Aldes OCTA à baffle D400
Acoustic Silencer
Product Overview
The Aldes OCTA à Baffle is an acoustic silencer designed to significantly reduce the propagation of acoustic noise, particularly in the medium and high-frequency ranges, within circular ventilation networks. It ensures acoustic comfort in tertiary and collective buildings while maintaining excellent network airtightness.
Key Product Features:
- High acoustic attenuation performance.
- Energy efficiency with low pressure drops.
- Energy efficiency with low leakage rate (Class C airtightness).
The product range covers diameters from Ø 250 mm to Ø 630 mm.
Applications:
- Collective residential housing
- New construction
- Renovation
- Tertiary buildings
Technical Specifications
General Data
| Reference | Insulation Density (kg/m³) | Insulation Thickness (mm) | Baffle Insulation Thickness (mm) | Main Material | Insulation Material | Baffle Insulation Material | Weight (kg) | |
|---|---|---|---|---|---|---|---|---|
| 11094993 | 55 | 17 | 50 | 100 | Galvanized Steel | Rock Wool | Rock Wool | 20 |
Dimensional Data
| Reference | F (mm) | Ø d (mm) | Ø D (mm) |
|---|---|---|---|
| 11094993 | 900 | 400 | 500 |
Aerraulic Data
| Reference | Pressure Drop at 5 m/s (Pa) |
|---|---|
| 11094993 | 7 |
Acoustic Data
| Reference | Acoustic Attenuation measured according to ISO 7235 at 63 Hz (dB) | Acoustic Attenuation measured according to ISO 7235 at 125 Hz (dB) | Acoustic Attenuation measured according to ISO 7235 at 250 Hz (dB) | Acoustic Attenuation measured according to ISO 7235 at 500 Hz (dB) | Acoustic Attenuation measured according to ISO 7235 at 1000 Hz (dB) | Acoustic Attenuation measured according to ISO 7235 at 2000 Hz (dB) | Acoustic Attenuation measured according to ISO 7235 at 4000 Hz (dB) | Acoustic Attenuation measured according to ISO 7235 at 8000 Hz (dB) | Regeneration at 5 m/s at 1000 Hz (dB) | Regeneration at 5 m/s at 125 Hz (dB) |
|---|---|---|---|---|---|---|---|---|---|---|
| 11094993 | 3 | 4 | 6 | 16 | 30 | 30 | 14 | 10 | 30 | 41 |
Regulatory Data
| Reference | Fire Classification |
|---|---|
| 11094993 | A1 |
Product Construction Details
Main Silencer Unit:
- Outer casing: Full galvanized steel sheet.
- Connection collars: With gasket.
- Inner casing: Perforated galvanized steel sheet.
- Acoustic insulation: Mineral wool + glass veil.
- Insulation thickness: 50 mm up to Ø 500 mm, and 100 mm for larger diameters.
- Fire classification: MO (Euroclass A1).
- Airtightness: Class C (according to EN 1751 standard).
Central Baffle:
- Construction: Monobloc rock wool panels.
- Glass veil: Anti-fibrillation.
- Frame: Galvanized steel.
- Leading edges: Integrated into the baffle.
- Baffle thickness: 50 mm up to Ø 355 mm, and 100 mm for larger diameters.
- Fire classification: M1.
