Overview
The FSD-3V series of combination fire/smoke dampers employ a “3V” style blade type. For a lower pressure drop see our FSDs with Airfoil type blades. All 3V fire/smoke dampers are tested to 2000 FPM and 4” WC and are available with 1.5 or 3 hour fire ratings as well as Class 1 or Class 2 leakage ratings.
Product Features
- UL listed and tested to UL 555 Standard for Fire Dampers
- California State Fire Marshall (CSFM) listed
- New York MEA listed
- Dynamic rated (for HVAC systems that keep fans on during a fire)
