Finally, Dad turned off the stove, the pot began to cool and the pressure relief valve sprayed out a cloud of steam.

最后，爸爸关上了炉子，锅开始降温，然后解压阀喷出了一股水汽。

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3 SEC The PORV (pressure relief valve) opens automatically, releasing steam into a holding tank.

3秒减压阀自动打开，将蒸汽释入一个储存罐。

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Unique, modulating action pilot operated relief valve with soft seats having the ability to handle hot water, steam, hot hydrocarbon vapors or liquids, using inert plastic soft goods.

独特，调节先导救济行动与有能力处理好热水，蒸汽，热水的碳氢化合物蒸气或液体，使用惰性塑料软商品软座椅阀。

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