5
How Downflow/Vertical Systems Operate
Contaminated air enters the collector above the filter
cartridges. Specially designed components in the
cabinet uniformly distribute the contaminated air
across the top of the filters. The contaminated air
flows downward without the detrimental velocity
spikes that are common with competitive designs.
Dust is conveyed to the settling area below the filters
by both air movement and gravity. The extremely small
particulate is collected on the filter media, allowing
clean air to return to the workplace. Once particulate
collection is sufficient to reduce airflow, the patented
reverse jet pulse cleaning system is initiated to
propel the collected dust off the filters and into the
settling area.
Downflow
Air Boss’ downflow/vertical design has zero velocity
at the base of each filter stack, allowing dust to
settle uninhibited below the cartridges, thereby
eliminating re-entrainment.
Cartridge Filters
The standard 100% cellulose cartridge media is
high in resin content for mechanical resilience and
has pleat-lock construction. Standard cartridges are
rated for temperatures up to 160° F – high temperature
cartiridges are available.
Dust Settling
The Air Boss design allows larger dust contaminants
to have a clear path to the settling area and finer dust
to be collected by the filters.
Venturi
Venturi Reverse Pulse Cleaning is the quick release of
pressure through a blowtube into a venturi enductor
tube into a cartridge filter. A higher volume of air is
induced via this principle. The resulting burst of com-
pressed air is more equally dispersed across the filter
resulting in greater cleaning effectiveness compared to
standard reverse pulse cleaning.
Pulse Jets
Pulse jet performance and economy are maximized by
optimizing the orifice size and position. There are four
methods of initiating jet pulse cleaning to best fit the
end user’s needs.
Cylindrical Fan Housing
The motor, fan and full-length venturi are packaged
into a tubular centrifugal fan arrangement for
greater performance, quieter operation and
simplified maintenance.
Solution.
With Air Boss’ patented downflow/vertical airflow technology, re-entrainment and its effects have been
minimized for maximum efficiency and filter life. Carefully managed inlet velocity ensures that the air only flows
downward, never up or sideways. This prevents air movement below the cartridges, where the dust has settled,
and facilitates effective cleaning, both when the collector is operating and when it is shut down.
Downflow Inlet
Cartridge Filters
Dust Settling Area
Venturi
Pulse Jets
Cylindrical Fan Housing
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