Wilo-Sub TWI 5-903DM water pump 4104125

Submersible pump for wells and boreholes – a reliable source of water

The Wilo-Sub TWI 5-903DM is a three-phase submersible pump designed for efficient and reliable water extraction from wells and boreholes. The construction based on high-quality materials, including stainless steel, guarantees a long service life and corrosion resistance, even in harsh conditions. The pump is used both in households and in irrigation systems and in industry.

Performance and reliability in every detail

This pump stands out with its impressive performance – a maximum of 15.84 m³/h – which allows for effective satisfaction of water demand. The maximum head reaches 35.61 meters, enabling water intake even from deep sources. The 1.1 kW motor ensures stable operation, and the C characteristic allows for smooth starting of devices with a motor, minimizing the risk of overloads. The IP68 protection class guarantees complete sealing and safe operation of the pump even when fully submerged.

Construction and materials ensuring durability

The pump housing is made of high-quality stainless steel 304 (1.4301), which ensures corrosion resistance and long-term operation. The impeller, also made of stainless steel 304 (1.4301), is characterized by high mechanical strength and abrasion resistance. The pump is adapted to work with water containing sand – the maximum sand content is 50 g/m³. The outlet connection complies with ISO 7-1 / EN 10226-1 standards (tapered internal gas thread BSPT-Rc with a diameter of 1 1/4 inch) facilitates installation and integration with existing hydraulic systems. The flange connection outlet pressure class is PN 10.