The butterfly valve is also called the flap valve, and it is a simple regulating valve adopting a turbine wafer. Butterfly valves that can be used for low pressure pipeline medium switch control refers to the closing piece (disc or disc) for the disc, rotating around the valve shaft to open and close. It can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media. It mainly plays the role of cutting off and throttling on the pipeline.
