Tunnel Ventilation Damper
| Series: | TVD-SB / GB 40-B / TVD-B-40C2-BG* |
|---|---|
| Construction: | Stainless Steel / Galvanized Steel |
| Fire Rating: | 4 Hrs as per BS 476. |
| Drive | Pneumatic’ / Electric* |
Tunnel Ventilation Damper is a high perfomance BS 476 Part 20-22 Classified damper with 4hrs. fire rating and Class | leakage rating, designed to ensure lowest resistance to airflow in HVAC systems with velocities of upto 4000 fpm and 24” w.g. (6@00Ba)perssarednstalled vertically and are rated for airflow and leakage in either direction. The dampers are designed to with stand the toughest and most demanding tunnel US environments and can be custom-built to meet the needs of any tunnel or process applications.
