WebModel FD-110 is a narrowline static rated fire damper approved for use in walls, floors, and partitions with fire resistance rating less than 3 hours. This model carries a 11⁄ 2 hour UL fire damper label. UL 555 classifies static rated fire dampers for use in HVAC systems that are automatically shut down in the event of a fire. WebModel FSD-211 meets the requirements for fire dampers, smoke dampers and combination fire smoke dampers established by: National Fire Protection Association NFPA Standards 80, 90A, 92, 101 & 105 IBC International Building Codes CSFM California State Fire Marshal Fire Damper Listing (#3225-0981:0103) Leakage (Smoke) Damper …
Industrial Dampers Greenheck
WebInserting Dampers Into Wall/Floor Openings Figures 5 and 6 shows two approved installations for out of wall/floor dampers: 1) Through the grille access and 2) Installation in continuing duct In both installation methods the damper shall not be mounted more than 31⁄ 2 in. (89 mm) outside the plane of the wall/floor. WebSelect from a wide range of fan and ventilator products for commercial, institutional and industrial roof installations. There are products for exhaust, supply, recirculate, filtered, process and gravity applications. These products use two styles of fans —direct drive, used where maintenance access is difficult, or belt drive, which allows ... immoservice rodgau
DFDR-510, R17, May 2024 - Greenheck-USA
Webwall/floor by a minimum of 1 in. (25 mm)(see Figure 3). • For grille installation on fire damper up to 36 in. x 36 in. (914 mm x 914 mm) maximum, angle legs may be reversed and one leg inserted into the wall/floor opening providing the required clearance is maintained between angle leg fastener and the wall/floor opening. Note: Screws WebFire Dampers Fire dampers are required by all building codes to maintain the required fire resistance ratings of walls, partitions and floors when they are penetrated by air ducts and transfer openings. These products are tested and classified in accordance with UL Standard 555. Fire dampers 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. immoservice marl