Aldes OCTA D400 + Joint Acoustic Silencer
The Aldes OCTA D400 + joint is an acoustic silencer designed to significantly reduce the transmission of acoustic energy, particularly in the mid-frequency range, within circular ductwork systems. It ensures minimal air leakage, contributing to energy efficiency and optimal acoustic comfort in buildings.
Product Overview
The OCTA D400 + joint silencer is engineered to attenuate noise transmitted through ventilation and air conditioning networks, thereby enhancing acoustic comfort in tertiary and collective residential buildings. It offers a high level of airtightness, meeting Class D standards. The product is available in a wide range of diameters, from 125 mm to 1000 mm.
Key Features:
- High acoustic attenuation performance.
- Energy efficiency due to low pressure drops.
- Energy efficiency due to very low leakage rate (Class D airtightness).
- Designed for direct insertion between circular ductwork components.
- Circular silencer OCTA D400 with joint for strong attenuation of noise propagation in ventilation or air conditioning networks in collective or tertiary buildings.
- Very low leakage rate: product airtightness Class D according to EN 1751 standard.
- Length: 900 mm.
- Galvanized steel casing.
- Internal insulation with mineral wool covered by a glass veil: 100 mm thickness.
- Complete product fire certification MO.
Technical Specifications
Dimensions
| Reference | F (mm) | G (mm) | Ø d (mm) | Ø D (mm) | Weight (kg) |
|---|---|---|---|---|---|
| 11094638 | 910 | 1010 | 400 | 600 | 24.50 |
Acoustic Performance (Measured according to ISO 7235 standard)
| Reference | Acoustic Attenuation at 1000 Hz (dB) | Acoustic Attenuation at 125 Hz (dB) | Acoustic Attenuation at 2000 Hz (dB) | Acoustic Attenuation at 250 Hz (dB) | Acoustic Attenuation at 4000 Hz (dB) | Acoustic Attenuation at 500 Hz (dB) | Acoustic Attenuation at 63 Hz (dB) | Acoustic Attenuation at 8000 Hz (dB) |
|---|---|---|---|---|---|---|---|---|
| 11094638 | 20 | 4 | 5 | 9 | 3 | 14 | 3 | 4 |
Regulatory Data
| Reference | Fire Classification |
|---|---|
| 11094638 | A1 |
Operating Principles
The interior of the OCTA silencer is lined with mineral wool and a glass veil to effectively attenuate sound waves.
Product Description
The circular OCTA silencer with joint effectively reduces noise transmission within ventilation networks, ensuring acoustic comfort in tertiary and collective residential buildings. It provides excellent airtightness for the entire network. The product line covers diameters from 125 mm to 1000 mm.
Application Areas
Residential collective housing, new construction, renovation projects, and tertiary premises.
Installation
The silencer is designed for direct insertion between circular ductwork components within the ventilation system.
General Information
- Outer casing made of solid galvanized sheet metal.
- Inner casing made of perforated galvanized sheet metal.
- Jointed connection collars.
- Acoustic insulation: mineral wool with glass veil.
- Fire classification MO (equivalent to A1 according to Euroclasses).
- Version tested for 400°C - 2h available upon request.
- Product airtightness Class D according to EN 12237.
