EFS Smoke Damper Class 1

efs-s-1

EFS Multi-Blade smoke damper is rated as Leakage Class I Smoke damper for up to 350°F. For use in dynamic systems, per SI 1001 part 4 (UL 555S).

As a life safety damper it has a failsafe design which enables the damper to automatically close upon the smoke detection or loss of power.

EFS damper provides a low pressure drop design, qualified to 2,000 fpm (10.2 m/s) / 4.0 in. WC (1.0 kPa) and can be installed in vertical walls and partitions, or horizontally in floors or assemblies.

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Leakage Class I
250°F or 350°F
Approved for Dynamic Conditions
Multiple section assemblies
Approved for Vertical and Horizontal mounting position

Electric actuators 24V, 120V or 230V : Belimo, Honeywell or Siemens
Actuators available internally or externally mounted
Position indication switches available as part of the electric actuator
Momentary Test Switch available
Factory supplied sleeves in various lengths and gauges
Frame retaining angles can be provided for easy and quick installation

SI 10o1 part 4 (Underwriters Laboratories, Inc. – UL Standard 555S)
National Fire Protection Association (NFPA 80, NFPA 90A, NFPA 92, NFPA 101 and NFPA 105)
International Building Code (IBC)
ICC’s International Building Code
SMACNA requirements

Technical Datasheet

EFS UL classified Fire & Smoke Dampers- datasheet

Revit 3D

EFS Fire & Smoke Dampers Revit Family