氣動蝶閥既可以作為調節閥，也可以作為開關閥。它主要由氣動執行器和蝶閥組成，蝶板圍繞閥桿旋轉來實現開啟與關閉。根據不同的應用需求，氣動蝶閥可以設計成具有調節功能，通過改變閥門開度來調節介質流量，或者作為截斷閥使用，即完全開啟或關閉介質通道。

　　Pneumatic butterfly valves can be used as both regulating valves and switching valves. It is mainly composed of pneumatic actuators and butterfly valves, with the butterfly plate rotating around the valve stem to achieve opening and closing. According to different application requirements, pneumatic butterfly valves can be designed with regulating functions to adjust the medium flow rate by changing the valve opening, or used as shut-off valves to fully open or close the medium channel.

　　氣動蝶閥的特點包括：

　　The characteristics of pneumatic butterfly valves include:

　　結構簡單、體積小、重量輕；

　　Simple structure, small size, and light weight;

　　操作方便，通常只需旋轉90°即可快速啟閉；

　　Easy to operate, usually only need to rotate 90 ° to quickly open and close;

　　良好的流體控制特性，蝶閥處于完全開啟位置時，蝶板厚度是介質流經閥體時單一的阻力，產生的壓力降很小；

　　Good fluid control characteristics, when the butterfly valve is in the fully open position, the thickness of the butterfly plate is a single resistance when the medium flows through the valve body, resulting in a small pressure drop;

　　可以根據不同的密封要求選擇合適的密封型式，如彈性密封或金屬密封。

　　Suitable sealing types can be selected according to different sealing requirements, such as elastic seals or metal seals.

　　氣動蝶閥廣泛應用于石油、煤氣、化工、水處理等工業領域，以及熱電站的冷卻水系統等

　　Pneumatic butterfly valves are widely used in industrial fields such as petroleum, gas, chemical, water treatment, as well as cooling water systems in thermal power plants

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