Class C fire door

Understanding Class C Fire Door: A Comprehensive Guide by Guangdun Door Industry Co., Ltd.

Class C fire door hold a significant place , adhering to the stringent standards outlined in GB12955-2008 for fire doors in China. At Guangdun Door Industry Co., Ltd., we pride ourselves on our academic foundation and commitment to quality, ensuring that our products meet the highest industry standards.

Key Features of Class C Fire Doors

1. Material Specifications:
   Class C fire doors are constructed from galvanized steel with a minimum thickness of 1.2mm for both the door frame and the door leaf. If the door height exceeds 2.1 meters or the width surpasses 1.2 meters, the frame thickness must be increased to at least 1.5mm. This robust construction ensures durability and effective fire resistance.
2. Fire Resistance Performance:
   These fire doors must comply with the Class C fire resistance standards as specified in GB12955-2008. They are designed to prevent the spread of flames for a designated period while maintaining structural integrity, providing essential protection in emergency situations.
3. Dimensional Requirements:
   The minimum opening for a Class C fire door is set at 60cm, with the door leaf designed for smooth operation. The door is often made from single-piece, low-speed, simulated panel materials to enhance performance and aesthetics.
4. Assembly Requirements:
   Proper assembly is crucial for the effectiveness of Class C fire doors. The suspension system must be symmetrically closed on both sides, with an angle of at least 45°. Additionally, there should be no gaps between the oval sliders at both ends when the door is closed.
5. Closing Mechanism:
   To ensure safety, Class C fire doors must be equipped with a stopping mechanism that guarantees secure closure, with a closing speed not exceeding 5 seconds. This feature is vital for maintaining safety and preventing smoke and flames from entering protected areas.
6. Filling Materials:
   The filling materials for Class C fire doors must comply with environmental and fire safety standards. Common choices include fire-resistant materials such as perlite for the door leaf and cement-based fireproofing for the door frame.

Conclusion

Class C fire doors represent a crucial component in fire protection systems, combining safety, durability, and aesthetic appeal. At Guangdun Door Industry Co., Ltd., we emphasize the importance of adhering to these standards to provide our clients with reliable and effective fire-rated door solutions. With our extensive experience in the industry and commitment to quality, we stand out among fire door manufacturers, offering products that not only meet but exceed expectations.

For more information on our Class C fire doors or to explore our range of fire-rated door options, including the 30-minute fire door solutions, please contact us today. Your safety is our priority.