Non-return (backdraft) Dampers with Seals
Ventilation Ducting | Dampers & Access Doors | Non-return Dampers | Non-return (backdraft) Dampers with Seals
Lightweight aluminium blades on a light steel spring maintain the damper in the closed position when no air is flowing, preventing wind/drafts from flowing back through the duct. These dampers feature seals and rolled edges. |