Products > Acoustic > Circular sound attenuator with quick coupling

Circular sound attenuator with quick coupling


The sound attenuators are used to absorb the noise in air conditioning or ventilation ducts.


  • Steel casing;
  • Mounting flange with quick coupling;
  • Acoustic material in glass wool 30 kg /m³ with protection against erosion by glass fibre fire resistance M0 and extended metal net;
  • Acoustic tests not yet completed.


  • Casing in painted carbon steel, galvanized steel and stainless steel on request.
  • The tolerances of construction and the resulting play and fittings, in relation to the nominal diameter ø, follow the legislation UNI EN 1506:2000;