Aldes OCTA à baffle D250 Acoustic Attenuator
Model: 11094990
Acoustic Performance
The OCTA à Baffle sound trap significantly reduces the propagation of acoustic noise (medium and high frequencies) within a circular duct system.
Key Product Features
- High acoustic attenuation performance.
- Energy efficient with low pressure drops.
- Energy efficient with low air leakage (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 OCTA à Baffle circular sound trap effectively reduces noise transmitted through ventilation systems, ensuring acoustic comfort in tertiary and collective buildings while maintaining excellent ductwork tightness. The product range covers diameters from Ø 250 mm to Ø 630 mm.
Application Areas
- Collective residential housing
- New construction
- Renovation
- Tertiary sector premises
Installation
Installs directly between two circular duct sections in the system.
Reference Specifications
Sound Trap
- Outer casing: solid galvanized steel sheet.
- Sealed connection collars.
- Inner casing: perforated galvanized steel sheet.
- Acoustic insulation: 50 mm mineral wool + glass veil.
- Fire classification: MO (equivalent to A1 according to Euroclass classification).
- Air tightness: Class C according to EN 1751 standard.
- Central baffle:
- Monobloc rock wool panels.
- Anti-fibrillation glass veil.
- Galvanized steel frame.
- Baffle integrated attack edges.
- 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 insulation 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 |
Aerodynamic Data
| References | Pressure drop at 5 m/s (Pa) |
|---|---|
| 11094990 | 6 |
Acoustic Data
| References | 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) |
|---|---|---|---|---|---|---|---|---|---|---|
| 11094990 | 4 | 5 | 11 | 20 | 31 | 39 | 29 | 15 | 23 | 36 |
Regulatory Data
| References | Fire Classification |
|---|---|
| 11094990 | A1 |
For more information, contact your Aldes advisor.
RCS Lyon 956 506 828 - Aldes reserves the right to make any modifications to its products related to technical evolution. - Non-contractual information.
