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Compressed air-operated industrial vacuum cleaner on a rolling cart for gas and dust Ex zones 1/2/21/22 for the collection of flammable and hazardous dusts.
The most effective filter cleaning method using pneumatic means is the alternating filter cleaning system MFA.
This development from Krahnen cleans the filter element without the need for additional auxiliary power, instead utilizing the suction volume of the vacuum cleaner and the differential pressure for effective filter cleaning. At least two filter elements per vacuum cleaner are necessary for this purpose. As the filter surface load increases and the vacuum cleaner no longer achieves the desired suction performance at the suction point, the user can quickly clear the filters again with the MFA filter cleaning system. In contrast to other manufacturers where filter cleaning is done using pressure pulses, filter shakers, or vibration, the important filter fabric of Krahnen vacuum cleaners is not compressed, crushed, or subjected to other mechanical stresses.
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