This unit has been designed to work in extremely dangerous applications. It is rated ATEX Z20/Z22. That means that the unit is certified to work in an ATEX Z22 area, but the inner part of the unit is certified Z20. This certification is made by a third party (TUV NORD).
On this Depureco unit, a Hoerbiger flameless venting system is installed. This explosion-proof device has to be installed on an empty section of the filtration chamber, with no contact with the filters, and in order to work in the proper way, the valve position has to be routed on a safety area, far from the operator. The venting valve is designed to avoid any explosion in the working area. It works without emitting flames, and it just let a little amount of smoke escape.
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