Standard 22 gauge galvanized steel sleeves for use with Type A, B, and C curtain type fire dampers.
Assembled at the factory, each fire damper/sleeve ensures appropriate UL approved installation.
Available for both static and dynamic system applied fire dampers.
Assembly meets all UL and NFPA requirements for primary fire dampers, and carries a UL555 classified fire damper label.
Approved for use where ducts penetrate partitions with fire resistance ratings of two hours or less.
Dampers are mounted in the center of the sleeve as standard.
Optional off-center mounting locations are available.