Parker Autoclave CPO Series Pipe O-Ring Check Valves

Provides unidirectional flow and tight shut-off for liquids and gas with high reliability. When differential drops below cracking pressure*, valve shuts off. (Not for use as relief valve).

Materials: 316 Stainless Steel: body, cover, poppet, cover gland. 300 Series Stainless Steel: spring Standard O-ring: Viton, for operation to 400° F (204°C). Buna-N or Teflon available for 250°F (121°C) or 400°F (204°C) respectively; specify when ordering.

*Cracking Pressure: 20 psi (1.38 bar) ±30%. Springs for higher cracking pressures (up to 100 psi (6.89 bar) available on special order for O-ring style check valves only.

Minimum operating temperature for standard o-ring check valves 0°F (-17.8°C).
Check Flow - water, GPM

CPO Series

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  • Parker CPO4400 O-Ring Check Valve

    Parker Hannifin

    Product Type: Check Valves

    Parker Instrumentation CPO Series O-Ring Check Valve, 1/4", NPT, 15000 PSI, 316 Stainless Steel, Polytetrafluoroethylene Seal, O-Ring Check Valve.
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