Wilo-Helix V 403-1/16/E/KS/400-50 high-pressure water pump 4160519

High-pressure water pump Wilo-Helix V 403-1/16/E/KS/400-50

This three-phase high-pressure Wilo-Helix V 403 pump is a robust solution for demanding water pumping applications. Constructed from high-quality stainless steel, it ensures reliable operation and long service life, even under harsh conditions. The pump is particularly well-suited for systems requiring pressure boosting or circulation of hot and cooling water.

Design and applications

The Wilo-Helix V 403 is a vertical, multi-stage pump designed to handle water containing solid particles up to 10 mm in diameter. Its inline inlet and outlet ports facilitate easy integration into existing systems. The pump is widely used in the following applications:

• Irrigation and car wash systems
• Water treatment
• Fire protection systems
• Pressure boosting in water supply networks
• Circulation of hot and cooling water
• Water supply systems

Performance and operating parameters

The pump delivers a maximum flow rate of 6.5 m³/h and a maximum head of 23.45 m, with a maximum operating pressure of 16 bar. The 0.37 kW (P2) motor with IE2 energy efficiency class ensures optimal energy consumption. The impeller is made of stainless steel 304 (1.4307), and the casing is made of stainless steel 304 (1.4301), guaranteeing corrosion resistance and long-term reliability. The pump operates at 400 V and 50 Hz, with an IP55 protection rating providing defense against dust and water jets. The operating temperature range is -30°C to +120°C for the medium and -15°C to +50°C for ambient temperature.

Additionally, the minimum efficiency index (MEI) of 0.7 confirms the pump’s high energy efficiency. The F-class insulation provides enhanced safety and motor durability.