Helios Fans HQD 450/4 Ex
Helios
Prices & Options
The Helios HQD 450/4 Ex is a square plate high-efficiency axial fan featuring a directly driven inlet cone, designed specifically for explosion-proof applications in accordance with ATEX certification.
Its square mounting plate includes a drawn bell mouth inlet crafted from galvanised sheet steel for durability.
The fan incorporates a highly efficient 7‑blade impeller, dynamically balanced to DIN ISO 1940 and VDI 2060 class 6.3 standards. Manufactured from impact-resistant anti-static polymers, the impeller is suitable for operating temperatures from ‑30°C to +40°C and offers electrical resistance below 1 Ohm to prevent static buildup.
Powered by a totally enclosed, maintenance-free 3‑phase squirrel cage motor with low-noise sealed-for-life ball bearings, this model is not speed controllable but guarantees safe and reliable operation in hazardous environments thanks to its explosion-proof design per ATEX requirements.
| Code & Description | Price | |
|---|---|---|
| HQD450/4EX : Helios Fans HQD 450/4 Ex | £856.00 + VAT £1,027.20 | |
We accept : 
15% discount with code ‘welcnfan1’
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