Fisher MR108

Fisher MR108

Type MR108 backpressure regulators are direct-operated, high-capacity, multi-purpose regulators. They are designed to handle pressures up to 400 psig / 27.6 bar and temperatures up to 250°F / 121°C. They provide reliable and economical control for different flow media like liquid, air, and gas. Application includes lube oil systems and any application where speed of response is critical, minimum differential pressure is a concern, or fluid is not free of impurities.

Pressure Registration External
Temperature Capabilities Nitrile (NBR): -20 to 180°F / -29 to 82°C | Fluorocarbon (FKM): 20 to 250°F / -7 to 121°C; limited to 200°F / 93°C in hot water | Ethylene Propylene (EPDM): -20 to 225°F / -29 to 107°C
Body Sizes NPS 1 / 2 / 3 / 4 | DN 25 / 50 / 80 / 100
End Connections NPT / CL125FF / CL150RF / CL250RF / CL300RF / CL600RF / PN 16/25/40
Maximum Inlet Pressure 400 PSIG / 27.6 bar | Or body rating limit, whichever is lower
Maximum Outlet Pressure 400 PSIG / 27.6 bar | Or body rating limit, whichever is lower
Spring Ranges 5 to 300 PSIG / 0.4 to 20.7 bar
  • Steel and Stainless Steel Constructions Meet API 614 Requirements
  • Available Constructions to Meet NACE MR0175-2003 and NACE MR0103 Requirements for Sour Gas Service Capability
  • P1 = P2 on High-Pressure Actuator
  • Drain Valve
  • Pressure-Loaded Actuator
  • Bleed valve (for High-Pressure Actuator only)
  • Travel Indicator

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