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BDU18K 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
2000524
4.2 / 0.09
638
6.0 / 0.18
733
7.7 / 0.28
822
9.0 / 0.39
 
 
 
 
 
 
 
 
 
 
2500655
7.4 / 0.17
750
9.5 / 0.28
833
10.3 / 0.40
907
11.0 / 0.52
978
11.6 / 0.66
1047
12.1 / 0.80
1127
13.8 / 0.98
 
 
 
 
3000786
11.2 / 0.29
866
12.2 / 0.42
940
12.8 / 0.56
1007
13.0 / 0.70
1069
12.5 / 0.85
1129
13.8 / 1.01
1188
15.0 / 1.17
1248
16.1 / 1.35
1310
17.3 / 1.55
3500916
13.9 / 0.46
986
14.8 / 0.61
1052
14.6 / 0.77
1113
15.1 / 0.94
1170
16.4 / 1.10
1224
17.6 / 1.27
1276
18.0 / 1.45
1327
18.5 / 1.64
1377
19.0 / 1.83
40001047
15.6 / 0.69
1108
17.1 / 0.86
1168
17.7 / 1.04
1224
19.4 / 1.23
1276
20 / 1.41
1326
20 / 1.60
1374
21 / 1.80
1420
21 / 2.00
 
 
45001178
19.0 / 0.98
1232
21 / 1.18
1286
22 / 1.38
1337
22 / 1.58
1386
23 / 1.79
1433
24 / 2.00
 
 
 
 
 
 
50001309
24 / 1.35
1358
24 / 1.56
1406
25 / 1.78
 
 
 
 
 
 
 
 
 
 
 
 
55001440
27 / 1.80
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Max Sizeable RPM = 1800 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