Submersible pump Wilo-Sub TWU 4-0220-C DM 6049347

Submersible pump for wells and tanks

The Wilo-Sub TWU 4-0220-C DM submersible pump is a reliable device designed for efficient water extraction from deep wells with a diameter of 4 inches (110 mm / 125 mm), as well as closed tanks and cisterns. The pump’s design allows for both vertical and horizontal installation, increasing installation flexibility. It is a robust solution suitable for both professionals and individual users seeking an efficient water source.

Performance and applications

This pump offers a maximum flow rate of 2.55 m³/h and can lift water to a height of up to 139 meters. The 1.1 kW motor ensures stable operation even under demanding conditions. The nominal flow rate (BEP) is 2.178 m³/h at a head of 964.19 kPa, guaranteeing optimal energy efficiency. The pump is designed to operate with water containing up to 50 grams of sand per cubic meter, making it suitable for areas with variable water quality. Three-phase power supply (3 phases) at 400 V and 50 Hz ensures stable operation in demanding installations.

Construction and durability

The pump casing is made of high-quality stainless steel (grade 304 – 1.4301), ensuring corrosion resistance and long service life. The impeller, made of polypropylene (PP) or PVC-CPE, is resistant to abrasion and mechanical damage. The IP68 protection rating ensures complete hermetic sealing, allowing the pump to be submerged up to 200 meters without risk of motor damage. Class B insulation provides additional protection against overheating and failures. The pressure outlet with a 1¼ inch (32 mm) internal BSPT-Rc thread (ISO 7-1 / EN 10226-1) simplifies connection to water supply systems. The maximum operating pressure is 15.3 bar, ensuring safe operation in various water supply systems.