Structural features: single air inlet after the impeller, with color steel plate and double-layer sound-absorbing board two structures; There are two structures: internal motor and external motor.  
Number range: NO.250-1000# A total of 13 numbers.
Air volume range: 500-55262m3/h
Full pressure range: 125-4036pa
Suitable for use: Mainly used in factories, power plants, buildings, laboratories, general ventilation and kitchen smoke, as well as fire smoke exhaust.  
Use environment: no corrosion, no spontaneous combustion, no viscous substances when conveying air, medium temperature generally does not exceed 80℃. When used for fire smoke exhaust, it can ensure continuous operation for not less than 30 minutes under the condition that the ambient temperature reaches 280℃; The particles contained in the medium are not more than 150mg/m3. (Can be customized explosion-proof, anti-corrosion, high temperature resistance structure)