A comprehensive summary of detailed classifications of \”fire doors\” to help you get to know them again

1. The important components of the swing-open fire door: \”two doors\” + \”two fireproof doors\”

Classification:

1 divided by material

2 Classification and code by number of door leaves

3 According to structural type and code

Note: Door frame slot: double slot s, single slot d

Door leaf closing direction code: clockwise 5, counterclockwise 6 ( Memory straight 5 reverse 6)

4 Fire door fire resistance and code number

Three-naming:

Example 1: GFM-0924-bslk5 A1.50 (Class A)-1. It means a steel Class A fire door with glass glazing, size 0.9m*2.4m. The door frame has double notches on the lower frame, and the door closes smoothly.

Example 2: MFM-1221-d6B1.00-2. It means a wooden Class B fire door without bright strips, size 1.2m*2.1m, door frame No bottom frame, single slot, door closed in reverse order

3. Fire door accessories requirements

4. Overlap and activity gaps

5. Flexibility

1 Flexible opening and closing without jamming

2 Door leaf opening force should be ≤80 N

6. Fire door installation

1 Open in the direction of evacuation, and can open the door from any direction after closing (except for special circumstances)

2 Normally closed fire doors should be equipped with door closers, etc., double leaves and multiple leaves Fire doors should be equipped with sequencers

3 The fireproof bolt should be installed on the relatively fixed side (double or multiple fans)

4 The fireproof seal should be firm , intact.

5 The GFM door frame should be filled with cement mortar