Comparison of Fire Resistance Performance
1. Type-A Fire Door
Fire Resistance Limit: ≥ 1.5 hours (ensures superior structural integrity and thermal insulation)
Applicable Scenarios: Perfectly suited for firewalls, oil storage facilities, power distribution rooms, cinema auditoriums, and other high-risk environments.
2. Grade B Fireproof Door
Fire Resistance Limit: ≥ 1 hour
Applicable Scenarios: Ideally designed for high-risk areas like evacuation stairwells, building vestibules, and standard equipment rooms.
3. Grade C Fireproof Door
Fire Resistance Limit:≥ 0.5 hours
Applicable Scenarios: Perfect for cable shafts, pipe shafts, smoke exhaust ducts, and other low-risk vertical pipe applications.