Helios Fans VARD 450/2 Ex

The Helios VARD 450/2 Ex is a high-pressure in-line mixed-flow fan designed for hazardous environments, compliant with ATEX explosion-proof standards. It features a cylindrical casing made from pre-galvanised sheet steel with rolled flanges on both ends, following DIN 24155 specifications for flange dimensions and mounting hole patterns. Integrated guide vanes optimize airflow and enhance overall fan efficiency.

This fan is equipped with a mixed-flow impeller comprising eight spatially curved blades fabricated from galvanized steel. The impeller is dynamically balanced to class G 6.3, adhering to VDI 20060 and DIN ISO 1940 standards, ensuring smooth, vibration-free operation. Powered by a totally enclosed, maintenance-free 3‑phase squirrel cage motor fitted with sealed-for-life, low-noise ball bearings, the VARD 450/2 Ex is designed for reliable, continuous performance in explosion-risk areas. The motor is non-controllable and built to deliver safe ventilation in ATEX-classified applications.