Reversed flow is stopped or held in "check" by fluid backflow pressure which seats the closure device against the valve body.

倒流的流体通过倒流的流体压力将止回关闭装置与阀体紧密密封，从而实现阻止倒流的“止回”功能。

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The check valve comprises a resilient disc held in place and biased closed by the tensile stress of the check valve material.

该止回阀包括被止回阀材料的张应力保持到位并且偏压成被关闭的弹性圆盘。

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High-pressure fluid is held by the check valve.

高压流体是由止回阀。

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