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如何對閘閥進行檢修?工藝方法是什么?

發布時間:2019-11-29 15:48     來源:行業新聞

閘閥的閥體內有一平板閥頭與流體流動方向垂直,通過加于閘板兩側的壓力差把閘板壓向閥座的一側,而起到截斷流體的作用,平板閥頭升起時閥即開啟。清掃全部零件;檢查閥體和閥蓋有無裂紋、縮孔、夾渣及沖刷腐蝕等缺陷。檢查閥座和閘板的密封面是否光滑,有無裂紋、坑點及沖蝕溝痕。并應用研磨工具對閥座和閘板的密封面分別進行研磨,研磨后,需用紅丹粉檢查兩密封面的接觸情況。 

閘閥

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