FD240 Fire Doors

Description
Our FD240 Fire Door represents the pinnacle of passive fire protection, offering an unprecedented 240 minutes of integrity. Engineered primarily for high-risk industrial sectors?including petrochemical plants, power stations, and ammunition stores?this door is built to survive the most intense fire scenarios. Unlike standard fire doors, the FD240 is manufactured from high-gauge galvanized steel skins with a specialized internal honeycomb or mineral reinforcement. This ensures that the door remains a solid, unbreached barrier against flames and hot gases for four full hours, providing emergency services with maximum time to manage catastrophic events.

Key Features
4-Hour Integrity: The maximum fire rating possible under BS 476 Part 22 testing standards.
Heavy-Gauge Steel Construction: Uses reinforced steel skins to prevent the structural melting or warping that occurs in timber at 4 hours.
Extreme Heat Resistance: Designed to maintain its seal in furnace temperatures exceeding 1150?C – 2100?F.
Corrosion Resistance: Typically galvanized and powder-coated, making it suitable for harsh industrial or coastal environments.
Enhanced Security: The structural steel build naturally provides high-level resistance to forced entry and physical impact.
Blast Resistance (Optional): Many FD240 doors can be dual-certified for blast and fire protection.

Technical Specifications
Fire Rating: FD240 (240 Minutes / 4 Hours Integrity)
Testing Standards: BS 476 Part 22:1987 or BS EN 1634-1
Leaf Thickness: 55mm to 65mm (Steel-faced)
Metal Specification: 1.5mm to 2.0mm Galvanized Steel Skins
Frame Material: 2.0mm – 3.0mm Zintec or Galvanized Steel Frame
Internal Infill: High-density Mineral Wool or Specialized Ceramic Fibre
Intumescent Seals: Multi-row high-pressure graphite expansion seals
Hinges: Heavy-duty Stainless Steel Dog-Bolt hinges (Min. 4)
Hardware: Fire-rated panic bars or 3-point locking systems
Glazing: Highly restricted; usually requires specialized wired/ceramic glass
Dimensions: Customisable within certified limits