The DIBD20G is a UL555 Classified Dynamic Curtain Type Fire Damper.
It features:
- Meets all UL and NFPA criteria for primary fire dampers in static (fans on during alarm) HVAC systems.
- Damper offset in sleeve to allow for grille.
- Vertical and horizontal closure spring operation for assured closure under air flow (fans on) in HVAC systems.
- Galvanized steel construction.