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    3" Pneumatic Globe Valve

    Hot sale 3 inch pneumatic globe valve! Suitable for gases and liquids, flange connection, with pneumatic membrane actuator, DC24V solenoid valve, limit switch and air filtering pressure reducing valve. The pneumatic valve can accept the signal from the regulating instrument to realize the automatic control of parameters such as pressure, flow, temperature or liquid level. High performance ensures reliable operation of industrial processes.
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    Delivery date: 6-12 days

    High-precision 3-inch pneumatic membrane shut-off valve, the valve body structure is single-seated, packing seal sealing form, the pressure class is PN16, nominal diameter range DN80mm, applicable fluid temperature from -60 ~ 450 ℃. Leakage level Ⅵ, flow characteristics for fast open. Balanced valve inner parts, improve the permissible differential pressure of the globe valve.


    • Top-guided construction with multi-spring membrane actuator.
    • Compact structure, light weight, sensitive action, fluid channel is S streamline, small pressure drop loss, large capacity, easy disassembly and installation.
    • By using a thin-film multi-spring actuator connected to the adjusting mechanism by three columns, the overall height can be reduced by about 30 per cent and the weight by about 30 per cent. The overall height can be reduced by about 30 per cent and the weight by about 30 per cent.
    • The valve body is designed according to the principle of fluid dynamics into an equal cross-section low flow resistance flow path, the rated flow coefficient increases by 30%.


    Model ATO-810D-1S2A-4DK41-DN80
    Nominal pressure PN16 MPa
    Rated Flow Coefficient 120 KV
    Rated Stroke 20mm
    Film Effective Area 400 cm2
    Allowable Pressure Difference Positive Action 0.99
    Opposite Reaction 1.32
    Signal pressure 0 or 250
    Operating Temperature ≤ 250℃
    Connection Method Flangeless
    Medium of use Gas and Liquid
    Valve Body Material 304

    Dimension (Unit: mm)

    3/4 inch diaphragm control valve size

    DN A L H H1
    80 308 310 490 100


     Pneumatic globe valve application

    Tips: What Should I Do If My Pneumatic Globe Valve Suddenly Doesn't Work?

    Pneumatic globe valve suddenly not working can be caused by a variety of reasons. First, check if the air supply is normal and make sure the pneumatic actuator gets enough air pressure. Check whether the air supply connection, pressure regulator and other parts are working properly. Second, check whether the connection between the valve body and the valve cover is tight to prevent air leakage.

    If the above is normal, check whether the pneumatic globe valve spool is contaminated or stuck, you can clean the spool and its surrounding. At the same time, check the control system to ensure that the signal transmission is normal. If the problem remains unresolved, it is recommended to seek professional maintenance personnel for overhaul, which may require more in-depth maintenance and troubleshooting to ensure the normal operation of the pneumatic shut-off valve.

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