Parker Hannifin RL4 Series Relief Valves

Parker RL4 Relief Valves are designed such that when the upstream pressure exceeds the closing force exerted by the spring, the lower stem opens, permitting flow through the valve. Flow through the valve increases proportionately to the increase in upstream pressure.

RL4 Series

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  • Parker RL4A Series Relief Valve
    4M4Z-RL4A-BNT-SS-KC Parker Relief Valve
    4M4Z-RL4A-BNT-SS-KC

    Parker Hannifin

    Product Type: Relief Valves

    Parker RL4A Series Relief Valve, 1/4" x 1/4", MPT x CPI Single Ferrule Compression, 400 PSIG CWP/50 to 100 PSIG Cracking, 316 Stainless Steel, Nitrile Rubber Seal, Adjustable Pressure, Angle, Relief Valve.
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  • Parker RL4A Series Relief Valve
    8A-RL4A-VT-SS-KC Parker Relief Valve
    8A-RL4A-VT-SS-KC

    Parker Hannifin

    Product Type: Relief Valves

    Parker RL4A Series Relief Valve, 1/2" x 1/2", A-LOK Double Ferrule Compression x A-LOK Double Ferrule Compression, 400 PSIG CWP/50 to 100 PSIG Cracking, 316 Stainless Steel, Fluorocarbon Rubber Seal, Adjustable Pressure, Angle, Relief Valve.
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  • Parker RL4A Series Relief Valve
    4A-RL4A-EPRT-SS-KB Parker Relief Valve
    4A-RL4A-EPRT-SS-KB

    Parker Hannifin

    Product Type: Relief Valves

    Parker RL4A Series Relief Valve, 1/4" x 1/4", A-LOK Double Ferrule Compression x A-LOK Double Ferrule Compression, 400 PSIG CWP/25 to 50 PSIG Cracking, 316 Stainless Steel, Ethylene Propylene Rubber Seal, Adjustable Pressure, Angle, Relief Valve.
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  • Parker RL4A Series Relief Valve
    4M4F-RL4A-BNT-SS-KG Parker Relief Valve
    4M4F-RL4A-BNT-SS-KG

    Parker Hannifin

    Product Type: Relief Valves

    Parker RL4A Series Relief Valve, 1/4" x 1/4", MPT x FPT, 400 PSIG CWP/225 to 400 PSIG Cracking, 316 Stainless Steel, Nitrile Rubber Seal, Adjustable Pressure, Angle, Relief Valve.
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  • Parker RL4A Series Relief Valve
    4A-RL4A-BNT-SS-KB Parker Relief Valve
    4A-RL4A-BNT-SS-KB

    Parker Hannifin

    Product Type: Relief Valves

    Parker RL4A Series Relief Valve, 1/4" x 1/4", A-LOK Double Ferrule Compression x A-LOK Double Ferrule Compression, 400 PSIG CWP/25 to 50 PSIG Cracking, 316 Stainless Steel, Nitrile Rubber Seal, Adjustable Pressure, Angle, Relief Valve.
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  • Parker RL4A Series Relief Valve
    4A-RL4A-BNT-SS-KF Parker Relief Valve
    4A-RL4A-BNT-SS-KF

    Parker Hannifin

    Product Type: Relief Valves

    Parker RL4A Series Relief Valve, 1/4" x 1/4", A-LOK Double Ferrule Compression x A-LOK Double Ferrule Compression, 400 PSIG CWP/10 to 225 PSIG Cracking, 316 Stainless Steel, Nitrile Rubber Seal, Adjustable Pressure, Angle, Relief Valve.
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  • Parker RL4A Series Relief Valve
    M6A-RL4A-VT-SS-KA Parker Relief Valve
    M6A-RL4A-VT-SS-KA

    Parker Hannifin

    Product Type: Relief Valves

    Parker RL4A Series Relief Valve, 6 MM x 6 MM, A-LOK Double Ferrule Compression x A-LOK Double Ferrule Compression, 400 PSIG CWP/10 to 25 PSIG Cracking, 316 Stainless Steel, Fluorocarbon Rubber Seal, Adjustable Pressure, Angle, Relief Valve.
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  • Parker RL4A Series Relief Valve
    4Z-RL4A-BNT-SS-KB Parker Relief Valve
    4Z-RL4A-BNT-SS-KB

    Parker Hannifin

    Product Type: Relief Valves

    Parker RL4A Series Relief Valve, 1/4" x 1/4", CPI Single Ferrule Compression x CPI Single Ferrule Compression, 400 PSIG CWP/25 to 50 PSIG Cracking, 316 Stainless Steel, Nitrile Rubber Seal, Adjustable Pressure, Angle, Relief Valve.
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