ABSORPTIVE SILENCERS

Is an absorptive silencer right for your application? The answer: It depends. That is why Universal AET is uniquely positioned in the industry; we can take you through the process of selecting the right silencer for your needs. A global network of business offices and a large team of experienced acoustic system experts are available to determine the best product to meet your needs.

The absorptive silencer is the classic dissipative design, obtaining its noise control properties from the basic fact that noise energy is effectively “absorbed” by various types of fibrous packing materials. As sound waves pass through the spaces between the tightly packed, small-diameter fibers of the absorptive material, the resulting viscous friction dissipates the sound energy as small amounts of heat.

Good Silencers for High Noise Frequencies

Absorptive silencers are very effective on high noise frequencies (500-8,000 Hz). At frequencies above and below this range, attenuation performance progressively diminishes. Since noise is absorbed by the packing material, absorptive silencers do not rely on internal baffles, tubes or other restrictive devices to achieve noise reduction. Consequently, absorptive silencers generally employ a “straight-through” or similar internal designs which cause minimal air flow restriction.