Direct Drive Plug Fan - page 1

Chicago’s direct drive airfoil plug fan offers a compact economical
alternative to belt drive plug fans. Applications include packaged
equipment for cooling, drying, dust collection, recirculation and
aeration systems. For retrofit installations, the compact direct drive
configuration allows greater system flexibility. When coupled with
a variable frequency drive, performance is no longer limited to
sycronous motor speeds.
Direct drive simplicity converts to lower initial cost and less
operating expense, as there are no fan shafts, bearings,
belts or guards to maintain. Plug fans utilize Chicago’s
quiet, efficient airfoil wheel with hyperbolic inlet cone.
Exceptional rigidity is afforded by the heavy steel panel
with flanged edges and gusseted motor base. Plug
fans are designed for horizontal or vertical installation.
Chicago’s direct drive line consists of plug fan sizes
from 12-1/4 to 30 and static pressures to 12”. Direct
drive temperature maximum is typically limited to 180°F,
or higher when equipped with factory cooling wheel
and insulated plug panels. For elevated temperatures,
ask about Chicago’s belt drive or direct coupled fans.
The versatile plug fan design allows for use of either
C-face or foot mounted motors. Fans are also available
with steel housing, backward inclined wheels or other
factory modifications.
Bulletin SPFD 101
Printed On Recycled Paper in the USA
September 2009
1675 GLEN ELLYN ROAD, GLENDALE HEIGHTS, ILLINOIS 60139
PHONE: (630) 858-2600 FAX: (630) 858-7172
e-mail:
Direct Drive
Airfoil Plug Fan
!
Fan
Weight
12-1/4
13-1/2
15
16-1/2
18-1/4
20
22-1/4
24-1/5
27
30
3500
3500
3500
3500
1750
1750
1750
1750
1750
1750
5
5
7.5
15
5
5
7.5
15
20
40
3321
4481
6192
8286
5278
7055
10267
13825
18618
25960
3160
4307
6000
8083
4746
6490
9619
13202
18000
25290
2985
4121
5800
7875
4152
5861
8800
12296
17127
24562
2792
3920
5590
7660
3355
5193
8069
11463
16104
23777
2593
3706
5364
7433
4116
7200
10644
15218
22922
2388
3487
5157
7190
6081
9684
14310
21930
2112
3262
4919
6939
8489
13294
20720
3001
4680
6681
7072
12076
19379
62
80
126
148
178
222
266
300
337
424
Fan
Size RPM
Motor
HP 1" SP 2" SP 3" SP
5" SP
4" SP
6" SP 7" SP 8" SP
Performance
Notes:
Weight in lbs. less motor.
Performances shown are for
100% width housed fans.
an ISO 9001 Company
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