The company produces fluorine lined flange butterfly valve is in accordance with the applicable temperature of minus 29 degrees Celsius to 120 degrees Celsius, the applicable medium of strong acids and alkalis, in the pipeline system to do the starting and closing device, and can ensure that under the working pressure, there is a good sealing performance. The company launched the lining butterfly valve according to the connection is divided into: clamp connection, flange connection. According to the main body material can be divided into carbon steel lined butterfly valve, stainless steel lined butterfly valve. Lining materials include: PTFE, FEP, PFA and so on. Such valves can be controlled manually, pneumatically, electrically, hydraulically and other driving devices to achieve remote control and automated operation.