供應Q341H法蘭金屬硬密球閥的詳細描述：

    球閥是一種重要的閥類，在石油化工、長輸管線等領域有廣泛應用。球閥的關閉件是一個帶孔的球體（或部分球），球體隨閥桿轉動，實現閥門的開啟或關閉。 　　在各種閥門中，球閥的流動阻力zui小，全徑球閥打開時，球體通道、閥體通道和連接管徑相等并成一直徑，介質幾乎可以毫無損失的流過。 　　球閥旋轉90°即可全關全開，啟閉迅速。與相同規(guī)格的閘閥、截止閥比較、球閥體積小、重量輕，便于管道安裝。

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