Fully submersible, multistage submersible pump with radial or semi-axial impellers in sectional construction for vertical or horizontal installation, with built-in non-return valve. Corrosion-free single-phase or three-phase AC motor for direct starting with water-glycol filling. Hermetically sealed with enamel-insulated windings, resin-impregnated and self-lubricating bearings. The motor is cooled by the pumped fluid. Therefore, the unit must always be operated immersed. Horizontal installation must be performed in conjunction with a cooling jacket.
For pumping water out of boreholes with a maximum immersion depth of 200 m and a max. sand content of 50 g/m³.
Scope of delivery:
– Hydraulics + motor completely assembled
– Connection cable approved for drinking water
– Single-phase version including switchbox with capacitor, thermal motor protection and On/Off switch
– Installation and operating instructions
Operating Data
Fluid media: Water 100 %
Fluid concentration: 100.00 %
Fluid temperature: 20.00 °C
Requested flow:
Requested head:
Max. delivery head: 33.03 m
Unit
Minimum efficiency index (MEI): ≥ 0.7
Pipe connection on the discharge side: Rp 1¼, PN 10/16/25/40
Maximum operating pressure: 3.6 bar
Max. sand content: 50 g/m3
Protection class motor: IP68
Max. immersion depth: 200 m
Min. fluid temperature: 3 °C
Max. fluid temperature: 30 °C
Net weight, approx.: 8.5 kg
Max. diameter: 98 mm
Motor data
Motor design: Submersible motor
Mains connection: 3~400V/50 Hz
Rated power: 0.37 kW
Rated speed: 2,840 1/min
Rated current: 1.17 A
Activation type: Direct On Line (DOL)
Max. switching frequency: 20 1/h
Motor diameter: 97 mm
Min. flow rate at the motor: 0.08 m/s
Cable
Connection cable length: 1.75 m
Cable cross-section: 4G1,5
Materials
Pump housing: 1.4301
Motor housing: 1.4301
Shaft: 1.4104
Impeller: PPE
Ordering information
Net weight, approx.: 8.5 kg
Brand: Wilo
Product description: Sub TWU 4.04-05-DM-C
Article number: 6049348
