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Swirl diffuser SD-B

Ceiling diffusers > Swirl diffuser SD-B
Ceiling diffusers > Swirl diffuser SD-B
  • Ceiling diffusers > Swirl diffuser SD-B
  • Ceiling diffusers > Swirl diffuser SD-B

Material and colour:

  • pressed galvanized steel (diffuser elements);
  • RAL 9003.

Product characteristics:

  • fixed blades provide even air distribution;
  • swirl air supply provides fast room temperature equalization;
  • powder-coated;
  • suitable for hot or cold air supply and exhaust;
  • easy installation in standard suspended ceiling.
øD [mm] A [mm] Packaging [pcs]
SD-B 300 259 595 5
SD-B 400 339 595 5
SD-B 500 442 595 5
SD-B 600 531 595 5

Diffusers displacement:

V [m³/h]: air volume
H1 [m]: distance from the people area
A, B [m]: interval between two diffusers.

Technical parameters:

H1 [m] V [m³/h] 145 180 215 250 325
Vn1 [m/s] A [m]
0.9 0.10 4.0 4.5 5.3 5.7 6.0
0.15 - 3.7 4.4 5.0 5.6
0.20 - - - 4.2 5.0
0.25 - - - - 4.5
1.2 0.10 - 3.8 4.6 5.3 5.7
0.15 - - - 4.1 4.9
0.20 - - - - 4.0
1.6 0.10 - - 3.0 4.4 5.2
0.15 - - - - 4.0
2.0 0.10 - - - 3.0 4.6

V: air volume;
A: interval between two diffusers;
Vn1: mean speed of air flow between two diffuser up to distance H1;
H1: distance from the people area.

Air exhaust:

Air performance
[m³/h]
Total pressure loss
[Pa]
Noise level
[dB(A)]
SD-B 300 150 16.0 20
250 40.0 35
350 80.0 44
SD-B 400/500 250 8.0 <20
350 16.0 27
500 36.0 40
700 70.0 50
900 120.0 55
SD-B 600 350 8.5 <20
500 22.0 26
700 38.0 35
900 65.0 43

Air supply:

Air performance
[m³/h]
Total pressure loss
[Pa]
Noise level
[dB(A)]
SD-B 300 100 6.5 <20
150 13.0 24
250 35.0 37
400 9.0 53
500 140.0 65
SD-B 400 150 4.5 <20
200 9.0 <20
300 18.0 28
400 36.0 38
500 50.0 44
SD-B 500 180 4.5 <20
250 13.0 <20
350 35.0 27
550 9.0 42
700 140.0 47
SD-B 600 300 6.0 <20
400 10.0 22
600 20.0 32
800 38.0 42
1200 85.0 55

Contacts

For general inquiries - please e-mail us at: sales@directvent.eu

You can also contact our sales people in Poland directly.

Warsaw