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 Co Series Check Valve
    8V-CO8L-1-V-SS Parker Check Valve
    8V-CO8L-1-V-SS

    Parker Hannifin

    Product Type: Check Valves

    Parker CO Series Check Valve, 1/2" x 1/2", VacuSeal x VacuSeal, 6000 PSIG CWP, 1 PSI Cracking, Stainless Steel Body, Fluorocarbon Rubber Seat/Seal, In-Line, Poppet, Check Valve.
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  • Parker Co Series Check Valve
    4A-CO4L-1/3-BN-SS Parker Check Valve
    4A-CO4L-1/3-BN-SS

    Parker Hannifin

    Product Type: Check Valves

    Parker CO Series Check Valve, 1/4" x 1/4", A-LOK Double Ferrule Compression x A-LOK Double Ferrule Compression, 6000 PSIG CWP, 1/3 PSI Cracking, Stainless Steel Body, Nitrile Rubber Seat/Seal, In-Line, Poppet, Check Valve.
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  • Parker Co Series Check Valve
    8F-CO8L-5-BN-SS Parker Check Valve
    8F-CO8L-5-BN-SS

    Parker Hannifin

    Product Type: Check Valves

    Parker CO Series Check Valve, 1/2" x 1/2", FPT x FPT, 6000 PSIG CWP, 5 PSI Cracking, Stainless Steel Body, Nitrile Rubber Seat/Seal, In-Line, Poppet, Check Valve.
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  • Parker Co Series Check Valve
    8M-CO8L-1-KZ-SS Parker Check Valve
    8M-CO8L-1-KZ-SS

    Parker Hannifin

    Product Type: Check Valves

    Parker CO Series Check Valve, 1/2" x 1/2", MPT x MPT, 6000 PSIG CWP, 1 PSI Cracking, Stainless Steel Body, Highly Fluorinated Fluorocarbon Rubber Seat/Seal, In-Line, Poppet, Check Valve.
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  • Parker Co Series Check Valve
    8Z-CO8L-1-BN-SS Parker Check Valve
    8Z-CO8L-1-BN-SS

    Parker Hannifin

    Product Type: Check Valves

    Parker CO Series Check Valve, 1/2" x 1/2", CPI Single Ferrule Compression x CPI Single Ferrule Compression, 6000 PSIG CWP, 1 PSI Cracking, Stainless Steel Body, Nitrile Rubber Seat/Seal, In-Line, Poppet, Check Valve.
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  • Parker Co Series Check Valve
    8A-CO8L-100-KZ-SS Parker Check Valve
    8A-CO8L-100-KZ-SS

    Parker Hannifin

    Product Type: Check Valves

    Parker CO Series Check Valve, 1/2" x 1/2", A-LOK Double Ferrule Compression x A-LOK Double Ferrule Compression, 6000 PSIG CWP, 100 PSI Cracking, Stainless Steel Body, Highly Fluorinated Fluorocarbon Rubber Seat/Seal, In-Line, Poppet, Check Valve.
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  • Parker Co Series Check Valve
    4A-CO4L-1-BN-SS Parker Check Valve
    4A-CO4L-1-BN-SS

    Parker Hannifin

    Product Type: Check Valves

    Parker CO Series Check Valve, 1/4" x 1/4", A-LOK Double Ferrule Compression x A-LOK Double Ferrule Compression, 6000 PSIG CWP, 1/3 PSI Cracking, Stainless Steel Body, Nitrile Rubber Seat/Seal, In-Line, Poppet, Check Valve.
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  • Parker A-LOK CO Series Check Valve
    8A-CO8L-1/3-KZ-SS Parker CO Series Check Valve
    8A-CO8L-1/3-KZ-SS

    Parker Hannifin

    Product Type: Check Valves

    End 1 Type: Double Ferrule Compression

    End 2 Type: Double Ferrule Compression

    Parker A-LOK CO-Series Check Valve, 1/2" A-LOK® Compression, 1/3 psig Crack Pressure, Highly Fluorinated Fluorocarbon Rubber Seat, 316 Stainless Steel Body.
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