4-79A type centrifugal fan can be used as general factory,Hotels, restaurants and large buildings with the indoor ventilated take a breath, conveying air and other natural, no harm to human, steel non-corrosive gases. 4-79A type fan may transport inflammable gas volatile, but shall not exceed 80 °C temperature. 1. This type of the ventilator has single inhale and double inspiratory two types,it has fourteen clock specifications. 2. No3A, 3.5A , 4A ,4.5A ,5A ,6A Belong to motor straight association-like(A type) 3. No7C ,8C Belong to belt rotary(C type) 4. No7E ,8E,10E,12E,14E,16E Belong to double teams belt rotary 5. Double suction type appointed number has a few kinds.2-4E, 2-5E,2-8E,2-10E,2-12E,2-14E,2-16E,2-18E,2-20E.(E type) 4-2X79E Main parameters: No.speed(r/min)motor(kw/p)flow(m3/h)Total pressure(pa)32900 1450 1.5-2 0.75-4 1970-3830 990-1910 1196-726 304-177 3.52900 1450 3.0-2 1.1-4 3120-6070 1560-3040 1628-981 412-245 42900 1450 5.5-2 1.1-4 4670-9080 2330-4540 2138-1275 530-324 4.52900 1450 11-2 1.5-4 6640-12920 3320-6450 3334-2001 2697-1618 52900 1450 15-2 2.2-4 9100-17720 4560-8860 677-402 834-500 61450 960 5.5-4 1.5-6 7890-15320 5320-10100 1196-706 530-314