Submersible sewage pump as floodable, single-stage block unit in stationary, vertical installation for pumping of untreated sewage, which attacks the pumps neither chemically nor mechanically. Pump with radially arranged discharge piece and axial pump intake. Service-friendly unit structure by separated motor and pump housing unit. The duty values must be guaranteed according to ISO 9906, class 2B.
Submersible motor in pressure-resistant design, double mechanical shaft seal in EMU block design, as well as separate sealing
chamber with medical white oil. Motor chamber dry. Sealing of the motor at the shaft by a double, wear-resistant mechanical
shaft seal independent of the direction of rotation entirely made of silicon-carbide as closed unit, in stainless steel sealing
cartridge. Both seals in the sealing cartridge are cooled and lubricated by medical white oil.Power supply cable and control
cable with longitudinally tight cable trumpet, cores embedded in casting resin and soldered strands as additional protection
against penetrating humidity by capillary action. Protection of the motor winding by thermistors installed. Both closed ball
bearings are maintenance-free and filled with high-quality-grease. Possibility for retrofitting a moisture probe by means of a
pencil electrode as protection against penetrating humidity. All casing parts are of cast iron. Shaft and connecting elements
are of stainless steel.
