Ventilation of Tunnels and Underground Railways


ZVVZ fans ensure diagonal and longitudinal ventilation of underground road tunnels, as well as underground railway tunnels.

Diagonal ventilation fans – heat-resistant

Standard sizes in the range of 1300 to 3550m. The temperature of the transported air in the normal mode of operation in the range of -40 to + 70 ° C.

  • according to the needs of the project is possible
  • one-way (non-reversible) or fully reversible
  • certificate of temperature resistance up to 400 ° C / 120min

JET FANS: Jet reversible fans for longitudinal ventilation – heat-resistant

Standard size in the range of 500 to 1600 mm. The temperature of the transported air in the normal mode of operation in the range of -40 to + 70 ° C.

  • fully reversible fans (in the reverse direction they reach about 95% of the main flow)
  • certificate of temperature resistance up to 300 ° C / 120 min or up to 400 ° C / 120 min according to the parameters of the received Certificate of constancy of properties