Today, fire safety is becoming more and more important. Fire doors are the first line of defense to ensure life safety when fires occur. As a result, the production of fire doors has flourished. Looking at the fire door market, various types of fire doors with various functions are emerging one after another. The main material here is the high-tech materials, and the people watching are dazzled, but what kind of fire doors are? Is it qualified? Do you know the major elements of the fire door purchase? Let us give you a detailed explanation today. According to national regulations, steel and wooden fire doors can be classified into Class A, Class B and Class C according to fire endurance. The fire endurance requirements are 72 minutes, 54 minutes and 36 minutes respectively, and the wood used for making wooden fire doors is required. Drying and flame retardant treatment, the hardware components used must also be fireproof hardware accessories. Do you know how to choose a fire door? Yuanan Door Industry has three tips for you to buy high-quality fire doors. The first measure is to check the appearance. The high-quality steel fire door is welded firmly and the welding points are evenly distributed; the outer surface is smooth and smooth; the product mark, quality inspection qualified mark and quality certification (acceptance) qualified mark should be in the specified position. The qualified wooden fire door should be complete in appearance, without damage, clean surface, no burrs, burrs and hammer marks; cut angles and seams should be tight and flat; product marks, quality inspection marks and quality should be provided at the specified positions. Certification (approval) pass mark. The second measure is the number. The size of the qualified product should be less than or equal to the outer dimensions of the sample description. The thickness of the door should be greater than or equal to the thickness of the door in the sample description. The width of the side wall of the door should be greater than or equal to the width of the side wall of the door in the sample description. The outer dimensions of the fireproof glass shall be less than or equal to the outer dimensions of the fireproof glass in the sample description. The thickness of the fireproof glass shall be greater than or equal to the thickness of the fireproof glass in the sample description. The third measure is to look at the seal. The qualified steel and wooden fire doors should be provided with fireproof sealing strips. The sealing strips should be straight and without arching, and there is a qualified inspection report issued by the national testing agency. As the most professional fire door manufacturer in China, Yuanan Door Industry (58FHM.COM) has been adhering to the concept that quality is the life of the company since its birth. It has been committed to the development and production of fire doors for many years. Quality requirements come to control the product. The company has a strong research and development team, integrates cutting-edge technology with the latest design concepts, and at the same time, pays attention to the user's after-sales tracking and service, and insists on using its own efforts to serve the society and the public. Yuanan Door Industry reminds everyone that the fire door market is mixed, so be careful when choosing, and purchase qualified and powerful manufacturers. Don't be tempted to choose a poor quality fire door if you are cheap, and it will cause a great disaster in times of crisis. [Follow the WeChat public account "Jiuzhengmen Window Network" to view the latest hot article "Tomorrow, I have to find you a dunning!!!" More industry exchanges please join the Jiuzhengmen window network exchange group] Automatic Thread Insert Installation Tool Threaded Insert Tool,Helicoil Installation Tool,Helicoil Master Thread Repair Kit,Automatic Thread Insert Installation Tool Xinxiang Donghai Industry Co., Ltd. , https://www.thaicoil.com
Do you know how to choose a fire door?