DFOB-100 - page 3

CHICAGOBLOWERCORPORATION
3
takes up less than 20% of the curve.
Fan Manufacturers’ A and B stable
operating range is a full 30% less
thanChicago, as illustratedby the
blueand redperformancecurves.
Class III wheel designed for
hostile dust collection systems
Industry’sWidest
OperatingRange
ChicagoBlower’sDesign51Backward
Inclined wheel has ideal characteris-
tics for dust collectors and other vari-
able pressure systems. The smooth,
stable air flow over the performance
range is the result of Chicago’s tried
and true wheel design with hyper-
bolically spunwheel cone.This allows
variable pressure applications to
remain in the stable area of the pres-
sure curve longer with a large
increase in static pressure.
In the typical performance curve
below, Chicago’s Design 51 BI has
the largest operating area of over
80%, illustrated by the blue section of
the performance curve.The stall area
Chicago’s
fan.net
Selection
Program
Refer toChicago’s
fan.net for perform-
ance, fan curves
and sound data.
For software and
assistance, contact
your local Chicago
Blower Sales
Engineer.
Class IV
Arrangement 10
Design 51BI Fan
1,2 4
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