The Helios VARD 225/2 is a high-pressure pipe fan designed for efficient air movement in ducted systems. It features a cylindrical housing made from galvanized sheet steel with flanges formed on both ends, following the hole pattern specified in DIN 24155. The integrated guide wheel enhances airflow direction and efficiency. Equipped with a semi-axial impeller consisting of eight spatially curved blades made from thermoplastic, the fan delivers strong performance under pressure. The unit is directly driven, ensuring reliable operation in demanding ventilation applications.