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Butterfly valve working principle; Applicable range of butterfly valve

2022-10-25
    Butterfly valve is a disc type opening and closing parts reciprocating around 90° to open, close or adjust the medium flow of a valve. Butterfly valve is not only simple structure, small volume, light weight, material consumption, small installation size, small driving torque, simple operation, rapid, and can also have a good flow regulation function and closed sealing characteristics, is one of the fastest growing valve varieties in recent ten years. Butterfly valves are widely used. The variety and quantity of its use are still continuing to expand, and to high temperature, high pressure, large caliber, high sealing, long life, excellent regulating characteristics, as well as a multi-function valve development. Its reliability and other performance indexes have reached a high level.
    Butterfly valves can evolve into electric butterfly valves, pneumatic butterfly valves, hydraulic butterfly valves and electro-hydraulic butterfly valves when configured with different actuators.
    The range of application of butterfly valve
    Butterfly valves are suitable for flow regulation. Due to the pressure loss of butterfly valve in the pipeline is relatively large, it should also consider the robustness of the butterfly plate under the pressure of pipeline medium when closed. In addition, it is also necessary to consider the limits of the operating temperature of the resilient seat material at high temperatures. Butterfly valve structure length and overall height is small, open and close fast, and has good fluid control characteristics, butterfly valve structure principle is most suitable for the production of large caliber valve. When the butterfly valve is required to control the flow, the most important thing is to correctly choose the size and type of butterfly valve, so that it can work properly and effectively.
    Butterfly valve also has an important feature: suitable for large size valve.
    In addition, butterfly valve can also be used to do switch valve, cut off valve.
 
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