23
Performance certified is for installation Type B - Free inlet, Ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings do not include the
effects of appurtenances (accessories). The AMCA Certified Ratings Seal applies to air performance only.
Wheel Diameter = 25
(635)
Shaft Diameter = 1
1
⁄
2
(38)
Outlet Area = 4.21 ft
2
(0.391 m
2
)
Mounting Hole Size = 5/8
(16)
^Approximate Unit Weight = 700 lb.
(318 kg)
All dimensions in inches
(millimeters)
For additional discharge positions see page 12
^Weight shown is largest cataloged Open Drip Proof motor
SFB-25 - Belt Drive
CFM
OV
Static Pressure in Inches wg
0.25
0.5
0.75
1
1.25
1.5
2
2.5
3
3.25
6000
1425
RPM
246
310
363
412
BHP
0.74
1.03
1.32
1.65
Sones
8.4
10.4
12.5
14.5
6950
1651
RPM
263
324
375
419
463
BHP
1.02
1.37
1.72
2.05
2.42
Sones
10.3
11.9
14.3
15.8
17.3
7900
1877
RPM
283
338
387
431
470
508
BHP
1.39
1.78
2.17
2.57
2.95
3.34
Sones
12.1
13.7
16.2
17.3
18.6
20
8850
2103
RPM
304
354
401
444
482
518
585
BHP
1.85
2.29
2.73
3.15
3.61
4.03
4.93
Sones
14.1
15.7
17.9
19.0
20
22
25
9800
2329
RPM
326
372
416
457
495
530
593
654
BHP
2.40
2.87
3.36
3.86
4.32
4.83
5.76
6.81
Sones
16.1
18.0
19.6
21
22
23
26
29
10750 2554
RPM
349
391
432
471
508
542
605
660
716
743
BHP
3.07
3.58
4.12
4.65
5.19
5.70
6.79
7.78
8.96
9.57
Sones
18.4
20
21
23
24
25
27
30
33
35
11700 2780
RPM
373
412
450
487
522
556
617
672
722
748
BHP
3.86
4.42
4.99
5.57
6.16
6.73
7.89
9.05
10.11
10.74
Sones
21
22
23
25
26
28
29
32
35
36
12650 3006
RPM
397
433
468
504
537
569
629
684
734
BHP
4.78
5.37
5.96
6.62
7.22
7.88
9.07
10.39
11.62
Sones
23
24
25
27
28
30
32
34
36
13600 3232
RPM
421
455
488
521
553
584
643
696
746
BHP
5.84
6.46
7.13
7.79
8.48
9.13
10.51
11.82
13.21
Sones
25
26
27
29
31
32
34
36
39
14550 3457
RPM
445
478
510
539
570
600
657
709
BHP
7.04
7.72
8.43
9.09
9.86
10.58
12.04
13.43
Sones
27
29
30
31
33
34
36
39
15500 3683
RPM
471
501
531
559
588
617
671
723
BHP
8.43
9.15
9.88
10.62
11.37
12.18
13.68
15.26
Sones
29
31
33
34
35
36
39
42
40
3
⁄
8
(1026)
31
5
⁄
8
(803)
1
1
⁄
2
(38)
31
1
⁄
8
(791)
33
5
⁄
8
(854)
26
1
⁄
4
(667)
17
1
⁄
2
(445)
31
1
⁄
2
(800)
57
3
⁄
4
(1467)
45
3
⁄
4
(1162)
25
(635)
19
1
⁄
2
(495)
2
1
⁄
2
(64)
25
7
⁄
8
(657)
41
1
⁄
2
(1054)
19
7
⁄
8
(505)
36
(914)
Do
n
ot
s
e
le
c
t
to
t
h
e
l
e
ft
o
f
th
is
s
y
s
te
m
c
u
rv
e
cfm
Maximum BHP at given RPM = (RPM/304)
3
(
Maximum KW at a given RPM = (RPM/335)
3
)
Maximum RPM = 750 and Minimum RPM = 190
Tip Speed (ft/min.) = RPM x 6.54
(Tip Speed (m/s) = RPM x 0.0332)
Maximum Motor Frame Size = 284T
SFB-25
