Submersible sewage pump: Rexa SOLID-Q15-52
Motor type: FKT 20.2M-4/24G-P4
Type of impeller: Solid Q
Type of installation: Suspension device
VERSION
Fully submersible sewage pump for stationary and portable wet well installation for pumping wastewater, sewage containing faeces and untreated sewage, including with long-fibre constituents. Semi-open two-channel hydraulics with self-cleaning properties thanks to the retracted blade leading edge in conjunction with the relief groove in the adjustable suction port. Unit structure is easy to service due to split motor and pump housing unit. Hydraulics housing, impeller and motor housing of cast iron. The pumping values must be guaranteed in accordance with ISO 9906, Class 2B.
Synchronous permanent magnet submersible motor in pressure-tight design with water-glycol circulation cooling and additional, dry leakage chamber. Leakage monitoring via capacitive sensor with wiring inside the motor housing. Motor sealing at the shaft by two mechanical shaft seals SIC/SIC independent of the direction of rotation. The motor chamber is equipped with connecting terminals. Protection of the motor winding by thermistors installed. Optional temperature monitoring of both bearings. The two maintenance-free, closed ball bearings are filled with high-quality grease. All outside casing parts are made of cast iron, cooling shroud, shaft and connecting elements are made of stainless steel. The motor is suitable for continuous operation under full load (S1) in emerged and immerged condition. The electrical components correspond to the efficiency class IE4 according to IEC 60034-30-2:2016.
DESIGN OF THE ELECTRONICS MODULE
PUMP PART DATA
Type of impeller: Solid Q
Impeller diameter: 50 Hz
Free ball passage: 70 mm
Pressure port: DN150
Suction port: DN150
Possible operating modes:
WEIGHTS
Max. weight of the pump part: 100 kg
Weight of the motor: 210 kg
Max. weight of the unit: 310 kg
MATERIALS
Pump housing EN-GJL-250
Impeller EN-GJS-500-7
Suction ports EN-GJS-500-7
MOTOR DATA
Rated power: 15 kW
Power consumption of the motor at rated power: 16.6 kW
Current consumption of the motor at rated power: 30.14 A
Number of poles: 4
Rated speed: 1,500 1/min
Cos phi at rated power: 0.91
Cos phi at start:
Efficiency of the motor at rated power: 90.2 % %
Rated frequency: 50 Hz Hz
Operating mode (VDE 0530): S1
Max. fluid temperature: 40 °C
Starting current for direct starting: 30.5 A
Starting current for star-delta starting: 10.2 A
Starting torque: 95.5 Nm
Moment of inertia: 0.041 kg m²
Maximum switching frequency: 15
Motor connection line: 3X6/6KON S1BC4N8 + 2x2x22AWG+4×0,5 TECWATER
Maximum possible motor connection line: 4×10
DUTY POINT DATA
Volume flow:
Delivery head:
Power consumption of the pump at duty point (P2):
Pump efficiency at duty point: %
Power consumption of the motor at duty point (P1):
NPSH value of the pump at duty point:
Speed at duty point: 1500 1/min
Synchronous permanent magnet submersible motor in pressure-tight design with water-glycol circulation cooling and additional, dry leakage chamber. Leakage monitoring via capacitive sensor with wiring inside the motor housing. Motor sealing at the shaft by two mechanical shaft seals SIC/SIC independent of the direction of rotation. The motor chamber is equipped with connecting terminals. Protection of the motor winding by thermistors installed. Optional temperature monitoring of both bearings. The two maintenance-free, closed ball bearings are filled with high-quality grease. All outside casing parts are made of cast iron, cooling shroud, shaft and connecting elements are made of stainless steel. The motor is suitable for continuous operation under full load (S1) in emerged and immerged condition. The electrical components correspond to the efficiency class IE4 according to IEC 60034-30-2:2016.
