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BDU20K Performance Table

CFMStatic Pressure in Inches W.G.
0.0000.2500.5000.7501.0001.2501.5001.7502.000
RPM
Sone/BHP
RPM
Sone/BHP
RPM
Sone/BHP
RPM
Sone/BHP
RPM
Sone/BHP
RPM
Sone/BHP
RPM
Sone/BHP
RPM
Sone/BHP
RPM
Sone/BHP
2700490
4.8 / 0.12
584
6.2 / 0.23
684
8.0 / 0.38
774
9.5 / 0.53
862
11.3 / 0.70
 
 
 
 
 
 
 
 
3200581
6.9 / 0.20
657
8.3 / 0.33
744
10.3 / 0.49
825
10.5 / 0.66
902
12.2 / 0.84
976
14.0 / 1.03
1050
15.4 / 1.24
 
 
 
 
3700672
9.6 / 0.31
735
11.0 / 0.46
810
11.5 / 0.63
884
12.4 / 0.82
954
13.5 / 1.02
1020
15.0 / 1.23
1085
16.1 / 1.44
1148
17.6 / 1.67
1212
19.7 / 1.92
4200763
12.5 / 0.45
817
12.5 / 0.61
881
13.5 / 0.80
947
14.7 / 1.01
1012
16.0 / 1.22
1073
16.6 / 1.45
1132
17.5 / 1.69
1189
19.0 / 1.93
 
 
4700853
14.4 / 0.63
901
15.8 / 0.81
956
16.2 / 1.01
1015
17.2 / 1.23
1074
17.7 / 1.47
1131
18.7 / 1.71
1187
20 / 1.97
 
 
 
 
5200944
17.3 / 0.85
986
19.0 / 1.05
1034
18.9 / 1.27
1087
19.1 / 1.50
1141
20 / 1.75
 
 
 
 
 
 
 
 
57001035
21 / 1.12
1073
21 / 1.34
1115
21 / 1.57
1162
22 / 1.82
 
 
 
 
 
 
 
 
 
 
62001126
24 / 1.44
1160
24 / 1.68
1199
25 / 1.93
 
 
 
 
 
 
 
 
 
 
 
 
67001217
28 / 1.82
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Max Sizeable RPM = 1600 RPM. Table shown extended beyond this point for reference only.

Performance shown is for installation type A:  Free inlet, Free outlet. Performance ratings do not include the effects of appurtenances in the airstream. The sound ratings shown are loudness values in fan sones at 5 ft (1.5m) in a hemispherical free field calculated per AMCA Standard 301. Values shown are for Installation Type A: free inlet fan sone levels.

Catalog #109K
March 2009