Clarage has a complete line of Jet Fans and Central Tunnel Fans for Emergency Tunnel Fan applications including Underground Railways & Transit Stations. With a product range from 0.5 M diameter to over 4 M in diameter in both 50 and 60 HZ designs we have a solution for your needs. Cast aluminum Jet Fans have a split hub with cast aluminum blades designed for 250°C, 300°C or 400°C for one or two hour operations. Central Tunnel Fans can meet the same demanding temperature requirements and have a forged steel hub with blades in cast or forged steel, as well as cast or forged aluminum. Add a single or double anti-stall ring for constant rising pressure characteristics. Please call for additional details.