This is a robust single stage centrifugal pump for pumping fluids containing solids. CombiDirt is also capable of handling gaseous liquids and media requiring self-priming conditions. This pump uses vortex technology with open impellers to prevent clogging. The flanges is according to ISO 7005 PN16. ATEX and Self priming option is available. The impeller has back vanes to sweep solids away from the shaft sealing area. Maintenance is easy with a back pull out. The seal is single and unbalanced mechanical seal to EN 12756 (DIN 24960). Other seal options are quenched shaft seal or gland packing. This is a dry shaft design where the pumped liquid is not in contact with the shaft. The shaft is carried with a double row contact thrust bearing and cylindrical roller bearing.