When cut off the water supply, because of the negative pressure in feed pipe, siphonage arises more easily. 停水时,因为供水管中的负压,虹吸现象更易产生。
Additionally, the whole wall rim above the users is a radiant wall to perform heating and cooling purposes through an integrated network of water tubes. 此外,整个墙环以上的用户是一个辐射壁履行供热和制冷的目的,通过一个集成的网络供水管。
Brief Statement on New Plastic Water Supply Pipe. 新型塑料给水管简述。
After analyzing the characteristics and application situation of the polyvinyl chlride waterpipe,the variation of the waterquality in the plastic water pipeis studied. 分析了我国塑料给水管的特点及应用现状,对聚氯乙烯塑料给水管中化学成分对水质的影响进行了研究。