The cut-off valve type, the internal leakage is not allowed.

对于截断阀类来说，内漏是不允许的。

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The advantages and features of using Red Valve Type A Valves are obvious.

采用美国红阀公司A型夹管阀的优点很明显。

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Standard duty cycles are listed for each valve type and are upgradeable to extended cycles as indicated.

每种阀门类型中列出的标准工作循环都可以升级成所示的更大的循环。

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These valves use a screw type valve instead of a simple flap, and they have a pressure regulating mechanism that will vent water to the ground if the intake pressure exceeds a set level.

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Another type of tissue valve replacement that uses your own pulmonary valve (autograft) is sometimes possible.

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