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    12" Pneumatic Wafer Butterfly Valve

    Large diameter 12 inch pneumatic actuated wafer type butterfly valve for sale at factory price, 300mm (DN300) threaded port, equipped with double acting pneumatic actuator. Industrial air operated butterfly valve has cast iron body, EPDM seat and stainless steel disc, working pressure PN16, working temp -10 °C to 120 °C, high performance and reliable.
    SKU: ATO-PBV-300
    30-day Returns
    Free Shipping
    Delivery date: 6-12 days

    Heavy duty large diameter 12 inch wafer type butterfly valve with pneumatic actuator, comes with 300mm (DN300) threaded port and stainless steel disc. Our high performance air actuated cast iron butterfly valve can work at high temperature below 120 °C, which is a reliable air tool for flow control.


    Butterfly Valve Model ATO-PBV-300
    Media Water, Air, Gas, Oil, Liquid, etc.
    Butterfly Valve Type Wafer Type
    Port Size 12 inch (DN300, 300mm)
    Body Material Cast Iron
    Seat Material EPDM
    Disc Material Stainless Steel (SS)
    Working Temperature -10 °C to 120 °C
    Pneumatic Actuator Model ATO-AT160D
    Actuator Type Double Acting
    Bore Size 160mm
    Air Pressure 0.25 - 0.8MPa, PN16
    Pressure Difference 0 - 1.0MPa
    Air Supply Port 1/4 inch
    Actuator Material Aluminum Alloy

    Wafer Butterfly Valve Body Dimension (Unit: mm)

    Body dimensions of pneumatic actuated wafer type butterfly valve

    DN L H1 H2 A D D1 N-φd
    300 77 242 577 450 407 370 4-29

    Pneumatic Actuator Dimension (Unit: mm)

    Pneumatic actuator dimension


    Q A B C D E F G H I
    Φ102/Φ125mm 450mm 193mm 89mm 104mm 226mm 197mm 30mm 80mm PF
    J K O P S T U V W X
    M6 1/4" 30mm 80mm 4mm 4mm 12mm 24mm 16mm 32mm

    Tips for installing a pneumatic butterfly valve

    • Before installation, check whether all parts of the pneumatic butterfly valve are missing. Check for debris in the valve body, blockage in the solenoid valve and muffler.
    • Put the valve and cylinder in the closed state.
    • Install the cylinder on the valve (the installation direction can be parallel or perpendicular to the valve body), and then check whether the screw holes are aligned. There will not be much deviation. If there is a little deviation, just turn the cylinder body a little. , and then tighten the screws.
    • After the installation is completed, debug the pneumatic butterfly valve.
    • It should be kept dry before installation and cannot be stored in the open air.
    • Before installing the butterfly valve, check the pipeline to ensure that there is no foreign matter such as welding slag in the pipeline
    • Open the butterfly valve completely, and use a wrench to tighten the bolts in diagonal order without washer. Do not over-tighten the bolts to prevent serious deformation of the valve ring and excessive opening and closing torque.
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