CLA
Compact sound attenuator for circular ducts
Compact sound attenuator for circular ducts
A rectangular sound attenuator with circular connection spigots. Unique properties regarding installation height, fire-resistance class, fibre-migration proof design and sound attenuation. Patent-pending self-supporting fibre-migration proof surface lining and end wall solution.
Key Features
| Duct Sizes | 4″, 5″, 6″, 8″, 10″ 12″ and 16″ |
| Lengths | 20″ and 40″ |
Basic Operation
The CLA sound attenuator offers the following advantages:
- Extremely low installation height.
- Very good sound attenuation
- Fibre-migration proof
- Airtightness class D
- Low-pressure drop
- Included in the MagiCAD database
Applications
| Size | Length (mm) | ⌀d (mm) | H (mm) | Static integral attenuation, db to ISO 7235 | Weight (kg) | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 63 | 125 | 250 | 500 | 1K | 2K | 4K | 8K | |||||
| 100 | 500 | 99 | 152 | 7 | 9 | 14 | 26 | 34 | 42 | 35 | 26 | 3.2 |
| 1000 | 99 | 152 | 7 | 17 | 26 | 44 | 50 | 50 | 50 | 39 | 6.0 | |
| 125 | 500 | 124 | 177 | 5 | 9 | 13 | 21 | 29 | 35 | 31 | 20 | 3.9 |
| 1000 | 124 | 177 | 7 | 16 | 23 | 39 | 50 | 50 | 47 | 35 | 7.2 | |
| 160 | 500 | 159 | 212 | 5 | 8 | 13 | 17 | 23 | 31 | 21 | 17 | 5.0 |
| 100 | 159 | 212 | 7 | 13 | 22 | 32 | 45 | 50 | 38 | 25 | 9.2 | |
| 200 | 500 | 199 | 252 | 5 | 8 | 11 | 15 | 20 | 22 | 14 | 14 | 6.3 |
| 1000 | 199 | 252 | 7 | 13 | 20 | 28 | 40 | 45 | 27 | 20 | 11.7 | |
| 250 | 500 | 249 | 302 | 5 | 6 | 8 | 11 | 15 | 16 | 10 | 7 | 8.5 |
| 1000 | 249 | 302 | 6 | 11 | 15 | 20 | 28 | 31 | 18 | 14 | 15.7 | |
| 315 | 500 | 314 | 367 | 4 | 6 | 7 | 9 | 12 | 8 | 8 | 5 | 11.0 |
| 1000 | 314 | 367 | 6 | 10 | 12 | 17 | 24 | 21 | 12 | 7 | 20.2 | |
| 400 | 500 | 399 | 458 | 4 | 6 | 7 | 9 | 12 | 8 | 6 | 4 | 15.1 |
| 1000 | 399 | 458 | 5 | 9 | 12 | 16 | 23 | 14 | 8 | 6 | 27.5 | |
Dimensions
| Size | B (mm) | C (mm) | ⌀d (mm) | H (mm) | L | |
|---|---|---|---|---|---|---|
| mm | mm | |||||
| 100 | 208 | 45 | 99 | 152 | 500 | 1000 |
| 125 | 236 | 45 | 124 | 177 | 500 | 1000 |
| 160 | 274 | 45 | 159 | 212 | 500 | 1000 |
| 200 | 321 | 45 | 199 | 252 | 500 | 1000 |
| 250 | 394 | 45 | 249 | 302 | 500 | 1000 |
| 315 | 462 | 45 | 314 | 367 | 500 | 1000 |
| 400 | 553 | 70 | 399 | 458 | 500 | 1000 |
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