Manual Oil Pumps Valves 手摇油泵 ; 手摇油泵阀 ; 单闸板平板闸阀
Manual Control Pumps 手动控制泵
Imported Manual Oil Pumps Valves 进口手摇油泵阀
Manual pumps USES in under the system debugging and the special operating mode valve opens shuts.
手动泵用于系统调试和特殊工况下的阀门启闭。
By contrast, manual pumps have no pressure switch, and must be turned on manually (via an electric switch) prior to when the water is required.
相比之下，手动泵没有压力开关，当需要水的时候必须手动(通过一个电动开关)来开启。
Avoid using pumps in any other way than described in the respective manual!
避免使用泵按照其他说明书所描述的方式。
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