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Certified Steel Fire Rated Door | 30‑120 Min Fire‑Proof Safety Door
Compliant steel fire rated door for fire compartment & emergency escape. Single‑leaf & double‑leaf options, mineral wool fire‑resistant core, intumescent smoke seal, full certified fire hardware, optional fire‑proof vision window. Suitable for stairwell, corridor, hotel, hospital, commercial complex and factory fire exit.
30‑120min Fire Rating Single‑Leaf Fire Door Double‑Leaf Fire Door Intumescent Smoke Seal Panic Bar Device Fire‑Rated Vision Window
Main Product Types
Single‑Leaf Steel Fire Door
Standard single‑leaf fire door for regular pedestrian escape passage.
Common size: 900*2100mm, 1000*2100mm
Inward / outward opening configurable
For stairwell, office corridor, utility room
Optional fire‑proof vision window
Double‑Leaf Steel Fire Door
Wide‑width double‑leaf fire door for large escape opening.
Wide opening for crowd evacuation
Asymmetric / symmetric leaf layout
Public building, factory main fire exit
Coordinate with panic exit hardware set
Fire Door with Vision Window
Fire‑proof glass vision panel for observation while maintaining fire‑resistance.
Certified fire‑resistant glass panel
Restricted glass size follow fire code
Hospital, lab, control room application
Keep smoke & fire barrier performance
Industrial Fire‑Rated Wicket Door
Integrated fire‑rated pedestrian small door on large industrial gate.
Built‑in fire wicket for daily access
Matches main industrial large door
Factory warehouse fire‑compartment requirement
Full fire‑rating inherited for whole assembly
Technical Specification Table
Item
30min Fire Rated Door
60‑90min Fire Rated Door
120min Heavy‑Duty Fire Door
Door Leaf Material
Galvanized steel sheet, fire mineral wool core
Thickened galvanized steel sheet, high‑density mineral wool
High‑risk industrial zone, chemical plant, high‑rise critical fire compartment
Core Structure & Fire‑Safety Hardware
Steel fire rated door adopts bending welded galvanized steel shell, filled with high‑density fire‑resistant mineral wool core. Intumescent sealing strip expands under high temperature to block smoke and flame penetration. All hardware must be fire‑safety certified to meet building code requirements.
Intumescent Fire‑Smoke Seal Strip: Expand under fire high‑temperature, seal gaps between leaf and frame, prevent smoke and flame spread.
Fire‑Certified Hinges: High‑temperature resistant hinges, enough quantity configured according door leaf weight, avoid deformation under fire condition.
Adjustable Fire‑Rated Door Closer: Guarantee automatic door closing, core mandatory component for fire‑escape fire door.
Panic Exit Push‑Bar: Emergency inward push to open from inside; anti‑panic function for crowd evacuation passage.
Fire‑Proof Lock & Accessories: Fire‑resistant lock body, cannot use ordinary domestic lock; fire‑rated glass vision panel upon request.
Laser cutting, bending, welding for steel door leaf & frame
Fill high‑density fire‑resistant mineral wool core, install intumescent sealing strip
Powder coating surface finish; assemble full set fire‑certified hardware
Complete closing‑cycle test, gap inspection before goods delivery
On‑Site Installation Critical Points
Anchor fire door frame firmly to concrete wall, ensure frame verticality
Control uniform gap between door leaf and frame for intumescent seal performance
Install certified fire hinges, door‑closer, panic bar strictly follow specification
Debug door‑closer closing speed & latching function; door must self‑close reliably
Check intumescent seal strip full perimeter installation; hand‑over with compliance documents
Typical Application Scenarios
Commercial & Civil Building
Stairwell fire escape doors
Corridor fire compartment partition
Hotel, hospital, shopping mall emergency exit
Basement, mechanical‑electrical equipment room
Industrial Project Sites
Factory workshop fire‑compartment separation door
Warehouse fire escape passage
High‑risk plant fire‑safety isolation
Fire‑rated wicket door integrated on large industrial gate
Daily Inspection & Maintenance Tips
Check door‑closer function regularly, ensure fire door can automatically close and latch completely.
Inspect intumescent seal strip for damage or missing; damaged seal must be replaced timely.
Check fire hinges fixing bolts, prevent loose causing leaf sagging and gap out‑of‑tolerance.
Prohibit fire door from being blocked or fixed in permanently open position against fire‑code rule.
Test panic push‑bar device periodically to guarantee reliable emergency evacuation operation.
FAQ
1. What is steel fire rated door?
Steel fire rated door is fire‑compartment safety door filled with fire‑resistant mineral wool core, to block fire & smoke spreading for specified time, widely used for building fire escape routes.
2. What fire resistance ratings are available?
Available 30‑minute, 60‑minute, 90‑minute and 120‑minute fire‑rating grades for different building code requirements.
3. Can fire door install vision window?
Yes, adopt fire‑proof wired glass / fire rated glass vision panel, must comply with fire‑safety standard.
4. Must fire door equip door closer and panic bar?
Fire escape exit fire door requires certified door closer for auto‑close; outward‑opening emergency exit needs panic push‑bar device.
5. Difference between single‑leaf and double‑leaf fire door?
Single‑leaf for standard pedestrian passage; double‑leaf fire door for wider escape opening in public buildings and factories.
6. What compliance documents can you supply?
Fire test report, certification certificate, CAD shop drawings, material list, hardware datasheet, installation guide for project tender.
Company Introduction
Hunan Lianxin Chitai Intelligent Doors & Windows Co., Ltd. is a manufacturer specializing in the research, development, production, sales, and service of intelligent doors and windows. Established in 2010, the company evolved from Changsha Lianxin Door Industry Processing...
Company Introduction
Hunan Lianxin Chitai Intelligent Doors & Windows Co., Ltd. is a manufacturer specializing in the research, development, production, sales, and service of intelligent doors and windows. Established in 2010, the company evolved from Changsha Lianxin Door Industry Processing...
