220V High Pressure Industrial Air Blower Backward Curved Centrifugal Vent Fan

Backward curved ventilation exhaust fan with high efficiency

The forward and backward ventilation exhaust fan is different from the blade of the blower fan assembly. The forward curved centrifugal fan is generally called the blower, and the backward curved centrifugal ventilation fans is generally called the induced draft fan. The difference is the length of the impeller transverse and the impeller edge.

The forward curved centrifugal fan is parallel to the impeller edge, the impeller outlet Angle is greater than 90 degrees for forward curved centrifugal fan impeller is also known as the forward tilt impeller, the forward tilt impeller with high pressure in the majority. Backward tilt and the impeller is not parallel, the length to the edge of the impeller is a few centimeters or a few millimeters, refers to the impeller outlet Angle is less than 90 degrees for the back tilt impeller is also known as the back tilt impeller, the back tilt impeller is mainly medium pressure.

  Key Features 

• Impeller diameter: 80~3500 mm 
• Speed of mainshaft: 760~2900 rpm
• Pressure range: 705~25425 Pa
• Flow range: 3297~723305 m3/h
• Air Temperature: 20~1000 Celsius degree

• Material: Cast Iron, Carbon Steel, Stainless Steel.

• Efficiency: 70%-90%