) bodies 10* Gasket, Composition (2 required for metal diaphragm) NPS 1/4 body NPS 1/2 (DN 15) body NPS 3/4 and 1 (DN 20 and 25) bodies 11 Relief Valve Spring Steel plate 12* Diaphragm NPS 1/4 body Type 98LD Neoprene (CR) Fluorocarbon (FKM) (2 required) 302 SST (2 required) Type 98HD Neoprene (CR) Fluorocarbon (FKM) (2 required) 302 SST (2 required) Part Number R98LX000012 R98LX000022 R98LX000032 R98LX000042 R98LX000052 R98LX000062 See following table 2L443222012 2L324122012 3E408822012 2L443233092 2L3241X0012 3E4088X00A2 2L443422012 3L324222012 4F432322012 2L4434X0012 3L3242X0012 4F4323X0022 See following table See following table 1L345835132 1L341635132 1L342935132 1L345835072 1L3416X0102 1L342935072 See following table 1L344736012 1L339836012 1L342836012 1L344736142 1L339835072 1L342836142 1L344609012 1L339708012 1L342708012 1B798525062 1D667125072 1E398725072 1L344804022 1L341104022 1L343404022 See following table 1L345302112 1L345302402 1L345436012 1L344902112 1L344902402 1L345036012 Types 98LD and 98HD 38 41 44 34 33 35 39 36 40 43 SPRING (key 11) 32 42 37 N.S. 1 N.S. 1 METAL DIAPHRAGMS (key 12) GASKETS (key 19) 9 TYPE 98HD WITH 2 METAL DIAPHRAGMS 2 11 23 26 45 8 16 12 5 C OMP 10 6 7 N.S. 1 22 4 3 LOCTITE 2 21 24 N.S. 1 1 NOTE: PARTS NOT SHOWN: 13 AND 18 1 NEVER-SEEZ MARK OWNED BY NEVER-SEEZ CORP. 2 LOCTITE GRADE A MARK OWNED BY LOCTITE CORP. 30A7035-A Figure 5. Type 98HD Relief Valve Assembly Key Description 12* Diaphragm (continued) NPS 1/2 (DN 15) body Type 98LD Neoprene (CR) Fluorocarbon (FKM) (2 required) 302 SST (2 required) Type 98HD Neoprene (CR) Fluorocarbon (FKM) (2 required) 302 SST (2 required) NPS 3/4 and 1 (DN 20 and 25) bodies Type 98LD Neoprene (CR) Fluorocarbon (FKM) (2 required) 302 SST (2 required) Type 98HD Neoprene (CR) Fluorocarbon (FKM) (2 required) 302 SST (2 required) 13 Nameplate Part Number 1L341302112 1L341302402 1L341436012 1L341202112 1L341202402 1L339936012 1L342302112 1L342302402 1L342236012 1L343302112 1L3433X0032 1L343236012 ----------- Key Description 16 Cap Screw, Steel plate Type 98LD NPS 1/4 body (10 required) NPS 1/2 (DN 15) body (10 required) NPS 3/4 and 1 (DN 20 and 25) bodies (12 required) Type 98HD NPS 1/4 body (6 required) NPS 1/2 (DN 15) body (8 required) NPS 3/4 and 1 (DN 20 and 25) bodies (8 required) 18 Drive Screw, SST (2 required) (not shown) 19* Diaphragm Gasket (Use with 302 SST diaphragm) Type 98LD NPS 1/4 body (2 required) NPS 1/2 (DN 15) body (2 required) NPS 3/4 and 1 (DN 20 and 25) bodies (2 required) Part Number 1A407824052 1A381624052 1A336924052 1A391724052 1A352624052 1A341824052 1A368228982 1E394004022 1E397004022 1E390404022 *Recommended spare part. 9 Types 98LD and 98HD Key Description 19* Diaphragm Gasket (continued) (Use with 302 SST diaphragm) Type 98HD NPS 1/4 body (2 required) NPS 1/2 (DN 15) body (2 required) NPS 3/4 and 1 (DN 20 and 25) bodies (2 required) 21 O-Ring Retainer (elastomer seat only) NPS 1/4 body 416 stainless steel 316 stainless steel (NACE) NPS 1/2 (DN 15) body 416 stainless steel 316 stainless steel (NACE) NPS 3/4 and 1 (DN 20 and 25) bodies 416 stainless steel 316 stainless steel (NACE) 22* O-Ring (elastomer seat only) NPS 1/4 body Nitrile (NBR) Fluorocarbon (FKM) NPS 1/2 (DN 15) body Nitrile (NBR) Fluorocarbon (FKM) NPS 3/4 and 1 (DN 20 and 25) bodies Nitrile (NBR) Fluorocarbon (FKM) 23 Lockwasher, Steel NPS 1/4 and 1/2 (DN 15) bodies NPS 3/4 and 1 (DN 20 and 25) bodies 24 Machine Screw, Stainless steel (Elastomer seat only) NPS 1/4 body (NACE) NPS 1/2 (DN 15) body (NACE) NPS 3/4 and 1 (DN 20 and 25) bodies NPS 3/4 and 1 (DN 20 and 25) bodies (NACE) 25 Diaphragm Head Type 98LD, Steel zinc-plated NPS 1/4 body NPS 1/2 (DN 15) body NPS 3/4 and 1 (DN 20 and 25) bodies 26 Locknut, Steel zinc-plated NPS 1/4 and 1/2 (DN 15) bodies NPS 3/4 and 1 (DN 20 and 25) bodies 32 Packing Box, Steel NPS 1/4 body NPS 1/2, 3/4 and 1 (DN 15, 20 and 25) bodies NPS 1-1/2 and 2 (DN 40 and 50) bodies, Type 98H only 33 Adjusting Screw, SST NPS 1/4 body NPS 1/2 (DN 15) body NPS 3/4 and 1 (DN 20 and 25) bodies NPS 1-1/2 and 2 (DN 40 and 50) bodies, Type 98H only *Recommended spare part. 10 Part Number 1E393104022 1E397004022 1E399304622 1L346035132 1L346035072 1L341535232 1L341535072 1L343035132 1L343035072 1C853806992 1C8538X0052 1D288806992 1N530106382 1C782106992 1C7821X0072 1C225628982 1H624328992 1L346238992 1J4159X0012 1L343538992 1L3435X0012 1L345525072 1L339625072 1L342125072 1L872324122 1L872224122 1L449624092 1L324024092 11A9809X022 1L449535232 1L449735232 1L324435232 21A9808X012 Key Description 34 Packing Follower NPS 1/4 body, 316 SST NPS 1/2, 3/4, and 1 (DN 15, 20, and 25) bodies 35 Packing Box Nut Steel zinc-plated 36* Packing, PTFE (3 required) NPS 1/4 body NPS 1/2, 3/4, 1, 1-1/2, and 2 (DN 15, 20, 25, 40, and 50) bodies 37* Packing Box Gasket, Steel/composition NPS 1/4 body NPS 1/2, 3/4, 1 ,1-1/2, and 2 (DN 15, 20, 25, 40, and 50) bodies 38 Handwheel NPS 1/4 body NPS 1/2, 3/4, and 1 (DN 15, 20, and 25) bodies NPS 1-1/2 and 2 (DN 40 and 50) bodies 39* Female Adaptor, PTFE NPS 1/4 body NPS 1/2, 3/4, 1, 1-1/2, and 2 (DN 15, 20, 25, 40, and 50) bodies 40* Male Adaptor, PTFE NPS 1/4 body NPS 1/2, 3/4, 1, 1-1/2, and 2 (DN 15, 20, 25, 40, and 50) bodies 41 Machine Screw, steel plate NPS 1/4 body NPS 1/2, 3/4 and 1 (DN 15, 20 and 25) bodies NPS 1-1/2 and 2-inch (DN 40 and 50) bodies 42 Spring, 316 stainless steel 43 Washer, 316 stainless steel NPS 1/4 body NPS 1/2, 3/4, and 1 (DN 15, 20, and 25) bodies 44 Washer, Steel NPS 1/4 body NPS 1/2, 3/4, and 1 (DN 15, 20, and 25) bodies NPS 1-1/2 and 2 (DN 40 and 50) bodies, Type 98H only 45* O-Ring, Nitrile (NBR) (Use with elastomer diaphragm) NPS 1/4 and 1/2 (DN 15) bodies NPS 3/4 and 1 (DN 20 and 25) bodies NPS 1-1/2 and 2 (DN 40 and 50) bodies Type 98H only 51 NACE Tag 52 Tag Wire (NACE) Part Number 1K885035072 1K884924092 0P077624102 1C752601012 1H784301012 1B487099202 1N499199202 1L217544992 1L369644992 1J410819042 1F124401012 1H784401012 1F124801012 1H784201012 1A340828992 16A5763X012 1A680324122 1F125437012 1F125236042 1H981836042 1A329128982 1A352332992 1E794128992 1D687506992 1E547706992 1C782206992 19A6034X012 1U7581X0022 Types 98LD and 98HD Key 1 Regulator Body, NPT type 98hd body material type 98LD body material body size, NPS (DN) Cast Iron Steel Stainless Steel Cast Iron Steel Stainless Steel 1/4 1L346419012 1L372122012 1L372133092 1L346519012 1L372322012 1L372333092 1/2 (15) 2L339519012 2L368722012 2L368733092 2L339219012 2L368922012 2L368933092 3/4 (20) 2L342519012 2L373422012 2L373433092 2L341919012 2L318222012 2L318233092 1 (25) 2L342619012 2L373522012 2L373533092 2L342019012 2L318322012 2L318333092 1-1/2 (40) 3P786819012 3P786822012 3P786833092 ---- ---- ---- 2 (50) 3P786719012 3P786722012 3P786733092 ---- ---- ---- Key 1 Regulator Body, ASME CL150 and CL300 Flanges type 98hd body material body size, NPS (DN) Steel type 98ld body material Stainless Steel Steel Stainless Steel CL150 RF CL300 RF CL150 RF CL300 RF CL150 RF CL300 RF CL150 RF CL300 RF 1/2 (15) 1V5178X0012 20A4987X0A2 1V5178X0022 20A4987X012 25A9930X022 20A4701X012 25A9930X012 20A4701X022 3/4 (20) 15A6098X022 23B9543X022 15A6098X012 23B9543X012 2V4264X0022 14B2317X012 2V4264X0012 14B2317X022 1 (25) 2V3805X0012 2U8048X0012 2V3805X00B2 2U8048X0022 2V3641X0022 2U8047X0012 2V3641X0012 2U8047X0062 1-1/2 (40) 21B0804X012 1V4541X0012 21B0804X022 1V4541X0022 ---- ---- ---- ---- 2 (50) 10A0192X012 10A4986X012 10A0192X022 10A4986X052 ---- ---- ---- ---- Key 1 Regulator Body, SWE type 98hd body material type 98ld body material body size, NPS (DN) 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 3V4542X0022 ---- ---- 2 (50) 30A0191X012 30A0191X032 ---- ---- Key 3* Orifice elastomer seat body size, NPS (DN) metal to metal NACE For Other Than Sour Gas Corrosion Resistance Applications 416 SST 316 SST 416 SST 316 SST 1/4 1/2 (15) 3/4, 1 (20, 25) 1E391646172 1E395046172 1E398046172 1E391635072 1E395035072 1E398035072 1L345935072 1L341735072 1L343135072 1L345935132 1L341735132 1L343135132 1L345935072 1L341735072 1L343135072 Type 98HD only 1-1/2, 2 (40, 50) 2P787046172 2P787035072 1P787135072 1P787135132 1P787135072 Key 4* Valve Plug elastomer seat body size, NPS (DN) metal to metal NACE For Other Than Sour Gas Corrosion Resistance Applications 416 SST 316 SST 416 SST 316 SST 1/4 1/2 (15) 3/4, 1 (20, 25) 1L345246172 1L344146172 1L343746172 1L345235072 1L344135162 1L343735162 1L345135072 1L344335072 1L343635072 1L345135132 1L344335132 1L343635132 1L345135072 1L344335072 1L343635072 Type 98HD only 1-1/2, 2 (40, 50) 1P787246172 1P787235072 1P787335072 1P787346172 1P787335072 *Recommended spare part. 11 Types 98LD and 98HD Key 6 Pusher Post elastomer seat metal to metal body size, NPS (DN) For Other Than Sour Gas Corrosion Resistance Applications NACE 416 SST 316 SST 416 SST 316 SST 1/4 1/2 (15) 3/4, 1 (20, 25) 1L345735132 1L344535132 1L343935132 1L345735072 1L344535072 1L343935072 1L345635072 1L344235072 1L343835072 1L345635132 1L344235132 1L343835132 1L345635072 1L344235072 1L343835072 Type 98HD only 1-1/2, 2 (40, 50) 1P788335132 1P788335072 1P788435072 1P788435132 1P788435072 Key 11 Relief Valve Spring body size, NPS (DN) Type 98ld range TYPE 98hd range color code part number 1,0 to 2,4 1,7 to 5,2 4,8 to 9,7 9,0 to 13,8 Yellow Green Red Blue 1E392527022 1E392627012 1E392727142 1L346127142 15 to 35 25 to 75 70 to 140 130 to 200 1,0 to 2,4 1,7 to 5,2 4,8 to 9,7 9,0 to 13,8 Yellow Green Red Blue 1E395627022 1D7455T0012 1E395727192 1L380027142 0,14 to 0,48 0,41 to 0,97 0,83 to 1,7 1,4 to 2,6 15 to 35 25 to 75 70 to 140 130 to 200 1,0 to 2,4 1,7 to 5,2 4,8 to 9,7 9,0 to 13,8 Yellow Green Red Blue 1E398927022 1E399027142 1E399127162 1L380127092 ---------- 5 to 35 20 to 65 50 to 100 80 to 170 0,34 to 2,4 1,4 to 4,5 3,4 to 6,9 5,5 to 11,7 Dark Gray Light Blue Lighy Gray Black 1E792327092 1E795327082 1E794527082 1P788827082 Psi bar Psi bar 1/4 2 to 7 6 to 14 12 to 25 20 to 38 0,14 to 0,48 0,41 to 0,97 0,83 to 1,7 1,4to 2,6 15 to 35 25 to 75 70 to 140 130 to 200 1/2 (15) 2 to 7 6 to 14 12 to 25 20 to 38 0,14 to 0,48 0,41 to 0,97 0,83 to 1,7 1,4 to 2,6 3/4 and 1 (20 and 25) 2 to 7 6 to 14 12 to 25 20 to 38 1-1/2 and 2 (40 and 50) ---------- Industrial Regulators Natural Gas Technologies TESCOM Emerson Process Management Regulator Technologies, Inc. Emerson Process Management Regulator Technologies, Inc. Emerson Process Management Tescom Corporation USA - Headquarters McKinney, Texas 75069-1872 USA Tel: 1-800-558-5853 Outside U.S. 1-972-548-3574 USA - Headquarters McKinney, Texas 75069-1872 USA Tel: 1-800-558-5853 Outside U.S. 1-972-548-3574 USA - Headquarters Elk River, Minnesota 55330-2445 USA Tel: 1-763-241-3238 Asia-Pacific Shanghai, China 201206 Tel: +86 21 2892 9000 Asia-Pacific Singapore, Singapore 128461 Tel: +65 6777 8211 Europe Bologna, Italy 40013 Tel: +39 051 4190611 Europe Bologna, Italy 40013 Tel: +39 051 4190611 Gallardon, France 28320 Tel: +33 (0)2 37 33 47 00 Middle East and Africa Dubai, United Arab Emirates Tel: +971 4811 8100 Europe Selmsdorf, Germany 23923 Tel: +49 (0) 38823 31 0 For further information visit www.emersonprocess.com/regulators 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., 1962, 2009; All Rights Reserved
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