ALW30 and and ALW 50 acoustic louver models provied acoustic solutions for situations where space and location do not allow installation of a full sized silencer.
The shutters are made of a "W" shaped maze through which air flows passing through high capability adsorbent materials.
The shutters are primarily used for:
- Air returns for air conditioning systems
- Inlet/Outlet in machine rooms dividing walls
- 600mm deep
- Height and width according to custom needs
- Galvanized steel construction or painted according to demand
- Anti birds netting and rain protection on request
- Nonflammable materials
|
SOUND ATTENUATION (dB) Vs. FREQUENCY (HZ) |
TYPE |
||||||
|
4000 |
2000 |
1000 |
500 |
250 |
125 |
63 |
|
|
19 |
20 |
23 |
18 |
13 |
9 |
5 |
AL-50-W |
|
26 |
27 |
28 |
21 |
17 |
11 |
6 |
AL-33-W |
