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POOL: Type CA


TROX circular silencers type CA are intended for use in room air conditioning systems.

In air distribution systems they can be used to attenuate fan noise and to reduce the air-regenerated noise of air terminal units.

To avoid sound transmission through ventilation ducting between adjacent rooms they can be integrated into the duct system as so called cross talk silencers.

  • Circular silencer in rigid construction
  • Casing and perforated inner duct galvanised sheet steel
  • Lining is mineral wool conforming to DIN 4102, fire rating class A2, with RAL quality mark RAL-GZ 388
  • Mineral wool faced with fibreglass as protection against erosion suitable for air velocities up to 20 m/s
  • Insertion loss tested according to DIN EN ISO 7235

The outer casing and perforated inner duct of circular silencers type CA are galvanised sheet steel.
The non-combustible acoustic material is available in insulation thicknesses of 50 mm or 100 mm.

Constructional features

  • Circular silencer in rigid construction
  • Insertion loss tested according to DIN EN ISO 7235
  • Casing air leakage complies with DIN EN 1751, class A
  • Construction with spigot connections suitable for circular connecting ducts to DIN EN 1506 or DIN EN 13180 with groove for lip seal (if lip seals are required, these will be factory fitted)
  • Flange construction with flange drilling to DIN 12220

Materials

  • Casing and perforated inner duct galvanised sheet steel
  • Lining is mineral wool conforming to DIN 4102, fire rating class A2, with RAL quality mark RAL-GZ 388, bio-degradable as defined by TRGS 905 and EU directive 97/69/EG
  • Mineral wool faced with fibreglass as protection against erosion suitable for air velocities up to 20 m/s

Name Group Type Ident-No. Type/Size
         
CA · CB · CF · CS Circular Silencer Technical Leaflet 6/5/EN/6 PDF / 262 KB 
CA-CB-CF-CS Teknisk brochure 6/5/DA/4 (PDF - 370 KB) PDF / 364 KB 
Stampati tecnici C Circular Silencer Technical Leaflet 6/5/I/4 PDF / 241 KB 
CA, CB, CF, CS Circular Silencer Technical Leaflet 6/5/PL/4 PDF / 1.1 MB