Wilo-Sub TWI 5-904EM water pump 4104122
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TECHNICAL DATA
Sales unit dimensions and weight: 1 pcs
Wilo-Sub TWI 5-904EM water pump 4104122
Submersible pump for wells and boreholes – a reliable water source
The Wilo-Sub TWI 5-904EM pump is a solid and efficient device designed to supply water from your own sources – wells, boreholes or tanks. Made of stainless steel, it guarantees long-lasting and trouble-free operation even in difficult conditions. It is an ideal solution for both households and professional applications, such as garden irrigation or powering industrial systems.
Construction and operating parameters
The pump is characterized by a compact design with a diameter of 5 inches (127 mm), which allows it to be installed in most standard boreholes. The 1.5 kW motor provides high efficiency, reaching a maximum flow rate of 16.07 m³/h and a head of up to 46.73 meters. Made of high-quality stainless steel (grade 304 – 1.4301) both the housing and the impeller ensure corrosion and mechanical damage resistance. The IP68 protection class guarantees complete sealing and the possibility of immersing the pump to a depth of up to 17 meters. The connection cable with a plug facilitates connection to the 230V/50Hz power supply, and the F insulation class ensures safe use.
Advantages for the installer and end user
- Durability and reliability: The use of high-quality materials, such as stainless steel, ensures a long service life of the pump and minimizes the risk of failure.
- Efficiency: A powerful motor and optimal hydraulic design guarantee effective water pumping even from great depths.
- Versatility: The pump is suitable for various applications – from supplying drinking water to irrigation or powering industrial systems.
- Easy installation: The power cord with plug and compact dimensions facilitate pump mounting in a well or borehole.
- Resistance to impurities: Maximum sand content in water up to 50 g/m³ allows the pump to operate even with poorer water quality.
- Safety: IP68 protection class and F insulation class ensure safe operation of the device.
- Use of corrosion-resistant materials: The body and impeller made of stainless steel 304 (1.4301) ensure long-term operation without the risk of corrosion, even in an aggressive aquatic environment.
- Continuous operation capability: The maximum number of operating cycles of 40 c/h allows for intensive use of the pump without fear of overheating or engine damage.
The Wilo-Sub TWI 5-904EM pump is an investment in a reliable water source that will provide comfortable use for many years. Thanks to its solid construction and high efficiency, it is an ideal choice for both demanding individual users and professionals looking for proven solutions in pumping water from wells and boreholes.

