BDW FRP low-noise roof fan is widely used for comprehensive exhaust and partial exhaust of various industrial and civil buildings, especially in hotels, schools, hospitals, conference halls, theaters and other places where quiet is required.
Impeller Dia.
Speed
Power
Flow rate
Noise
dB(A)
5 mmHg
10 mmHg
15 mmHg
250
1450
0.06
927
740
432
49
300
1450
0.09
1784
1120
840
50
350
1450
0.12
2930
2010
1130
52
40
1450
0.25
4800
3920
2710
53
450
1450
0.55
8431
6870
5810
55
500
1450
0.55
9300
8024
7430
58
550
1450
0.75
14530
9765
8740
58
600
960
0.75
16052
13740
10420
56
700
960
1.50
20350
18330
15400
59
800
960
1.50
35200
23500
20370
59
900
740
2.20
34340
26500
22700
65
1000
740
2.20
42300
33430
24350
74
