Emerson Fisher MR95 Series Instruction Manual
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Emerson Fisher MR95 Series Instruction Manual

Emerson Fisher MR95 Series Instruction Manual

Pressure regulators
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Instruction Manual
November 2013
MR95 Series Pressure Regulators
P1757
TyPE MR95L
TyPE MR95L
TyPE MR95L
TyPE MR95L
TyPE MR95L
Figure 1. Typical MR95 Series Pressure Regulators
www.fisherregulators.com
MR95 Series
P1753
TyPE MR95H
TyPE MR95H

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  • Page 1 MR95 Series Instruction Manual November 2013 MR95 Series Pressure Regulators P1757 TyPE MR95L TyPE MR95L TyPE MR95L TyPE MR95L TyPE MR95L P1753 TyPE MR95H TyPE MR95H PRESSuRE REDuciNG REGuLaToRS Figure 1. Typical MR95 Series Pressure Regulators www.fisherregulators.com...
  • Page 2 MR95 Series Specifications This section lists the specifications for the MR95 Series regulators. Factory specification such as type, maximum inlet pressure, maximum temperature, maximum outlet pressure, spring range, orifice size, and seat material are stamped on the nameplate fastened on the regulator at the factory. Available Constructions Maximum Temperature Ranges of Diaphragm and Type MR95L: Low pressure regulator for 2 to...
  • Page 3 Outlet pressure range is from with federal, state, and local codes, 2 to 30 psig / 0.14 and 2.1 bar with three different rules and regulations, and Emerson springs available. Body sizes are available from Process Management Regulator 1/4 NPT through 1-inch / DN 25 with a variety of end Technologies, Inc.
  • Page 4 MR95 Series aDJuSTiNG ScREW coNTRoL SPRiNG DiaPHRaGM PiToT TuBE STEM ORIFICE VaLVE PLuG coNTRoL LiNE TaP FRONT AND INTERNAL VIEW OF BACK VIEW OF SIDE AND INTERNAL VIEW OF TyPE MR95H WiTH iNTERNaL 1/2 iNcH / DN 15 TyPE MR95H 3/4 TO 2-INCH / DN 20 TO 50 PRESSuRE REGiSTRaTioN WiTH EXTERNaL...
  • Page 5 MR95 Series HaNDWHEEL Type 95HD October 2006 Type 95HD Differential Pressure Reducing Regulator PRESSuRE a* (SPRiNG caSE LoaDiNG coNTRoL SPRiNG PRESSURE) DiaPHRaGM PRESSuRE a + SPRiNG SETTiNG = PiToT TuBE PRESSuRE B STEM PRESSuRE B (ouTLET PRESSURE) ORIFICE coNTRoL LiNE TaP VaLVE PLuG FRONT AND INTERNAL VIEW OF BACK VIEW OF...
  • Page 6 MR95 Series Table 1. Types MR95L and MR95LD Regulators Body Constructions BoDy MaTERiaLS BoDy SizE BoDy coNSTRucTioN END coNNEcTioN 1/4 NPT Without Control Line and Gauge Port Without Control Line and Gauge Port Welded CL150 RF Welded CL300 RF 1/2-inch / DN 15 Welded PN 16/25/40 RF Welded CL150 RF With Control Line but Without Gauge Port...
  • Page 7 MR95 Series Table 2. Types MR95H, MR95HD, MR95HT, and MR95HP Regulators Body Constructions BoDy MaTERiaLS BoDy BoDy SizE END coNNEcTioN coNSTRucTioN 1/4 NPT Without Gauge Port and Control Line Welded CL150 RF Welded CL300 RF Welded CL600 RF Without Control Line and Gauge Port Welded PN 16/25/40 RF Integral CL150 RF 1/2-inch / DN 15...
  • Page 8 MR95 Series Table 2. Types MR95H, MR95HD, MR95HT, and MR95HP Regulators Body Constructions (continued) BoDy MaTERiaLS BoDy BoDy SizE END coNNEcTioN coNSTRucTioN Welded CL150 RF With Control Line but Without Gauge Port Welded CL300 RF Welded PN 16/25/40 RF 1-inch / DN 25 Welded CL150 RF With Gauge Port but Without Control Line Welded CL300 RF...
  • Page 9 MR95 Series Table 3. MR95 Series Outlet and Differential Pressure Ranges and Spring Information OUTLET OR DIFFERENTIAL SPRiNG WiRE SPRING FREE BoDy SizE PRESSuRE RaNGE DiaMETER LENGTH SPRiNG SPRiNG PaRT SPRiNG TyPE MaTERiaL NuMBER coLoR Inch psi/psig Inch Inch 2 to 6 0.14 to 0.41 0.148 3.76...
  • Page 10 MR95 Series Table 4. Maximum Cold Working Pressures of Body Size and Material (1)(2) MaXiMuM iNLET MaXiMuM ouTLET MaXiMuM SPRiNG caSE PRESSuRE PRESSuRE PRESSuRE TyPE BoDy SizE BoDy MaTERiaLS psig psig psig Gray cast iron 17.2 WCC Steel 20.7 LCC Steel 20.7 MR95L and All available...
  • Page 11 MR95 Series PLaNT aiR aTMoSPHERE BLocK VaLVE TYPE 67CFR REGULATOR (INLET) VENT (OUTLET) VENT TYPE MR95LD REGULATOR (ALSO TYPICAL OF TYPE MR95HD) Figure 3. Differential Pressure Regulator Installation Schematics Installation Before installing the regulator: • Unpack the regulator and remove the protective shipping plugs from the end connections of WaRNiNG the body and the pressure connection in the...
  • Page 12 MR95 Series Overpressure Protection specific constructions. Use pressure gauges to monitor inlet pressure, outlet pressure, and any loading pressure WaRNiNG during startup. Personal injury, equipment damage, or 1. Check that proper installation is completed leakage due to escaping accumulated gas and downstream equipment has been or bursting of pressure-containing parts properly adjusted.
  • Page 13 MR95 Series Maintenance Types MR95L, MR95H, MR95HP, and MR95HT WaRNiNG Key numbers are referenced in Figure 6, 8, or 9. 1. Loosen the jam nut (key 17). To avoid personal injury, property 2. Turn the adjusting screw (key 15) clockwise to damage, or equipment damage caused by increase outlet pressure, or counterclockwise to sudden release of pressure or explosion...
  • Page 14 MR95 Series Replacement or Maintenance of Orifice could be worn out or ruptured. Inspect/replace the diaphragm as follows: and Valve Plug If it appears that the valve does not shut off tightly, the cauTioN orifice and valve plug could be worn out or damaged. Proceed as follows to check and/or replace them.
  • Page 15 MR95 Series GASKET (KEY 19) DIAPHRAGM (KEY 12) DIAPHRAGM (KEY 12) GASKET (KEY 19) GASKET (KEY 19) TyPES MR95L aND MR95H METaL DiaPHRaGM TyPES MR95LD aND MR95HD METaL DiaPHRaGM Figure 4. Diaphragm Assembly for MR95 Series with 1/4 NPT to 1 inch / DN 25 Body Sizes LOCKNUT (KEY 31) LOCKNUT (KEY 31) LOCK WASHER (KEY 28)
  • Page 16 MR95 Series Table 7. Torque Specifications BoDy SizE SPRiNG caSE BoLTS ORIFICE PLuG GuiDE Inches Foot-pounds N•m Foot-pounds N•m Foot-pounds N•m - - - - 6 to 8 8.1 to 11 6 to 8 8.1 to 10.8 50 to 58 68 to 79 10 to 13 13 to 18...
  • Page 17 MR95 Series Parts Ordering Description Part Number Parts Kit (included are keys 3, 4, 12, 19, 29, When corresponding with your local Sales Office about 45, and 63; not all parts are used for all types) (continued) this equipment, always reference the equipment serial Type MR95HT, Stainless Diaphragm and Plug number or FS number that can be found on 1/4 NPT Body...
  • Page 18 MR95 Series Description Part Number Description Part Number Orifice (continued) Stem/Stem Assembly Composition seat (continued) Types MR95L, MR95LD, MR95H, and MR95HD 1-1/2 and 2-inch / DN 40 and 50 Body Sizes 1/4 NPT Body Size (Types MR95H and MR95HD only) 416 Stainless Steel, Oxygen Service ERCA00638A0 Brass, Oxygen Service...
  • Page 19 MR95 Series Description Part Number Description Part Number O-ring (1-1/2 to 2-inch / Upper Spring Seat, NACE (continued) DN 40 and 50 Body Sizes only) - - - - - - - - - - - Types MR95HP and MR95HT (continued) O-ring (1/2 to 1-inch / DN 15 to 25 Body Sizes only) - - - - - - - - - - - 1-1/2 and 2-inch / DN 40 and 50 Body Sizes...
  • Page 20 MR95 Series Description Part Number Description Part Number Cap Screw, NACE (continued) Diaphragm Gasket (continued) Types MR95H and MR95HD (continued) (2 required for pressure loaded 3/4 and 1-inch / DN 20 and 25 Body Sizes spring case) (continued) Steel (8 required) GF05446X012 For Stainless Steel Oxygen Service Diaphragm Stainless Steel (8 required)
  • Page 21 MR95 Series Description Part Number Description Part Number Inner Valve Spring Handwheel/Handle 1/4 NPT Body Size Handwheel Adjustment 302 Stainless Steel, Oxygen Service ERCA04280A0 1/4 NPT Body Size ERAA01636A0 Inconel , NACE ERCA04281A0 1/2 to 1-inch / DN 15 to 25 Body Sizes ERAA01669A0 ®...
  • Page 22 MR95 Series Key 1, Types MR95L and MR95LD Regulator Body Part Numbers BoDy MaTERiaLS BoDy SizE CF8M CF3M coNNEcTioN Gray Cast Iron Wcc Steel Lcc Steel Monel Hastelloy ®(1) ® Stainless Steel Stainless Steel 1/4-inch ERCA01629A0 GF04880X022 GF04880X062 GF04880X052 GF04880X042 - - - - - - - - - - - - - - - - - - - - - - ERCA01658A0...
  • Page 23 MR95 Series Key 1, Types MR95H, MR95HD, MR95HP, and MR95HT Regulator Body Part Numbers BoDy MaTERiaLS CF8M CF3M BoDy SizE Aluminum- coNNEcTioN Gray Cast Iron Wcc Steel Lcc Steel Stainless Stainless Monel Hastelloy ®(1) ® Bronze Steel Steel 1/4-inch ERCA01628A0 GF04858X022 GF04858X062 GF04858X052...
  • Page 24 MR95 Series Key 1, Types MR95H, MR95HD, MR95HP, and MR95HT Regulator Body Part Numbers BoDy MaTERiaLS CF8M CF3M BoDy SizE Aluminum- coNNEcTioN Gray Cast Iron Wcc Steel Lcc Steel Stainless Stainless Monel Hastelloy ®(1) ® Bronze Steel Steel ERCA01563A0 GF05235X022 GF05235X082 GF05235X052 GF05235X042...
  • Page 25 MR95 Series SEALED ADJUSTING SCREW OPTION TEE-HANDLE OPTION COMPOSITE SEAT OPTION CONTROL LINE OPTION METAL DIAPHRAGM OPTION GF04915 aPPLy LuBRicaNT oR SEaLaNT T = THREaD LocKER L1 = GENERAL PURPOSE PTFE OR LITHIUM GREASE L2 = aNTi-SEizE coMPouND L4 = GRaPHiTE SEaLaNT 1.
  • Page 26 MR95 Series CONTROL LINE OPTION COMPOSITE SEAT OPTION GF04919 aPPLy LuBRicaNT oR SEaLaNT T = THREaD LocKER METAL DIAPHRAGM OPTION L1 = GENERAL PURPOSE PTFE OR LITHIUM GREASE L2 = aNTi-SEizE coMPouND L3 = SiLicoNE GREaSE L4 = GRaPHiTE SEaLaNT 1.
  • Page 27 MR95 Series TEE-HANDLE OPTION SEALED ADJUSTING SCREW OPTION HP OPTION COMPOSITE SEAT OPTION METAL DIAPHRAGM OPTION CONTROL LINE OPTION GF04914 aPPLy LuBRicaNT oR SEaLaNT L1 = GENERAL PURPOSE PTFE OR LITHIUM GREASE L2 = aNTi-SEizE coMPouND L4 = GRaPHiTE SEaLaNT 1.
  • Page 28 MR95 Series TEE-HANDLE SEALED ADJUSTING OPTION SCREW OPTION METAL DIAPHRAGM OPTION 27B L1 HP OPTION COMPOSITION SEAT OPTION CONTROL LINE OPTION GF04500 aPPLy LuBRicaNT oR SEaLaNT L1 = GENERAL PURPOSE PTFE OR LITHIUM GREASE L2 = aNTi-SEizE coMPouND L4 = GRaPHiTE SEaLaNT 1.
  • Page 29 MR95 Series METAL DIAPHRAGM OPTION CONTROL LINE OPTION COMPOSITION SEAT OPTION GF04918 aPPLy LuBRicaNT oR SEaLaNT L1 = GENERAL PURPOSE PTFE OR LITHIUM GREASE L2 = aNTi-SEizE coMPouND L4 = GRaPHiTE SEaLaNT 1. Lubricants and sealants must be selected such that they meet the temperature requirements. 2.
  • Page 30 MR95 Series Key 1, Types MR95H, MR95HD, MR95HP, and MR95HT Regulator Body Part Numbers BoDy MaTERiaLS BoDy SizE CF8M Stainless CF3M Stainless Aluminum- coNNEcTioN Gray Cast Iron Wcc Steel Lcc Steel Monel Hastelloy ®(1) ® Steel Steel Bronze ERCA01590A0 GF05290X022 GF05290X082 GF05290X052 GF05290X042...
  • Page 31 MR95 Series Key 4, Valve Plug, Metal Seat BODY SIZE, INCH / DN TyPE MaTERiaL 1/4 NPT 1/2 / 15 3/4 and 1 / 20 and 25 1-1/2 and 2 / 40 and 50 416 Stainless Steel ERCA00360A0 ERCA00287A0 GF05476X022 ERCA00375A0 316 Stainless Steel ERCA00360A1...
  • Page 32 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.

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