China's electronics industry, defense industry, science and technology have been rapid and abnormal development. To this end, ultra-high vacuum technology has also been widely used. GI series high vacuum butterfly valve is used to connect or disconnect the vacuum hose in the airflow. High vacuum butterfly valve applicable medium is air and non-corrosive gases. High vacuum butterfly valve can be divided according to the Transmission: manual, gear transmission, pneumatic, hydraulic and electric are several. China's electronic industry in recent two years, more and more pressing need for ultra-high vacuum equipment, already in progress the development of ultra-high vacuum equipment, such as ultra-high vacuum coating and exhaust, as well as the scientific research required for ultra-high vacuum system and so on. These exhaust systems need a set of baking in addition to the gas stop valve. 

 The main technical performance of high vacuum butterfly valve