Fully submersible, multi-stage submersible pump with radial or semi-axial impellers in sectional construction for vertical or horizontal installation, with built-in non-return valve. Corrosion-free three-phase AC motor for direct starting with water-glycol filling. Hermetically cast with enamel-insulated windings, resin-impregnated and self-lubricating bearings. The motor is cooled by the fluid. A cooling jacket is therefore required for horizontal installation. For pumping water for geothermal applications with a maximum immersion depth of 200 m and a max. sand content of 50 g/m³. The QC version is equipped with a quick-connection cable for simple and fast replacement of the power cable.
Operating Data
Fluid media: Water 100 %
Fluid concentration: 100.00 %
Fluid temperature: 20.00 °C
Requested flow:
Requested head:
Max. delivery head: 23.50 m
Unit
Minimum efficiency index (MEI): ≥ 0.7
Pipe connection on the discharge side: Rp 1¼, PN 10/16/25/40
Maximum operating pressure: 2.6 bar
Max. sand content: 50 g/m3
Protection class motor: IP68
Max. immersion depth: 200 m
Min. fluid temperature: 3 °C
Max. fluid temperature: 40 °C
Net weight, approx.: 8.9 kg
Max. diameter: 98 mm
Motor data
Motor design: Submersible motor
Mains connection: 3~400V/50 Hz
Rated power: 0.25 kW
Rated speed: 2,865 1/min
Rated current: 0.67 A
Activation type: Direct On Line (DOL)
Max. switching frequency: 20 1/h
Motor diameter: 95.25 mm
Min. flow rate at the motor: 0.08 m/s
Cable
Connection cable length: 1.5 m
Cable cross-section: 3×1,5+1G1,5
Materials
Pump housing: 1.4301
Motor housing: 1.4301
Shaft: 1.4104
Impeller: PPE
Ordering information
Net weight, approx.: 8.9 kg
Brand: Wilo
Product description: Sub TWU 4.04-04-DM-D-QC-GT
Article number: 6091413
