This WQLseries pump is complied with the national standard GB/T24674-2009 with multiple usages. It can be used under any seriously bad work conditions for waste water or muddy water. The structure is downdraft, and the motor is submersiblethree-phase asynchronous motor.
WQL downdraft waste water pump is formed by 3-phase submersible motorand the waste water pump. The pump is connected to the motor directly. In order to maintain a large flow rate, the pump is specially designed to prevent blockage. A mechanical seal is installed between the motor and the pump, so that the drainage medium will not mix with motor cooling liquid. The winding wire is made from water proof cable and covered by nylon piece. For oil-filled motor, the motor chamber is filled with #10 machine oil or #25 transformer oil (not fully filled but to submerge the upper bearing when the pump is vertical standing). A cooling cover is installed outside the pump so that the pump can work for a long time normally in a dry condition. In order to avoid the breakdown of the pump due to a too high motor chamber pressure, a safety valve is installed on the motor body. This will ensure a long service time for the motor.
Work Conditions:
Power supply: 3 phase AC power; Frequency: 50Hz; Voltage: 380V/660V (tolerance ±5%).
The solid ratio in the medium should be less than 2% (volume ratio).
The maximum density of the medium should not exceed 1.2x103kg/m3.
Medium temperature should be less than 40℃.
Medium pH value should be 4-10. |
