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MR98 Series AD2000 Compliant

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governed by our terms and conditions, which are available upon request. We

reserve the right to modify or improve the designs or specifications of such

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Responsibility for proper selection, use and maintenance of any Emerson

Process Management Regulator Technologies, Inc. product remains solely

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Содержание Fisher MR98H

Страница 1: ...Backpressure Regulators and Relief Valves AD2000 Compliant Figure 1 Typical MR98 Series Backpressure Regulators and Relief Valves TYPE MR98H WITH FLANGE END CONNECTION TYPE MR98H April 2022 MR98 Series AD2000 Compliant Instruction Manual D104615X012 ...

Страница 2: ...e Table 2 Maximum Cold Working Pressures of Body Size and Materials 1 See Table 3 Maximum Inlet Outlet and Spring Case Pressure Ratings 1 See Table 3 Maximum Temperature Ranges of Diaphragm Seat Trim and Body Materials 1 2 See Table 4 Flow Coefficients IEC Sizing Coefficients Pressure Registration Internal or External Shutoff Classification Per ANSI FCI 70 3 2004 Metal Seats Class IV Polytetrafluo...

Страница 3: ...t Gauge Port G Thread Welded CL150 RF Welded CL300 RF With Gauge Port but Without Control Line G Thread Welded CL150 RF Welded CL300 RF Welded PN 16 25 40 RF 1 in DN 25 Without Control Line and Gauge Port G Thread SWE Welded CL150 RF Welded CL300 RF Welded PN 16 25 40 RF Integral CL150 RF Integral CL300 RF Integral PN 16 25 40 RF With Control Line but Without Gauge Port G Thread Welded CL150 RF We...

Страница 4: ... RF Welded CL300 RF Welded PN 16 25 40 RF 2 in DN 50 Type MR98H only Without control line and gauge port G Thread SWE Welded CL150RF Welded CL300RF Welded PN 16 25 40 RF Integral CL150 RF Integral CL300 RF Integral PN 16 25 40 RF With control line but without gauge port G Thread Welded CL150 RF Welded CL300 RF With gauge port but without control line G Thread Welded CL150 RF Welded CL300 RF Welded...

Страница 5: ...ay 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 2 Springs meet NACE MR0175 2002 NACE MR0103 and NACE MR0175 ISO 15156 requirements only for applications in which the spring is not exposed to the sour gas 3 Available in Inconel 4 Spring range changes to 5 to 60 psig 0 34 to 4 1 bar fo...

Страница 6: ...y system test fixtures and sterilizers Backpressure Regulator Pressure Relief Valve Types MR98H and MR98HH Regulators are direct operated backpressure regulator relief valve for pressure control requiring constant outlet pressures between 2 to 375 psig 0 14 to 25 9 bar See Tables 1 through 4 for detailed breakdown of the various construction offerings Principle of Operation Relief or backpressure ...

Страница 7: ...NE TAP 1 2 in DN 15 TYPE MR98H WITH EXTERNAL PRESSURE REGISTRATION TYPE MR98H WITH INTERNAL PRESSURE REGISTRATION SIDE AND INTERNAL VIEW OF 3 4 TO 2 in DN 20 TO 50 TYPE MR98H WITH EXTERNAL PRESSURE REGISTRATION METAL DIAPHRAGMS SPRING GASKET FOR TYPE MR98H WITH TWO METAL DIAPHRAGMS ALSO TYPICAL OF TYPE MR98HH ATMOSPHERIC PRESSURE OUTLET PRESSURE INLET PRESSURE Figure 2 MR98 Series Operational Sche...

Страница 8: ...ons Startup Note The Specifications section and Table 3 show the maximum inlet and differential pressures for specific constructions Use pressure gauges to monitor inlet pressure outlet pressure and any loading pressure during startup Key numbers are shown in Figures 3 through 5 1 Check that proper installation is completed and downstream equipment has been properly adjusted 2 Make sure all block ...

Страница 9: ...d gas do not attempt any maintenance or disassembly without first isolating the relief valve or regulator from system pressure and relieving all internal pressure from the relief valve or regulator To avoid possible personal injury from spring or pressure loaded actuator make sure that the adjusting screw is completely backed off or the spring case pressure is vented prior to disassembly Otherwise...

Страница 10: ...ug 1 Shut down the backpressure regulator or relief valve Refer to Shutdown section for the proper procedure 2 For Types MR98H and MR98HH Relieve the spring tension by loosening the jam nut key 17 and turning the adjusting screw key 15 counterclockwise 3 Remove cap screws key 16 and lift off the spring case key 2 upper spring seat key 9 and relief valve spring key 11 Lift out the diaphragm unit wh...

Страница 11: ...0 Lubricate the threads of the pusher post and tighten the pusher post lock nut key 31 until the lock washer is flat and then turn the nut an additional 1 8 to 1 4 turn Return the diaphragm key 12 spring seat and pusher post assembly to the body key 1 Replacement or Maintenance of Bottom Plug O ring If there is any external leakage from the bottom plug the bottom plug O ring could be worn out or d...

Страница 12: ...F05529X032 1 1 2 and 2 in DN 40 and 50 Body Sizes 416 Stainless steel GF05539X022 316 Stainless steel NACE Oxygen Service GF05539X032 8 Lower Spring Seat NACE Type MR98H 1 2 in DN 15 Body Size Stainless steel 1L3397X0012 3 4 and 1 in DN 20 and 25 Body Sizes Stainless steel 1L3427X0012 1 1 2 and 2 in DN 40 and 50 Body Sizes Stainless steel 1P7877X0012 Type MR98HH 1 2 in DN 15 Body Size Stainless st...

Страница 13: ...el 1J4159X0012 316 Stainless steel NACE Oxygen Service 1J4159X0012 Hastelloy C NACE 1J4159X0062 3 4 and 1 in DN 20 and 25 Body Sizes 416 Stainless steel 1L343538992 316 Stainless steel NACE Oxygen service 1L3435X0012 Hastelloy C NACE 1L3435X0052 24 Machine Screw continued 1 1 2 and 2 in DN 40 and 50 Body Sizes 416 Stainless steel 1P788638992 316 Stainless steel NACE Oxygen Service 1P788638992 Hast...

Страница 14: ...4A2 Perfluoroelastomer FFKM seat ERCA00974A3 Key Description Part Number Key Description Part Number 59 L ring 1 1 2 and 2 in DN 40 and 50 Body Sizes Nitrile NBR seat ERCA00668A1 Fluorocarbon FKM seat ERCA00668A2 Ethylenepropylene EPDM seat ERCA00668A3 Perfluoroelastomer FFKM seat ERCA00668A5 63 Bottom Plug Seal 1 2 in DN 15 Body Size Nitrile NBR ERCA03016A0 Fluorocarbon FKM ERCA03016A1 Ethylenepr...

Страница 15: ...6 Note Contact your local Sales Office if additional gauge and control line options are needed Monel is a mark owned by Special Metals Corporation Hastelloy C is a mark owned by Haynes International Inc Key 2 Spring Case Part Numbers TYPE BODY SIZE STYLE SPRING CASE MATERIAL In DN 1 4408 Stainless steel 1 MR98H 1 2 15 1 4 NPT Vent ERAA50448A0 3 4 and 1 20 and 25 1 4 NPT Vent ERAA50449A0 1 1 2 and ...

Страница 16: ...MR0175 2002 NACE MR0103 and NACE MR0175 ISO 15156 2 Oxygen Service Key 12 Composition Diaphragm NACE TYPE BODY SIZE DIAPHRAGM MATERIAL In DN Neoprene CR Fluorocarbon FKM 2 required EPDM MR98H and MR98HH 1 2 15 ERCA00512A0 ERCA00512A1 ERCA00512A2 3 4 and 1 20 and 25 ERCA00518A0 ERCA00518A1 ERCA00518A2 1 1 2 and 2 40 and 50 ERCA00661A0 ERCA00661A1 ERCA00661A2 Recommended Spare Part Key 12 Metal Diap...

Страница 17: ...AL PURPOSE PTFE OR LITHIUM GREASE FOR O RINGS L2 ANTI SEIZE COMPOUND 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 Note Use key 69 or 71 onl...

Страница 18: ...1 GENERAL PURPOSE PTFE OR LITHIUM GREASE FOR O RINGS L2 ANTI SEIZE COMPOUND 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 Note Use key 69 or...

Страница 19: ...2 ANTI SEIZE COMPOUND 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 only 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 Key 68 is available for Type MR98HH with 3 4 and 1 in DN 20 and 2...

Страница 20: ...herein or their use or applicability All sales are governed by our terms and conditions which are available upon request 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 ...

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