氣動(dòng)蝶閥既可以作為調(diào)節(jié)閥，也可以作為開關(guān)閥。它主要由氣動(dòng)執(zhí)行器和蝶閥組成，蝶板圍繞閥桿旋轉(zhuǎn)來實(shí)現(xiàn)開啟與關(guān)閉。根據(jù)不同的應(yīng)用需求，氣動(dòng)蝶閥可以設(shè)計(jì)成具有調(diào)節(jié)功能，通過改變閥門開度來調(diào)節(jié)介質(zhì)流量，或者作為截?cái)嚅y使用，即完全開啟或關(guān)閉介質(zhì)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(dòng)蝶閥的特點(diǎn)包括：

　　The characteristics of pneumatic butterfly valves include:

　　結(jié)構(gòu)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(zhuǎn)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(shí)，蝶板厚度是介質(zhì)流經(jīng)閥體時(shí)單一的阻力，產(chǎn)生的壓力降很??；

　　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(jù)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(dòng)蝶閥廣泛應(yīng)用于石油、煤氣、化工、水處理等工業(yè)領(lǐng)域，以及熱電站的冷卻水系統(tǒng)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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