进汽管选用先进的旋转接头密封，杜绝漏汽、漏水现象；

Steam inlet pipe is sealed with an advanced rotary joint without any steam and water leakage;

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当集水仓中的凝结水位升高时，小桶浮起直至再次封闭了进汽管，下一个循环周期开始。

When the water level of condensate in the drain sump goes up, the cup flows up until it shuts the admission pipe again, the following cycle starts.

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由于通往阀腔的进汽管被密封，凝结水从集水仓流经进水管进入阀腔，倒吊桶下沉，打开排水阀嘴，周期性的开始排水。

When the water level of condensate in the drain sump drops, the cup to shut the admission pipe falls down, the passage for steam to enter into the valve body is opened.

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