The WQ series non-clogging submersible sewage pump is a new generation of pump products developed on the basis of introducing advanced foreign technology and combining the usage characteristics of domestic water pumps. It features significant energy-saving effects, anti-clogging, anti-wrapping, automatic installation, and automatic control, and has unique effectiveness in discharging solid particles and long-fiber debris. This series of pumps adopts a unique impeller structure and a new mechanical seal, enabling efficient transportation of solids and long fibers. Compared with traditional impellers, the impeller of this pump adopts a single or double flow channel design, which resembles a bent pipe with a consistent cross-sectional size, providing excellent flow characteristics. Combined with a rationally designed volute, the pump achieves high efficiency. The impeller undergoes balance testing to ensure vibration-free operation during use.