Emerson MR98 Installation Guide
Contents
1. EMERSON2. O 3 to 25 9 150 to 375 1 All springs may be backed off to 0 bar 0 psig However highest capacities and best performances are obtained by using these springs in their recommended ranges Table 2 Maximum Cold Working Pressures of Body Size and Materials MAXIMUM MAXIMUM OUTLET MAXIMUM SPRING REGULATOR BODY SIZE BODY AND SPRING CASE MATERIALS INLET PRESSURE PRESSURE CASE PRESSURE bar psg var psio bar psio a ST aua o ma o su IZes MROBLD Steel Stainless Steel Monel HasteloyC uren ora Gray Cast Iron M Steel Stainless Steel Monel Hastelloy C Aluminum Bronze MR98HH 1 The pressure temperature limits in this Installation Guide and any applicable standard limitation should not be exceeded 2 Temperature trim material and or the body end connection may decrease these maximum pressures 3 Maximum inlet pressure equals set pressure plus build up the limits given in the Specifications section Overpressure Protection or where conditions exceed any ratings of the adjacent piping or piping connections Maximum inlet pressure depend upon body materials and temperatures See Specifications section or the maximum inlet pressure of the valve and the maximum spring case loading pressures stamped on the nameplate of Types MR98LD MR98HD and MR98HHD The valve should be inspected for damage after any overpressure condition Fisher relief valve or backpressure regulators are NOT ASME saf
3. SOX KR ET SS SULAR SSSA T SEALED ADJUSTING SCREW OPTION TEE HANDLE OPTION METAL DIAPHRAGM OPTION CONTROL LINE OPTION GF04917 C APPLY T THREAD LOCKER L1 GENERAL PURPOSE PTFE OR LITHIUM GREASE FOR O RINGS L2 ANTI SEIZE COMPOUND L4 GRAPHITE SEALANT FOR GRAPHITE RING COMPOSITE SEAT OPTION Figure 1 Type MR98L Assembly Parts List Key Description Key Description 1 Body 33 Adjusting Screw 2 Spring Case 34 Packing Follower 3 Orifice 35 Stuffing Box Nut 4 Valve Plug 36 Packing V Ring 3 required 5 Bottom Plug 37 Stuff Box Gasket 7 Valve Plug Guide 38 Handwheel Handle 8 Lower Spring Seat 39 Internal Adaptor 9 Upper Spring Seat 40 External Adaptor 10 Pusher Post 41 Machine Screw 11 Control Spring 41 Jam Nut 12 Diaphragm 2 required for metal FKM and EPDM diaphragms 42 Spring 13 Nameplate 43 Washer 14 Diaphragm Protector not shown 44 Washer 15 Adjusting Screw 45 O ring 16 Cap Screws 47 NACE Tag not shown Types MR98L and MR98LD 48 Tag Wire not shown 1 4 NPT DN 15 1 2 inch bodies 10 required 49 Lockwasher not shown DN 20 and 25 3 4 and 1 inch bodies 12 required 50 Sealing Washer Types MR98H MR98HD MR98HH and MR98HHD 51 Vent not shown 1 4 NPT body 6 required 52 Plug DN 15 to 50 1 2 to 2 inch bodies 8 required 53 Valve Plug O ring 17 Jam Nut 57 Jam Nut not shown 18 Drive Screw 4 required 58 Washer 19 Diaphragm Gasket 2 required for pres
4. 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 Personal injury equipment damage or leakage due to escaping fluid or bursting of pressure containing parts may result if this relief valve or backpressure regulator is overpressured or is installed where service conditions could exceed 1 The pressure temperature limits in this Installation Guide and any applicable standard or code limitation should not be exceeded 2 The pressure limits given are based on the body size and body materials only Actual pressure limits of the assembled regulator may decrease and vary depending on the temperature body end connection diaphragm seat and or trim material of the regulator 3 Fluorocarbon FKM is limited to 93 C 200 F hot water www fisherregulators com Ss SS EMERSON D103588X014 MR98 Series Table 1 MR98 Series Body Sizes and Pressure Ranges BODY SIZE CONTROL PRESSURE RANGE i anc erg MR98L and MR98LD 15 20 and 25 1 4 NPT 1 2 3 4 and 1 0 83 to 1 7 12 to 25 1 4 to 2 6 20 to 38 1 0 to 2 4 15 to 35 1 7 to 5 2 25 to 75 15 20 and 25 1 4 NPT 1 2 3 4 and 1 4 8 to 9 7 70 to 140 9 0 to 13 8 130 to 200 MR98H and MR98HD 1 4 to 4 5 20 to 65 40 and 50 1 1 2 and 2 3 4 to 6 9 50 to 100 D 75 to 170 MR98HH and MR98HHD 15 20 and 25 1 4 NPT 1 2 3 4 and 1 103t02359
5. Installation Guide English April 2014 Introduction This Installation Guide provides instructions for installation startup and adjustment To receive a copy of the instruction manual contact your local Sales Office or view a copy at www fisherregulators com For further information refer to MR98 Series Backpressure Regulators Relief and Differential Relief valves Instruction Manual D103588X012 P E D Category This product may be used as a safety accessory with pressure equipment in the following Pressure Equipment Directive 97 23 EC categories It may also be used outside of the Pressure Equipment Directive using Sound Engineering Practice SEP per table below TYPE PRODUCT SIZE SIZE BODY MATERIAL MATERIAL CATEGORY 1 4 NPT DN 15 to 25 All available 1 2 to 1 inch materials MR98H DN 40 and 50 Steel and MR98HD 1 1 2 and 2 inch Stainless Steel Specifications Available Constructions Type MR 98L Direct operated low pressure backpressure regulator relief valve with 0 14 to 2 6 bar 2 to 38 psig set pressure range Type MR98H Direct operated high pressure backpressure regulator relief valve with 0 34 to 13 8 bar 5 to 200 psig set pressure range Type MR98HH Direct operated high pressure backpressure relief valve with 10 3 to 25 9 bar 150 to 375 psig set pressure range Type MR98LD Pressure loaded low pressure differential pressure relief valve with 0 14 to 2 6 bar 2 to 38 psi set pressure range T
6. URPOSE PTFE OR LITHIUM GREASE FOR O RINGS L2 ANTI SEIZE COMPOUND L3 SILICONE GREASE L4 GRAPHITE SEALANT FOR GRAPHITE RING 1 Lubricants and sealants must be selected such that they meet the temperature requirements 2 Apply L2 anti seize compound on key 16 for Stainless Steel bolts 3 Apply L4 graphite sealant instead of L1 general purpose PTFE or lithium grease on key 63 for graphite ring ee DETAIL B X Z A IA Figure 2 Type MR98HD Assembly with 1 4 NPT DN 15 to 25 1 2 to 1 inch Bodies Industrial Regulators Emerson Process Management Regulator Technologies Inc USA Headquarters McKinney Texas 75070 USA Tel 1 800 558 5853 Outside U S 1 972 548 3574 Asia Pacific Shanghai 201206 China Tel 86 21 2892 9000 Europe Bologna 40013 Italy Tel 39 051 419 0611 Middle East and Africa Dubai United Arab Emirates Tel 971 4811 8100 Natural Gas Technologies Emerson Process Management Regulator Technologies Inc USA Headquarters McKinney Texas 75070 USA Tel 1 800 558 5853 Outside U S 1 972 548 3574 Asia Pacific Singapore 128461 Singapore Tel 65 6770 8337 Europe Bologna 40013 Italy Tel 39 051 419 0611 Chartres 28008 France Tel 33 2 37 33 47 00 Middle East and Africa Dubai United Arab Emirates Tel 971 4811 8100 For further information visit www fisherregulators com TESCOM Emerson Process Management Tescom Corporation USA Headquarter
7. ety relief valves To avoid such injury or damage provide pressure relieving or pressure limiting devices as required by the appropriate code regulation or standard to prevent service conditions from exceeding limits Additionally physical damage to the relief valve or backpressure regulator could result Startup in personal injury and property damage due to escaping fluid To avoid such injury and damage The relief valve or backpressure regulator is factory set at install the relief valve or backpressure regulator approximately the midpoint of the spring range or the pressure in a safe location requested so an initial adjustment may be required to give the desired results With proper installation completed and Clean out all pipelines before installation of the relief valve or relief valves properly adjusted slowly open the upstream and backpressure regulator and check to be sure the relief valve or downstream shutoff valves if applicable backpressure regulator has not been damaged or has collected foreign material during shipping For NPT bodies apply pipe Adjustment compound to the external pipe threads For flanged bodies use suitable line gaskets and approved piping and bolting practices To change the control pressure remove closing cap or loosen Install the relief valve or backpressure regulator in any position the jam nut and turn the adjusting screw clockwise to increase desired unless otherwise specified but be sure flow thr
8. ough the control pressure or counterclockwise to decrease pressure body is in the direction indicated by the arrow on the body Monitor the control pressure with a test gauge during the adjustment Replace closing cap or tighten the jam nut to Note maintain the desired setting It is important that the relief valve or backpressure regulator be installed so that the Taking Out of Service Shutdown vent hole in the spring case is unobstructed at all times For outdoor installations the A N WARNING relief valve or backpressure regulator should be located away from vehicular traffic and To avoid personal injury resulting from sudden positioned so that water ice and other foreign release of pressure isolate the relief valve or materials cannot enter the spring case through backpressure regulator from all pressure before the vent Avoid placing the relief valve or attempting disassembly backpressure regulator beneath eaves or downspouts and be sure it is above the probable snow level Monel is a mark owned by Special Metals Corporation Hastelloy C is a mark owned by Haynes International Inc L2 115 2 BENE JA Kz 12 Z iip A ON gt i 11 Gn AOS OY y y 42 Je Z TONO SS O ma a P o va NNN VA ANY SW SAZ a MR98 Series SS SS z ET Lb FIE TO y 3 L2 L1 L215 63 OR FAA Drz EAO Z ATA
9. psig Temperature Capabilities Elastomer Parts Nitrile NBR and Neoprene CR 40 to 82 C 40 to 180 F Fluorocarbon FKM 18 to 149 C 0 to 300 F Ethylenepropylene EPDM 7 to 135 C 20 to 275 F Perfluoroelastomer FFKM 18 to 218 C 0 to 425 F Polytetrafluoroethylene PTFE Diaphragm protector 40 to 204 C 40 to 400 F Body Materials Gray Cast Iron 29 to 208 C 20 to 406 F WCC Steel 29 to 232 C 20 to 450 F LCC Steel 40 to 232 C 40 to 450 F Stainless Steel Monel and Hastelloy C 40 to 232 C 40 to 450 F Pressure Registration Internal or External Shutoff Classification Per ANSI FCI 70 3 2004 Metal Seats Class IV PTFE Class IV Elastomer Seats Class VI or better Installation Only qualified personnel shall install or service a relief valve or backpressure regulator Relief valve or backpressure regulator should be installed operated and maintained in accordance with international and applicable codes and regulations and Emerson Process Management Regulator Technologies Inc instructions If using a relief valve or backpressure regulator on a hazardous or flammable fluid service personal injury and property damage could occur due to fire or explosion of vented fluid that may have accumulated To prevent such injury or damage provide piping or tubing to vent the fluid to a safe well ventilated area or containment vessel Also when venting a hazardous fluid
10. s Elk River Minnesota 55330 2445 USA Tels 1 763 241 3238 1 800 447 1250 Europe Selmsdorf 23923 Germany Tel 49 38823 31 287 Asia Pacific Shanghai 201206 China Tel 86 21 2892 9499 The distinctive diamond shape cast into every spring case uniquely identifies the regulator as part of the Fisher brand and assures you of the highest quality engineering durability performance and support 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 International LLC 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 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 Technologies Inc product remains solely with the purchaser Emerson Process Management Regulator Technologies Inc 2014 All Rights Reserved OQR Ss
11. sure loaded spring case 59 O ring 21 Diaphragm Head 59 L ring 22 Adjusting Screw Assembly 62 Adaptor not shown 23 Handwheel not shown 63 Bottom Plug Seal 24 Machine Screw 64 Flow Arrow 25 O ring Retainer 65 Pipe Plug not shown 25 Seat Retainer 66 Pressure Gauge not shown 28 Lockwasher 68 Restriction not shown 29 Gasket 69 ATEX Tag not shown 31 Locknut 70 PED Tag not shown 32 Stuffing Box Recommended Spare Part 1 Lubricants and sealants must be selected such that they meet the temperature requirements 2 Apply L2 anti seize compound on key 16 for Stainless Steel bolts 3 Apply L4 graphite sealant instead of L1 general purpose PTFE or lithium grease on key 63 for graphite ring 4 Only one metal diaphragm is needed for Types MR98L and MRY8LD with 1 4 NPT body size and 0 14 to 0 48 bar 2 to 7 psi spring range MR98 Series 44 34 39 42 32 l L2 33 2 31 28 L224 16 l L2 7 4 L1 OR 63 L4 GF04920 C APPLY T THREAD LOCKER 41 mN 35 Sg HIT ZA ol ee oa ats SNL VAS AS T 40 SS L1 43 CONTROL LINE OPTION COMPOSITE SEAT OPTION 37 L4 9 L2 C A e coo 7 D 2 TEZ 1 0Y 12 Kv LOE SCV NS a tb NNN WSYEREVARSSS SEE DETAIL B SEE DETAILA 12 METAL DIAPHRAGM OPTION NS DETAIL A L1 GENERAL P
12. ype MR98HD Pressure loaded high pressure differential pressure relief valve with 0 34 to 13 8 bar 5 to 200 psi set pressure range Type MR98HHD Pressure operated high pressure backpressure relief valve with 10 3 to 25 9 bar 150 to 375 psi differential set pressure range Body and Orifice Sizes 1 4 NPT body 7 22 mm 0 284 inch orifice DN 15 1 2 inch body 10 56 mm 0 416 inch orifice DN 20 and 25 3 4 and 1 inch bodies 16 02 mm 0 631 inch orifice DN 40 and 50 1 1 2 and 2 inch bodies 29 mm 1 142 inch orifice End Connection Styles NPT SWE and Welded and Integral CL150 RF CL300 RF and PN 16 25 40 RF all sizes are fabricated with slip on flanges for welded end connections and are EN flanged 356 mm face to face 14 inch face to face Maximum Inlet and Outlet Pressure Rating See Table 2 Maximum Cold Working Pressures of Body Size and Materials See Table 2 Set Pressure Ranges See Table 1 Monel is a mark owned by Special Metals Corporation Hastelloy C is a mark owned by Haynes International Inc MR98 Series Maximum Spring Case Loading Pressure for Types MR98LD MR98HD and MR98HHD Spring Setting Plus Loading Pressure Type MR98LD Spring Case Gray Cast Iron 3 4 bar 50 psig Steel or Stainless Steel 8 6 bar 125 psig Type MR98HD Spring Case Gray Cast Iron 17 2 bar 250 psig Steel or Stainless Steel 20 7 bar 300 psig Type MR98HHD Spring Case Steel or Stainless Steel 20 7 bar 300
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