Rectangular silencers

Description​ S: rectangular silencers case and partitions in galvanized steel sheet 200 mm thick partitions standard half lateral partitions to stiffen the structure 50 kg/ m3 rock wool sound-absorbing material covered with black glass fibre fire resistance class A1 according to EN 13501-1 acoustic tests according to ISO EN 11691 suitable for attenuation from 250 to 8k Hz 30 mm quick flange up to 6 m perimeter or max 2 m depth or 40 mm for larger sizes

Applicable Standards
  • ISO 11691

    Acoustics - Measurement of insertion loss of ducted silencers without flow - Laboratory survey method (ISO 11691:1995)

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