Static

IBD2 fire dampers can be installed vertically in walls or horizontally in floors with fire resistance ratings of less than 3 hours. The IBD2 carries a 1-1/2 hour UL fire damper label and is classified as a static damper for use in HVAC systems.

IBD23 fire dampers can be installed vertically in walls or horizontally in floors with fire resistance ratings of greater than 3 hours. The IBD23 carries a 3 hour UL fire damper label and is classified as a static damper for use in HVAC systems.

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IBD2 , IBD23

UL 555, STATIC, CURTAIN TYPE, OPTIONAL SLEEVE. Meets all UL and NFPA criteria for primary fire dampers in static (fans off during alarm) HVAC systems. Fusible link included standard. Galvanized steel construction.




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