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    D641W Type Pneumatic Ventilation Butterfly Valve

    D641W Type Pneumatic Ventilation Butterfly Valve

    Product Category:BUTTERFLY VALVE
    Product Name:D641W Type Pneumatic Ventilation Butterfly Valve
    Product Tag:Pneumatic Ventilation Butterfly Valves
    Update Date:2021/8/21 22:31:15

    Note: Our Products Can Be Customized According To Customers' Needs. In Addition To National Standards,We Can Design And Manufacture According To American Standards, Japanese Standards, German Standards, Russian Standards, British Standards And So On.

    D641W pneumatic ventilating butterfly valve adopts the sealing ring made of the same material as the valve body. The applicable temperature of the valve depends on the material selection of the valve body, generally within the range of -29℃~425℃, the nominal pressure is less than 0.6MPa, and the diameter is 50mm. Between ~1200mm, pneumatic ventilating butterfly valve is generally suitable for gas, dusty gas, flue gas and other pipelines for ventilation and adjustment of medium flow. The main features of the pneumatic ventilating butterfly valve are novel and reasonable design, special structure, light weight, and rapid opening and closing. The operating torque is small, the operation is convenient, and the operation is flexible and labor-saving. The valve adopts appropriate materials to meet the needs of low, medium and high medium temperature and corrosive medium pipelines.

    Pneumatic ventilation butterfly valves are used in dusty cold or hot air pipelines for ventilation and environmental protection projects in chemical, building materials, power stations, glass and other industries, as a pipeline control device for gas medium to adjust flow or cut off. This type of valve should generally be installed horizontally in the pipeline.

    Butterfly valve is a regulating valve with simple structure, and it can also be used for on-off control of low-pressure pipeline media. Ventilation butterfly valve is a non-closed butterfly valve.

    Structural features

    1. It is designed and manufactured with a new structure welded by a midline butterfly plate and a short structure steel plate. It is compact in structure, light in weight, easy to install, small in flow resistance, large in circulation, avoids the influence of high temperature expansion, and is easy to operate.

    2. There are no connecting rods, bolts, etc., so it works reliably and has a long service life. It can be installed in multiple stations and is not affected by the flow direction of the medium

    Ventilation butterfly valve is a kind of non-closed butterfly valve, which is widely used in the production process of building materials, metallurgy, mining, electric power and other production processes on pipelines with a medium temperature of ≤300℃ and a nominal pressure of 0.1Mpa to communicate, open and close or adjust the flow of the medium.


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