Belt Drive HVAC Centrifugal Fan LKQ series of backward-curved single layer plate cerntrifugal fans are newly developed products which adopt backward plate blades, with good aerodynamic charateristices, high efficiency, good strength, low noise. The air volume range can reach 900-120000m³/h, greatly improving the efficiency. Impeller Diameter:280-1000mm Air volume Range:900-12000 m³/h Total pressure Range:120-3000 Pa Sound Rate: 80-110 dB(A) Drive Type: Belt Drive Model: 280,315,355,400,450,500,560,630,710,800,900,1000. Applications: As ideal subsidiary equipment for various subsidiary conditioning units, heating, air-conditioning, cleansing and ventilating equipments.