手動翻板式三桿蝶閥引進技術，廣泛適用于建材、玻璃、礦山、電力、輕工、造紙等行業的能源輸送管道的煤氣、天然氣、通風、環保工程等管道系統中。對管道中氣體介質按不同控制信號調節流量大小和切斷。

  This valve is widely used in the pipe system transporting coal gas, natural gas, venting and environment protection in building material, glass, mining, power, light industry and papermaking departments. The technique is introduced from foreign Company. It can change the flow and cut off gas medium in the pipe by the different control signal.

結構特點：

Structure characteristic:

  手動翻板式三桿蝶閥具有結構、耐磨損、流阻損失小、密封性強、自鎖性可靠、操作靈活、指示方位明確、維護方便、密封面無磨損、使用壽命長等優點，尤其傳動軸部分采用外部密封，易調整、易更換無需停機，從而有效地杜絕外漏。采用多種密封形式能適應不同的介質，特別適用于調節切斷和要求快速自保的場合。配用蝸輪傳動裝置，可實現啟閉操作，是調節流量的理想設備。

  The valve has the features of compact structure, endurance, little in the lost of flow resistance, good seal, reliable self-locking, flexible operation, definite direction, easy to maintenance and long life. The seal of driving shaft is out seal, which is easy to be adjusted and changed without stopping, so the out leakage is avoided effectively. All kinds of seal type can suit different medium. It is especially suitable in the condition of adjusting, cutting off and self-protecting quickly. The valve is used with worm gear driving device to form a complete set to realize open-close operation. It is the ideal equipment of adjusting flow.

性能參數：

Performance parameter:

D344 X H---0.5C外形連接尺寸：

Appearance joint dimensions: