The HELI VARD315/2 Radax-VAR high-pressure duct fan from Helios is a powerful ventilation fan designed for use in demanding ventilation systems. With a diameter of 315 millimeters and a robust construction made of galvanized steel sheet, this fan offers high efficiency and durability. The directly driven fan features a semi-axial impeller with eight spatially curved blades made of thermoplastic, ensuring a vibration-free operation. The dynamic balancing according to quality level G 6.3 in accordance with VDI 2060 and DIN ISO 1940 guarantees stable and quiet operation. The fan is equipped with a three-phase squirrel-cage motor that allows for flexible speed control through voltage reduction. Additionally, it is maintenance-free and features low-noise, sealed ball bearings that provide long-term lubrication.

• Cylindrical duct sleeve with flanges on both sides for easy installation
• Built-in guide wheel to improve airflow
• Dynamic balancing for vibration-free operation
• Maintenance-free motor with thermal contacts for increased safety
• Low-noise ball bearings with long-term lubrication for extended lifespan.