Filter
Top Products
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 sound power level ratings shown are in decibels, referred to 10-12 watts, calculated per AMCA Standard 301. Values shown
are for inlet LwiA sound power levels and inlet hemispherical sone levels for installation type B: Free inlet, Ducted outlet, calculated per AMCA Standard 301. The AMCA
Certified Ratings Seal applies to air performance and LwiA values only.
53
SWB-333-AF - Belt Drive
Series 300
Wheel Diameter = 33 (838)
Shaft Diameter = 1
15
⁄16 (49)
Outlet Area = 6.26 ft
2
(0.582 m
2
)
^Approximate Unit Weight = 1166 lb. (530 kg)
All dimensions in inches (millimeters)
For additional discharge positions see page 13
^Weight shown includes largest cataloged Open Drip Proof motor and weatherhood
Maximum BHP at a given RPM = (RPM/482)
3
(Maximum KW at a given RPM = (RPM/531)
3
)
Maximum RPM = 1186
Tip Speed (ft/min.) = RPM x 8.64
(Tip Speed (m/s) = RPM x 0.0439)
Maximum Motor Frame Size = 256T
74
9
⁄16
(1894)
31
7
⁄8 (810)
41
9
⁄16 (1056)
3
1
⁄2
(89)
34
9
⁄16
(878)
40
(1016)
35
(889)
55
9
⁄16
(1175)
60
3
⁄4
(1543)
38
3
⁄4 (984)
56
3
⁄8 (1432)
60
9
⁄16 (1538)
33
3
⁄8
(848)
26
3
⁄16
(665)
38
1
⁄4
(813)
25
(635)
4
3
⁄16
(106)
CFM OV
Static Pressure in Inches wg
0.5 1 1.5 2 2.5 3 3.5 4 4.5 5
9000 1437
RPM 541 613 679 742 801
BHP 1.25 2.01 2.79 3.61 4.42
Sones / LwiA 12.3 / 75 14.1 / 77 16.3 / 79 19.4 / 81 21 / 82
10000 1597
RPM 584 652 714 772 828 881
BHP 1.52 2.36 3.21 4.09 5.01 5.91
Sones / LwiA 14.3 / 77 16.1 / 79 17.7 / 80 20 / 82 24 / 83 25 / 85
11000 1757
RPM 628 692 751 805 858 909 956 1003
BHP 1.84 2.75 3.67 4.62 5.61 6.62 7.63 8.55
Sones / LwiA 16.5 / 79 17.8 / 81 19.2 / 82 21 / 83 25 / 84 31 / 86 31 / 87 31 / 89
12000 1916
RPM 674 734 789 841 890 938 985 1029 1072
BHP 2.21 3.20 4.19 5.21 6.25 7.33 8.44 9.58 10.6
Sones / LwiA 18.9 / 82 19.4 / 82 21 / 83 22 / 84 25 / 85 31 / 87 39 / 89 38 / 90 36 / 90
13000 2076
RPM 719 776 829 878 925 969 1015 1058 1099 1139
BHP 2.65 3.69 4.77 5.86 6.96 8.10 9.27 10.5 11.7 12.8
Sones / LwiA 21 / 83 21 / 83 22 / 84 24 / 85 26 / 87 31 / 88 37 / 89 43 / 91 43 / 91 42 / 92
14000 2236
RPM 766 820 870 916 962 1005 1046 1088 1128 1167
BHP 3.14 4.23 5.41 6.56 7.74 8.94 10.2 11.4 12.7 14.0
Sones / LwiA 22 / 84 23 / 85 24 / 86 26 / 87 28 / 88 31 / 89 35 / 90 41 / 91 46 / 92 50 / 93
15000 2396
RPM 812 864 911 957 999 1041 1081 1119 1158
BHP 3.70 4.84 6.09 7.33 8.59 9.85 11.1 12.5 13.8
Sones / LwiA 24 / 86 25 / 86 26 / 87 27 / 88 30 / 89 32 / 90 34 / 91 39 / 92 44 / 93
16000 2555
RPM 859 909 954 997 1039 1078 1117 1154
BHP 4.33 5.52 6.83 8.17 9.49 10.8 12.2 13.6
Sones / LwiA 26 / 87 27 / 88 28 / 88 29 / 89 31 / 90 33 / 91 36 / 91 39 / 92
17000 2715
RPM 907 954 998 1039 1079 1117 1154
BHP 5.03 6.28 7.65 9.08 10.5 11.9 13.3
Sones / LwiA 28 / 88 29 / 89 30 / 90 31 / 90 33 / 91 35 / 91 37 / 92
18000 2875
RPM 954 1000 1042 1082 1120 1157
BHP 5.82 7.13 8.54 10.0 11.6 13.0
Sones / LwiA 30 / 90 31 / 90 32 / 91 33 / 91 34 / 92 36 / 92
19000 3035
RPM 1002 1046 1086 1125 1161
BHP 6.67 8.07 9.51 11.1 12.7
Sones / LwiA 32 / 91 33 / 91 34 / 92 36 / 92 37 / 93
Static Pressure (in. wg)
Volume (cfm X 1000)
Volume (m
3
/hr x 1000)
Static Pressure (Pa x 100)
0 10 20 30 40
0
2
4
6
8
10
12
14
0 5 10 15 20 25
0
1
2
3
4
5
6
552 552
607 607
695 695
824 824
943 943
1038 1038
1186 1186
20 20
15 15
10 10
7½ 7½
5 5
3 3
2 2
1½ 1½
SWB-333-AF
RPM
HP
Density 0.075 lb/ft
3
D
o
n
o
t
s
e
l
e
c
t
t
o
t
h
e
l
e
f
t
o
f
t
h
i
s
s
y
s
t
e
m
c
u
r
v
e
SWB-333-AF