Silencer -

Circular Duct Silencer

These easy to fit silencers for circular ducts, come with a spiral duct standard compliant connection.   It effectively reduces noise in the duct.

Where noise reduction is a critical factor, two silencers can be used together. 

For the most effective noise reduction, the silencer should be fitted immediately behind a fan or bend.  But can be fitted either side of the fan to maximise the noise reduction inside and on breakout.

Manufactured from galvanised steel with a perforated inner liner 50mm of insulation and an outer skin of galvanised steel.


  • Effective duct noise reduction
  • Can be used as inlet or outlet silencer
  • Silencer spigots match in-line duct fans
  • Good attenuation 125Hz and 250Hz bands

Download PDF Download Data Sheet

All prices include VAT (where applicable)