Butterfly valve, also known as flap valve, is a simple regulating valve. It can be used in low pressure pipeline. The butterfly valve with switch control is a closed valve (disc or butterfly plate), which is opened and closed by rotating around the valve shaft.Valves can be used to control all kinds of fluids such as air, water, steam, corrosive media, mud, oil, liquid metal and radioactive medium. The main function of the pipe is cut off and throttling. The opening and closing of the butterfly valve is a disc shaped butterfly plate, which revolves around its own axis in the valve body so as to achieve the purpose of opening and closing or adjusting.
