Helios Fans VARD 250/4 Ex
Helios
Prices & Options
The Helios VARD 250/4 Ex is a high-pressure in-line mixed-flow fan designed for use in hazardous or explosive environments, with full ATEX certification. Its cylindrical casing is made from pre-galvanised sheet steel and includes rolled flanges at both ends, conforming to DIN 24155 specifications for dimensions and mounting holes. Integrated guide vanes improve aerodynamic performance and airflow direction.
The fan incorporates a mixed-flow impeller with eight spatially curved blades made of impact-resistant polymer, dynamically balanced to class G 6.3 in accordance with VDI 20060 and DIN ISO 1940. It is powered by a totally enclosed, maintenance-free 3‑phase squirrel cage motor, featuring sealed-for-life low-noise ball bearings. The fan is non-controllable and is specifically engineered to deliver safe, reliable ventilation in ATEX-regulated zones.
| Code & Description | Price | |
|---|---|---|
| VARD250/4EX : Helios Fans VARD 250/4 Ex | £871.00 + VAT £1,045.20 | |
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