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Link to CAB Fans - Ducting - Fan Size Calculator & Ventilation Index


 

CAB Fan Dimensions (mm)
Fan
A
B
C
D
E
F
Sound Level
CAB - 125
273
388
395
125
125
162
37 db
CAB - 160
273
388
395
160
143
162
40 db
CAB - 200
328
430
365
200
216
210
42 db
CAB - 250
383
525
450
250
263
237
46 db
CAB - 315
443
600
505
315
301
264
54 db
CAB - 400
513
660
600
400
331
292
66 db


Expected output when using with Ducting

Typical "CAB" Centrfugal Fan Output at set distances using Smooth Bore Pipe
m3 / hr @
Fan
Duct dia
( mm )
0 Mts
3 Mts
5 Mts
10 Mts
15 Mts
20 Mts
Max Duct Length
CAB125
125
- 320
- 308
- 300
- 280
- 260
- 240
28
CAB160
160
- 390
- 384
- 380
- 370
- 360
- 350
75
CAB200
200
- 695
- 685
- 676
- 660
- 642
- 625
85
CAB250
250
1250
1233
1222
1195
1167
1140
60
CAB315
315
2100
2067
2045
1990
1935
1880
80
CAB400
400
3950
3869
3815
3680
3545
3410
90

These calculations are based on straight runs of smooth sided circular ducting.
The use of outlet grilles curves / bends or of corrugated or spiral duct will have the effect of reducing the length of duct that can be used without causing the fan to go into aerodynamic stall (i.e. the fan continues to rotate but no air extract will take place).

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