Acoustic Insulated Flexible Duct
Ref: AFD
Acoustically lined flexible duct with 50 mm insulation providing up to 25 dB insertion loss for noise-critical installations.
Key Specifications
- Inner core
- Perforated aluminium
- Insulation
- Glass wool 50 mm, 32 kg/m³
- Insertion loss (250 Hz)
- ≤ 25 dB/m
- Temperature range
- –30 °C to +120 °C
- Max air velocity
- 15 m/s
- Available diameters
- 102 – 315 mm
Description
The AFD acoustic insulated flexible duct is specifically designed for noise-sensitive environments such as recording studios, theatres, hospitals, and executive offices. It features a perforated aluminium inner core that acts as a sound-absorbing surface, surrounded by 50 mm high-density glass wool insulation (32 kg/m³) and enclosed in an outer aluminium foil vapour barrier. The combination delivers up to 25 dB insertion loss at mid frequencies, significantly attenuating fan noise, breakout noise, and cross-talk between adjacent rooms.
Features
- Perforated aluminium inner core
- 50 mm glass wool insulation (32 kg/m³)
- Up to 25 dB insertion loss at 250 Hz
- Aluminium foil outer vapour barrier
- Low regenerated noise profile
Applications
- Recording studios and theatres
- Hospital patient rooms
- Executive offices and boardrooms
Technical Documents
Materials
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