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Hydrogen Pressure Reducing Valves

Hydrogen Pressure Reducing Valves - CA4

Cashco Inc

  • Max inlet pressure: 3000 psig (207 Barg)
  • Outlet: 5-300 psig (0.34-20.7 Barg)
  • Temperature range: -20 to +400°F (-29 to +204°C)
  • Dome-loaded, flow-to-open design
  • Internal pressure-balancing piston-cylinder

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Description Vendor

The CA4 operates as a dome-loaded, flow-to-open pressure-reducing regulator explicitly catalogued for hydrogen service within its specified operating envelope. Designed with an internal pressure-balancing piston-cylinder, this unit is suitable for both gas and liquid service applications. The regulator handles a maximum inlet pressure of 3000 psig (207 Barg) and regulates an outlet pressure range of 5–300 psig (0.34–20.7 Barg) across a temperature range of -20 to +400°F (-29 to +204°C). Engineered for hydrogen pressure reduction, it accommodates a Cv range of 3.5–18 and is available in line sizes of 3/4 in (DN20), 1 in (DN25), 1.5 in (DN40), and 2 in (DN50) with tube-end connections.

Use Cases

  • Hydrogen pressure reduction
  • Gas service
  • Liquid service

Capabilities

  • Reduces inlet pressure for hydrogen service
  • Handles inlet pressure up to 3000 psig (207 Barg)
  • Controls outlet pressure from 5 to 300 psig (0.34 to 20.7 Barg)
  • Provides Cv from 3.5 to 18
  • Operates from -20 to +400°F (-29 to +204°C)
Cashco Inc

Cashco, Inc. manufactures pressure regulators and control valves rated for hydrogen service, with its Model P1 self-contained regulator explicitly designed for gaseous or liquid high-purity oxygen, nitrogen, hydrogen, and argon applications, handling design pressures up to 3,000 psig inlet and constructed from ASTM A479 Type 316L stainless steel for hydrogen compatibility. The company's SLR-1 and SLR-2 Self-Loading Regulator valves, combining a DA4 pressure-reducing regulator with a Cashco P1 or Fairchild Model 10 pilot regulator, are specifically marketed for hydrogen gas, natural gas, and sour gas (NACE) applications, with the SLR-2 variant designed so cover dome pressure bleeds back into the main valve outlet rather than to atmosphere -- a key safety feature for hydrogen containment. Cashco's broader tank blanketing valves, back pressure regulators, and pressure vacuum relief products (expanded through its acquisition of 3B Controls) are applicable to hydrogen storage tank protection and vapor control needs.

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