Transit

Tunnel fire dampers are life saving equipment. They extract smoke and toxic fumes during a fire while passengers are evacuated. These dampers also provide a protective barrier to keep fire away from other capital investments, such as ventilating fans and silencers.

The TFD-75 and TFD-75C are specially designed for use in large-scale projects, such as road tunnels, rail tunnels, and underground metro stations. They are very robust, multi-bladed dampers which can operate reliably in the most severe environments. They can be operated by a range of actuators, both pneumatic and electric, and can “Fail Safe” in either the open or closed position.

Fully enclosed position indication switches can also be provided to communicate damper blade positions to the main system controls. The TFD-75 and TFD-75C dampers have been successfully tested to meet the stringent requirements of a four-hour rating to BS476, Part 20 (1987); “Fire Resistance Performance,” the one-hour rating of NFPA 130 and Class I & II leakage as determined by UL555S.

Compared to most capital equipment, a fire damper is not an expensive item...unless it fails!

AWV tests and tests again because we put safety first.