Parker Hannifin RH4 Series Hydraulically Pilot Operated Check Valves

The hydraulically pilot operated check valves series RH for in-line mounting are proven components of Parker's check valve product range which ensure a leak-free blocking of the flow and thus a reliable operation. They allow free flow in one direction (B to A), the counter flow is blocked (A to B). By applying pilot pressure the ball can be lifted from its seat and allows flow from A to B.

RH4 Series

117 items

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  • Parker RH4 Series Relief Valve
    4M4F-RH4A-VT-SS-K2-C3

    Parker Hannifin

    Product Type: Plug Valves

    End 1 Type: MNPT

    End 2 Type: FNPT

    Parker RH4 Series Rotary Plug Valve, 1/4" Male NPT, 1/4" Female NPT, RH4A Valve Series, Fluorocarbon Rubber Seal, PTFE Back-up Ring, Stainless Steel Body, Automatically Operated.
    Qty in Cart: 0
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  • Parker RH4 Series Relief Valve
    4M4F-RH4A-VT-SS-K2

    Parker Hannifin

    Product Type: Plug Valves

    End 1 Type: MNPT

    End 2 Type: FNPT

    Parker RH4 Series Rotary Plug Valve, 1/4" Male NPT, 1/4" Female NPT, RH4A Valve Series, Fluorocarbon Rubber Seal, PTFE Back-up Ring, Stainless Steel Body, Automatically Operated.
    Qty in Cart: 0
    Price:
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  • Parker RH4 Series Relief Valve
    4M4F-RH4A-VT-SS

    Parker Hannifin

    Product Type: Plug Valves

    End 1 Type: MNPT

    End 2 Type: FNPT

    Parker RH4 Series Rotary Plug Valve, 1/4" Male NPT, 1/4" Female NPT, RH4A Valve Series, Fluorocarbon Rubber Seal, PTFE Back-up Ring, Stainless Steel Body, Automatically Operated.
    Qty in Cart: 0
    Price:
    Subtotal:
  • Parker A-LOK RH4 Series Relief Valve
    4M4A-RH4A-VT-SS-K7

    Parker Hannifin

    Product Type: Plug Valves

    End 1 Type: MNPT

    End 2 Type: Double Ferrule Compression

    Parker A-LOK RH4 Series Rotary Plug Valve, 1/4" Male NPT, 1/4" A-LOK® Compression, RH4A 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 RH4 Series Relief Valve
    4M4A-RH4A-VT-SS-K6-C3

    Parker Hannifin

    Product Type: Plug Valves

    End 1 Type: MNPT

    End 2 Type: Double Ferrule Compression

    Parker A-LOK RH4 Series Rotary Plug Valve, 1/4" Male NPT, 1/4" A-LOK® Compression, RH4A Valve Series, Fluorocarbon Rubber Seal, PTFE Back-up Ring, Stainless Steel Body, Automatically Operated.
    Qty in Cart: 0
    Price:
    Subtotal:
  • Parker A-LOK RH4 Series Relief Valve
    4M4A-RH4A-VT-SS-K6

    Parker Hannifin

    Product Type: Plug Valves

    End 1 Type: MNPT

    End 2 Type: Double Ferrule Compression

    Parker A-LOK RH4 Series Rotary Plug Valve, 1/4" Male NPT, 1/4" A-LOK® Compression, RH4A Valve Series, Fluorocarbon Rubber Seal, PTFE Back-up Ring, Stainless Steel Body, Automatically Operated.
    Qty in Cart: 0
    Price:
    Subtotal:
  • Parker A-LOK RH4 Series Relief Valve
    4M4A-RH4A-VT-SS-K5-C3

    Parker Hannifin

    Product Type: Plug Valves

    End 1 Type: MNPT

    End 2 Type: Double Ferrule Compression

    Parker A-LOK RH4 Series Rotary Plug Valve, 1/4" Male NPT, 1/4" A-LOK® Compression, RH4A Valve Series, Fluorocarbon Rubber Seal, PTFE Back-up Ring, Stainless Steel Body, Automatically Operated.
    Qty in Cart: 0
    Price:
    Subtotal:
  • Parker A-LOK RH4 Series Relief Valve
    4M4A-RH4A-VT-SS-K5

    Parker Hannifin

    Product Type: Plug Valves

    End 1 Type: MNPT

    End 2 Type: Double Ferrule Compression

    Parker A-LOK RH4 Series Rotary Plug Valve, 1/4" Male NPT, 1/4" A-LOK® Compression, RH4A Valve Series, Fluorocarbon Rubber Seal, PTFE Back-up Ring, Stainless Steel Body, Automatically Operated.
    Qty in Cart: 0
    Price:
    Subtotal:
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