Aldes OCTA D355 + Joint Acoustic Silencer
Model: 11094637
Product Overview
The Aldes OCTA D355 + joint is a circular acoustic silencer designed to significantly reduce the transmission of acoustic noise, particularly in the medium frequency range, within ventilation and air conditioning networks. It ensures acoustic comfort in tertiary and collective residential buildings while maintaining a very low air leakage rate, classified as Class D according to EN 1751.
This product is suitable for both new construction and renovation projects in collective residential housing and tertiary applications.
Key Features and Benefits
- High acoustic attenuation performance.
- Energy saving due to low pressure drop.
- Energy saving due to very low air leakage rate (Class D).
- Designed for easy installation directly between circular ductwork sections.
- Product fire classification: MO (equivalent to A1 according to Euroclasses).
- Available in a wide range of diameters from Ø 125 mm to Ø 1000 mm.
- Optionally available tested for 400°C - 2h.
Technical Specifications
Dimensions
| Reference | F (mm) | G (mm) | Ø d (mm) | Ø D (mm) | Weight (kg) |
|---|---|---|---|---|---|
| 11094637 | 910 | 1010 | 355 | 560 | 19.80 |
Acoustic Performance (Measured according to ISO 7235)
| Reference | Attenuation at 63 Hz (dB) | Attenuation at 125 Hz (dB) | Attenuation at 250 Hz (dB) | Attenuation at 500 Hz (dB) | Attenuation at 1000 Hz (dB) | Attenuation at 2000 Hz (dB) | Attenuation at 4000 Hz (dB) | Attenuation at 8000 Hz (dB) |
|---|---|---|---|---|---|---|---|---|
| 11094637 | 5 | 9 | 9 | 15 | 23 | 8 | 5 | 5 |
Regulatory Information
| Reference | Fire Classification |
|---|---|
| 11094637 | A1 |
Product Construction
- Outer casing: Full galvanized steel sheet.
- Inner casing: Perforated galvanized steel sheet.
- Jointed connection collars.
- Acoustic insulation: Mineral wool with glass veil.
- Insulation thickness: 100 mm.
Installation and Application
The OCTA D355 + joint silencer is designed to be installed directly between two circular ductwork sections within a ventilation or air conditioning system.
Domains of Application:
- Collective residential housing (new and renovation).
- Tertiary sector premises.
