電動法蘭(lan) 截止閥廣泛適用於(yu) 石油化工，火力發電廠等油品、水蒸汽管路上作接通或截斷管路中介質的啟閉裝置。

電動截止閥的特點
　　
　　1．流體(ti) 阻力小，其阻力係數與(yu) 同長度的管段相等。
　　
　　2．結構簡單、體(ti) 積小、重量輕。電動截止閥
　　
　　3．緊密可靠，目前閘閥的密封麵材料廣泛使用塑料、密封性好，在真空係統中也已廣泛使用。
　　
　　4．操作方便，開閉迅速，從(cong) 全開到全關(guan) 隻要旋轉90°，便於(yu) 遠距離的控製。
　　
　　5．維修方便，閘閥結構簡單，密封圈一般都是活動的，拆卸更換都比較方便。
　　
　　6．在全開或全閉時，球體(ti) 和閥座的密封麵與(yu) 介質隔離，介質通過時，不會(hui) 引起閥門密封麵的侵蝕。
　　
　　7．適用範圍廣，通徑從(cong) 小到幾毫米，大到幾米，從(cong) 高真空至高壓力都可應用。

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