This paper summaries the structure principle and design points of underwaterpump davit.
该文对水下泵吊放装置的机构原理及设计要点作概要介绍。
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Bottom valve is a energy saving valve, usually installed in the straw at the bottom of the underwaterpump. Limit the liquid return pipe water pump, plays not only into the function.
Submersible pump in order to prevent the work in the underwater leakage accidents caused by electric shock should be equipped with residual current protection switches.