Annular Flow Silencers Manufacturers

Annular flow silencer is an absorptive silencer, which contain fibrous packing materials that control noise by absorbing noise energy. As the 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. Annular flow silencers are highly effective on high-frequency noise (500-8000 Hz). At frequencies above and below this range, attenuation performance progressively diminishes. Since the noise is absorbed by the packing media, this silencer does not rely on internal baffles, tubes or other restrictive devices to achieve noise reduction. The design of this silencer features a bullet centered in the flow tube to provide annular flow path, partial blocked-line-of-sight and the internal designs impose very little restriction to air flow.