EFS Static Fire Damper 3 hr rating
View EFS Engineering Ltd. on TEKEN44EFS Multi-Blade fire damper is rated as a 3 hours fire damper for use in static systems, per SI 1001 part 3 (UL 555). As a life safety fire damper, it has a failsafe design which enables the damper to automatically close upon the detection of heat and/or loss of power. The electric heat responsive device enables controlled closure through the actuator and is automatically remotely reset after testing or power failure conditions. EFS damper provides a low pressure drop design and can be installed in vertical walls and partitions or horizontally in floors or assemblies with fire resistance ratings up to 4 hours.
ANSI/UL 555
Standard for Safety for Fire Dampers (Proposal dated 08-19-16)
NFPA 80
Standard for Fire Doors and Other Opening Protectives
NFPA 90A
Standard for the Installation of Air-Conditioning and Ventilating Systems
NFPA 92
Standard for Smoke Control Systems
NFPA 101
Life Safety Code
NFPA 105
Standard for Smoke Door Assemblies and Other Opening Protectives
SII 1001-3
FIRE SAFETY IN BUILDINGS: FIRE DAMPERS
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