Sound Attenuators
Rectangular Sound Attenuator
Rectangular duct sound attenuator with acoustic splitters for reducing fan and air-system noise. Manufactured to suit duct size, selected insertion loss and pressure drop.
| Construction | Galvanized steel outer casing |
| Acoustic media | Glass wool / rockwool with perforated metal liner |
| Connection | Duct flange ends |
| Length | 900, 1200, 1500, 1800, 2400 mm typical |
| Options | Melamine lining / packless design by request |
| Size basis | Duct W x H x length in mm |
Performance Data
Technical Specifications
| Model | Size (mm) | Material Type | Paint Type |
|---|---|---|---|
| AW-RSA-300x300x900 | 300 x 300 | 900 length | Medium IL |
| AW-RSA-600x300x1200 | 600 x 300 | 1200 length | Medium IL |
| AW-RSA-800x400x1500 | 800 x 400 | 1500 length | High IL |
| AW-RSA-1000x500x1800 | 1000 x 500 | 1800 length | High IL |
| AW-RSA-1200x600x2400 | 1200 x 600 | 2400 length | Project selected |
* Values are nominal and subject to manufacturing tolerances. Consult Air-Way technical support for project-specific sizing, finishes or performance data.
Where It’s Used
Key Applications
Rectangular silencers are selected using octave-band insertion loss and allowable pressure drop. Length and splitter arrangement can be adapted to project noise criteria.
AHU discharge
Generator rooms
Fan rooms
Studios and halls
Noise-sensitive spaces
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