High-efficiency electric submersible pumps for raising waste water. Expressly designed for pumping residential and industrial waste, in drainage lifting stations and treatment plants. Single- and multi-channel hydraulics or with retracted open impeller, ideal to convey liquids with high concentrations of solids. Impellers with anti-clogging device, double mechanical seal for motor protection with oil chamber and conductivity probe. High efficiency motors, also with forced cooling system for use in a dry chamber. A modern and professional range to ensure the best results in cutting running and maintenance costs in residential and industrial treatment systems. Also available in an explosion proof version conforming to ATEX II 2G Exd IIB T4.