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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 sound ratings shown are loudness values in fan sones at 1.5 m (5 feet) in a hemispherical free field calculated per AMCA International Standard 301. Values shown are
for installation type B: free inlet hemispherical sone levels.
BSQ 140 - Belt Drive
22
(559)
23
(584)
19
7
⁄8
(505)
23
(584)
1 (25)
*12
1
⁄2
(318)
*16
(406)
*17
7
⁄8
(454)
Damper size = 20 x 20 (508 x 508)
Unit weight** = 111 (50)
Housing thickness = 18 ga
0 1000 2000 3000 4000 5000 6000 7000
0
100
200
300
400
500
600
700
800
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
0 500 1000 1500 2000 2500 3000 3500 4000 4500
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
Static Pressure in. wg
cfm
m
3
/hr
Static Pressure Pa
2 hp
1 1/2 hp
1 hp
3/4 hp
1/2 hp
1/3 hp
1/4 hp
2153
1890
1615
1340
1065
790
RPM
HP
Density 0.075 lb/ft
3
Model
Number
Motor
HP
Fan
RPM
CFM / Static Pressure in Inches wg
0.125 0.250 0.500 0.750 1.000 1.500 1.750 2.000 2.500 2.750
140
140-4 1/4
800
CFM 1362 1185
BHP 0.10 0.11
Sones 6.3 6.7
1076
CFM 1927 1810 1538
BHP 0.24 0.25 0.26
Sones 10.7 10.7 10.2
140-3 1/3 1185
CFM 2142 2039 1807 1463
BHP 0.32 0.33 0.35 0.34
Sones 12.1 11.9 12.0 10.6
140-5 1/2
1271
CFM 2311 2217 2006 1741 1199
BHP 0.39 0.41 0.43 0.43 0.39
Sones 13.3 13.0 13.1 13.0 12.7
1356
CFM 2476 2392 2197 1979 1636
BHP 0.48 0.49 0.51 0.52 0.51
Sones 14.2 13.9 13.8 13.8 13.8
140-7 3/4 1553
CFM 2858 2787 2626 2449 2253 1447
BHP 0.71 0.73 0.75 0.78 0.79 0.70
Sones 16.2 16.0 16.0 15.6 15.3 13.9
140-10 1
1631
CFM 3008 2941 2790 2625 2446 1865
BHP 0.82 0.84 0.86 0.89 0.91 0.87
Sones 17.1 16.9 16.9 16.6 16.1 14.8
1709
CFM 3159 3094 2953 2798 2635 2177 1752
BHP 0.95 0.96 0.99 1.02 1.05 1.03 0.97
Sones 18.2 18.0 17.9 17.7 17.2 16.1 15.1
140-15 1
1
⁄2 1956
CFM 3633 3576 3461 3330 3193 2894 2705 2457
BHP 1.41 1.43 1.47 1.49 1.53 1.57 1.57 1.55
Sones 24 23 24 24 23 22 21 20
140-20 2
2055
CFM 3822 3769 3662 3537 3410 3136 2982 2777 2168
BHP 1.63 1.66 1.70 1.73 1.75 1.82 1.82 1.81 1.70
Sones 27 26 28 27 26 25 24 23 21
2153
CFM 4009 3958 3856 3741 3622 3365 3225 3078 2627 2260
BHP 1.88 1.90 1.95 1.98 2.00 2.08 2.10 2.10 2.05 1.95
Sones 30 30 31 31 30 28 28 27 25 23
MAX Bhp AT A GIVEN RPM = (rpm/1682)
3
MAXIMUM RPM = 2153
TIP SPEED (ft/min) = rpm x 3.812
MAX NEMA MOTOR FRAME SIZE = 145T
OUTLET VELOCITY (ft/min) = 0.3692 x cfm
Dimensions shown in inches (millimeters) and weight is shown in pounds (kilograms).
*Motor cover is optional. Size may be greater depending on motor.
**Weight shown is largest cataloged Open Drip Proof motor.