Pneumatic butterfly valve has good two-way sealing function, it is used in pipelines of different media in petroleum, chemical industry, metallurgy, electricity, food, medicine, water supply and drainage, gas transportation and so on, it is the best device for regulating flow, cutting off or connecting fluid.

Choices of different materials can be separately applied to water, sewage, seawater, air, steam, gas, flammable gas, corrosive media, oils, food and other media.