Noise Data - Lindab SDJR-S Technical Manual

Smoke Control Damper

10. Noise data

7.1. Sound power level corrected with filter A
Tab. 7.1.1. Sound power level Lw in dB(A) for B=250/300/450mm, damper fully open
f (Hz)
2
3
4
5
6
7
8
9
10
11
12
w - air velocity in the free cross section (AxB) - i.e. before blades
f - frequency of octave band
Tab. 7.1.2. Sound power level Lw in dB(A) for B=350/500/700/900/1100mm, damper fully open
f (Hz)
2
3
4
5
6
7
8
9
10
11
12
63 125 250
16 24 29
25 33 38
32 40 45
38 46 51
42 50 55
46 54 59
49 57 62
50 58 63
53 61 66
55 63 68
57 65 70
63 125 250
15 23 28
24 32 37
31 39 44
36 44 49
41 49 54
45 53 58
48 56 61
49 57 62
51 59 64
53 61 66
55 63 68
Lindab reserves the right to make changes without prior notice
Last modified: 2021-09-03
l in d a b | we s i mp l if y con s t r uct i on
500 1000 2000
29 28
38 37
45 44
51 50
55 54
59 58
62 61
63 62
66 65
68 67
70 69
500 1000 2000
28 27
37 36
44 43
49 48
54 53
58 57
61 60
62 61
64 63
66 65
68 67
Rev: 2021-03-26
SDJR-S
4000 8000
26 23 9
35 32 18
42 39 25
48 45 31
52 49 35
56 53 39
59 56 42
60 57 43
63 60 46
65 62 48
67 64 50
4000 8000
25 22 8
34 31 17
41 38 24
46 43 29
51 48 34
55 52 38
58 55 41
59 56 42
61 58 44
63 60 46
65 62 48
Total
35
44
51
57
61
65
68
69
72
74
76
Total
34
43
50
55
60
64
67
68
70
72
74
19