Fire doors are an important part of fire fighting equipment and an important part of social fire protection. Therefore, the quality and use of fire doors are the key to the success or failure of fire protection.
1. How to choose high-quality fire doors
Fire doors are particularly important as the first level of home fire protection, but when you buy inferior fire doors, the fire doors are no longer fireproof. What should you do? The municipal fire departments investigated and destroyed a batch of honeycomb paper instead of fireproof filling Fire-resistant doors of poor quality materials, here firefighters introduce a few tips for purchasing high-quality fire doors. According to regulations, steel and wooden fire doors can be divided into 90 minutes, 60 minutes and 30 minutes according to the fire resistance limit. The wood used to make wooden fire doors needs to be dried and flame-retardant. The hardware accessories used must also be fire-resistant hardware. Accessories.
There are three ways to buy high-quality fire doors. The first is to check the appearance. The high-quality steel\ fire doors are welded firmly and the solder joints are evenly distributed; the outer surface is smooth and smooth. The qualified wooden fire door should have a complete appearance, no damage, clean surface, no gouging marks, burrs and hammer marks; cut corners and seams should be tight and flat; there should be product marks, quality inspection marks and quality at the specified positions Certification (recognition) conformity mark.
The second trick is the number. The outer dimensions of qualified products should be less than or equal to the outer dimensions in the sample description, the thickness of the door leaf should be greater than or equal to the thickness of the door leaf in the sample description, and the width of the side wall of the door frame should be greater than or equal to the width of the door frame in the sample description. The outer dimension of the fireproof glass should be less than or equal to the outer dimension of the fireproof glass in the sample description, and the thickness of the fireproof glass should be greater than or equal to the thickness of the fireproof glass in the sample description.
The third trick is to look at the seals. Qualified steel and wooden fire doors should be equipped with fire-proof sealing strips. The sealing strips should be straight, without arches, and have a qualified test report issued by an authoritative testing agency.