Comparison of Fire Resistance Performance Across Different Grades
1. Type-A Fire Door
Fire Resistance Limit: Optimized for excellence with a duration of ≥ 1.5 hours, ensuring optimal integrity and insulation.
Applicable Scenarios for Type-A: Ideal for high-risk areas such as firewalls, oil storage rooms, power distribution rooms, and cinema auditoriums, where superior fire protection is paramount.
2. Grade B Fireproof Door
Fire Resistance Limit that Ensures Reliable Performance: ≥ 1 hour, providing robust protection in demanding environments.
Applicable Scenarios: Specifically crafted for high-risk areas like evacuation stairwells, vestibules, and ordinary equipment rooms, where dependable fire safety is essential.
3. Grade C Fireproof Door
Fire Resistance Limit: Tailored for Efficiency≥ 0.5 hours, providing essential protection for lower-risk environments.
Applicable Scenarios: Perfectly suited for cable shafts, pipe shafts, smoke exhaust ducts, and other low-risk vertical pipe shafts, ensuring reliable fire safety.
Audited Supplier 
){kind=link}