Characteristics of ATEX Fans
A portmanteau word made by combining English words “atmosphere” and “explosive”, ATEX are directives governing equipment and systems that operate in potentially explosive environments and ATEX fans are fans manufactured in line with the foregoing. Steel, stainless steel and aluminum cast fans are suitable for use in potentially hazardous conditions.
Classification of Explosive Environments
Flammable gasses and vapors are classified on basis of their ignition temperatures. Moreover, areas in dangerous zone classification are referred to as “zones”. ATEX fans are suitable for zones 1, 2 and 22.
Zone 0 (gas/vapor): an area where explosive gas atmosphere is present continuously or for long periods.
Zone 1 (gas/vapor): An area in which an explosive gas atmosphere is likely to occur in normal operation of the facility.
Zone 2 (gas/vapor): An area in which an explosive gas atmosphere is not likely to occur in normal operation and, if it occurs, will only exist for a short time.
Zone 20 (dust): An environment where an explosive mixture is present continuously or for a prolonged periods of time.
Zone 21 (dust): An environment where an explosive mixture be occur in normal operation of the facility.
Zone 22 (dust): An environment where an explosive mixture is not likely to occur in normal operation but -if it does occur, will persist for a short period only.