Check Valves

Valin supplies a wide selection of dependable, high-quality check valves, in a variety of materials, end connections and seals engineered for a diverse range of applications requiring backflow prevention, elimination and protection.

Check Valves

1734 items

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  • 4M4F-CO4L-25-BN-SS CO Series Check Valve
    4M4F-CO4L-25-BN-SS Parker IVD CO Series Check Valve
    4M4F-CO4L-25-BN-SS

    Parker Hannifin

    Product Type: Check Valves

    End 1 Type: Male NPT

    End 2 Type: Female NPT

    Parker IVD CO Series Check Valve, O-Ring Poppet Valve, 1/4 in. Male NPT x 1/4 in. Female NPT Inlet & Outlet (Port 1 & 2), 25 psi Cracking Pressure, Nitrile Seat, 316 Stainless Steel Body, 6000 psig CWP, 0.62 Cv Max, -30 to 250 F Deg Temperature Rating.
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  • 4M4F-CO4L-1-KZ-SS CO Series Check Valve
    4M4F-CO4L-1-KZ-SS Parker IVD CO Series Check Valve
    4M4F-CO4L-1-KZ-SS

    Parker Hannifin

    Product Type: Check Valves

    End 1 Type: Male NPT

    End 2 Type: Female NPT

    Parker IVD CO Series Check Valve, O-Ring Poppet Valve, 1/4 in. Male NPT x 1/4 in. Female NPT Inlet & Outlet (Port 1 & 2), 1 psi Cracking Pressure, Highly Fluorinated Fluorocarbon Rubber Seat, 316 Stainless Steel Body, 6000 psig CWP, 0.62 Cv Max, -15 to...
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  • 4F-CO4L-50-BN-SS CO Series Check Valve
    4F-CO4L-50-BN-SS Parker IVD CO Series Check Valve
    4F-CO4L-50-BN-SS

    Parker Hannifin

    Product Type: Check Valves

    End 1 Type: Female NPT

    End 2 Type: Female NPT

    Parker IVD CO Series Check Valve, O-Ring Poppet Valve, 1/4 in. Female NPT Inlet & Outlet (Port 1 & 2), 50 psi Cracking Pressure, Nitrile Seat, 316 Stainless Steel Body, 6000 psig CWP, 0.62 Cv Max, -30 to 250 F Deg Temperature Rating.
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  • 4F-CO4L-25-BN-SS CO Series Check Valve
    4F-CO4L-25-BN-SS Parker IVD CO Series Check Valve
    4F-CO4L-25-BN-SS

    Parker Hannifin

    Product Type: Check Valves

    End 1 Type: Female NPT

    End 2 Type: Female NPT

    Parker IVD CO Series Check Valve, O-Ring Poppet Valve, 1/4 in. Female NPT Inlet & Outlet (Port 1 & 2), 25 psi Cracking Pressure, Nitrile Seat, 316 Stainless Steel Body, 6000 psig CWP, 0.62 Cv Max, -30 to 250 F Deg Temperature Rating.
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  • 4F-CO4L-1/3-KZ-SS CO Series Check Valve
    4F-CO4L-1/3-KZ-SS Parker IVD CO Series Check Valve
    4F-CO4L-1/3-KZ-SS

    Parker Hannifin

    Product Type: Check Valves

    End 1 Type: Female NPT

    End 2 Type: Female NPT

    Parker IVD CO Series Check Valve, O-Ring Poppet Valve, 1/4 in. Female NPT Inlet & Outlet (Port 1 & 2), 1/3 psi Cracking Pressure, Highly Fluorinated Fluorocarbon Rubber Seat, 316 Stainless Steel Body, 6000 psig CWP, 0.62 Cv Max, -15 to 200 F Deg...
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  • 6MP7-MACL-20-V-SS Parker Autoclave MAC Series O-Ring Check Valve
    6MP7-MACL-20-V-SS Parker Autoclave MAC Series O-Ring Check Valve
    6MP7-MACL-20-V-SS

    Autoclave (Parker Hannifin)

    Product Type: Check Valves

    Parker Autoclave MAC Series O-Ring Check Valve, 15,000 psi, 0.84 Cv, 3/8" MPI, 400 Deg F Max Operating Temperature, Fluorocarbon Rubber.
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  • CXO9900-HYG Parker Autoclave Medium Pressure O-Ring Check Valve
    CXO9900-HYG Parker Autoclave Medium Pressure O-Ring Check Valve
    CXO9900-HYG

    Autoclave (Parker Hannifin)

    Product Type: Check Valves

    Parker Autoclave Medium Pressure O-Ring Check Valve, SF562CX Medium Pressure, 20,000 psi, 2.30 Cv, Hydrogen/Helim Upgrade/Seat Testing.
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  • SWO2200-TO Parker Autoclave Low Pressure O-Ring Check Valve
    SWO2200-TO Parker Autoclave Low Pressure O-Ring Check Valve
    SWO2200-TO

    Autoclave (Parker Hannifin)

    Product Type: Check Valves

    Parker Autoclave Low Pressure O-Ring Check Valve, 15,000 psi Pressure Rating, Fits W125 Connection Type, 0.094 Orifice, 0.15 Cv, TFE.
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