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Gas Regulators

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The R21 Series Regulator is a diaphragm-sensed single-stage “High Purity” regulator, designed for applications where low flow is desired.

The R31 Series Regulator is a diaphragm-sensed dual-stage “High Purity” regulator, designed for applications where a consistent outlet pressure and flow is desired.
Available in Nickel Plated Brass or Stainless Steel.

Features for both Single & Dual Stage:
•    Metal to Metal Seal
•    Body Port Outlet Size: 1/4” NPT(F)
•    2” Pressure Gauges
•    Safety Test Pressure: 1.5 times maximum inlet pressure
•    Temperature Range: -40°C to 74°C
•    Leak Rate: 2 x 10-8 atm.cc/sec He

Single Stage:

  • Maximum CV: 0.14
  • Weight: 1Kg/ 2.2lb

Materials Single Stage:

  • Body: Nickel-plated Brass
  • Seat: PCTFE
Dual Stage:

  • Maximum CV: 0.08
  • Weight: 1.3Kg/ 2.86lb

Materials Dual Stage

  • Body: Nickel-plated Brass
  • Seat: PCTFE
  • Diaphragm: 316L