The KFSD-L-111: A Certified Combination Fire & Smoke Damper

Engineered for safety and compliance, the Model KFSD-L-111 is a UL 555 and UL 555S Classified combination fire and smoke damper. Designed for dynamic smoke management systems, this damper is rated for use in partitions with a fire resistance of up to 4 hours. Its ultra-low leakage rating ensures superior air containment and reliable performance when it matters most.

Key Product Highlights

  • Dual Classification: The KFSD-L-111 is both a fire and smoke damper, certified to meet UL 555 and UL 555S standards.
  • Safety Compliance: This damper meets NFPA 90A, 92A, and 92B criteria for primary fire and smoke dampers in walls and floors, providing peace of mind for your project.
  • Reliable Operation: Designed for dynamic closure in vertical installations, the damper handles a maximum static pressure of 4” W.G and velocity up to 4000 FPM.
  • Robust Construction: A durable 16-gauge galvanized steel frame and corrosion-resistant components ensure long-lasting performance. The silicone seals and stainless steel jamb seals provide an airtight seal up to 450°F.
  • Flexible Actuation: The damper features a reliable RS-100 electronic fusible link with a 165°F closure temperature. It is compatible with a range of electric spring return actuators (230V, 120V, or 24V) and pneumatic options.

Specifications at a Glance

  • Materials: 16-gauge galvanized steel, sintered bronze bearings, and silicone seals.
  • Actuators: Electric (230V, 120V, 24V) or pneumatic.
  • Dimensions (Single Section):
    • Minimum: 8″ x 8″
    • Maximum: 36″ x 36″

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