FSD60: UL 555/555S 1.5 hr./Class I, Airfoil Blade, 4,000 fpm and 8" w.g. max, Optional Sleeve
The FSD60 Combination Fire/Smoke Damper are both UL555 and UL555S Classified, and rated as a 1-1/2 hour fire damper and a Leakage Class I Smoke damper. It features:
- Maximum velocity of 4,000 fpm.
- Maximum 8" static pressure.
- UL approval 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.
3900 Dr. Greaves Rd.
Kansas City, MO 64030
Tel: (816) 761-7476
Fax: (816) 761-1936
Web site: http://www.ruskin.com