Centrifugal Fan, Fan, Ventilator, Blower, Industrial Fan, Ventilation, Ventilator Fan, Air Mover Features: 1) Low noise, hi-efficiency, light and reliable operation 2) Application: general ventilation of high buildings and factories Specification: 1) Fan diameter: 400- 1,600mm 2) Air volume: 2,500 - 82,000m³/h 3) Air pressure: 2,000-6,000paPa