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Aluminium swirl floor diffusers with horizontal or vertical air diffusion pattern
Brand
Cairox
Application
Adjustable circular diffuser with swirl air supply, suitable for false floor installation. May be used in rooms with a variable or constant air volume
Material
Aluminium and steel
Colour
Anodized natural finish
Other colours available upon request
Composition
Removable inner grille and front grille manufactured in sanded aluminium
Dust basket (also to be used as volume damper) and swirl unit made from sheet steel
3 Steel mounting straps for fixing of the diffuser frame into a floor tile
Mounting
To be mounted with 3 steel mounting straps for fixing of the diffuser frame into a floor tile
Text for tender
The air supply for rooms with variable or constant air volume can be made with circular diffuser with swirl air supply. Diffuser slots are designed to ensure a swirl air supply with high levels of induction, achieving reduced air velocities and a moderate temperature gradient in the occupied zone
Anodized natural finish
CAIROX Type ASFD
The air supply for rooms with variable or constant air volume can be made with circular diffuser with swirl air supply. Diffuser slots are designed to ensure a swirl air supply with high levels of induction, achieving reduced air velocities and a moderate temperature gradient in the occupied zone
Anodized natural finish
CAIROX Type ASFD
Order example
ASFD, 150
Explanation
ASFD = swirl floor diffuser
150= connection diameter (see table)
Quick selection
ASFD
150
200
Q
Ak
0.00495
0.00945
Dt
-4
-6
-8
-4
-6
-8
25
Y0,25
0.7
0.6
0.5
Vk
1.4
Ps
4
Lw(A)
<20
40
Y0,25
1
0.9
0.8
Vk
2.2
Ps
10
Lw(A)
25
60
Y0,25
1.6
1.4
1.2
0.8
0.7
0.6
Vk
3.4
1.8
Ps
24
5
Lw(A)
35
20
80
Y0,25
2.1
1.9
1.6
1.1
0.9
0.8
Vk
4.5
2.4
Ps
43
9
Lw(A)
42
27
100
Y0,25
1.3
1.1
1
Vk
2.9
Ps
13
Lw(A)
33
120
Y0,25
1.6
1.4
1.2
Vk
3.5
Ps
20
Lw(A)
37
150
Y0,25
2
1.7
1.5
Vk
4.4
Ps
31
Lw(A)
43
Symbols and specifications
Temperature difference Dt at -4, -6 and -8K
Y 0.25 = Vertical throw in m at vt = 0.25 m/s at Dt values
Ps = Static pressure loss in Pa
Lw (A)= Acoustic power in dB(A)
Q = Air Volume in m³/h
Ak= Effective area in m²
Vk = Effective velocity between the blades of the grille in m/s