Floor Radiation Dampers

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.

Floor radiation dampers.

A ceiling radiation damper shall be provided where the ceiling membrane of a fire resistance rated floor ceiling or roof ceiling assembly a listed smoke damper designed to resist the passage of smoke shall be provided at each point a duct or air transfer opening penetrates a corridor. They are used to protect hvac openings in fire rated horizontal ceiling assemblies. Operated by a fuse link these dampers come spring loaded and are available with an easy access assembly. Ceiling membrane considerations to achieve the fire resistance rating required by building.

Preventing the transfer of heat and flames into attic and crawlspaces is essential in limiting the amount of damage done in the. Unlike spring loaded fire dampers and smoke dampers ceiling radiation dampers from lloyd industries limit the transfer of heat into attics or through openings in the ceilings and floors. Ceiling radiation dampers are available in butterfly style and curtain style. Ceiling radiation dampers are intended to limit the transfer of radiant heat into the concealed space when installed in the ceiling membrane of a fire resistance rated floor ceiling or roof ceiling assembly.

Adjustable models 0722a 0722a se and 0722a le available. Nailor model 0722 ceiling dampers are for use in round applications in lieu of hinged door type dampers in any ul ulc floor ceiling or roof ceiling assembly with up to a 3 hour fire resistance rating where air ducts are allowed. Series 51sb in a boot true truss. A ceiling radiation damper closes automatically to restrict the passage of heat.

Series 51sb read more. Exteneded collar models 0722 se and 0722 le available. Ceiling radiation dampers. Now with this true round radiation dampers architectural round diffuser with volume control may be used in place of square or rectangle flush mount diffuses.

Static ceiling radiation dampers models mrcd mscd mscdsb mccd ceiling radiation dampers covered under ul 555c intended for installation in hourly rated fire resistive floor ceiling and roof ceiling assemblies in accordance with the standard for fire tests of building construction and materials ul 263.