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

142 items

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  • Parker A-LOK RL4 Series Relief Valve
    4A-RL4A-VT-SS-KF

    Parker Hannifin

    Product Type: Plug Valves

    End 1 Type: Double Ferrule Compression

    End 2 Type: Double Ferrule Compression

    Parker A-LOK RL4 Series Rotary Plug Valve, 1/4" A-LOK® Compression, RL4A Valve Series, Fluorocarbon Rubber Seal, PTFE Back-up Ring, Stainless Steel Body, Automatically Operated.
    Qty in Cart: 0
    Price:
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  • Parker A-LOK RL4 Series Relief Valve
    4A-RL4A-VT-SS-KE-C3

    Parker Hannifin

    Product Type: Plug Valves

    End 1 Type: Double Ferrule Compression

    End 2 Type: Double Ferrule Compression

    Parker A-LOK RL4 Series Rotary Plug Valve, 1/4" A-LOK® Compression, RL4A Valve Series, Fluorocarbon Rubber Seal, PTFE Back-up Ring, Stainless Steel Body, Automatically Operated.
    Qty in Cart: 0
    Price:
    Subtotal:
  • Parker A-LOK RL4 Series Relief Valve
    4A-RL4A-VT-SS-KA-C3

    Parker Hannifin

    Product Type: Plug Valves

    End 1 Type: Double Ferrule Compression

    End 2 Type: Double Ferrule Compression

    Parker A-LOK RL4 Series Rotary Plug Valve, 1/4" A-LOK® Compression, RL4A Valve Series, Fluorocarbon Rubber Seal, PTFE Back-up Ring, Stainless Steel Body, Automatically Operated.
    Qty in Cart: 0
    Price:
    Subtotal:
  • Parker RL4 Series Relief Valve
    4M4F-RL4A-BNT-SS-KA

    Parker Hannifin

    Product Type: Plug Valves

    End 1 Type: MNPT

    End 2 Type: FNPT

    Parker RL4 Series Rotary Plug Valve, 1/4" Male NPT, 1/4" Female NPT, RL4A Valve Series, Buna-N Rubber Seal, PTFE Back-up Ring, Stainless Steel Body, Automatically Operated.
    Qty in Cart: 0
    Price:
    Subtotal:
  • Parker A-LOK RL4 Series Relief Valve
    4A-RL4A-BNT-SS-MN-KB

    Parker Hannifin

    Product Type: Plug Valves

    End 1 Type: Double Ferrule Compression

    End 2 Type: Double Ferrule Compression

    Parker A-LOK RL4 Series Rotary Plug Valve, 1/4" A-LOK® Compression, RL4A Valve Series, Buna-N Rubber Seal, PTFE Back-up Ring, Stainless Steel Body, Automatic with Manual Overide Operated.
    Qty in Cart: 0
    Price:
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  • Parker RL4 Series Relief Valve
    4M4F-RL4A-VT-SS-MN-KE

    Parker Hannifin

    Product Type: Plug Valves

    End 1 Type: MNPT

    End 2 Type: FNPT

    Parker RL4 Series Rotary Plug Valve, 1/4" Male NPT, 1/4" Female NPT, RL4A Valve Series, Fluorocarbon Rubber Seal, PTFE Back-up Ring, Stainless Steel Body, Automatic with Manual Overide Operated.
    Qty in Cart: 0
    Price:
    Subtotal:
  • Parker RL4A Series Relief Valve
    4M-RL4A-VT-SS-KA

    Parker Hannifin

    Product Type: Relief Valves

    Parker RL4A Series Relief Valve, 1/4" x 1/4", MPT x MPT, 400 PSIG CWP/10 to 25 PSIG Cracking, 316 Stainless Steel, Fluorocarbon Rubber Seal, Adjustable Pressure, Angle, Relief Valve.
    Qty in Cart: 0
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  • Parker RL4 Series Relief Valve
    4M4F-RL4A-VT-SS-KF

    Parker Hannifin

    Product Type: Plug Valves

    End 1 Type: MNPT

    End 2 Type: FNPT

    Parker RL4 Series Rotary Plug Valve, 1/4" Male NPT, 1/4" Female NPT, RL4A Valve Series, Fluorocarbon Rubber Seal, PTFE Back-up Ring, Stainless Steel Body, Automatically Operated.
    Qty in Cart: 0
    Price:
    Subtotal:
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