Parker Hannifin CO Series Check Valves

Parker's CO Series Check Valves are designed for high integrity, leak proof systems with uni-directional flow control of critical fluids and gases up to 6,000 PSI (414 BAR). These inline check valves are suitable for instrumentation applications requiring high integrity leak rates and re-sealing capabilities.

CO Series

197 items

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  • Parker 8A-CO8L-1/3-V-SS
    8A-CO8L-1/3-V-SS Parker CO-Series O-Ring Poppet Check Valve
    8A-CO8L-1/3-V-SS

    Parker Hannifin

    Product Type: Check Valves

    End 1 Type: Double Ferrule Compression

    End 2 Type: Double Ferrule Compression

    Parker CO-Series O-Ring Poppet Check Valve, 316 SS body, 1/2" double ferrule tube fitting ends, 1/3 psig crack pressure, fluorocarbon rubber seal
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  • Parker 6Z-CO6L-5-V-SS
    6Z-CO6L-5-V-SS Parker CO Series O-Ring Poppet Check Valve
    6Z-CO6L-5-V-SS

    Parker Hannifin

    Product Type: Check Valves

    End 1 Type: Single Ferrule Compression

    End 2 Type: Single Ferrule Compression

    Parker CO-Series O-Ring Poppet Check Valve, 316 SS body, 3/8" single ferrule tube fitting ends, 5 psig crack pressure, fluorocarbon rubber seal
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  • Parker 6Z-CO6L-50-V-SS
    6Z-CO6L-50-V-SS Parker CO Series O-Ring Poppet Check Valve
    6Z-CO6L-50-V-SS

    Parker Hannifin

    Product Type: Check Valves

    End 1 Type: Single Ferrule Compression

    End 2 Type: Single Ferrule Compression

    Parker CO-Series O-Ring Poppet Check Valve, 316 SS body, 3/8" single ferrule tube fitting ends, 50 psig crack pressure, fluorocarbon rubber seal
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  • Parker 6Z-CO6L-25-V-SS
    6Z-CO6L-25-V-SS Parker CO Series O-Ring Poppet Check Valve
    6Z-CO6L-25-V-SS

    Parker Hannifin

    Product Type: Check Valves

    End 1 Type: Single Ferrule Compression

    End 2 Type: Single Ferrule Compression

    Parker CO-Series O-Ring Poppet Check Valve, 316 SS body, 3/8" single ferrule tube fitting ends, 25 psig crack pressure, fluorocarbon rubber seal
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  • Parker 6Z-CO6L-25-KZ-SS
    6Z-CO6L-25-KZ-SS Parker CO Series O-Ring Poppet Check Valve
    6Z-CO6L-25-KZ-SS

    Parker Hannifin

    Product Type: Check Valves

    End 1 Type: Single Ferrule Compression

    End 2 Type: Single Ferrule Compression

    Parker CO-Series O-Ring Poppet Check Valve, 316 SS body, 3/8" single ferrule tube fitting ends, 25 psig crack pressure, Kalrez seal
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  • Parker 6Z-CO6L-10-V-SS
    6Z-CO6L-10-V-SS Parker CO Series O-Ring Poppet Check Valve
    6Z-CO6L-10-V-SS

    Parker Hannifin

    Product Type: Check Valves

    End 1 Type: Single Ferrule Compression

    End 2 Type: Single Ferrule Compression

    Parker CO-Series O-Ring Poppet Check Valve, 316 SS body, 3/8" single ferrule tube fitting ends, 10 psig crack pressure, fluorocarbon rubber seal
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  • Parker 6Z-CO6L-10-KZ-SS
    6Z-CO6L-10-KZ-SS Parker CO Series O-Ring Poppet Check Valve
    6Z-CO6L-10-KZ-SS

    Parker Hannifin

    Product Type: Check Valves

    End 1 Type: Single Ferrule Compression

    End 2 Type: Single Ferrule Compression

    Parker CO-Series O-Ring Poppet Check Valve, 316 SS body, 3/8" single ferrule tube fitting ends, 10 psig crack pressure, Kalrez seal
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  • Parker CPI 6Z-CO6L-10-BN-SS
    6Z-CO6L-10-BN-SS Parker CO-Series O-Ring Poppet Check Valve
    6Z-CO6L-10-BN-SS

    Parker Hannifin

    Product Type: Check Valves

    End 1 Type: Single Ferrule Compression

    End 2 Type: Single Ferrule Compression

    Parker CPI CO-Series O-Ring Poppet Check Valve, 316 SS body, 3/8" single ferrule tube fitting ends, 10 psig crack pressure, Buna-N seal,
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