... saving. Non-clog design, suitable for water with solid and fiber. Cooling jacket for 18.5kw and ... clog, auto-coupling, hi-reliability and auto-control Pump adopts cooling jacket for power bigger than 18.5kW ... engineering, industry, hospital, hotel for pumping sludge, sewage and city life sewage Rated voltage: 380V (660V) Frequency: 50Hz, ... to keep the optimum operation conditions submersible sewage pump