방음루바(Noishield Louvers)
방음루바 사진 - 실내부(타공 흡음면)
방음루바 사진 - 실외부(하단부에 설치)
방음루바 제작 규격
Aerodynamic Performance Data
| STATIC PRESSURE DROUP IN INCHES OF WATER | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 방음루버 MODEL (Noishield Louvers) |
.05 | .10 | .15 | .20 | .25 | .30 | .40 | .50 | .60 | .75 | 1.0 | 1.25 |
| FACE VELOCITY IN FPM | ||||||||||||
| Model R Model LP |
215 270 |
305 380 |
375 465 |
430 540 |
480 600 |
525 660 |
610 760 |
675 850 |
745 925 |
830 1040 |
960 120 |
1070 1340 |
Acoustical Performance Data
| OCTAVE BANDS(Hz) | ||||||||
|---|---|---|---|---|---|---|---|---|
| Octave Band Number Center Frequency |
1 63 |
2 125 |
3 250 |
4 500 |
5 1000 |
6 2000 |
7 4000 |
8 8000 |
| TRANSMISSON LOSS IN DECIBELS(dB) | ||||||||
| Model R Model LP |
5 4 |
7 5 |
11 8 |
12 9 |
12 12 |
14 9 |
12 7 |
9 6 |
| FREE FIELD NOISE REDUCTION IN DECIBELS(dB) | ||||||||
| Model R Model LP |
11 10 |
13 11 |
17 14 |
18 15 |
19 18 |
20 15 |
18 13 |
15 12 |