單球式止回閥-節能梭式止回閥-球型止回閥

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單球式止回閥
單球式止回閥可用于冷水、熱水、工業及生活污水等管網的水泵出口，防止介質倒流。為了防止介質逆流，在設備、裝置和管道上都應安裝止回閥。

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HQ41X滑道滾球式止回閥
HQ41X滑道滾球式止回閥可在閥體的整體式滑道上作上下滾動,從而打開或關閉閥門,密封性能好,消聲式關閉,不產生水錘.

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