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FIR-1 Filter/Instrument Regulator

Part Number: FIR01KOXC35 Brand: Welker, Inc
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The Welker FIR-1 Filter / Instrument Regulator is designed to filter and provide regulation of an instrument pneumatic supply. It is intended for use as part of instrument packages.

The regulator of the FIR-1 is non-relieving. Welker recommends that a relief valve, such as the Welker RV-1 or RV-3 series relief valves, be installed downstream of the FIR-1.
Features
  • Diaphragm-Sensing
  • Adjustable Output Pressure With Locknut
  • Space-Saving Design
Benefits
  • Increased Low-Pressure Sensitivity
  • Field-Adjustable; Prevents Setting From Changing Due To Vibration
  • Protect Downstream Equipment And Lengthen Regulator's Operational Life
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The Welker FIR-1 Filter / Instrument Regulator is designed to filter and provide regulation of an instrument pneumatic supply. It is intended for use as part of instrument packages.

The regulator of the FIR-1 is non-relieving. Welker recommends that a relief valve, such as the Welker RV-1 or RV-3 series relief valves, be installed downstream of the FIR-1.
Features
  • Diaphragm-Sensing
  • Adjustable Output Pressure With Locknut
  • Space-Saving Design
Benefits
  • Increased Low-Pressure Sensitivity
  • Field-Adjustable; Prevents Setting From Changing Due To Vibration
  • Protect Downstream Equipment And Lengthen Regulator's Operational Life
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Specifications

Brand

Materials of Construction

  • 316/316L Stainless Steel
  • Kel-F® Seat
  • PTFE
  • Teflon
  • Viton

Filter Element

  • 10 micron Linear Polyethylene
  • 35 micron Linear Polyethylene

Operating Pressure

  • 3000 psig MAOP @ -20° F to 100° F

Maximum Allowable Temperature

  • 200° F

Inlet Pressure

  • 0 - 3000 psig

Outlet Pressure

  • Dependent upon Spring Range. Refer to the Spring Range Disc under the Regulator Jam Nut.

Instrument Air Connections

  • ¼” NPT
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