Web• Fire dampers must be mounted in a steel sleeve. The damper/sleeve assembly is held in place in the wall, partition or floor by use of retaining angles on each side of the wall etc. Ductwork shall connect to the sleeve on either side, as required, Webstandard installation, the damper is mounted in the sleeve, the sleeve/damper assembly is mounted in the fire barrier and the assembly is held in position by retaining angles on …
Fire/Smoke Dampers - Price Industries
WebFire - Smoke Dampers Dynamic 1-1/2 Hr Rated. Rep Login (817) 509-2300 [email protected]. Home; PRODUCTS Air Control and Backdraft Dampers Ceiling Radiation Dampers Fire - Smoke Dampers Louvers and … WebThe Holyoake HFS-R-146 is a fire and leakage rated Multi-leaf steel damper for the prevention of the spread of fire and/or smoke through ducted air systems, or between plenums. Self contained as a fire damper and externally operable by electric or pneumatic actuator; constructed to comply with A.S.1668.1, 1998 and A.S. 1682.1, 1990. Refer to ... hilary searing
CURTAIN FIRE DAMPERS - Nailor
WebFire damper assemblies expand during periods of intense heat. Therefore, it is essential that openings in walls or floors be larger than the fire or combination fire smoke damper assembly to allow for this expansion. The wall/floor opening must be a minimum of 7⁄ 8 in. (22 mm) larger than the outside diameter of the damper. WebOct 1, 2024 · UL requires all life-safety dampers to be mounted in a sleeve, which can be integral to, or attached to, a damper’s frame. ... Because airflow ratings of fire dampers for use in dynamic systems and combination fire-smoke dampers are size dependent, the use of the mullions discussed herein are only intended for application with fire dampers ... WebSteel Return Grille, 45 Degree Deflection, 3/4" blade spacing, Blades Parallel to Long Dimension 23RL-NT Aeroblade Return Grille for Narrow Tee Ceilings, 3/4" blade spacing with 45 Degree Deflection, Blades Parallel to Short Dimension 23RS Steel Return Grille, 45 Degree Deflection, 3/4" blade spacing, Blades Parallel to Short Dimension 23RS-NT small\u0027s construction twillingate