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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)
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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