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Pneumatic Check Valve



Pneumatic Check Valve is a directional control valve in which the airflow can only flow in one direction and cannot flow in the opposite direction. Its working principle is the same as hydraulic check valve. Compressed air enters from the air inlet to overcome the spring force and friction to open the Pneumatic Check Valve port, compressed air flows from P to A; when the P port has no compressed air, under the action of spring force and residual air force of A port; the valve port is in a closed state so that the flow from A to P is blocked. The Pneumatic Check Valve is used in the situation that the air flow is not allowed to flow backward, for example, when the air compressor inflates the air tank, a Pneumatic Check Valve is arranged between the air compressor and the air tank, when the air compressor stops working, the compressed air in the air tank can be prevented from flowing back to the air compressor. The Pneumatic Check Valve is often combined with throttle valve and sequence valve to form one-way throttle valve and one-way sequence valve to be used.
  • Pneumatic Check Valve AKH

    AKH One Way Check Valve of check valves are available in a variety of configurations to provide designers with a variety of solutions according to the operating conditions. 

    Port Size: M5,PT1/8,PT1/4,PT3/8,PT1/2
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  • Metal Pneumatic Check Valve AKB

    The AKB Metal Check Valve with One Touch Fitting is a quick coupling for air piping and pneumatic tools. It can be used to connect or disconnect pipes without tools.

    Port Size: PT1/8,PT1/4,PT3/8,PT1/2
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  • Pneumatic Check Valve CV

    CV Pneumatic Check Valve are one-way valves with high flow, zero leakage and low pressure drop, suitable for most fluid and gas applications. The fully guided lift valve with a free floating O-ring can tolerate particulate contamination very well.

    Port Size: G1/8,G1/4,G3/8,G1/2;
    Proof Pressure: 1.5MPa;
    Working Environment Temperature: 0~70℃
    Material: Copper,NBR
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  • High Pressure Check Valve LCV

    LCV Pneumatic Check Valve Nominal pressure range: 0.15, 1, 3 8 Psig (0.01, 0.07, 0.21 0.55 bar);

    Port Size: G1/8,G1/4,G3/8,G1/2,G3/4,G1;
    Proof Pressure: 15kgf/cm²;
    Working Environment Temperature: -5~60℃
    Material: Aluminum,NBR
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  • Quick Exhaust Valve SEU

    SEU Quick Exhaust Valve is suitable for the pipeline where the industrial medium is water. As a device for quickly removing the gas in the pipeline, it is an essential equipment for the pipeline to improve the efficiency of the water conveyance equipment and protect the pipeline from deformation and cracking. 

    Port Size: G1/2;
    Proof Pressure: 15kgf/cm²
    Working Environment Temperature: -5~60℃
    Material: Aluminum Alloy
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  • Pneumatic Quick Exhaust Valve BQE

    BQE Pneumatic Quick Exhaust Valve is a one-way control valve, the medium can only flow in one direction through the valve. The valve has reasonable design, simple structure, beautiful appearance and wide application.

    Port Size: PT1/8,PT1/4,PT3/8,PT1/2;
    Proof Pressure: 1.0-1.5MPa
    Working Environment Temperature: 0~70℃
    Material: Copper
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  • Shuttle Valve KV

    KV Pneumatic Shuttle Valve is equivalent to two check valves. It has two input ports and one output port. In the pneumatic system, it can be used in both the execution loop and the control loop to make a logical "or". effect.

    Port Size: G1/8,G1/4,G3/8,G1/2,G3/4,G1
    Proof Pressure: 0.9~1.5MPa
    Working Environment Temperature: -5~60℃
    Material: Aluminum Alloy
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  • Quick Exhaust Air Valve QE/VQE

    QE Quick Exhaust Air Valve(Pneumatic Check Valve) is a single-phase auxiliary component, which can quickly discharge the compressed air that has been used in the system. Generally arranged between the cylinder and the reversing valve, so that the gas in the cylinder is not discharged quickly through the reversing valve.

    Port Size: G1/8,G1/4,G3/8,G1/2
    Proof Pressure: 0.8~1.0MPa
    Working Environment Temperature: 0~70℃
    Material: Aluminum Alloy
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