sound attenuator


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sound attenuator

In ductwork, a device (usually prefabricated) especially designed to provide much greater sound attenuation than would be provided by an equal length of ductwork; the pressure drop through the device is greater than for an equal length of ductwork.
References in periodicals archive ?
As an example, consider a blow-through system using a pair of axial fans whose outlets are connected to a plenum containing a collection of coils, filters and sound attenuators.
Tempmaster was the first to develop and market very effective, low air pressure drop sound attenuators called Acousti-Cells.