Description Fire-rated rolling shutters are the primary defense for protecting large-scale openings in fire-rated walls. Manufactured from interlocking galvanized or stainless steel slats, these shutters function as a standard security door for daily use but transform into a life-saving barrier during an emergency. Equipped with thermal fusible links or integrated with the building?s fire alarm system, the shutters are triggered to close automatically when temperatures exceed a set threshold (typically 74?C). A built-in centrifugal speed governor ensures a controlled, safe descent by gravity, even if the power fails. These systems are rigorously tested to international standards like UL 10B/C and BS 476, providing up to 240 minutes of integrity to ensure safe evacuation routes and minimize property damage. Key Features Fail-Safe Gravity Closing: Specialized motor brakes release during a fire, allowing the shutter to close via gravity without needing electricity. Intelligent Activation: Triggered by thermal fusible links, local smoke detectors, or a signal from the central Fire Alarm Control Panel (FACP). Speed-Controlled Descent: Includes a governor to maintain a steady closing speed (approx. 250mm/sec), preventing injury or structural impact. Double-Skin Slat Options: Available with mineral wool (Rockwool) infill for added thermal insulation and acoustic dampening. Smoke Sealing: High-temperature brush seals and deep guide channels prevent the passage of toxic smoke and hot gases. Compact Storage: The curtain rolls into a space-efficient overhead hood, making it ideal for areas with limited headroom. Technical Specifications Fire Ratings: 1.5 Hours (Vertical) / 3 Hours (Horizontal) Testing & Compliance: UL 10B, NFPA 252, CAN/ULC S104, NFPA 80 Temperature Rise: Max $250?F$ ($121?C$) @ 30 Minutes Curtain Material: 20-Gauge Galvanized Steel (Interlocking Double-Skin) Frame Material: 16-Gauge Structural Steel Insulation Core: 2″ Thick High-Density Mineral Wool or Fiberboard Latching System: Automatic Self-Latching with Emergency Manual Release Hinge Type: Continuous Steel Piano Hinge or Concealed Spring-Loaded Activation Trigger: 24V DC Solenoid and/or $165?F$ ($74?C$) Fusible Link Standard Finish: White Polyester Powder Coat or Primed Gray Operational Speed: Regulated descent between 6″ to 24″ per second Dimensions: Customisable within certified limits
