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樓控用球閥

偏心半球閥工作原理

發布日期:2022-04-17 點擊率:81

偏心半球閥工作原理

 

偏心半球閥工作原理:

    偏心半球閥由于采用機械凸輪原理,閥門關閉件從開啟時到關閉的過程中,作用在閥門密封面上的密封力是逐漸增加的,即關閉件表面與閥座由完全脫離到接觸,是逐漸增大密封比壓直至完全密封,反之亦然。這就大大改善了以往傳統球閥的密封狀態和密封效果;因此具有調節性能好,流通能力大,密封性能優,使用壽命長等特點。

 

偏心半球閥在外觀結構上分為兩種:

1、上裝式偏心半球閥:主要沖蝕磨損非常嚴重的介質,上裝結構在被損啟閉件的更換維修是非常方便,無須將整臺閥門從管道上拆下,大大的節省了維修時間和成本。

2、側裝式偏心半球閥:側裝式結構緊湊、閥門質量輕,適用于對閥門安裝空間有要求的場合。

 

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