The first purpose of using metro fans is providing fresh air for people traveling by metro. Second reason is reducing the ambient temperature which is created by people, trains movement or other machines. The last but most important reason is to evacuate smoke. In case of fire the sensors warn the fans to speed up and fans starts to direct the polluted air towards the end of the tunnel along the direction of the traffic flow. The fan system provides flexibility and ease of installation and prevents loss of time in maintenance and repair operations.
Cvsair metro fans and its components are produced in F300 ( 300 C° / 120 minute ) and F400 ( 400 C° / 120 minute ) strength classes according to the EN 12101-3 / Smoke and Heat Control Systems standard. There is a protective wire to protect the motor and the device from particles at suction side and integrated covers for directing the air efficiently at the outlet side. The devices are equipped with a protective coating layer and terminal boxes of the fans are also manufactured fire-resistant. Cvsair fans can work in both directions and are delivered with other parts in the body.
For more information about the products, please check out the presentation prepared by Cvsair.