FOR THE REDUCTION OF NOISE IN CIRCULAR DUCTS, ALUMINIUM CONSTRUCTION
Circular silencers, in rigid 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
Application
Circular silencers Type CS for the reduction of air-regenerated noise in the circular ducts of air conditioning systems
For the reduction of air-regenerated noise of air terminal units LVC and TVR, and of mechanical self-powered controllers RN and VFC
For the reduction of fan noise
Can be used as cross talk silencer to reduce the transfer of noise through ducts between neighbouring rooms
Special features
Insertion loss measured according to ISO 7235
Absorption material is non-combustible
Insulation thickness 25 mm or 50 mm
Nominal sizes
80, 100, 125, 160, 200, 250, 315, 400 mm