• PR1 Pressure Regulator, Single Stage, SS316L, 0-100 PSIG PR1-1L11B3G111

GO Regulator PR1-1L11B3G111 PR1 Pressure Regulator, Single Stage, SS316L, 0-100 PSIG

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Shipping Weight:
3.00 LBS

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The PR-1 Series is a versatile pressure reducing regulator designed to fulfill a wide range of needs in instrumentation sample systems and other applications such as semiconductor processing gases. Many features of the PR-1 make it ideal for a wide range of applications controlling pressures at low to moderate flows in gas or liquid service. Stainless steel caps and adjusting screws prevent atmospheric corrosion and maintain appearance. Enhanced internal body surface finish of better than 25 Ra plus electropolishing allows easier cleaning and potentially less particle contamination in the flow stream.

Three different seat materials, three alternate orifice sizes and 7 pressure control ranges with INCONEL® diaphragms offer the user a wide spectrum of capabilities for pressure control with inlet pressures up to 6000 PSIG and standard operating temperatures up to 500° F (260° C).

Features and Specifications

  • Gas or liquid service
  • 316L Stainless Steel, INCONEL®, PTFE, and Tefzel® (or optional main seat material choice) only in flow stream
  • Electropolished 316L body with better than 25 Ra diaphragm cavity surface finish
  • Stainless steel cap with SS adjusting screw
  • Inlet pressures of up to 6000 PSI
  • Adjustable outlet pressure ranges of 0-10, 0-25, 0-50, 0-100, 0-250, 0-500, and 0-750 PSIG
  • Operating temperatures of -40° F up to +500° F (-40° C up to +260° C)
  • 20 micron filters
  • Bubble-tight shutoff under most conditions
  • Cv flow coefficients 0.025, 0.06, 0.20, and 0.50 (0.06 standard)


  • Wetted materials of construction: MONEL®, HASTELLOY®, Titanium and 6MO
  • Panel mount (1 ⅜" mounting hole)
  • Special diaphragm assembly for water service
  • SS inlet pressure gauges
  • SS outlet pressure gauges
  • Base-mounting brackets
  • Captured vent
  • Self-relieving

Product Specifications

Body Material316L Stainless Steel
Port ConfigurationL
Process Port Type¼" FNPT (¼" FNPT gauge ports), Standard
Surface Finish of Diaphragm Cavity< 25 Ra, Standard
Seat MaterialCeramic Filled PTFE
Flow Coefficient (Cv)0.06
Outlet Range0-100 PSIG
Diaphragm TypeStandard Diaphragm
Diaphragm Facing/Backing MaterialPTFE/Metal Backing, Standard
Cap AssemblyStandard, Stainless Steel

Literature & Docs