• PR56 Pressure Regulator, Single Stage, Brass, 0-500 PSIG PR56-2C11H5J34V

GO Regulator PR56-2C11H5J34V PR56 Pressure Regulator, Single Stage, Brass, 0-500 PSIG

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Shipping Weight:
5.00 LBS


To meet the demands for the safe reduction of inlet pressures up to 6,000 PSIG, GO Regulator has designed the PR-56 Series regulator. This precision regulator features a piston sensing design which provides the operator with low adjusting torque requirements when setting the outlet pressure.

The optional self relieving feature provides an additional level in operational ease, as it allows for trapped downstream pressure to be safely vented to atmosphere through the bonnet.

Features and Specifications

  • Gas or liquid service
  • Brass (alloy 360) construction
  • Better than 25 Ra finish in diaphragm cavity
  • Stainless steel spring loaded piston sensor
  • 20 micron filter
  • Bubble-tight shutoff
  • Viton® seals (other elastomers optional)
  • Inlet pressure maximum 6000 PSIG
  • Outlet pressure ranges are 0-250, 0-500, 0-750, 0-1000, 0-2000, 0-4000, and 0-6000 PSIG
  • ¼" FNPT standard
  • Cv flow coefficient 0.05 or 0.2


  • Gauges and CGA fittings for cylinder gas application
  • Self-relieving and captured vent
  • ⅜" FNPT

Product Specifications

Body MaterialBrass
Port ConfigurationC
Process Port Type¼" FNPT (¼" FNPT gauge ports)
Surface Finish of Diaphragm Cavity< 25 Ra
Seat MaterialPCTFE (formerly Kel-F 81)
Flow Coefficient (Cv)0.2
Outlet Range0-500 PSIG
Piston TypeSelf-relieving
Piston MaterialStainless Steel/PTFE Cavity O-ring