180 Minute High-Hazard Fire Steel Door
FiroNex India Private Limited • Certified Life Safety & Turnkey MEP
TESTED & CERTIFIED FIRE-RATED DOORS
180 Minutes (3 Hours) IS 3614 / BS 476Steel Fire-Rated DoorsFiroNex Fire Safety Series
180 Minute High-Hazard Fire Steel Door
Engineered for high-hazard environments requiring 180 minutes (3 hours) of fire resistance, structural integrity, and insulation: refineries, explosive storage, and high-voltage transformer rooms.
Technical Specifications IS 3614 & BS 476 Tested
| Fire Rating Duration | 180 Minutes (3 Hours) IS 3614 / BS 476 |
|---|---|
| Testing Standards | IS 3614 / BS 476 Part 22 / NFPA 80 |
| Door Leaf Specification | 2.0mm Heavy Gauge Galvanized Steel Leaf with Full Stiffeners |
| Core Infill Material | Dual Layer Ceramic Fiber & Composite Fire Boards |
| Frame Profile | 2.5mm Heavy Pressed Structural Steel Frame |
| Fire-Rated Glazing / Vision Panel | Non-Glazed or Specialized High-Temperature Ceramic Window |
| Hardware Compatibility | High-Load Industrial Panic Bar, Heavy Ball Bearing Hinges |
| Standard / Custom Sizes | Heavy Custom Fabricated Profiles |
| Surface Treatment & Finish | Pure Polyester Powder Coating / Epoxy Primer in RAL Shades |
Key Engineering Features & Safety Advantages
Certified fire integrity & insulation rating up to 120 minutes tested in accordance with IS 3614 Part-2 and BS 476
High-strength galvanized steel (GPSP) construction with anti-corrosive primer and scratch-resistant powder coating
High-density non-combustible mineral wool / ceramic fiber honeycomb core for maximum thermal barrier performance
Intumescent perimeter fire & acoustic smoke seals expanding under high temperature to seal door leaf and frame gaps
Heavy-duty stainless steel ball bearing hinges, UL-listed panic crash bars, mortise deadlocks, and hydraulic door closers
Clear fire-rated vision panels equipped with certified high-temperature ceramic/borosilicate safety glass
Acoustic sound transmission loss rating up to 42 dB on specialized acoustic fire door models
Precision factory fabrication with folded double rebate frame profiles ensuring effortless turnkey architectural installation
Primary Application Sectors
Facilities where FiroNex Fire-Rated Doors & Passive Fire Systems are actively deployed
Commercial High-Rise Towers & Corporate Offices
Residential Townships, Condominiums & Group Housing
Hospitals, Medical Colleges & Healthcare Infrastructure
Industrial Manufacturing Plants, Refineries & Warehouses
Educational Institutions, Universities & Schools
Shopping Malls, Multiplexes & Retail Atriums
Metro Railway Stations, Airports & Transport Terminals
Data Centers, Server Rooms & Electrical Substations
Fire Door Products
30 Minute Fire Rated Steel Door
60 Minute Fire Rated Steel Door
90 Minute Fire Rated Steel Door
120 Minute Fire Rated Steel Door
180 Minute High-Hazard Fire Steel Door
Fire Rated Glazed & Vision Door
Glazed Fire Door with Fixed Partition
Composite Wooden Fire-Rated Door
Acoustic Sound-Insulating Fire Door
Clean Room & Hermetic Fire Door
Shaft & Fire Hose Cabinet (FHC) Doors
Intumescent Seals & Fire Door Hardware
Technical Documents
FiroNex Company Profile
Fire Door Product Catalogue
Certifications & Memberships
In-House Manufacturing Unit
Need Custom Door Sizing & Quote?
Speak directly with our passive fire safety engineers for custom masonry openings, vision panel cutouts, hardware schedules, and tested fire rating requirements (30 to 180 min).
Looking for Custom Opening Sizes?
Our in-house fabrication plant in Sector-63A Noida provides precision custom leaf dimensions, double rebate profiles, vision panel cutouts, and CFO compliance submittal drawings.