... 73 Dust Removing Centrifugal Fan 1. ApplicationsModel C4-73 Dust Removing Centrifugal Fan are mainly used in blower fan and draught fan system of ... the fans can be made in accordance with the clockwise and counterclockwise with 0°,45°,90°,135°,180°,225°4. ... , variable inlet vane damper, damper, electric actuator, motor with variable frequency and speed regulation, frequency converter, soft starter for ...