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Fisher™ Type MR105 Direct-Operated Pressure Reducing Liquid Regulator
Type MR105 direct-operated pressure reducing regulator is a high capacity multi-purpose regulator designed to provide fast and economical pressure control for various applications and is suitable for different flow media such as liquid, air, and gas.
Type MR105 is ideal for applications where speed of response is critical, minimum differential pressure is a concern, or the process fluid is not free of impurities. Typical applications include lube oil, cooling water and pump bypass regulators.

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Fisher™ Type MR105 Direct-Operated Pressure Reducing Liquid Regulator


Pressure Registration
Temperature Capabilities
Nitrile (NBR):?-20 to 180°F / -29 to 82°C
Body Sizes
NPS 1 / 2 / 3 / 4
End Connections
NPT / CL125FF / CL150RF / CL250RF / CL300RF / CL600RF / PN 16/25/40
Maximum Inlet Pressure
400 psig / 27.6 bar
Maximum Outlet Pressure
400 psig / 27.6 bar
Spring Ranges
5 to 300 psig / 0.4 to 20.7 bar
Additional Technical Data
For additional technical information,?contact?your local?Sales Office?or refer to technical documentation.


  • 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