The Helios AMW 225/4 is a medium pressure axial fan designed with a cylindrical duct casing and flanges on both sides for easy installation, conforming to DIN 24155 Pt.3 standards. The long sheet steel duct casing encloses the aerodynamically profiled axial impeller and motor, providing a compact and robust solution.
Equipped with a 14-blade polymer impeller, dynamically balanced to DIN ISO 1940 – 1 class 6.3, the fan operates with low vibration for reliable performance. It uses a totally enclosed AC condenser motor that is maintenance-free and features built-in thermal contacts for safety. The motor speed is controllable via voltage reduction, and the fan incorporates low-noise, sealed-for-life ball bearings. This fan is designed for non-reversible operation.