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    您當前位置:網站首頁 >> 產品中心 >> 配套閥門系列 >> 減壓閥
    • 減壓閥
    • 減壓閥
    • 減壓閥
    • 減壓閥

    目錄

    減壓閥是一種自動降低管路工作壓力的專門裝置,它可將閥前管路較高的水壓減少至閥后管路所需的水平。減壓閥廣泛用于高層建筑、城市給水管網水壓過高的區域、礦井及其他場合,以保證給水系統中各用水點獲得適當的服務水壓和流量。鑒于水的漏失率和浪費程度幾乎同給水系統的水壓大小成正比,因此減壓閥具有改善系統運行工況和潛在節水作用,據統計其節水效果約為30%。
    減壓閥的構造類型很多,以往常見的有薄膜式
    減壓閥、內彈簧活塞式減壓閥等。減壓閥的基本作用原理是靠閥內流道對水流的局部阻力降低水壓,水壓降的范圍由連接閥瓣的薄膜或活塞兩側的進出口水壓差自動調節。近年來又出現一些新型減壓閥,如定比式減壓閥,其構造原理如圖14.2-2所示。定比減壓原理是利用閥體中浮動活塞的水壓比控制,進出口端減壓比與進出口側活塞面積比成反比。這種減壓閥工作平穩無振動;閥體內無彈簧,故無彈簧銹蝕、金屬疲勞失效之慮;密封性能良好不滲漏,因而既減動壓(水流動時)又減靜壓(流量為0時);特別是在減壓的同時不影響水流量。
    減壓閥通常有DN50~DN100等多種規格,閥前、后的工作壓力分別為<1MPa和0.1~0.5MPa,調壓范圍誤差為±5%~10%。

    Yk43X/F/Y型先導活塞式氣體減壓閥
    Yk43X/F/Y型先導活塞式氣體減壓閥
    Y44H波紋管減壓閥
    Y44H波紋管減壓閥
    SY42AX煤礦專用減壓閥
    SY42AX煤礦專用減壓閥
    Y43X固定比例式減壓閥
    Y43X固定比例式減壓閥
    Y45H/Y-64.Y45H/Y-100杠桿式蒸汽減壓閥
    Y45H/Y-64.Y45H/Y-100杠桿式蒸汽減壓閥
    YD43H先導式超大膜片高靈敏度減壓閥
    YD43H先導式超大膜片高靈敏度減壓閥
    Yt11H加大薄膜型高靈敏度減壓閥
    Yt11H加大薄膜型高靈敏度減壓閥
    YZ11X直接作用薄膜式支管式減壓閥
    YZ11X直接作用薄膜式支管式減壓閥
    (200P)型水用減壓閥
    (200P)型水用減壓閥
    Y13H/Y內螺紋活塞式蒸汽減壓閥
    Y13H/Y內螺紋活塞式蒸汽減壓閥
    Y42X型彈簧薄膜式減壓閥
    Y42X型彈簧薄膜式減壓閥
    YGa43H/Y高靈敏度大流量蒸汽減壓閥
    YGa43H/Y高靈敏度大流量蒸汽減壓閥
    YG13H/Y型內螺紋高靈敏度蒸汽減壓閥
    YG13H/Y型內螺紋高靈敏度蒸汽減壓閥
    YG43H/Y型高靈敏度蒸汽減壓閥
    YG43H/Y型高靈敏度蒸汽減壓閥
    Y43H/Y型活塞式蒸汽減壓閥
    Y43H/Y型活塞式蒸汽減壓閥

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