For example, pneumatic butterfly valves can be divided into four types according to their structural forms: offset plate type, vertical plate type, inclined plate type and lever type. According to the sealing form, it can be divided into soft sealing type and hard sealing type. The soft seal is rubber ring seal, and the hard seal is metal ring seal. According to the connection form, it can be divided into flange connection and wafer connection. The transmission mode can be divided into manual, gear transmission, pneumatic, hydraulic and electric. 　　　　

Relevant information What role can the pneumatic switch ball valve play in the work? How to select electric three-way ball valve? The comprehensive selection of electric on-off butterfly valve with high cost performance is guaranteed in many aspects. How to install and debug the valve body and cylinder of pneumatic on-off butterfly valve