LW series vertical non-clogging sewage pump is a pump product successfully developed based on the characteristics of domestic water pumps. It has the characteristics of excellent energy saving effect, anti-winding, non-clogging, automatic installation and automatic control. It has a unique effect in discharging solid particles and long-fiber waste. Compared with the traditional impeller, the impeller adopts the form of single flow channel or double flow channel. It is similar to a curved pipe with the same cross-section and has very good flow capacity. With a reasonable volute chamber, the pump has high efficiency, The impeller is tested by dynamic and static balance, and the sewage pump is automatically stirred so that the pump has no vibration during operation.