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Backward Curved Centrifugal – Motorised Impeller
ManufacturingExternal rotor motors are usually contained within the depth of the fan impeller, thus saving the space normally occupied by a standard motor.
Backward-curved motorised impellers develop pressure within the envelope of the impeller and do not therefore rely on a scroll housing for this purpose. They are of relatively low cost and can be simply and cheaply housed.
Specification:
MOTOR TYPE – External rotor motor, in the airstream
FEATURES – Space saving short axial length. Low cost speed control
FLOW RATE – 17000m³/h range maximum
How it works:
Air is drawn through a radiussed inlet ring, which minimises pressure losses and air leakage, and is discharged at 90° to the inlet axis. The impeller has a 'non-overloading' characteristic in that it draws maximum power near the centre of its pressure/volume flow curve.
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Backward, Centrifugal, Curved, Impeller, Motorised Product code: Motorised Impeller