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Circular sound attenuator in galvanized steel with insulation shell thickness of 50 or 100 mm enveloped in a glass film for air speeds up to 20 m / s
Attenuation values according to DIN EN ISO 7235 (63, 125, 250, 500, 1k, 2k, 4k, 8k [Hz])
Application
For noise reduction in round air ducts
Reducing noise produced by fans
Reducing flow noises from flow regulators or other channel components
Can be used as a damper to prevent sound transfer trough the ducting between rooms
Composition
Circular silencers are designed with an external galvanised duct system
Insulation with thickness 50 mm (SAR-G50) or 100 mm (SAR-G100)
Inner casing is made of perforated sheet steel
The void between the two is filled with sound-absorbing non-combustible mineral wool according to DIN4102 A2, specific mass> 20 kg / m³, building material class A2
Mineral wool certified according to RAL GZ 388
Connection to circular air ducts according to DIN EN 1506 or DIN EN 13180
Class D airtight connection with EPDM rubber according to DIN EN 12237
Airtight connection class D with EPDM rubber according to DIN EN 12237
Mounting
The attenuators should be mounted using duct suspension clamps, type OBMC, around the duct connection DN
Order example
SAR-G50 100 (200 mm) L=300mm
Explanation:
SAR-G = Type of sound attenuator
50 = Thickness of insulation in mm
100 = Connection diameter in mm
200 = Outer diameter (insulation shell included) in mm