The classification of fire doors is the core link of building fire protection design, which is directly related to the protection effect and personnel safety in the event of a fire. According to national and international fire protection standards, fire doors are divided into three categories: Class A (≥ 1.5 hours), Class B (≥ 1.0 hours), and Class C (≥0.5 hours) according to the fire resistance limit, and different grades correspond to different application scenarios and functional requirements.
As the highest protection level product, Class A fire doors are often used in areas with high fire risk, such as factory warehouses, fire control rooms, equipment rooms, etc., and need to have the ability to effectively block flames and high temperatures. The Class A fire door of the pilot door industry adopts thickened steel plate base material and high-density fireproof core material, with high-temperature sealant strips, the fire resistance limit can reach 1.5-2.0 hours, and has passed international certifications such as GOST and CE to meet the needs of cross-border industrial engineering.
Class B fire doors have the widest range of applications, suitable for shopping malls, office buildings, hotels, residences and other densely populated places, taking into account fire safety and ease of passage. Its core advantages lie in balancing protection performance and user experience, such as the Pilot Door Industry's Grade B stainless steel fire door, which not only meets the 1.0-hour fire resistance requirement, but also has anti-rust and corrosion resistance, making it suitable for commercial complex projects in hot and humid areas of Southeast Asia.
Class C fire doors are mainly used in pipeline wells, cable wells and other auxiliary areas, focusing on the basic fire separation function, the product structure is relatively simple, and the cost performance is outstanding. When choosing, it should be noted that the fire door level must match the design of the building fire protection zone, and must pass formal testing and certification to avoid affecting fire acceptance due to inconsistency of the grade.
In addition, the hardware accessories of different grades of fire doors also have clear requirements, Class A doors need to be equipped with large load-bearing fireproof hinges and anti-prying locks, Class B doors can choose ordinary fireproof hardware according to the scene, and Class C doors can meet the basic opening and closing functions. Pilot Door Industry reminds that the selection should combine the three elements of building type, use environment, and local fire protection codes, and if necessary, customized services can be used to match special needs to ensure that the product is both compliant and practical.
