單向閥Z2S22-1-5X現(xiàn)貨特惠

單向閥是氣流只能一個方向流動而不能反向流動的方向控制閥。其工作原理與液壓單向閥一樣,。壓縮空氣從P口進入,，克服彈簧力和摩擦力使單向閥閥口開啟,，壓縮空氣從P流至A；當P口無壓縮空氣時,，在彈簧力和A口(腔)余氣力作用下,；閥口處于關(guān)閉狀 態(tài)，使從A至P氣流不通,。單向閥應(yīng)用于不允許氣流反向流動的場合,，如空壓機向氣罐充氣 時，在空壓機與氣罐之間設(shè)置一單向閥,，當空壓機停止工作時,，可防止氣罐中的壓縮空氣回流 到空壓機。單向閥還常與節(jié)流閥,、順序閥等組合成單向節(jié)流閥,、單向順序閥使用。

力士樂單向閥通過P口進入的壓縮空氣,，克服彈簧力和摩擦,，使閥口打開，壓縮空氣由P向A流動；當P口沒有壓縮空氣時,，由彈簧力和A口(腔)余氣力作用,；閥口處于關(guān)閉狀態(tài)，使A向P氣流不通,。

力士樂單向閥常與節(jié)流閥,、順序閥等結(jié)合在一起使用，稱為“單向順序閥",、“單向節(jié)流閥",。單項閥工作原理是用于不允許氣體反向流動的場合，例如,，當空壓機的氣罐被充氣時,，在空壓機和氣罐之間設(shè)置一個單向閥，當空壓機停止工作時,，可防止儲氣罐內(nèi)的壓縮空氣被吹入空壓機,。

單向閥就是止回閥 旋啟式止回閥安裝位置不受限制，通常安裝于水平管路,，但也可以安裝于垂直管路或傾斜管路上,。

注意事項

安裝止回閥時，應(yīng)特別注意介質(zhì)流動方向,，應(yīng)使介質(zhì)正常流動方向與閥體上指示的箭頭方向相一致,，否則就會截斷介質(zhì)的正常流動。底閥應(yīng)安裝在水泵吸水管路的底端,。

止回閥關(guān)閉時,，會在管路中產(chǎn)生水錘壓力，嚴重時會導(dǎo)致閥門,、管路或設(shè)備的損壞,，尤其對于大口管路或高壓管路，故應(yīng)引起止回閥選用者的高度注意,。

止回閥只供防止各類管路或設(shè)備上流體介質(zhì)逆流的單向啟閉閥,。

技術(shù)參數(shù)：

公稱通徑:21/16“~41/16“

工作壓力：2,000~15,000PSI

溫度：-60°C~+121°C(K,U)

產(chǎn)品規(guī)范級別：PSL3~4

產(chǎn)品性能級別：PR1~2

材料級別：AA~FF

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單向閥Z2S22-1-5X現(xiàn)貨特惠