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防爆及防水電磁閥的安裝方法

更新時間:2021-07-02   點擊次數:2906次

        安裝防爆電磁閥前,要特別注意電磁閥安裝場合的爆炸物是否與閥所帶說明書規定一致。安裝時要注意保護好防爆體上的防爆面,拆裝時切忌磕碰、劃傷,裝配好的防爆面要涂上黃油,以防生銹。緊固件要擰緊,不得松動。引線的連接與安裝必須嚴格遵守在含有爆炸性混合物場所電氣安裝的有關規定。引線用三芯電纜,其中一根用于接地,無論電壓高低,外殼必須接地。有的防爆閥內外兩處接地,必須同時接上,不得省略。電纜的外徑應與密封圈的內徑相當,太細密封不嚴,太粗電纜無法穿入。

        防水電磁閥電磁頭是密封起來的,與防爆電磁閥在外形上有所相似,安裝時要注意他們的區別,千萬不能搞錯。聚四氟乙烯塑料電磁閥防腐性能好,但機械性能差,接管時切不可用力過猛,以防損壞螺紋口。




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