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

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  • Parker RL4A Series Relief Valve
    4M-RH4A-VT-SS-K1 Parker Relief Valve
    4M-RH4A-VT-SS-K1

    Parker Hannifin

    Product Type: Relief Valves

    Parker RH4A Series Relief Valve, 1/4" x 1/4", MPT x MPT, 6000 PSIG CWP/50 to 350 PSIG Cracking, 316 Stainless Steel, Fluorocarbon Rubber Seal, Adjustable Pressure, Angle, Relief Valve.
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  • Parker RL4A Series Relief Valve
    4M4F-RH4A-VT-SS-MN-K3 Parker Relief Valve
    4M4F-RH4A-VT-SS-MN-K3

    Parker Hannifin

    Product Type: Relief Valves

    Parker RH4A Series Relief Valve, 1/4" x 1/4", MPT x FPT, 6000 PSIG CWP/750 to 1500 PSIG Cracking, 316 Stainless Steel, Fluorocarbon Rubber Seal, Manual Overdrive Handle, Adjustable Pressure, Angle, Relief Valve.
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  • Parker RL4A Series Relief Valve
    4M4F-RH4A-KZT-SS-K1 Parker Relief Valve
    4M4F-RH4A-KZT-SS-K1

    Parker Hannifin

    Product Type: Relief Valves

    Parker RH4A Series Relief Valve, 1/4" x 1/4", MPT x FPT, 6000 PSIG CWP/50 to 350 PSIG Cracking, 316 Stainless Steel, Highly Fluorinated Fluorocarbon Rubber Seal, Adjustable Pressure, Angle, Relief Valve.
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  • Parker RL4A Series Relief Valve
    4M4F-RH4A-KZT-SS Parker Relief Valve
    4M4F-RH4A-KZT-SS

    Parker Hannifin

    Product Type: Relief Valves

    Parker RH4A Series Relief Valve, 1/4" x 1/4", MPT x FPT, 6000 PSIG CWP, 316 Stainless Steel, Highly Fluorinated Fluorocarbon Rubber Seal, Adjustable Pressure, Angle, Relief Valve.
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  • Parker RL4A Series Relief Valve
    4M-RH4A-VT-SS-K4 Parker Relief Valve
    4M-RH4A-VT-SS-K4

    Parker Hannifin

    Product Type: Relief Valves

    Parker RH4A Series Relief Valve, 1/4" x 1/4", MPT x MPT, 6000 PSIG CWP/1500 to 2250 PSIG Cracking, 316 Stainless Steel, Fluorocarbon Rubber Seal, Adjustable Pressure, Angle, Relief Valve.
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  • Parker RL4A Series Relief Valve
    4F-RH4A-VT-SS-K4 Parker Relief Valve
    4F-RH4A-VT-SS-K4

    Parker Hannifin

    Product Type: Relief Valves

    Parker RH4A Series Relief Valve, 1/4" x 1/4", FPT x FPT, 6000 PSIG CWP/1500 to 2250 PSIG Cracking, 316 Stainless Steel, Fluorocarbon Rubber Seal, Adjustable Pressure, Angle, Relief Valve.
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  • Parker RL4A Series Relief Valve
    4M4F-RH4A-VT-SS-K5-C3 Parker Relief Valve
    4M4F-RH4A-VT-SS-K5-C3

    Parker Hannifin

    Product Type: Relief Valves

    Parker RH4A Series Relief Valve, 1/4" x 1/4", MPT x FPT, 6000 PSIG CWP/2250 to 3000 PSIG Cracking, 316 Stainless Steel, Fluorocarbon Rubber Seal, Adjustable Pressure, Angle, Relief Valve for Oxygen Service.
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  • Parker RL4A Series Relief Valve
    4M-RH4A-VT-SS-K5 Parker Relief Valve
    4M-RH4A-VT-SS-K5

    Parker Hannifin

    Product Type: Relief Valves

    Parker RH4A Series Relief Valve, 1/4" x 1/4", MPT x MPT, 6000 PSIG CWP/2250 to 3000 PSIG Cracking, 316 Stainless Steel, Fluorocarbon Rubber Seal, Adjustable Pressure, Angle, Relief Valve.
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