WebThe FSD-331 is a combination fire smoke damper with airfoil blades. This model is rated for use in walls, floors, or partitions with a fire resistance rating of 3 hours or more and a Class I leakage rating. Pressure: Up to 8 … WebFire dampers are investigated for use in specific fire-resistive vertical or horizontal assemblies as specified by the installation instructions that are supplied by the product manufacturer.
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WebCombination Fire/Smoke dampers are low leak damper and actuator assemblies that have passed the UL555 and UL555S test requirements. Products. Access Doors; Actuators & Accessories; Air Flow Measurement; Commercial Dampers; Diffusers; ... Combination Fire & Smoke Dampers. Sub-Categories Web• The sides of the damper perpendicular to the floor studs shall be framed by a steel track. M ax.. M ax. r. 1 in. erlap M ax. . M ax. Retaining Angle Sleeve Floor 6 in. Max. Refer to: … grafted messianic ministry
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Weband Fire Smoke Dampers Installation Instructions Important General Notes: When UL is referred to in this document, it represents UL/ULC. ... gypsum partition is being used then refer to Figs. 1 and 2 for additional information and details. The opening shall be a minimum of 1/4” (6mm) and a maximum of 1/ 2” (13mm). The maximum multi-section ... Web4 Round Fire and Comination Fire Smoke Dampers ® Damper Model Maximum Size DFDR-510 24 in. (610 mm) FDR-510 FSDR-511 FSDR-512 SEDFDR-510 SEFSDR-511 … WebFire Listing (#3225-0981:0102) Model DFD-150X series is approved for use in walls, floors, and partitions with fire resistance ratings less than 3 hours. This model carries a 11⁄ 2 … china ceiling lighting supplier