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Silencer Selection Program



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Custom Silencers - For Specialty Needs


Our specialty silencers provide maximum performance for unique applications. Elbow silencers are available to provide maximum attenuation for projects with spatial limitations. The return grille silencer is designed for use between a return air stream and an occupied space and is available in standard and nonstandard sizes to accommodate many applications. Discharge/intake silencers are engineered to work with vane axial fans and can be sized to match an individual manufacturer.
Materials
Galvanized Steel

Standard is hot-dipped galvanized steel with a coating weight of G-90 (0.90 ounces per square foot) and a standard mill finish. Hot-dipped galvanized steel with G-115 coating can also be furnished for an additional charge.

Product Library

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Comparative Test Data (245 kB) pdf
Description: Comparison of Dynamic Insertion Loss data between SEMCO and IAC.

Low Frequency Silencers (234 kB) pdf
Description: Our Low Frequency Silencers are specifically designed to solve noise problems in the lower frequency range.

Media-Free Silencers (392 kB) pdf
Description: Our Media-Free Silencers are designed to provide excellent broadband attenuation without the use of fiberfill media, eliminating the concern of fiber erosion or microbial growth in the air stream.

Silencers - Product Sheet (73 kB) pdf
Description: One page overview of the benefits of using silencers from SEMCO Duct & Acoustical Products. Also highlights features, materials available, sizes, options and accessories.

Special Application Silencers (352 kB) pdf
Description: Our Special Application Silencers are designed to provide excellent attenuation for applications when the use of standard silencers is not possible due to spatial limitations.

Standard Silencers (265 kB) pdf
Description: Our Standard Silencers provide good attenuation across all bands.
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