Fire/Smoke Damper, Steel, 1½ Hour Rating, UL555/UL555S Classified, Class I, Low Profile Aerodynamic Blade, w/Integral Sleeve
Features:
- Maximum velocity of 2,000 fpm.
- Maximum 4" static pressure.
- Low profile design provides lowest pressure drop.
- UL tested for dual directional airflow.
- Failsafe design, which enables the damper to automatically assume the desired position when fire or smoke (if smoke detector is present) interrupts operational power.
- The EFL or PFL heat-actuated release devices permit controlled closure through the actuator and are automatically remote resettable after test, smoke detection, or power failure conditions.
- Galvanized steel construction.
