Fire-Rated Corridor Door
Products Description
Guardian of the Horizontal Escape Route
The Fire-Rated Corridor Door is a critical life-safety component installed in the internal corridors, stairwell lobbies, and service shaft openings of public buildings like offices, hotels, schools, and hospitals. Its fundamental purpose is to compartmentalize fire and smoke during an emergency, effectively slowing their horizontal spread through escape routes. This Fire-Rated Steel Corridor Door provides vital extra minutes for safe evacuation and helps maintain the integrity of protected fire escape paths, acting as an indispensable passive fire protection barrier within the building's "life safety" infrastructure.
Engineered for Durability and Reliable Closure
Designed as a Fire-Rated Corridor Door, it must remain shut under daily use to preserve the fire compartmentation. Unlike entry doors, this Fire-Rated Steel Corridor Door faces constant use in high-traffic areas, demanding exceptional durability, stability through frequent cycling, and unwavering reliability from its closing device. Its construction strictly adheres to fire safety building codes, guaranteeing automatic and dependable performance in a crisis. The door leaf and frame are formed from sturdy cold-rolled steel, internally filled with Class A non-combustible insulation such as mineral wool or vermiculite board. It is rated to maintain integrity (and often insulation) for a standard period (e.g., 30, 60, or 90 minutes as per local codes like GB 12955). A continuous intumescent seal around the perimeter expands under heat to block toxic smoke.
Code-Compliant Specifications for Life Safety
| Critical Component | Requirement & Product Detail |
| Fire-Rated Hardware | All hardware is fire-certified: bearing-style steel hinges, a fire exit hardware device (like a push pad or touch bar that allows immediate egress without delay), and a reliable automatic closer. |
| Minimum Clear Width | The clear opening width typically must be at least 1100mm to comply with evacuation route requirements. |
| Surface & Gap | Usually finished in a powder-coated color (often white). Installation requires precise control of gaps (e.g., under-door clearance ≤8mm) and secure anchoring to the wall structure. |
| Professional Mandate | The Fire-Rated Steel Corridor Door must be installed and subsequently maintained by qualified professionals to ensure its life-preserving function is never compromised, making it a non-negotiable engineering essential for public safety. |
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