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Designed for low and high pressures up to 4000 psig inlet, the PR-59 Series pressure reducing regulator controls high flow with its Cv flow coefficient of 1.2. Though normally supplied without self-relieving capability, this feature can be added as an option.

While primarily designed for use with gas streams, the PR-59 can be used with virtually any liquid systems that are compatible with the seals. A large size piston sensor gives good sensitivity of control even at low outlet pressures and the Kel-F® valve seat assembly gives normal bubbletight shutoff.
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PR-59 High Pressure/High Flow Single Stage Regulators

PR-59 0 to 4000 Pounds per Square Inch Gauge (psig) Outlet Range High Pressure/High Flow Single Stage Regulator
PR-59 High Pressure/High Flow Single Stage Regulators

PR-59 0 to 4000 Pounds per Square Inch Gauge (psig) Outlet Range High Pressure/High Flow Single Stage Regulator
PR-59 High Pressure/High Flow Single Stage Regulators

PR-59 0 to 1000 Pounds per Square Inch Gauge (psig) Outlet Range High Pressure/High Flow Single Stage Regulator
PR-59 High Pressure/High Flow Single Stage Regulators

PR-59 0 to 750 Pounds per Square Inch Gauge (psig) Outlet Range High Pressure/High Flow Single Stage Regulator
PR-59 High Pressure/High Flow Single Stage Regulators

PR-59 0 to 500 Pounds per Square Inch Gauge (psig) Outlet Range High Pressure/High Flow Single Stage Regulator
Description N/A Designed for low and high pressures up to 4000 psig inlet, the PR-59 Series pressure reducing regulator controls high flow with its Cv flow coefficient of 1.2. Though normally supplied without self-relieving capability, this feature can be added as an option.

While primarily designed for use with gas streams, the PR-59 can be used with virtually any liquid systems that are compatible with the seals. A large size piston sensor gives good sensitivity of control even at low outlet pressures and the Kel-F® valve seat assembly gives normal bubbletight shutoff.
Brands N/A GO Regulator, Inc.
Body Material N/A 316L Stainless Steel
Port Configuration N/A Standard N/A B - See Diagram for Port Configuration N/A B - See Diagram for Port Configuration N/A B - See Diagram for Port Configuration N/A C - See Diagram for Port Configuration
Process Port Types N/A 1/2 in. Female National Pipe Tapered (FNPT) N/A N/A 1/2 in. Female National Pipe Tapered (FNPT) N/A 1/2 in. Female National Pipe Tapered (FNPT) N/A 1/2 in. Female National Pipe Tapered (FNPT)
Gauge Port Types N/A 1/4 in. Female National Pipe Tapered (FNPT) Gauge Ports N/A N/A 1/4 in. Female National Pipe Tapered (FNPT) Gauge Ports N/A 1/4 in. Female National Pipe Tapered (FNPT) Gauge Ports N/A 1/4 in. Female National Pipe Tapered (FNPT) Gauge Ports
Surface Finish of Diaphragm Cavity N/A < 25 Ra
Seat Material N/A Polychlorotrifluoroethylene (PCTFE) (Formerly Kel-F® 81) N/A N/A Polychlorotrifluoroethylene (PCTFE) (Formerly Kel-F® 81) N/A Polychlorotrifluoroethylene (PCTFE) (Formerly Kel-F® 81) N/A Polychlorotrifluoroethylene (PCTFE) (Formerly Kel-F® 81)
Flow Coefficient (Cv) N/A 1.2 N/A N/A 1.2 N/A 1.2 N/A 1.2
Outlet Range N/A 0 to 4000 psig N/A 0 to 4000 psig N/A 0 to 1000 psig N/A 0 to 750 psig N/A 0 to 500 psig
Piston Type N/A Non-Self-Relieving N/A Self-Relieving N/A Non-Self-Relieving N/A Non-Self-Relieving N/A Non-Self-Relieving
Piston Material N/A Stainless Steel N/A MONEL® N/A Stainless Steel N/A Stainless Steel N/A Stainless Steel
Cap Assembly N/A Plastic Knob, Stainless Steel N/A Standard, Stainless Steel N/A Standard, Stainless Steel N/A Standard, Stainless Steel N/A Standard, Stainless Steel
Options N/A N/A EB33 N/A N/A N/A
Operating Temperature N/A -40 to +175 ºF-40 to +80 ºC
Weight N/A 4.6 lb2.1 kg
Features and Specifications N/A
  • 316L stainless steel, Brass and MONEL® body construction
  • Inlet pressure capability up to 4000 psig
  • Outlet control ranges from 250 psig up to 4000 psig
  • Optional self-relieving feature
  • Inlet and outlet ports of 1/2" or 3/4" FNPT with 1/4" FNPT gauge ports optional
  • 1/2" FNPT standard
  • Balanced poppet valve design for constant pressure control
  • Fluorocarbon (FKM) seals (other elastomers optional)
  • Polychlorotrifluoroethylene (PCTFE) seat
Note N/A Contact the factory for any additional requirements.

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