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BACKWARD INCLINED TYPE



“MECHA “ BACKWARD INCLINED CENTRIFUGAL FANS
TYPE “BICF”

APPLICATIONS
“MECHA” “backward Inclined centrifugal Fans (BICF) are designed for Industrial
Applications in which the fan delivers air containing corrosive fumes or light, erosive dust particles. A Backward Inclined flat bladed wheel is used in this type of fan. This wheel has heavier blades and greater resistance to erosion and corrosion-hence provides minimum maintenance under these contaminated air conditions.




BACKWARD INCLINED  WHEEL
WHEEL DESIGN: Backwardly inclined, thick, single sheet high strength steel blades continuously welded to a streamlined wheel cone and heavy steel backplate. The wheel has a true non-overloading horsepower characteristic, mechanical efficiency over 80%, and steep, stable pressure curve.





PERFORMANCE CHARACTERISTICS

· PRESSURES TO 14 INCHES WG...Pressure from ½ to 14 inches in volumes up to  118,000CFM and temperatures to 800 F.

· STEEP PRESSURE CHARACTERISTICS…So steep that if the original estimate of the
      system resistance was 30% low, the Backward Inclined
      Fan would deliver at least 90% of the original design.

· LOW HORSEPOWER….the fan, with its high efficiency, uses far less horsepower          than radial blades fans. This permits smaller motor requirements and result in less power  consumption.
· NON-OVERLOADING HORSEPOWER….. the motor can be sized for the operating   horse power of the fan and not over sized…thus increasing motor efficiency.

LOW SPEED….fan speed with this type is 8% lower than with the airfoil