The ATEX (94/9/CE) directive establishes the requirements concerning equipment and protective systems intended for use in potentially explosive atmospheres. This directive was developed to ensure that precautions are taken to both prevent potential explosions and mitigate the effects if an explosion occurs.
Within a manufacturing plant with a potentially explosive atmosphere, any provider or operator of equipment will be required to evaluate current equipment for ATEX compliance.
Hazardous areas are divided into zones that relate to the predicted occurrence of when an explosive atmosphere may be present in the area.
For functional reasons dust filters belong to the category of machines that bear the highest risk of explosion.
The WAM ATEX dust collector range fully complies with the requirements of the directive. Mathematical modeling has been carried out and the results have been confirmed through tests with DMT in Germany back in 2002.
WAM’s ATEX filters are certified as a complete separate machine. With ATEX, the equipment either complies with the essential safety requirements or it simply is not suitable. Those products placed on the market that include only certain components that are ATEX-marked do not comply with ATEX.
One critical point for the engineer when it comes to sizing of a de-dusting system in a potentially explosive area is the proper definition of the protection system.
Certainly the Pred value has a relevant role in that decision because the higher it is the smaller the area of the explosion panel.
The robust design of the WAM dust collector range guarantees for a Pred of 1 bar.
The benefits of this important point is not only the reduced cost of the explosion panel but also the minimum space required on top of the silo.
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