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, with internal, sealed, active circulation cooling and heat exchanger, double
mechanical shaft seal in EMU block design as well as separate sealing chamber. The motor chamber and sealing chamber are
filled with medical white oil.
Motor sealing at the shaft by a double, wear-resistant mechanical shaft seal independent of the direction on rotation entirely
made of silicon-carbide as closed unit, in EMU sealing cartridge of stainless steel with intermediate separation chamber. Both
seals are cooled and lubricated by medical white oil. The motor chamber is equipped with a terminal board. The motor is
equipped with two maintenance-free ball bearings.
The upper bearing is filled with high-quality grease, the lower bearing is oil-lubricated. Possibility for retrofitting a moisture
probe by means of a pencil electrode for protection against penetrading humidity. All casing parts are of cast iron.
Shaft and connecting elements are of stainless steel. The motor is suitable for continuous operation (S1) under full load in
immerged and completely emerged condition.
