What is the difference between ATEX Zone 21 and Zone 22?

What is the difference between ATEX Zone 21 and Zone 22?

In a hazardous dust environment, an ATEX Zone 21 is classified as an area that is classified ‘as a place in which an explosive atmosphere in the form of a cloud of combustible dust in the air is likely to occur occasionally during normal operation’ whereas an ATEX Zone 22 is classified as ‘a place in…

What are the dust zones in ATEX?

ATEX dust zones | Zone 20 | Zone 21 | Zone 22 How to classify hazardous areas due to combustible dust. Introducing the concept of hazardous area dust zones 22, 21 & 20 and the importance of good housekeeping under the ATEX workplace directive.

What is a zone 21 dust?

Primary grade of release gives rise to Zone 21 – a place in which an explosive atmosphere, in the form of a cloud of combustible dust in air, is likely to occur occasionally in normal operation. For example, bagging points and inspection ports that are frequently opened. Zone 22

What is a zone 22 hazardous area?

Atex Zone 22 is classified as the medium risk area for the presence of flammable substances in the form of powder or dust potentially explosive, by the ATEX directive. Zone 22 hazardous areas are usually warehouses or storage areas, but in some cases they can be process areas.

What is an example of an ATEX Zone?

Hazardous Gas, Vapour and Mist Environments: ATEX Zones 1 and 2 A good example of an ATEX Zone 1 or ATEX Zone 2 classified operation would be a chemical or petrochemical plant, where there is a heightened risk for explosion during the course of normal day to day operations.

How do I select ATEX 2014/34/EU compliant equipment?

Select ATEX 2014/34/EU compliant equipment according to the intended Zones. Equipment such as forklift trucks, diesel engines, access platforms, sweepers, cranes etc can all be converted so that they are ATEX 2014/34/EU explosion proof compliant for use in classified hazardous areas under DSEAR or ATEX 1999/92/EC.