Lightweight, efficient, and robust method for achieving sound attenuation. HardLine™ silencers are bolted to either inlet or outlet of auxiliary fans. Typically applied to both ends of the fan or on a single end between the fan and sound sensitive location.


  • Silencer design includes casing, insulation and steel inner liner
  • Bolt patterns can be included on flange or easily drilled on-site
  • Sound attenuation materials are moisture resistant and flame retardant
  • Shorter lengths allow for easy installs while maintaining a high decibel reduction
  • Hardline™ Silencers are durable and impact resistant
  • Units are less than half the weight of their steel counterparts
  • Silencer sizes up to 55" diameter
  • Casing manufactured with proprietary RigiFlex FR polymer that absorbs vibration, optimizing sound attenuation

pdf iconDownload Product Bulletin - SILENCERS

(1.27mb, PDF format - may require Adobe Reader to open.)