Filters of preliminary purification of air are manufactured of the polyester synthetic fiber capable to hold, depending on a class of cleaning, from 200 to 400 g of pollution on square meter of the area of the filter. All filters pass tests by a technique of EN 779 by results of which a certain class is appropriated to each material (from EU3 to EU9).
Filters of preliminary cleaning play an important role as they assume main "blow", i.e. large particles of dust, swelled, various fibers which constantly are airborne. The purpose of a preliminary (rough) filtration of air consists not only in prolonging service life of the filter of thin cleaning, but, what is much more important, to protect the electric motors setting fans of inflow and an extract of air in motion from dust. The grains of sand getting to bearings of electric motors several times reduce their resource that leads to failure of the expensive equipment. Besides, the air which is not purified of dust very quickly pollutes heating or cooling elements of the equipment that in the first case can lead to ignition, and in the second - to failure of cooling installation.
- MPA certificate
- IPA test for compatibility with paints.
Producer: VOLZ FILTERS