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.
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。
2
Import import trap or trap is known for the steam pipe network and devices, can automatically discharge condensate, air and other non-condensing gas, and blocking water vapor leak valve.