Submersible pumps with one impeller (vortex type). GQS series pumps with vertical feed pipe with threaded sockets (G 2"). GQV pumps with horizontal feed pipe with threaded sockets G 2" and flanged sockets DN 50. These pumps are used for domestic and industrial wastewater that is not aggressive to the pump's construction materials, as well as for dirty liquids, including those with solid foreign bodies up to 50 mm in diameter, liquids compatible with the pump's materials.