MSFD-GB-31C1-A-R UL 555 Fire Damper with Actuator
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Product description
The MSFD-GB-31C1-A-R is a high-performance fire damper engineered to meet UL 555/555S standards, ensuring reliable fire containment within HVAC ductwork. Designed with a 3-hour fire rating and Class I leakage performance, this damper provides critical protection against fire spread in commercial and industrial ventilation systems.
Key Features
- Certification: UL 555/555S listed for fire dampers.
- Fire Rating: 3 hours of fire resistance.
- Leakage Rating: Class I according to UL 555S.
- Max Velocity: 2000 fpm (feet per minute).
- Operating Temp: Up to 250 °F (121 °C) for 30 minutes.
- Max Pressure: 4 in. w.g. (1000 Pa).
Construction & Components
Built with a 16-gauge galvanized steel frame and parallel-operated 3 'V' type blades, the damper ensures structural integrity and efficient air sealing. It features silicon rubber blade seals and stainless steel jamb seals for durability. The actuator is compatible with major brands like Honeywell, Belimo, and Siemens (24V AC, 120V AC, 230V AC), allowing for seamless integration into Building Management Systems (BMS).
Applications
Ideal for air handling units, rooftop units, and duct penetrations in hospitals, data centers, and high-rise buildings where fire safety compliance is mandatory.
