Fire Rated Ceiling Diffuser

Metalaire is the flagship brand of metal industries inc offering a complete line of air distribution and air terminal products. The damper has a fusible link that melts at 165 f causing the blades to close. They hare designed to provide an extremely cost effective product that offers both the unobtrusive appearance required for architectural excellence and the 360 diffusion pattern at minimum nc levels required for high engineering performance.

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Fire rated ceiling diffusers author.

Fire rated ceiling diffuser.

Ul classified fire rated ceiling diffuser assembly listed in the underwriters laboratories fire resistance directory has a fire resistance rating of 3 hours or less when installed in accordance with the installation instructions. Price corporate communications subject. From standard grilles and registers to its architectural line of formations linear slot diffusers along with a newly released series of displacement diffusers metalaire has the air devices to meet every need. Ceiling fire dampers also known as radiation dampers are designed and tested to limit the radiant heat transfer through an air inlet outlet opening in the ceiling membrane of a fire resistance rated floor ceiling or roof ceiling assembly.

Temperature test criteria and nfpa 90a requirements. Price corporate communications subject. Titus fire rated diffusers are ul classified and listed in underwriters laboratories fire resistance directory. Nailor fire rated diffusers are classified and listed by underwriters laboratory for use in ul ulc restrained or unrestrained floor ceiling and or roof ceiling assemblies which incorporate an exposed grid suspended ceiling lay in t bar with up to a 3 hour rating.

Section g submittals keywords. Diffuser neck 20 508 diameter or 18 x 18 457 x 457. This flush face perforated ceiling diffuser is designed to provide a uniform circular pattern. Diffuser pan limitation 24 gauge 6 steel minimum.

4000 and 4400 series diffusers are a fire rated version of the popular rns series stamped square ceiling diffusers. The tdc fr is a louvered face diffuser that harmonizes with different types of architectural ceilings. Dampers are ul fire rated to help prevent the spread of fire for up to 3 hours. These diffusers meet ul time vs.

For details of fire rated assemblies see the current ul or ulc fire resistance directory. Section g submittals keywords. Cfd r 5 ceiling fire dampers ul classified radiation dampers underwriters laboratories has classified hundreds of specific floor ceiling f cs and roof ceiling r cs and established fire resistance ratings for each design. Fit these diffusers into your drop ceiling to stop airflow in the event of a fire.

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