Centrifugal Fan Backward

Backward-curved centrifugal fans are a type of ventilation system primarily used for air exhaust. They alter the direction of the incoming air or gas stream by 90 degrees, discharging it from the opposite side. Among their key benefits are robust construction, low noise output, high reliability, and the ability to operate efficiently across a wide range of conditions.

Centrifugal fans are constant-volume devices rather than constant-mass devices—meaning that at a fixed rotational speed, the volumetric flow rate they deliver, and consequently the discharge air velocity, remains constant. Backward-curved impeller fans boast the highest static efficiency of any fan type, which enables them to effectively generate airflow whether handling low-density or high-density air.