Model FA-J-T

Axial Tunnel Jet-Fans

Performance Features

  • In these systems, the fan blade is connected directly to the electric motor.
  • The design of the fan blades for these types of fans is symmetrical and bi-directional airfoil.
  • The reverse thrust of the jet fans is approximately 99 percent of the direct thrust.
  • The air delivery capacity is up to about 250,000 m3/hr.
  • The mechanical thrust is up to about 2200 Newtons.
  • The diameter of the fan blades ranges from 560 to about 1400 millimeters.
  • There is the capability to install various accessories, such as bird screens, base frames, and different types of dampers on these ventilators.
  • The application of tunnel jet fans is for the longitudinal ventilation of urban and highway tunnels, typically installed in pairs or groups of three in parallel on the tunnel ceilings to provide the necessary thrust for air transfer.
  • In general, the body material of these ventilators is made of C.S. ST37, and the fan blades are made of cast aluminum.
  • The vibration balance of these fans is according to the DIN ISO 1940-1 grade G 2.5 <4 mm/s standard.

Special Design Methods

  • The operating temperature of these jet fans is designed and manufactured according to the client’s order in the range of F200, F300, and F400.

 

  • The fire resistance test of the jet fans is conducted based on the BS-EN 12101-3 standard.