Main Products Of Fire Doors

New version of fire door

1. It is required to install an electronically controlled automatic release device for the normally open fire door;

2. The requirements for fireproof glass are more detailed;

3. Added the test method for the quality requirement of the door leaf of the fire door;

4. Increase the test method for the curvature of the door leaf width direction;

5. Added the test method for the gap between the door leaf and the door frame joint surface;

6. Increase the flexibility of the fire door to beg drop test method;

7. Added test method for reliability of fire doors;

8. The test method for the twist degree of the door leaf of the wooden fire door has been improved;

9. The measurement method of the overlap size of the door leaf and the door frame has been added.

Judgment criteria

1. Compared with GB 12955-1991 and GB 14101-1993, the main changes of the new national standard for fire doors are as follows:

2. Increase the classification according to the function of fire doors, which are divided into normally open fire doors, normally closed fire doors, and mobile fire doors;

3. The classification of fire resistance function of fire doors has been revised, from the original classification according to A, B and C, to this version according to "insulation fire doors (type A)", "partially insulated fire doors (type B)" and "Non-insulated fire doors (Category C)" classification;

4. The requirements for fire door materials are more comprehensive and detailed. For materials other than metal materials, the requirements for material combustion performance and material combustion smoke toxicity are added;

5. Delete the requirements for the wind pressure deformation resistance, air infiltration resistance and rainwater infiltration resistance of wooden fire doors used as exterior doors of buildings;

6. The functional requirements for fire locks are more detailed.