4-68 series centrifugal fan

4-68 series of centrifugal fan can be used for general factories and large buildings indoor ventilation. Can be used to enter the gas can also be used to output gas. The gas should be transported not more than 80 ℃ of the air and other non-spontaneous combustion, harmless to the human body, non-corrosive gas on the steel material. Gas can not contain viscous substances, containing dust and hard particles is not greater than 150mg / m3.