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GDR Series Gas Delivery Regulator

Brand: Generant Inc

The GDR Series Regulator provides reliable and precise pressure control in the most demanding applications. 

Optimized spring design with unique Venturi design assures high flow with extremely low droop characteristics. Solid, non-tied diaphragm and all brass construction will provide leak-free and long-lasting performance. 

Regulator is fully balanced to virtually eliminate outlet pressure fluctuations due to inlet pressure variations. All GDR Series regulators are 100% factory tested.
Features
  • Fully balanced design: Maintains a constant delivery pressure regardless of inlet pressure fluctuations
  • Optimized for high flow: Unique Venturi tube and optimized spring design allows for high flow rates
  • Wide pressure range: Inlet pressures up to psi: 550 (kPa: 3,792, bar: 37.92), outlet pressures up to psi: 450 (kPa: 3,103, bar: 31.03)
  • Solid, non-tied, diaphragm: Solid diaphragm eliminates potential leak path and increases sensitivity
  • Configurable: Order regulators with various porting options, panel-mounted, with chamber pipe-a-way, or pilot operated
  • Oxygen service compatible: Designed for use in oxygen service and cleaned for use in O2 service standard

Specifications

Brand

BSP Connection

  • 1” BSPT Female
  • 1/2” BSPT Female
  • 1/4” BSPT Female
  • 3/4” BSPT Female

Diaphragm Material

  • EPDM
  • FKM
  • Nitrile

Enclosure, Body Material

  • Brass

Flow Capacity

  • Fail Open Flow Coefficient: 1.6 to 2.9 Cv - GDR-500
  • Fail Open Flow Coefficient: 5.8 Cv - GDR-1000

Flow Rate

  • Usable: 1.5 Cv, Max.
  • Usable: 2.7 Cv, Max.

Materials of Construction

  • Chamber Insert: 303 Stainless Steel, ASTM A276
  • Trim (Flange Screw & Locknut): 301 Stainless Steel (18-8)
  • Valve, Spring Button, Spring Retainer, Venturi Tube: CDA 360 Brass, ASTM B16

Mounting

  • Panel Mount

NPT Connection

  • 1” NPT Female
  • 1/2” NPT Female
  • 1/4” NPT Female
  • 1/4” NPT Male
  • 3/4” NPT Female
  • 3/8” NPT Female

Pilot Pressure

  • psig: 250 (kPa: 1,720, bar: 17.2) - Max.
  • psig: 450 (kPa: 3,100, bar: 31) - Max.

Pressure Range

  • bar: 0 to 15.5
  • bar: 0 to 31
  • kPa: 0 to 1,550
  • kPa: 0 to 3,100
  • psi: 0 to 225
  • psi: 0 to 450

Screw Material

  • Adjustment Screw: CDA 360 Brass, ASTM B16

Seat / Seal Material

  • Soft Seal (Valve & O-Ring): EPDM
  • Soft Seal (Valve & O-Ring): FKM
  • Soft Seal (Valve & O-Ring): Nitrile

Spring Material

  • Adjustment Spring: Chrome Silicon, ASTM A401 - GDR-1000
  • Adjustment Spring: Music Wire, ASTM A228 - GDR-500
  • Valve Spring: 302 Stainless Steel - ASTM A313

Stem Material

  • Valve Stem: CDA 360 Brass, ASTM B16

Supply Pressure - Maximum

  • bar: 27.6
  • bar: 37.92
  • kPa: 2,760
  • kPa: 3,792
  • psi: 400
  • psi: 550

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