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2022
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Installation Method for Fire Doors in Guangxi
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Fire-resistant doors in Guangxi, classified by material, include steel fire-resistant doors and wood fire-resistant doors. These two types of fire-resistant doors differ significantly in terms of installation methods and certain practical details. Although their fire-rating levels are slightly different, careful attention to detail is required during installation. When installing and using wood fire-resistant doors, the door frame and its dimensions should be 20 mm smaller than the doorway. The bottom of the door frame should be buried 20 mm into the ground, and the frame must be securely fastened to the wall with a robust structural connection, ensuring that it opens at a vertical angle of 2 millimeters. When adjusting the support at 2 millimeters, pay close attention to maintaining the same angle to avoid unnecessary chiseling or sawing. The door frame and both sides should have no fewer than three fixing points, with a typical spacing not exceeding 800 mm.
Fire doors in Guangxi, classified by material, include steel fire doors and wood fire doors. These two types of fire doors differ significantly in terms of installation methods and certain practical details. They also vary slightly in fire-rating levels, so it’s important to pay attention to specific details during installation.
When installing and using wooden fire-rated doors, the door frame and its dimensions should be 20 mm smaller than the doorway. The bottom of the door frame should be buried 20 mm into the ground. The door frame must be securely fastened to the wall with a robust structural connection and opened at a vertical angle of 2 millimeters. When supporting the frame at 2 millimeters, ensure that the angles are identical to avoid any uneven cutting or sawing. The door frame and both sides must have no fewer than three fixing points, with a typical spacing not exceeding 800 mm.
Second, during the installation of steel fire doors, given the potential for bending and deformation of the door frame, the width of the frame should be supported by wooden beams. The bottom of the door frame should be buried 20 mm into the ground. Next, the embedded parts should be welded to both the door frame and the wall surface. Then, a hole should be chiseled into the wall at the upper corner of the door frame, and concrete mixed from cement, sand, and expanded perlite (in a ratio of 1:2:5) should be poured into the hole. Once the concrete has fully hardened, the door can be installed and used.
Guangxi Fire Prevention Door Sealing Requirements: National standards specify clear requirements for the overlap gap dimensions of fire doors. For steel fire doors, the gap between the door leaf and the door frame must be no less than 10 millimeters and no greater than 4 millimeters. After installation and closure, the fire door in Guangxi should not have excessively large gaps; otherwise, it would be difficult to ensure the proper performance of the door’s closing mechanism and to fully demonstrate its effectiveness in preventing the spread of fire and smoke under fire conditions.
Therefore, when installing Guangxi fire doors At that time, it is essential to strictly control the width of the gaps. By installing according to these standards and specifications, we can to some extent ensure the effective performance of fire doors. When users hire construction companies, they need to supervise the work in the surrounding area to prevent issues such as accidental pulling or other mistakes. This will help ensure that fire doors do not cause casualties in the event of a fire.
The new version of the software standard draws on certain aspects from international and foreign technical standards to define and specify requirements for both thermal-insulated fire doors and non-thermal-insulated fire doors. As a result, the classification of fire doors has been expanded from the previous single category based solely on thermal-insulated fire doors to a comprehensive classification that includes thermal-insulated fire doors (Class A), partially thermal-insulated fire doors (Class B), and non-thermal-insulated fire doors (Class C). Meanwhile, the original fire-resistance durations assigned to Classes A, B, and C—1.5 hours, 1.0 hour, and 0.5 hour respectively—have been adjusted, enriching the variety of fire door monitoring products available in Guangxi and providing more economically viable and practical options. For applications where only fire-resistant design materials or structures with complete safety integrity are required, we can now opt for fire doors that meet specific thermal insulation or heat preservation requirements.
The new standard also stipulates that if doors are filled with materials, they must be fire-resistant and thermal-insulating materials that are non-toxic and harmless, thereby minimizing the impact on human health. These national regulations not only make the installation of fire doors more scientifically sound and rational but also reduce the production costs and raw material consumption of fire door manufacturers in Guangxi, thus aligning with the requirements of environmental protection and the construction of a resource-efficient society. At the same time, the new standard has added content and requirements regarding steel-wood insulated fire doors and other insulated fire-door materials. This provides technical guidelines for the production and inspection of new materials, new processes, and novel fire doors, and expands both the development scope and opportunities for enterprises engaged in fire-door production management.
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