Submersible pumps suitable for pumping dirty water, pre-treated sewage, activated sludge and clarified waste water from both private and commercial dwellings, in accordance with European standard EN 12050-1. It has an open, two-blade, cast-iron channel impeller, making it suitable for use with dirty liquids containing solids free of long fibres with a tendency to lint. Ideal where a high flow rate is required. Double cartridge mechanical seal as standard in SiC/SiC silicon carbide on the hydraulics side and SiC/C silicon carbide on the motor side, independent of the rotation direction. Discharge flange available in DN65, DN80, DN100 versions according to EN 1092-1. High efficiency three-phase asynchronous motor with squirrel cage rotor, efficiency class IE3. Suitable for use with liquids with pH between 6.5 and 12. Maximum number of starts per hour: 20. S1 motor for fully submerged continuous operation or S3 for discontinuous operation with minimum immersion levels. Water infiltration sensor in oil chamber, capable of indicating water infiltrations through the mechanical seal (Optional). Overtemperature sensors in the motor windings with intervention threshold at 150°C. Long-life lubricated bearings for a calculated minimum useful life of 50,000 hours. Stainless steel motor shaft, designed with high fatigue strength. Nominal power from 1.1 kW to 11 kW. ATEX version available for use in potentially explosive environments. Maximum installation depth: 20 metres (with cable of appropriate length). For use at liquid temperatures above +40°C, please contact the sales office.