Tips for purchasing 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 no longer fire. What should you do? According to regulations, steel and wooden fire doors can be divided into three categories: Class A, Class B, and Class C according to their fire resistance limits. The fire resistance requirements are 90 minutes, 60 minutes and 30 minutes, and the wood used to make wooden fire doors needs to be Dry and flame-retardant treatment, the hardware accessories used must also be fire-resistant hardware accessories.

1.Check the appearance, the high-quality steel \ fire door is welded firmly, and the solder joints are evenly distributed; the outer surface is sprayed smoothly; there should be a product mark, a quality inspection mark and a quality certification (approved) mark at the specified position. The qualified wooden fire door should have a complete appearance, no damage, clean surface, no planing marks, burrs and hammer marks; cut corners and seams should be tight and flat.

2. For numbers, the external dimensions of qualified products should be less than or equal to the external 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, fireproof glass The outer dimensions should be less than or equal to the outer dimensions 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.

3. 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 arching, and have a qualified inspection report issued by a national-level inspection agency.

4. Estimate the weight. The fire doors with qualified quality are generally heavier, and those with very light fire doors must be products of inferior quality.

5. Check the certificate. The fire door is a product included in the type approval system. The product needs to be type tested before being sold. The general type inspection report describes the sample size, composition, material and product photos in detail. When purchasing, you need to obtain a type inspection report from the manufacturer.

In fact, the choice of fire doors is very important. You can compare and understand the advantages and disadvantages of different materials. At the same time, you should also pay attention to some material selection methods and skills. Of course, you can take a look at the coups for purchasing fire doors, because some fire doors are of high quality, and the appearance is also very high-guaranteed. The types of materials and the effects of use are also very good.