220V Low Noise 133mm Air Handing Unit Efficient Backward Curved Centrifugal Fan

220V Low Noise 133mm Air Handing Unit Efficient Backward Curved Centrifugal Fan. Reliable AC motor design ensures stable operation with simple wiring, compatible with standard mains power for easy drop-in replacement. Backward-curved metal impeller delivers high static pressure and consistent airflow, even under varying system resistance. Robust construction with thermal overload protection and sealed bearings guarantees long service life and maintenance-free performance in industrial environments.