Product Profile of Centrifugal Fans Backward Curved

Vbm enterprises manufactures centrifugal fan backward curve. Vbm enterprises offers external rotor motors, axial flow fans, centrifugal blowers, etc. The centrifugal 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. This centrifugal fan backward curve can be used with or without scroll housing, and find its application in sucking operations, and where static required at fan inlet is high.

Centrifugal fan backward curve range from:

• Impeller diameter: 190 to 250 mm

• Air flow: 500 to 1500 m3/hr

• Input voltage: 110, 220, 440 v ac [50 & 60 hz.]

• Power input: 60 to 300w

The motors are ce marked and confirm to en 60335-1 standards.

Applications of the centrifugal fan backward curve:

• 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

Specifications for centrifugal fans [50 hz]


Model	Rotor diam	Voltage v	Amps a	Watts w	Speed rpm	Air volume m3/hr
Bc23/19028/s1	92	230	0.21	45	2400	450
Bc44/19028/s2	92	415	0.18	65	2700	500
Bc23/22028/s2	92	230	0.27	65	2400	725
Bc 23/22028/s3	92	230	0.36	82	2650	800
Bc 44/22028/s2	92	415	0.18	70	2400	725
Bc 44/22028/s3	92	415	0.22	80	2700	830