The HELI VARD225/4EX RADAX-VAR high-pressure duct fan from Helios is a powerful ventilation fan specifically designed for applications requiring high pressure conditions. With its cylindrical duct sleeve and flanges on both sides, it allows for easy installation in existing duct systems. The fan is explosion-proof according to ATEX, making it ideal for use in potentially hazardous environments. The directly driven three-phase short-circuit rotor motor ensures reliable operation, while the semi-axial impeller with eight spatially curved blades made of thermoplast provides high air flow and efficient performance. The enclosed design and maintenance-free, low-noise ball bearings ensure a long service life and vibration-free operation.

• Explosion-proof according to ATEX for use in hazardous environments
• Dynamic balancing according to quality level G 6.3 VDI 2060 for vibration-free operation
• Maintenance-free motor with long-term lubrication for reduced operating costs
• High-pressure performance with an air flow rate of 940 m³/h
• Robust construction from galvanized steel sheet for durability.