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Aluminium rectangular louvres (not standard dimensions) with physical free area of 50%
Brand
Cairox
Application
For fresh air intake or exhaust, wall mounted.
Material
Aluminium
Colour
Anodized natural finish
Powder coated in RAL-colours upon request
Composition
Frame and blades of aluminium
Stainless steel INOX304 insectscreen mesh of 2.3 x 2.3 mm fitted behind the louvre
The weather resistant blades have a blade pitch of 33 mm.
Can also be produced in standard dimension, type BLR-1
Mounting
To be mounted by means of mounting brackets
Accessories
Mounting brackets (included)
Other available products
Galvanized steel louver with larger effective area, type BLR-S50
Anodized Aluminium louver with a larger effective area, type BLR-A60
Text for tender
The air intake or exhaust grilles shall have weather resistant blades with blade pitch of 33 mm. They shall be made of anodized aluminium in natural colourin all possible dimensions
CAIROX type BLR-1M
The air intake or exhaust grilles shall have weather resistant blades with blade pitch of 33 mm. They shall be made of anodized aluminium in natural colourin all possible dimensions
CAIROX type BLR-1M
Order example
BLR-1M, 700, 200
Explanation
BLR-1M = Type grill
700 = Length grill
200 = Height grill
Quick selection
Q
Type
200x200
300x300
400x400
500x500
600x600
700x700
800x800
1000x1000
1200x1200
Ak
0.020
0.045
0.080
0.125
0.180
0.245
0.320
0.500
0.720
100
Vk
1.39
Ps
5.92
Lw(A)
20.2
200
Vk
2.78
1.23
Ps
23.7
4.68
Lw(A)
41.1
20.1
300
Vk
1.85
1.04
Ps
10.5
3.3
Lw(A)
32.6
17.3
400
Vk
2.46
1.39
0.89
Ps
18.7
5.9
2.43
Lw(A)
41.2
26.2
14.2
500
Vk
3.08
1.74
1.11
Ps
29.2
9.25
3.79
Lw(A)
47.8
33.1
21.2
600
Vk
2.08
1334
0.93
Ps
13.3
5.46
2.63
Lw(A)
38.6
26.9
17
800
Vk
2.78
1.78
1.23
0.91
Ps
23.7
9.7
4.68
2.53
Lw(A)
47.2
35.8
26.1
17.7
1000
Vk
2.22
1.55
1.13
0.87
Ps
15.2
7.31
3.95
2.31
Lw(A)
42.5
33
24.8
17.5
1200
Vk
2.66
1.85
1.36
1.04
Ps
21.8
10.5
5.68
3.33
Lw(A)
47.9
38.6
30.5
23.3
1400
Vk
3.12
2.16
1.59
1.22
Ps
29.7
14.3
7.74
4.53
Lw(A)
52.4
43.2
35.2
28.1
1800
Vk
2.78
2.04
1.56
1
Ps
23.7
12.8
7.5
3.07
Lw(A)
50.7
42.8
35.9
23.9
2000
Vk
3.08
2.26
1.74
1.11
Ps
29.2
15.8
9.25
3.79
Lw(A)
53.8
46
39.1
27.2
3000
Vk
3.4
2.6
1.67
1.16
Ps
35.5
20.8
8.53
4.11
Lw(A)
57.9
51.3
39.8
30.1
4000
Vk
3.48
2.22
1.54
Ps
37
15.2
7.31
Lw(A)
59.7
48.5
39
5000
Vk
2.78
1.93
Ps
23.7
11.4
Lw(A)
55.1
45.8
6000
Vk
3.34
2.32
Ps
34.1
16.5
Lw(A)
60.5
51.3
8000
Vk
3.08
Ps
29.2
Lw(A)
59.8
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