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lin da b | we s im pli f y co ns tr u c t io n
Smoke Control Damper
Tab. 7.1.3. Sound power level Lw in dB(A) for B=200/400/600/800/1000/1200mm, 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
Material, finish
8. Material
8.1. Damper casing and damper blade are made of galvanized plate without any other surface finish.
8.2. Fasteners are galvanized.
8.3. The actuator cover is made of fire-resistant material (fire protection board)
Inspection, testing
9. Inspection, testing
9.1. 9.1. The appliance is constructed and preset by the manufacturer, its operation is dependent on proper installation and
adjustment.
20
63
125
250
13
21
26
21
29
34
28
36
41
34
42
47
38
46
51
42
50
55
45
53
58
47
55
60
48
56
61
50
58
63
52
60
65
Lindab reserves the right to make changes without prior notice
Last modified: 2021-09-03
500
1000
2000
26
25
34
33
41
40
47
46
51
50
55
54
58
57
60
59
61
60
63
62
65
64
Rev: 2021-03-26
SDJR-S
4000
8000
23
20
6
31
28
14
38
35
21
44
41
27
48
45
31
52
49
35
55
52
38
57
54
40
58
55
41
60
57
43
62
59
45
Total
32
40
47
53
57
61
64
66
67
69
71
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