Low pressure centrifugal fans are used to move large volumes of air at low pressure. They have a circular housing, an impeller with curved blades, and an electric motor. The impeller rotates quickly, drawing air into the housing and forcing it out to create a low-pressure area. They can be powered by electric motors, steam, or compressed air
Centrifugal blowers typically operate against pressures of 0.35 to 0.70 kg/cm2, but can achieve higher pressures. One characteristic is that airflow tends to drop drastically as system pressure increases, which can be a disadvantage in material conveying systems that depend on a steady air volume
Pressure: 1300–4500 Pa Volume: 80–450 m3/min Power: 4–320 kW Total pressure: 1912–2853 Pa Airflow: 3710–311,000 m3/h Frequency: 50 Hz/60 Hz 3HP/950