Aldes OCTA à Baffle D250 Acoustic Attenuator
Acoustics
The OCTA à Baffle sound trap significantly reduces the propagation of acoustic energy (medium and high frequencies) within a circular duct system.
OCTA à baffle diameter 250 with seal
Image description: A cylindrical component, likely the OCTA à Baffle D250, shown in profile. It has a ribbed outer surface and appears to be made of metal. The text indicates it is a sound trap with a baffle.
Product Highlights
- High acoustic attenuation performance.
- Energy saving: low pressure drop.
- Energy saving: low leakage rate (Class C tightness).
Operating Principles
The interior of the OCTA à Baffle is lined with mineral wool and a glass veil to attenuate sound. Additionally, the OCTA features a central baffle made of rock wool to enhance its attenuation capabilities.
Product Description
The circular OCTA à Baffle sound trap effectively reduces noise transmitted through ventilation systems, ensuring acoustic comfort in tertiary and collective buildings while maintaining excellent system airtightness. The product range covers diameters from Ø 250 mm to Ø 630 mm.
Application Areas
- Collective residential housing
- New construction
- Renovation
- Tertiary premises
Implementation
- Installs directly between two circular ducts in the system.
Reference Specifications
Sound Trap
- Outer casing: solid galvanized sheet metal.
- Connection collars with seals.
- Inner casing: perforated galvanized sheet metal.
- Acoustic insulation: 50 mm mineral wool + glass veil.
- Fire classification: MO, with a central baffle.
- Monobloc rock wool panels.
- Anti-fraying glass veil.
- Galvanized steel frame.
- Baffle attack edges integrated into the baffle.
- Baffle thickness: 50 mm up to Ø 355 mm, and 100 mm beyond.
- Fire classification: M1.
General Data
| References | Insulation density of the baffle (kg/m³) | Insulation density (kg/m³) | Insulation thickness (mm) | Baffle thickness (mm) | Main Material | Insulation Material | Baffle Insulation Material | Weight (kg) |
|---|---|---|---|---|---|---|---|---|
| 11094990 | 55 | 17 | 50 | 50 | Galvanized Steel | Rock Wool | Rock Wool | 12 |
Dimensional Data
| References | F (mm) | G | Ø d (mm) | Ø D (mm) | Weight (kg) |
|---|---|---|---|---|---|
| 11094990 | 900 | - | 250 | 355 | 12 |
Octa à baffle
Diagram showing the dimensions of the OCTA à Baffle. It includes labels for F, G, Ø d, and Ø D, indicating length, a measurement possibly related to the baffle, inner diameter, and outer diameter respectively.
Aerodynamic Data
| References | Pressure drop at 5 m/s (Pa) |
|---|---|
| 11094990 | 6 |
Acoustic Data
| References | Acoustic attenuation measured according to standard ISO 7235 at 1000 Hz (dB) | Acoustic attenuation measured according to standard ISO 7235 at 125 Hz (dB) | Acoustic attenuation measured according to standard ISO 7235 at 2000 Hz (dB) | Acoustic attenuation measured according to standard ISO 7235 at 250 Hz (dB) | Acoustic attenuation measured according to standard ISO 7235 at 4000 Hz (dB) | Acoustic attenuation measured according to standard ISO 7235 at 500 Hz (dB) | Acoustic attenuation measured according to standard ISO 7235 at 63 Hz (dB) | Acoustic attenuation measured according to standard ISO 7235 at 8000 Hz (dB) | Regeneration at 5 m/s at 1000 Hz (dB) | Regeneration at 5 m/s at 125 Hz (dB) |
|---|---|---|---|---|---|---|---|---|---|---|
| 11094990 | 31 | 5 | 39 | 11 | 29 | 20 | 4 | 15 | 23 | 36 |
Regulatory Data
| References | Fire Classification |
|---|---|
| 11094990 | A1 |
