Emerson MR98 Bedienerhandbuch

MR98 SeriesD103588X012Instruction ManualJanuary 2015www.fisherregulators.comMR98 Series Backpressure Regulators, Relief and Differential Relief Valves

MR98 Series10Figure 3. Installation Schematics for Types MR98LD and MR98HD Relief ValvesRELIEF OUTLET AND OPTIONAL PIPING TO SYSTEMLOADING PRESSUREUNC

MR98 Series11InstallationWARNING!Personal injury or system damage may result if this backpressure regulator, relief or differential relief valve is in

MR98 Series12BODY SIZE SPRING CASE BOLTS(1)ORIFICE VALVE PLUG GUIDE BOTTOM PLUGIn. DN Ft-Lbs  Ft-Lbs  Ft-Lbs  Ft-Lbs 1/41/23/4 and 11-1/2

MR98 Series13Types MR98L, MR98H and MR98HH 1. Loosen the jam nut (key 17, Figures 4, 6, 7 and 10).2. To increase the set pressure or pressure settin

MR98 Series144. Slowly open the downstream vent valve to vent downstream pressure. 5. Leave the downstream vent valve open to vent inlet pressure an

MR98 Series151. Shut down the relief valve or backpressure regulator. Refer to Shutdown section for the proper procedure.2. Retighten the cap screw

MR98 Series1610. Slip the lower spring seat (key 8) and lock washer (key 28) back onto the pusher post (key 10). Lubricate the threads of the pusher

MR98 Series17Parts ListKey Description Part Number Parts Kit (included are keys 3, 4, 12, 29, 59 and 63) Types MR98H, MR98HH and MR98HD Wit

MR98 Series18Key Description Part Number7 Valve Plug Guide (continued) 1-1/2 and 2 in. / DN 40 and 50 Body Sizes 416 Stainless steel GF

MR98 Series19Key Description Part Number15 Adjusting Screw, NACE(1) Square Head Adjustment 1/4 NPT Body Size GF05533X012 1/2 in. /

MR98 Series2This section lists the specications for the MR98 Series regulators. Factory specication such as type, maximum inlet pressur

MR98 Series2021 Diaphragm Head (continued) 1/2 in. / DN 15 Body Size Steel, NACE(1) 1L339625072 Stainless steel, NACE 1L3396X0012 3

MR98 Series2132 Stufng Box (continued) Handwheel adjustment (continued) Type MR98HHD 1/4 NPT Body Size ERAA02699A0 1/2 in. /

MR98 Series2241 Machine Screw (continued) Handwheel adjustment with Stainless steel Trim 1/4 NPT Body Size ERAA01639A1 1/2 in. / DN 15

MR98 Series23*Recommended Spare PartMonel® is a mark owned by Special Metals Corporation.Hastelloy® C is a mark owned by Haynes International, Inc.Key

MR98 Series24BODY SIZEEND CONNECTION STYLEBODY MATERIALGray Cast Iron WCC Steel LCC SteelCF8M Stainless Steel(1)CF3M Stainless Steel(1)Monel®(1)Hast

MR98 Series25Key 1, Types MR98H, MR98HD, MR98HH and MR98HHD Body Part Numbers (continued)BODY SIZEEND CONNECTION STYLEBODY MATERIALGray Cast Iron(2)W

MR98 Series26BODY SIZEEND CONNECTION STYLEBODY MATERIALGray Cast IronWCC Steel LCC SteelCF8M Stainless Steel(1)CF3MStainless Steel(1)Monel®(1)Hastel

MR98 Series27Key 4*, Valve Plug, Metal SeatBODY SIZEBODY STYLE VALVE PLUG MATERIALIn. DN  (1)(1)Hastelloy

MR98 Series28Key 4*, Valve Plug, Composition SeatBODY SIZEBODY STYLE VALVE PLUG MATERIALIn. DN  (1)(2)Hastelloy®

MR98 Series29Figure 4. Type MR98L Assembly 21711502885843121122911318641815L27L25L222L224 T3 L29 L263L1L45925COMPOSITE SEAT OPTIONSEALED ADJUSTING SCR

MR98 Series3WARNING!Failure to follow these instructions or to properly install and maintain this equipment could result in an explosion, 

MR98 Series30Figure 5. Type MR98LD Assembly 1818 64134438344042322312881258436L37L25L24135394311211299L237 L145 L133 L23 L2592524TCOMPOSITE SEAT OPTIO

MR98 Series31Figure 6. Type MR98H Assembly with 1/4 NPT to 1 in. / DN 25 Body Sizes 2175019121318641811318129281258415L222L2592524T9 L27 L23 L25 L263L

MR98 Series32Figure 7. Type MR98H Assembly with 1-1/2 to 2 in. / DN 40 to 50 Body SizesAPPLY(1):T = THREAD LOCKERL1 = GENERAL PURPOSE PTFE OR LITHIUM

MR98 Series33Figure 8. Type MR98HD Assembly with 1/4 NPT to 1 in. / DN 25 Body SizesAPPLY(1):T = THREAD LOCKERL1 = GENERAL PURPOSE PTFE OR LITHIUM GRE

MR98 Series3452453 L1CONTROL LINE OPTION592524 TCOMPOSITE SEAT OPTION29191912METAL DIAPHRAGM OPTION131818644112810212831112324335384144343940429 L2L23

MR98 Series35Figure 10. Type MR98HH Assembly with 1/4 NPT to 1 in. / DN 25 Body SizesAPPLY(1):T = THREAD LOCKERL1 = GENERAL PURPOSE PTFE OR LITHIUM GR

MR98 Series©Emerson Process Management Regulator Technologies, Inc., 2013, 2015; All Rights ReservedThe Emerson logo is a trademark and service mark o

MR98 Series4SPRINGSPRINGMETAL DIAPHRAGMSMETAL DIAPHRAGMGASKETGASKETFOR TYPE MR98H WITH TWO METAL DIAPHRAGMS (ALSO TYPICAL OF TYPES MR98HH AND MR98L EX

MR98 Series5The differential relief valve responds to both controlled pressure and loading pressure and opens or closes as these pressures change. If

MR98 Series6BODY SIZE BODY CONSTRUCTION END CONNECTION STYLEBODY MATERIALGray Cast IronWCC or LCC SteelCF8M Stainless Steel(1)CF3M Stainless Steel(1)M

MR98 Series7Table 2. Types MR98H, MR98HD, MR98HH and MR98HHD Regulators Body ConstructionsBODY SIZE BODY CONSTRUCTION END CONNECTION STYLEBODY MATERIA

MR98 Series8Table 2. Types MR98H, MR98HD, MR98HH and MR98HHD Regulators Body Constructions (continued)BODY SIZE BODY CONSTRUCTION END CONNECTION STYLE

MR98 Series9Table 3. MR98 Series Body Sizes, Pressure Ranges and Spring InformationTYPEBODY SIZECONTROL PRESSURE RANGE(1)SPRING WIRE DIAMETERSPRING F