Pneumatic Non Return Valves | 10Mm & 8Mm | RS
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    Pneumatic Non-Return Valves

    Pneumatic non-return valves are one of the simplest types of pneumatic valves available. They allow compressed air to flow in one direction and prevent or block it from flowing in the opposite direction. Also known as a check valve these simple but effective devices help to eliminate any potential damage that may be caused by backflow pressure. RS offer a range of high-quality valves from leading brands including Festo, SMC, Legris, Norgren and of course RS PRO.

    How does a Pneumatic Non-Return Valve Work?

    Non-return valves work automatically, which means that most valves don’t need human intervention external control to work. The valves will have two openings or ports, an inlet and an outlet port. An internal spring will lift when the pressure upstream is great enough to overcome the tension of the spring. This is referred to as the ‘cracking pressure’.

    What is Cracking Pressure?

    Cracking pressure refers to the minimum pressure differential needed between the inlet and outlet of the valve at which the first indication of flow occurs. When cracking pressure is reached, the valve will open to allow flow, when it drops the valve will close.

    What are the different types of Pneumatic Non-return valve?

    Pneumatic non-return valves are available in two main types. Push in tube-to-tube or Push-in tube to threaded.

    Tube-to-Tube Non Return Valves

    This type of non-return valve will have a push-in connection port at either end. They are available with different body materials, including brass and aluminium. Hose sizes ranging from 4 mm to 12 mm

    Tube to Threaded Non Return Valves

    This type of non-return valve will have a tube connection on one end and a threaded connection on the other. They are available with different body materials including brass and aluminium. Hose sizes ranging from 4 mm to 12 mm. Threads are typically BSPP (G), BSPT (R), NPT, and Metric.

    174 產品顯示為 Pneumatic Non-Return Valves

    Festo
    4mm
    Tube
    -
    Threaded
    -
    HGL
    -
    -
    -
    -
    -
    -
    -
    -
    SMC
    12mm
    Tube
    R 3/8 Male
    Threaded
    -
    AKH
    R 3/8
    -
    -
    -
    -
    -
    -
    -
    Festo
    5mm
    Threaded
    M5
    Threaded
    5mm
    ISV
    M5 Female
    -
    Male
    -0.95bar
    0 bar
    +60°C
    Female
    -
    Festo
    -
    Threaded
    -
    Threaded
    -
    H
    -
    -
    -
    0.4bar
    8 bar
    +60°C
    -
    -
    Festo
    -
    Threaded
    -
    Tube
    8mm
    HA
    -
    -
    -
    -
    -
    -
    -
    -
    SMC
    -
    Threaded
    NPT 1/4 Female
    Threaded
    -
    AK
    NPT 1/4 Female
    0.02MPa
    Female
    0.02MPa
    1 MPa
    +60°C
    Female
    1/4
    Festo
    6mm
    Tube
    -
    Threaded
    R1/4
    HB-1/4-QS-6
    R 1/4 Male
    -
    -
    -1bar
    10 bar
    +60°C
    Male
    -
    SMC
    -
    Threaded
    R 1/8 Male
    Tube
    4mm
    AKH
    -
    -
    -
    -
    -
    -
    -
    -
    SMC
    4mm
    Tube
    -
    Threaded
    -
    AKH
    R 1/8 Male
    0.005MPa
    -
    -100kPa
    1.5 MPa, 1 MPa
    +60°C
    Male
    -
    Festo
    12mm
    Threaded
    -
    Threaded
    R1/2
    HB-1/2-QS-12
    -
    -
    -
    -
    -
    -
    -
    -
    Festo
    8mm
    Tube
    -
    Threaded
    R1/8
    HB-1/8-QS-8
    R 1/8 Male
    -
    -
    -1bar
    10 bar
    +60°C
    Male
    -
    SMC
    10mm
    Tube
    -
    Tube
    10mm
    AKH
    -
    0.005MPa
    -
    -100kPa
    1 MPa
    +60°C
    -
    -
    Festo
    4mm
    Threaded
    -
    Threaded
    4mm
    ISV
    -
    -
    -
    -
    -
    -
    -
    -
    Festo
    12mm
    Tube
    -
    Tube
    12mm
    H
    -
    -
    -
    -
    -
    -
    -
    -
    Festo
    12mm
    Tube
    -
    Threaded
    -
    HB
    -
    -
    -
    -
    -
    -
    -
    -
    Legris
    12mm
    Tube
    -
    Tube
    12mm
    7996
    -
    -
    -
    1bar
    10 bar
    +70°C
    -
    -
    SMC
    3/8in
    Threaded
    1/4 in
    Threaded
    -
    AKH/AKB
    R 3/8
    -
    -
    -
    -
    -
    -
    -
    Norgren
    4mm
    Tube
    -
    Tube
    10.5mm
    C00GL
    -
    -
    -
    -
    -
    -
    -
    -
    SMC
    12mm
    Threaded
    M5
    Tube
    12mm
    AKH
    M5 Male
    -
    -
    -
    -
    -
    -
    -
    Parker
    -
    -
    -
    -
    8mm
    EO Light
    -
    -
    -
    -
    -
    -
    -
    -
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