ACOUSTIRAP^® covers have a sound transmission class (STC) of 55. The acoustical performance of removable covers is frequency dependent. Performance increases with the increase of frequency of the incident noise. The unique design of the covers utilizing a double layer of septums separated by an air gap, significantly increases the acoustical performance, allowing up to 25dBA of noise reduction in many instances. ATC will predict the resulting noise level based upon our calculations and customer provided complete noise spectrum.

The only attenuation covers tested for performance in explicit conformity with the ASTM Designation E90-90 and E413-97 by U.S. Government accredited Riverbank Acoustical Laboratories.

Multi-purpose thermal and acoustical covers custom designed and fitted to specific applications for the ultimate in performance and appearance.

Fabricated from carefully selected and tested combinations of sound attenuating multi-layer insulation and special acoustical septums, encased in jacketing material suitable for any imaginable environment, while providing a great aesthetic appearance. Jacketing materials are available in a variety of colors.

To view more images of fans and blowers with acoustical covers, [click here] to be taken to the Photo Gallery.