Security is the top priority in home life, and most families opt for security doors to protect their homes. A security door, also known as an anti-theft security door, is designed with both safety and protection in mind. According to the "General Technical Conditions for Anti-theft Security Doors," a qualified security door should not be opened or forced open within 15 minutes using tools like chisels, screwdrivers, or crowbars. It must also resist being opened through a 615 mm² hole on the door panel or a 38 mm square opening in a 150 mm diameter semicircle. Additionally, the lock installed on the door must be a high-security model that has passed testing by the Ministry of Public Security. **Installation Methods** **1. Expansion Bolt Installation Method** First, check if the size of the door opening matches the door frame. If it’s too small, remove the excess mortar. Next, position the door frame so that its decorative edge is flush with the wall. Mark six φ14.5 holes on the side of the frame, then drill them and insert M10 expansion bolts. Tighten the nuts with a socket wrench to secure the frame firmly. **2. Cement Filling Method** If the frame is already filled with polyurethane foam, there’s no need to add cement. However, if the foam isn’t used, fill the space with cement to ensure a solid connection between the door and the wall. Before filling, place a paper pad between the door frame and the door leaf, and close the door while filling. Avoid applying excessive pressure during the process to prevent warping. After 6 hours, remove the paper pad, open the door, and clean the lock hole. **Installation Tips** - Choose the appropriate installation method based on the type of security door. - The door frame can be fixed using expansion bolts or embedded iron pieces during construction. Ensure all connections are strong and secure. - Each side of the door frame should have at least three anchor points to maintain stability. - Install the door by first aligning it properly, then temporarily securing it before making final adjustments. - The sliding door should move smoothly, and the swing door should open and close easily without gaps. - Install anti-theft devices between the door frame and the door leaf for added security. - All hardware, such as handles, locks, and peepholes, should be complete and functional. For multi-functional doors, features like electronic locks, alarms, and intercom systems must work effectively. - The gap between the door and the floor should not exceed 5mm. Security doors are categorized into A-level, B-level, and C-level based on their security performance. Among these, C-level offers the highest level of protection, followed by B-level, and A-level provides the lowest. Most commonly found in stores today are A-level security doors, which are ideal for general residential use. When purchasing a security door, it's important to choose reputable brands with good customer service. Look for product certifications, such as the “FAM” logo, to ensure compliance with safety standards. This helps guarantee that your security door will serve its purpose effectively. [Follow the WeChat public account “Jiuzhengmen Window Network” for more updates, business opportunities, and exclusive content. Scan the code now to join our exchange group! ]

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