negative pressures created during the normal discharge process. By controlling the compressed air pressure and volume, materials once thought to be difficult to handle now gravity feed easily,quickly and automatically. > Because every material is unique to itself, theModel K Vibra-Jet bin aerator has the extreme flexibility to throttle the compressed air as required to handle almost any dry bulk solid material which is finer than 20 mesh (800 micron), regardless of its bulk density. This feature also maximizesprocess performance and minimizes the com-pressed air demand, plus it reduces the overall energy requirements. > The Model K Vibra-Jet > bin aerator, when installed onany storage silo, bin or hopper, can be extremely versatile and effective in getting dry bulk materials, like fine cement, to gravity feed more reliably at a very low cost. Materials which tend to pack, bridge or hang up can be made to flow freely and instantly upon demand. Some unique construction features have been designed into the Model K Vibra-Jet bin aerator to prevent backfeeding and truly set it apart from all other types of bin aerators available. This isextremely important because as the very fine drybulk materials become fluidized and more flowable they can, under certain circumstances, backfeed into the air source. To prevent this from happening, the Model K Vibra-Jet bin aerator has incorporated three seals. A primary seal at the outer edge and a secondary seal next to it providean almost impermeable wall to prevent materialfrom trying to backfeed under the gasket. Then, a third and final seal backs up the other two to provide additional assurance against possible backfeeding, even under the most severe of applications. This provides added reliability andextends the life dramatically. > Model K Vibra-Jet bin aerators installed at strategiclocations on a discharge cone of a storage silo, bin or hopper direct high or low pressure compressed airalong the bin wall to reduce the coefficient of frictionwhich exists between the bin wall and the stored material. The compressed air, which is injected in short high-pressure bursts, fully balances the natural > High-pressure compressed air is introduced into the binthrough the Vibra-Jet bin aerator in timed burststo coincide with the start of the discharge process. The positive flow of compressed air dislodges the stored material and keeps it moving. In addition to cleaning material from the bin walls, the rubber boot vibrates slightly to keep itself clean. Since the burstsof compressed air are generally less than .5 seconds,very little compressed air is required. > SUPPLYAIR Air Off Cycle Air On Cycle size="-1">