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PBF Filters :
How the PBF works
The PBF consists of a number of filter cells. Each cell is comprised of an endless pleated media belt looped between two pulleys. Unfiltered air enters the unit parallel to the filter cells and passes through the straight sections of the belt loop. Larger fibers collect on the outer edges of the pleat and smaller particles build up on the media surfaces between pleats. The cleaned air flows between the two sides of the cell into a plenum in back of the filter and then exits. Pressure drop across the media is constantly monitored by a dual setpoint
pressure gauge. When the high point is reached for a given cell, that
cell’s belt begins rotating around the pulleys. At the same time,
a stationary suction plenum underneath the cell is activated and air jets
located in the The patented media is a significant new design that is central to the PBF achieving its unique capabilities. The pleats are tightly spaced for filtration purposes and open up around the lower pulley for cleaning purposes.
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floor and lower pulley’s hollow shaft are pulsed with low pressure
compressed air. As the belt moves around the lower pulley, the pleats
open up and air flow through the media is blocked, allowing the pleats
to be easily vacuumed and pulsed clean.