NAP Rectangular silencers are used wherever it is necessary to control the passage of noise along an air path.

In industrial applications, specially designed and constructed rectangular silencers control noise from fans and blowers, cooling towers, dust extraction systems and similar air or gas handling equipment such as compressors and turbines.

No limit is placed on the available cross-section size of the silencers which may be as small as 275mm x 150mm, or of several meters in cross-section.

Very large duct silencers are made up from several smaller silencers to reduce the transport and handling difficulties. It is preferable for the width of a silencer to be a multiple of the module width.

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