How To Choose High Quality Fire Doors

According to the national standard gb12955-2008 fire doors, Chongqing fire doors can be divided into four parts: wooden fire doors, steel fire doors, steel wood fire doors and fire rolling shutter doors. According to the classification, except that the fire rolling shutter door is a special grade, others are divided into three grades: A, B and C.

How to identify the quality of fire doors and whether they are qualified fire doors? The simplest way is as follows:

1、 Look at the weight of the fire door

The interior of the fire door is filled with expanded perlite, so the weight is heavier than the general solid wood door or anti-theft door.

2、 Look at the verification statement

Fire doors are products requiring type approval. Regular fire door manufacturers will provide inspection statements and type approval certificates of fire doors.

3、 Look at the appearance

The surface outside the wooden fireproof door shall be polished or sanded; No gouging marks, burrs and hammer marks; Corner cutting and butt joint shall be tight and flat. The steel fire door shall be firmly welded and the welding points shall be evenly distributed; The outer surface is sprayed with flat lubrication.