Tunnel Dampers are built to regulate airflow in the most demanding environments—such as underground metro and roadway tunnels—ensuring safe, controlled ventilation for passengers and vehicles, and directing smoke and hazardous gases during emergencies. Engineered for performance, they handle up to 8,000 fpm, 60″ w.g., and are available with temperature ratings meeting NFPA 305°F, commonly 482°F, and up to 752°F internationally. Compliant with NFPA-130, NFPA-502, UL 555S, and BS 476, AWV tunnel dampers are trusted for their durability, precision, and life-safety reliability.
VC-51
Heavy Duty Volume Control, Airfoil, Parallel or Opposed
EAF-75
Extruded Aluminum Airfoil Tunnel Damper, 250 C/1 HR, Thermal Shock Construction, 6,000,000 Transient Pressure Reversals
TFD-75
Heavy Duty Fire Damper Rated For (4) Four Hours to BD 476, Part 20 and NFPA 130 (250 C/1 HR)
Contact Ochoa Industries to assist selecting the proper Damper for your application
At Ochoa Industries, we provide custom design solutions for industrial and marine applications. Our specialties include ventilation, noise control, and explosion-proof air conditioning, focusing on performance and safety.
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