Used in the tunnels to deliver air inside the tunnels
500 to 100000 CMH
300 to 1600 mm
The Tunnel Ventilation fans consist of axial flow impellers and can deliver large air quantities and high pressures. The tunnel ventilation fans can be manufactured in contra-rotating consisting of two impellers and also single impellers with variable blade angle pitch. These fans are mainly used in the tunnels to deliver air inside the tunnels.