Beteccad UL-555S Smoke Control Damper (MSD-SB-30C1-A-R)

The Beteccad MSD-SB-30C1-A-R is a high-performance smoke control damper designed to meet the rigorous requirements of UL-555S standards. Engineered for critical HVAC applications, this damper ensures effective smoke containment and ventilation control in commercial, industrial, and residential buildings. It features a robust galvanized steel frame and precision-machined stainless steel blades that maintain structural integrity under high-temperature conditions.

Key Features & Specifications

• UL-555S Certification: Meets Class I leakage rating with a maximum velocity of 2,000 fpm.
• Heat Resistance: Capable of withstanding temperatures up to 250°F (121°C) and operating pressures up to 4 in. w.g. (1000 Pa).
• Durable Construction: 16-gauge galvanized steel frame with parallel-operated 'V' type stainless steel blades.
• Sealing System: Equipped with silicon rubber blade seals and stainless steel jamb seals for optimal airtightness.
• Actuator Compatibility: Supports Honeywell, Belimo, and Siemens actuators (24V AC, 120V AC, 230V AC).
• Compliance: Adheres to SMACNA, NFPA, IBC, BOCA, and ICBO standards.

Designed for easy integration into existing ductwork, this damper includes optional fittings such as retaining angles and a thermal response device (TRD) rated at 165°F (74°C). It features limit switches for BMS integration and an external indicator for visual open/close status. Note: Specify Fail Close (FC) or Fail Open (FO) functionality during ordering to match your specific fire safety protocol.