High Quality China WQ Multi-stage Submersible Sewage Pump Manufacturers Max. Flow: 630m3/ h Max. Head: 44m Maximum liquid temperature: +40 C pH level from: 4-10 This series of WQ multi-stage submersible sewage pumps uses a new mechanical seal to efficiently transport solids and long fibers. The unique double-bladed impeller structure greatly enhances the ability of …