为了防止泵的损坏，必须在泵的排出管到吸入管之间安装安全阀。
In order to prevent damage to the pump must pump discharge pipe into the suction pipe installed between the safety valve.
泵壳上的液体排出口8与排出管9连接。
Shell pumps up liquid outlet 8 connected with the discharge tube 9.
泵壳上的液体排出口8与排出管9连接。
Shell pumps up liquid outlet 8 connected with the discharge tube 9.
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