THE LANGUAGE OF DUST COLLECTION
When you’re exploring options for managing airborne dust and contaminants in your facility and controlling harmful composites from damaging the environment, the terminology you’ll encounter can sound like a foreign language. This dust collection vocabulary list may make it easier for you to make an informed choice when selecting an AirWall dust collection system from Envirosystems Group.
Air-to-Filter Ratio. This figure represents the volume of air entering the dust collection filter compared to the square feet of filter surface area, as expressed in cubic feet per minute to square feet. Lower air-to-filter ratios mean higher cleaning efficiency.
Cartridge Collectors. Unlike cumbersome and labor-intensive ducted bag collectors, AirWall dust collection systems feature built-in metal cartridges that contain pleated filtering media, resulting in an exceptionally high filter surface area.
Cubic Feet per Minute (CFM). This critical data represents the volume of air flow moving through the dust collection system per minute. Measurements typically do not take static pressure resistance into account.
Ductwork. Conventional dust collectors rely on a network of air ducts for dust collection and filtration. Because every foot of ductwork increases static pressure resistance, it has a negative effect on system air flow. AirWall ductless systems eliminate the ductwork middleman, effectively increasing efficiency.
Face Velocity. A measurement of the speed of the air moving through filter media, face velocity is typically expressed in terms of feet per minute (FPM). This measurement is used to determine the optimal filter size.
Filter Purging. AirWall dust collectors feature filter cartridges that self-clean by reverse pressurization with a quick pulse of compressed air. Dust collection systems with filter purging allow for manual as well as automatic modes.
Filter Surface Area. The filter surface area describes the dust collection system’s cleaning capacity and efficiency. Larger surface areas lower face velocity and improve efficiency. AirWall’s compact cartridge filters take up less space than conventional bag filters but have significantly higher filter surface areas.
Gauge Pressure. Dust collector gauges measure differential pressure, which is the difference in atmospheric air pressure and system air pressure. Air pressure readings are critical for efficiency analytics and system maintenance. AirWall systems feature advanced photohelic gauges that give you optimal control over system air pressure by automatically sensing when filters need cleaning.
Micron. Approximately 98 percent of all airborne particles are less than one micron is size. A micron is one millionth of a meter, which is around 1/25,000 of an inch in diameter. To put it into perspective, the period at the end of this sentence measures around 500 microns. At Envirosystems Group, our AirWall dust collection products are self-contained modular systems that remove 99.99 percent of airborne particulates sized 0.5 micron or larger, surpassing governmental standards for air filtration requirements.
Static Pressure Resistance. The volume of air that a dust collector can move is affected by the amount of air already in the system. Static Pressure (SP) criteria represents the resistant air pressure, as expressed in inches of SP.
If you have any other dust collector terminology questions or you are unsure of how these terms relate to your industry, contact Envirosystems Group; we are here for all of your dust collector needs, concerns, and service.