1、 The application of electric switch butterfly valve The electric switch butterfly valve is an item that has developed very rapidly in recent years and is sold by many well-known enterprises in China. Because of the continuous improvement of science and technology, electric switch ball valve has been used in various fields to play its role. With the continuous development of electric butterfly valves, more and more advanced equipment and more and more complete services, electric on-off butterfly valves have a very important position in the field of automatic control. Now the metallurgical industry and shipbuilding industry can not do without the electric switch butterfly valve, which is used as the control part. In addition, there are electric butterfly valves in textile industry, petrochemical industry, pharmaceutical industry and other fields. 　　

In principle, the pressure of one process chamber can control the input of regulating gas. Although this method is applicable to a variety of applications, increasingly demanding semiconductor processes require control of gas flow and pressure of mutually independent processes.