Submersible sewage pump: FA 25.31Z
Motor type: FKT 20.2M-6/32G
Type of impeller: Two-channel
Type of installation: Suspension device
VERSION
Submersible sewage pump as a submersible, single-stage monobloc unit in stationary, vertical installation, for pumping untreated sewage that does not attack the pumps either chemically or mechanically. Pump with radially arranged discharge port and axial pump inlet. Unit structure is easy to service due to split motor and pump housing unit.
The pumping values must be guaranteed in accordance with ISO 9906 Annex A.
For the pump type FA 25.31Z, the version type also depends on the motor!
Please select a motor in the drop-down menu on the right and read the relevant description:
Submersible motor in pressure-resistant design with water-glycol circulation cooling and additional dry leakage chamber. Optional leakage monitoring of the chamber. Motor sealed at the shaft by two mechanical seals SIC/SIC, independent of direction of rotation. The motor chamber is equipped with a terminal board for the power supply and Wago plugs for the control cable. Protection of the motor winding by built-in temperature sensors. Optional temperature monitoring of both bearings. The two maintenance-free closed ball bearings are filled with high-performance grease. All external housing parts are made of grey cast iron, cooling jacket, shaft and connecting elements of stainless steel. The motor is suitable for continuous operation under full load (S1) in submerged and submerged condition.
PUMP PART DATA
Type of impeller: Two-channel
Full impeller diameter: 278
Adapted impeller diameter: 278 mm
Free ball passage: 125 mm
Pressure port: DN250
Suction port: DN200
Possible operating modes:
Suspension unit: DN250/2R
WEIGHTS
Max. weight of the pump part: 120 kg
Weight of the motor: 230 kg
Max. weight of the unit: 350 kg
MATERIALS
Pump housing EN-GJL-250
Stationary wear ring 1.4308
Impeller EN-GJL-250
Mobile wear ring 1.4462/1.4470
MOTOR DATA
Rated power: 13 kW
Power consumption of the motor at rated power: 15.8 kW
Current consumption of the motor at rated power: 28.08 A
Number of poles: 6
Rated speed: 948 1/min
Cos phi at rated power: 0.81
Cos phi at start:
Efficiency of the motor at rated power: 82.5 % %
Rated frequency: 50 Hz Hz
Operating mode (VDE 0530): S1
Max. fluid temperature: 40 °C
Starting current for direct starting: 168.0 A
Starting current for star-delta starting: 56.0 A
Starting torque: 17,148.0 Nm
Moment of inertia: 0.07312 kg m²
Maximum switching frequency: 15
Motor connection line: 4×4 + 7×1,5 NSSHÖU
Maximum possible motor connection line: 4×16
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: 957 1/min
Submersible motor in pressure-resistant design with water-glycol circulation cooling and additional dry leakage chamber. Optional leakage monitoring of the chamber. Motor sealed at the shaft by two mechanical seals SIC/SIC, independent of direction of rotation. The motor chamber is equipped with a terminal board for the power supply and Wago plugs for the control cable. Protection of the motor winding by built-in temperature sensors. Optional temperature monitoring of both bearings. The two maintenance-free closed ball bearings are filled with high-performance grease. All external housing parts are made of grey cast iron, cooling jacket, shaft and connecting elements of stainless steel. The motor is suitable for continuous operation under full load (S1) in submerged and submerged condition.
