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Aluminium rectangular louvres in standard dimensions with physical free area of 45%.
Brand
CAIROX
Application
For fresh air intake or exhaust, wall mounted.
Material
Aluminium
Colour
Anodized natural finish
Composition
Frame and blades of aluminium
Stainless steel INOX304 insectscreen mesh of 3 X 3 mm fitted behind the louvre
The weather resistant blades have a blade pitch of 30 mm.
Text for tender
The air intake or exhaust grilles shall have weather resistant blades with blade pitch of 30 mm. They shall be made of anodized aluminium in natural colour
CAIROX type BLR-1G
The air intake or exhaust grilles shall have weather resistant blades with blade pitch of 30 mm. They shall be made of anodized aluminium in natural colour
CAIROX type BLR-1G
Order example
BLR-1G, 400, 200
Explanation
BLR-1G = Type grill
400 = Length grill
200 = Height grill
Quick selection
BLR-1G
200x200
300x200
400x200
300x300
400x400
600x400
500x500
600x600
Q
Ak
0.018
0.027
0.036
0.041
0.072
0.108
0.113
0.162
100
Vk
1.5
1
0.8
Ps
9.1
4
2.3
Lw(A)
26
<20
<20
150
Vk
2.3
1.5
1.2
1
Ps
20.5
9
5.1
4
Lw(A)
39
28
21
<20
200
Vk
3.1
2.1
1.5
1.4
0.8
Ps
36.4
16
9
7.1
2.3
Lw(A)
47
37
29
26
<20
300
Vk
3.1
2.3
2.1
1.2
0.8
0.7
Ps
36.1
20.3
16
5.1
2.3
2.1
Lw(A)
49
42
39
24
<20
<20
400
Vk
4.1
3.1
2.7
1.5
1
1
Ps
64.1
36.1
28.5
9
4
3.7
Lw(A)
58
50
47
32
22
21
500
Vk
3.9
3.4
1.9
1.3
1.2
0.9
Ps
56.3
44.5
14.1
6.3
5.8
2.8
Lw(A)
57
54
39
28
27
<20
600
Vk
4.1
2.3
1.5
1.5
1
Ps
64.1
20.3
9
8.3
4
Lw(A)
60
45
34
33
23
800
Vk
3.1
2.1
2
1.4
Ps
36.1
16
14.8
7.1
Lw(A)
53
43
42
32
1000
Vk
3.9
2.6
2.5
1.7
Ps
56.3
25
23.1
11.1
Lw(A)
60
50
48
39
1200
Vk
3.1
3
2.1
Ps
36.1
33.2
16
Lw(A)
55
54
45
1400
Vk
3.6
3.5
2.4
Ps
49.1
45.2
21.8
Lw(A)
60
59
49
1600
Vk
4.1
4
2.7
Ps
64.1
59.1
28.5
Lw(A)
64
63
53
Symbols and specifications
Ps = Static pressure loss in Pa
Q = Air Volume in m³/h
Type = Hole LXH in wall in mm
Vk = Effective air velocity true the grille in m/s