Secondary silencer

layer

CF

Circular silencers, in flexible aluminium construction, for the reduction of noise in the circular ducts of air conditioning systems

  • Absorption material is non-combustible mineral wool with RAL quality mark, biosoluble and hence hygienically safe according to the German TRGS 905 (Technical Rules for Hazardous Substances) and EU directive 97/69/EC
  • Casing and perforated inner duct made of aluminium
  • Variant with spigot has a groove for a lip seal, suitable for circular connecting ducts to EN 1506 or EN 13180
  • Insertion loss measured according to ISO 7235
  • Casing air leakage to EN 15727, class D


Optional equipment and accessories

  • Socket-type spigots on both ends
  • Raised edges at both ends
  • With lip seals on both ends

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layer

CA

Circular silencer made of galvanised sheet steel or stainless steel
  • Attenuation effect due to absorption
  • The sound absorbing material is non-combustible mineral wool and nonhazardous to health according to the German TRGS 905 (Technical Rules for Hazardous Substances) and EU directive 97/69/EC
  • Acoustic data measured to ISO 7235
  • Leakage class C or D (depending on size) to EN 15727.
  • For use in areas with potentially explosive atmospheres (according to EC Directive 2014/34/EU (ATEX)), zones 1, 2, and zones 21 and 22 (outside) according to EC Directive 1999/92/EC
Optional equipment and accessories
  • Spigot with lip seal, for circular connecting ducts to EN 1506 or EN 13180
  • Socket-type spigot suitable for circular ducts to EN 1506 or EN 13180

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layer

TX

Rectangular secondary silencer to reduce air-regenerated noise, suitable for air terminal units type TVJ, TVT and EN

  • Sound absorption material made of non-combustible mineral wool with RAL quality mark, non-hazardous to health due to high biosolubility in accordance with the German Hazardous Substances Ordinance and Note Q of the European Regulation (EC) No. 1272/2008
  • Mineral wool faced with glass fibre fabric as a protection against erosion, effective with airflow velocities up to 20 m/s
  • Insertion loss measured according to ISO 7235.
  • Casing air leakage according to EN 15727, class C

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layer

TS

Rectangular secondary silencer to reduce the air-regenerated noise, suitable for type TVZ, TVA, TZ-Silenzio, TA-Silenzio and TVM air terminal units

  • Absorption material made of non-combustible mineral wool with RAL quality mark, non-hazardous to health due to high biosolubility in accordance with the German Hazardous Substances Ordinance and Note Q of the European Regulation (EC) No. 1272/2008
  • Mineral wool faced with glass fibre fabric as protection against erosion, for airflow velocities up to 20 m/s
  • Insertion loss measured according to ISO 7235
  • Casing air leakage according to DIN EN 15727, up to NS 200 class C, from NS 250 class B

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Contact

Thank you for your message!

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Our department for Service-Requests will contact you asap.
For general question regarding products or services you can also call:
Tel.: +60 6 678 8188 | Fax: +60 6 678 8288 (388)