止回阀
止回阀又稱回流阀、止回阀、底阀或单向阀，是一种只允许流体（液体或气体）沿一个方向流过的閥門。[1]单向阀是双口阀，意味着它的阀体内有两个开口，一个供流体进入，另一个供流体离开。
参考文献
[编辑]- ^ Christopher., Dickenson, T. Valves, piping, and pipelines handbook 3rd. Oxford, UK: Elsevier Advanced Technology. 1999. ISBN 9781856172523. OCLC 41137607.
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