氣動O型切斷球閥具有流通能力大(dà)、結構緊湊、密封性能好、 壽命長(zhǎng)等特點，經濟實用、易于維護。廣泛應用于石油、化工、 天然氣、電(diàn)力、冶金、食品、制(zhì)藥等要求嚴密切斷的場(chǎng)合，也可 适(shì)用于水、蒸汽、油品、液化氣、天然氣、煤氣等介質。另外可 根據客戶的需求選擇防火型、特殊硬化處理型，提供更安全、更 廣泛的(de)應用。 

The pneumatic O-type cut-off ball valve is characterized by large circulation capacity， compact structure， good sealing performance and long service life， which is also economical， practical and easy to maintain.It is widely used in situations required strict cut-off including petroleum， chemical industry， natural gas， electric power， metallurgy， food and pharmaceutical， and also suitable for water， steam， oils， li que fed gas， natural gas， coal gas and other media.In addition， it can also be fre-proof and special hardening treatment according to the needs of customers to provide safer and more extensive applications.