This trap is suitable for low temperature accompanying heat line pipe and working condition which needs low temperature to discharge frozen water. 该阀适用于低温伴热管线和需要低温排除凝结水的工况。
In this papen,the charactoristics of the density's observable change of the high temperature saturated water which is full flowing in the climbing water pipe are analysed. 本文分析了高温饱和水在满管流动的爬高过程中，其密度发生明显变化的动态机理，利用此动态特性，就实现低压高温凝结水无泵回收的可能性进行分析讨论。
