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These Fans use Backward Curved Impellers made of Steel or Engineering Plastics. The impellers are press fitted on the External Rotor Motor and dynamically Balanced in two planes. Backward Curved Fans can be used with or without scroll Housing, and find its application in sucking operations, and where static required at Fan Inlet is high.

Backward Curved fans Range From : 
Impeller Diam. : 190 to 225 mm
Air Flow : 500 to 1000 m3/hr
Input Voltage : 110, 220, 440 V AC (50 & 60 Hz.)
Power Input :

60 to 300W

NOTE : Motors with CE Mark and confirm to EN 60335-1 standards.

 

Model A B C D E
BC */190* 190 62 43 132 68/78
BC */220* 220 67 48 159 78/88

 

Housing details for Backward Cured Fans (215 & 220 mm Dia. Impellers)


Single Fan

Double Fan

 

Centrifugal Fans
MODEL Voltage
V
Amps
A
Watts
W
Speed
RPM
Air
Flow
m3/hr
BC 23/19028 230 0.30 65 2600 500
BC 23/22028 230 0.50 110 2800 800
BC 44/19028 415 0.20 80 2600 500
BC 44/22028 415 0.35 135 2800 800
Air Flow Curves for Backward Curved Centrifugal fan
190 mm, 215 mm sweep, 2800 RPM
Conversion 100pa = 0.4 H2O     100m3/Hr = 60cfm

 

Thyristor and Electronic Panel Cooling
Roof Extractors and Kitchen Hoods
Room Air Filters/Cleaners
Applications with relatively high static pressure at the Inlet of the Fan