Sound attenuator for circular ducts

A circular sound attenuator with circular connection spigots. Unique properties regarding fire-resistance class, fibre-migration proof design and sound attenuation. Patent-pending self-supporting fibre-migration proof surface lining and end wall solution.

  • Fibre-migration proof with FarTex®
  • 100 mm shorter
  • Tightness Class D
  • Excellent sound attenuation
  • Type-approved to Fire-resistance Classes EI30 and EI60
  • Included in the MagiCAD database


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Article Name Type Size Date Add to bucket
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Acoustics  Overview Brochures 2.60MB 9/18/2019 Add to bucket
SORDO  Installation – Maintenance Instructions/Manuals 233.67kB 2/12/2018 Add to bucket
SORDO A, C, P, PF  Lyddæmper til cirkulære kanaler Catalogue/Product sheets 574.04kB 3/11/2019 Add to bucket
SORDO-A  Building product declaration Declarations 50.46kB 1/9/2013 Add to bucket
SORDO-A  Lyddæmper til cirkulære kanaler Catalogue/Product sheets 329.70kB 3/11/2019 Add to bucket
SORDO-B  Building product declaration Declarations 48.89kB 9/4/2017 Add to bucket
SORDO-C  Building product declaration Declarations 48.49kB 9/4/2017 Add to bucket