Submersible sewage pumps should be equipped with electric leakage protection and overheat or overload protection devices, as well as a sealed leakage device and a reliable grounding system.

No cavitation damage or water flooding issues exist. Especially the latter greatly facilitates the operation personnel.
5. Low vibration and noise, low motor temperature rise, and no environmental pollution.

I. Overview of WQ Type Submersible Non-Clog Sewage Pump:
The WQ type submersible non-clogging sewage pump is a new generation of pump products developed by combining domestic water pump characteristics with foreign technology. This series features discharge diameters of 50~600mm, flow rates of 10~7000m3/h, heads of 5~60m, power ratings of 1.5~315KW, and can handle solid particles with diameters of 20~145mm. This submersible sewage pump is energy-efficient and structurally innovative. Since its launch in the market, it has been welcomed and highly praised by users for its special, reliable quality. The non-clogging submersible pump has been chosen by many units as a substitute for imported products and is listed as a key import and digestion project by the National Mechanical Committee.
Wastewater pumps, with the pump and motor on the same shaft and a shorter shaft, have lightweight rotating parts, resulting in a relatively smaller load (radial) on the bearings, and thus a much longer lifespan compared to general pumps. There is no cavitation damage or problems with filling and leading water, especially the latter which greatly facilitates operators. The pumps have low vibration and noise, low motor temperature rise, and are environmentally friendly.