Beteccad UL-555 Fire Damper 3-Hour Rating (MFD-SB-F-D-30-A-R)
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UL-555 certified fire damper with 3-hour fire rating, stainless steel construction, and fail-close mechanism for critical HVAC ductwork protection.
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Product description
The Beteccad MFD-SB-F-D-30-A-R is a high-performance fire damper designed to meet the rigorous requirements of UL-555 standards. Engineered for critical life-safety applications, this damper ensures the containment of fire and smoke within HVAC ductwork, providing a 3-hour fire rating to protect building integrity and occupant safety.
Key Features & Specifications
- Fire Rating: Certified for 3-hour fire resistance under UL-555 testing.
- Construction: Sturdy frame and 3 'V'-type blades made from 16-gauge (1.4 - 1.7 mm) stainless steel for durability and corrosion resistance.
- Performance Limits: Handles maximum air velocity of 2000 fpm and operating pressure up to 4 in. w.g (1000 Pa).
- Actuation: Equipped with a 165°F (74°C) thermal response device and fusible link for automatic fail-close operation during a fire event.
- Compatibility: Supports Honeywell actuators (24V AC, 120V AC, 230V AC) and includes limit switches for BMS integration.
- Accessories: Includes stainless steel jamb seals, silicone rubber blade seals, and an external open/close indicator.
Compliant with SMACNA, NFPA, IBC, BOCA, and ICBO standards, this damper is suitable for round duct connections via neck adapters and can be installed with single or multiple sections depending on the duct size. The standard actuator location is on the left side from the rear view, ensuring easy maintenance access.
