Wilo-Helix V 1609-1/25/E/KS/400-50 high-pressure water pump 4141157

High-pressure water pump Wilo-Helix V 1609-1/25/E/KS/400-50

This is a multistage vertical centrifugal pump designed for water supply, pressure boosting, and industrial applications. The pump’s hydraulic design, optimized for flow and net positive suction head (NPSH), ensures high efficiency and reliability. Constructed from high-quality corrosion-resistant materials, including stainless steel, it guarantees long service life even under demanding conditions.

Characteristics and applications

The Wilo-Helix V pump performs excellently in irrigation systems, car washes, fire protection systems, and circulating systems for hot and cooling water. The version with EPDM seals allows use with potable water, enhancing its versatility. Thanks to its compact inline design, installation is simple and convenient. The pump is suitable for handling liquids containing solid particles up to 10 mm in diameter.

Construction and design features

The pump is designed for easy maintenance, featuring a robust coupling housing. Impellers, diffusers, and stage casings are manufactured from corrosion-resistant materials—stainless steel. The pump casing is made of stainless steel 304 (1.4301) or 316L (1.4404), depending on the version. The shaft is made of stainless steel 1.4301 or 1.4462 (AISI 318LN), ensuring resistance to aggressive media (in versions with FKM seals). The use of 2D/3D laser-welded hydraulic components optimizes efficiency and minimizes leakage risk. The pump features flanged connections compliant with EN 1092-1 standard, with DN50 diameter and pressure class PN25.

• The pump motor delivers 7.5 kW power at a supply voltage of 400 V and frequency of 50 Hz, ensuring efficient operation.
• The pump achieves a maximum flow rate of 26 m³/h and a maximum head of 117.8 m, enabling use in a wide range of applications.
• IP55 protection rating safeguards the device against dust and water jets, ensuring reliability in harsh operating conditions.
• The IE3 energy efficiency class motor reduces operating costs through lower energy consumption.
• The temperature range for the conveyed fluid is from -30°C to +120°C (depending on seal version), allowing operation across a broad ambient temperature range.
• Maximum operating pressure is 25 bar, ensuring safe use in demanding installations.
• The pump features Class F insulation according to IEC standards, guaranteeing high resistance to electrical and thermal stresses.