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4-72 centrifugal fan can be used as indoor ventilator in general factories and large buildings, it deliver air and other gas which is harmless, non-spontaneous and non-corrosive, it is harmless to body and it has no steel non-corrosive gases. B4-72 type ventilation fan can be used for ventilation of the flammable volatile gas. Viscous material is not allowed in the gas, the dust and hard particles contained can not be more than 150 mg/m3. Gas temperature shall not exceed 80℃. In order to facilitate users to install and use the fan, we adopt the latest design for 2.8A-6A fan which use the overall frame structure, that means blower and motor are connected into whole.

We can design and manufacture 4-72 series with vibration reduction stage posture fan for the user.

We can design and manufacture 4-72 double suction fan for the user.

We can design and manufacture high temperature 4-72 series fan for the user.

We can design and manufacture Corrosion resistance 4-72 series fan for the user.  

1. high flow rate, high efficiency, low noise, light vibration,facilitate to install ,etc

2.Widely used as indoor ventilator in general factories and large  buildings,etc 

3. Large logistics distribution network,high  efficienct pre-sale,sale technical and maintenance service.

4. Lastest designed 2.8A-6A fan use the overall frame stucture,that means blower and motor are connected into whole.

5.The gas delivered by the series of fan cannot have sticky matters, and is noncorrosive, non-flammable and non-explosive.