Circulatingwater pump inlet pipe and outlet pipe should also install pressure gauge.
循环水泵的进水管和出水管上也应装压力表。
2
The design and lectotype of circulating pump, automatic return water switch valve, expansion tank and atmospheric connection pipe in atmospheric hot water heating boiler room are discussed.
对常压热水供热锅炉房的循环泵、回水自动启闭阀、膨胀水箱、大气连通管的设计选型进行了探讨。
3
A circulatingpipe is connected with a washing water outlet and a washing water inlet on the washing drum.