ATEX electric fans

ATEX-certified fans are legally mandatory in potentially explosive atmospheres — spaces where flammable gases, vapours, mist or dust can form explosive mixtures with air. Required in spray booths, fuel stations, chemical industry, solvent storage, silos, sewage treatment plants and any ATEX-classified environment.

How to choose: determine the ATEX zone (0/1/2 for gases, 20/21/22 for dust), gas subgroup (IIA, IIB, IIC) and temperature class (T1-T6). Request notified body certificate for categories 1 and 2.

An explosive atmosphere is any mixture, under atmospheric conditions caused by the handling or storage activity, of air and flammable substances in form of gas, steam or dust in which, after ignition, the unburned mixture is propagated.

Small particles coming from wheat flour, sugar, starch, cereals, milk powder in the food industry can be a danger because they have a high explosive potential. Also the aluminum powder, brown coal, iron powder, wood dust, soot, sulfur have this same problem if they join the circumstances that can lead to a catastrophic explosion.

For this type of environment, fans installed both for air supplying and extracting must be ATEX certified. Industrial fans are protected against explosion by the use of aluminum or copper inlet rings, EEX motors and special coatings.