Air-to-Cloth Ratio*

For an air filter, the ratio of the volumetric gas flow rate through a filter medium to the filter area. For the shaker filter and reverse flow filter the typical value is in the range 0.3 to 2.3 m/min whereas for the pulse-jet filter the value is higher and typically in the range 1.5 to 4.5 m/min to reflect the greater throughput. Sometimes referred to as the gas-to-cloth ratio.

*This definition was reprinted by permission from the "Dictionary of Filtration and Separation". The "Dictionary" contains over 1500 definitions and 400 diagrams and photos. More information on the "Dictionary" and order form can be found here.

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