單向閥
簡介
單向閥是流體只能沿進水口流動，出水口介質卻無法回流，俗稱單向閥。
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料管路上。
安裝止回閥時，應特別注意介質流動方向，應使介質正常流動方向與閥體上指 示
的箭頭方向相一致，否則就會截斷介質的正常流動。底閥應安裝在水泵吸水管路的底端。
止回閥關閉時，會在管路中產生水錘壓力，嚴重時會導致 閥門、管路或設備的損
壞，尤其對于大口管路或高壓管路，故應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備上流體介質逆流的單向啟閉閥。

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