Aluminium swirl floor diffusers with horizontal or vertical air diffusion pattern
Explanation
ASFD = swirl floor diffuser
150= connection diameter (see table)
Quick selection
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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
Placement instruction
Dimensions
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150 | 190 | 154 | 149 | 14 | 32 | 200 | 240 | 204 | 199 |
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