電動法蘭截止閥是一種比較新型的閘閥類別，它有著自身結構所*的一些*性，如開關無摩擦，密封不易磨損，啟閉力矩小。

電動法蘭截止閥產品優(yōu)點：
　　1． 流體阻力小，其阻力系數與同長度的管段相等。
        2． 結構簡單、體積小、重量輕。
　　3． 緊密可靠，目前閘閥的密封面材料廣泛使用塑料、密封性好，在真空系統(tǒng)中也已廣泛使用。
　　4． 操作方便，開閉迅速，從全開到全關只要旋轉90°，便于遠距離的控制。
　　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，球體和閥座的密封面與介質隔離，介質通過時，不會引起閥門密封面的侵蝕。
　　7． 適用范圍廣，通徑從小到幾毫米，大到幾米，從高真空至高壓力都可應用。
工作原理
　　電動截止閥,美標閘閥的工作原理是靠旋轉閥戀來使閥門暢通或閉塞。閘閥開關輕便，體積小，可以做成很大口徑，密封可靠，結構 簡單，維修方便，密封面與球面常在閉合狀態(tài)，不易被介質沖蝕，在各行業(yè)得到廣泛的應用。
電動截止閥在管路中主要用來做切斷、分配和改變介質的流動方向。
電動法蘭截止閥廣泛適用于石油化工、城市給排水等要求嚴格切斷的工況。

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