氣動V型球閥VQ647H-16P在塗裝設備、表面處理設備中的運用-浙江博科閥門科技有限公司_hot电竞

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    您的位置:博科氣動閥門 >> 新聞中心 >> 氣動閥門知識 >> 氣動V型球閥VQ647H-16P在塗裝設備、表面處理設備中的運用 新聞中心

    氣動V型球閥VQ647H-16P在塗裝設備、表面處理設備中的運用

    [來源:原創] [作者:admin] [日期:15-11-02] [點擊:]

    氣動V型球閥VQ647H-16P在塗裝設備、表面處理設備中的運用
    氣動V型球閥VQ647H-16P是流體管路的控制裝置,其基本功能是接通、切斷、調整介質在管路中的流通狀态,改變介質的流動方向,調節介質的壓力和流量,使管路系統按照人的意志進行工作,并且維持管路和設備的正常運行。在塗裝設備中因為各種管道的大量使用,各種類型的閥門得到了廣泛的應用,管路系統越來越複雜,氣動球閥的使用數量也越來越多,這就要求塗裝設備的設計者必須了解各種閥門的特點,根據管路系統的要求配置合适的閥門。
    氣動球閥工作原理:利用球體繞閥杆的軸線旋轉。實現開啟和關閉的目的。球閥在管道上主要用于切斷、分配和改變介質流動方向,設計成V形開口的球閥還具有良好的流量調節功能。
    球閥優點:
    1)流體阻力小
    2)密封可靠。絕大多數球閥的閥座都采用聚四氟乙烯彈性體制造,在較大的壓力和溫度範圍内,能實現完全密封,工作介質在雙球面上密封可靠。
    3)耐腐蝕性好,壽命長。球閥最主要的閥座密封圈材料是聚四氟乙烯,它對幾乎所有的化學物質都有是惰性的,且具有摩擦因數小,性能穩定,不易老化,溫度适用範圍廣和密封性能優良的綜合性特點,在閥體采用不鏽鋼材料時,具有優良的耐腐蝕性。
    4)開關迅速方便,一般情況下隻需要旋轉手柄90°就可實現全關閉或全打開,實現快速啟閉,并且開啟力矩較小。
    5)應用廣泛。除一般介質外,還可輸送黏性流體、漿液以及固體顆粒。
    6)在全開和全閉時,球體和閥座的密封面與介質隔離,因此高速通過閥門的介質不會引起密封面的侵蝕。
    7)結構緊湊,重量輕,高度方向尺寸小,便于管道排布,是用于低溫介質系統的最合理的閥門結構。
    8)閥體對稱,能很好地承受來自管道的應力。
    9)球形關閉件能在邊界位置上自動定位,能承受關閉時的高壓差。
    球閥缺點:
    1)閥座密封圈主要材料是聚四氟乙烯,膨脹系數較高,耐溫等級較低,隻能在小于180°情況下使用。
    2)相比同口徑的其他種類閥門成本較高,是同口徑蝶閥價格的幾倍甚至數十倍,口徑越大,差價越大。
    3)調節性能相對于截止閥要差一些,尤其是氣動閥(或電動閥)。
     

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