What are the standards for fire doors?

We all know that fire doors are widely used in all kinds of public places. Its good fire performance is favored by people. What do we know about fire door standards ? So today we look specifically at the relevant content of fire door standards .

The fire door standards 1 , the current national standards "architectural design fire prevention code", "high-rise civil building design fire protection code", "the civil air defense design flame code" and other provisions of the A, B, C fire doors, windows will correspond to The new standards are A1.50 (Class A), A1.00 (Class B), and A0.50 (C Class).

Fire door standards 2 , reference to international standards and standards of foreign developed countries, combined with the production, installation and use of fire doors in China, conducted in-depth investigation, analysis and research. The new standard introduces the concepts and requirements of some heat-insulated fire doors and non-insulated fire doors from international and foreign standards. The classification of fire doors has been changed from insulation fire doors to insulation fire doors (A). Category), Partially insulated fire doors (Class B) and Non-insulated Fire Doors (Class C) are classified.

Class A fire doors, also known as fully insulated fire doors, can meet the requirements of fire-resistance, heat-insulation and fire-resistant integrity at the same time. The fire-resistance grades are 0.5h (C grade), 0.10h (B grade), and 1.5 respectively. h (grade A) and 2.0h, 3.0h.

Class B fire doors, also known as partially insulated fire doors, have a fire-resisting insulation requirement of 0.5 h and fire-resistance integrity ratings of 1.0, 1.5, 2.0 and 3.0 hours, respectively.

Class C fire doors, also known as non-insulated fire doors, are not required for their fire-resistance and heat insulation. They only meet the requirements of fire-resistance integrity within the specified fire-resisting time. The fire-resistance integrity grades are 1.0h, 1.5h, and 2.0h, respectively. , 3.0h. In the British BS standard, there are non-insulated fire doors.

Fire door standard 3 , flat open fire door: consists of door frame, door leaf, fireproof hinge, fireproof lock and other fireproof hardware fittings. The hinge axis is perpendicular to the ground. The axis can be rotated in clockwise or counterclockwise single direction to open Or close the door of the fire door.

Steel wood fire doors: Doors, door leaf skeletons, door leaf panels are made of steel and flame-retardant wood materials or fire-resistant wood products. If the door leaf is filled with material, it is filled with non-toxic and harmless fireproof and heat insulation materials. Fireproof hardware fittings with a certain fire resistance of the door

Steel fire doors: Doors, door leaf skeletons and door leaf panels are made of steel materials. If the door leaf is filled with material, it is filled with non-toxic and harmless fire-proof and heat-insulating materials, and it is equipped with fire-proof hardware fittings with a certain fire resistance. Performance of the door.

The standard for fire doors 4 and the thickness of the hinges (hinge) for fire doors shall be not less than 3 mm and their fire resistance shall comply with the provisions of Appendix B.

Fire door standards 5 , fire door closers shall be inspected and approved by a national authorized inspection agency, and their performance shall comply with the provisions of GA 93. The door closing device that automatically closes the door leaf shall be inspected and qualified by a nationally recognized authorized testing agency.

Fire door standards 6 , fire bolts using steel fire bolts, should be installed in the double fan fire door or fire door relative fixed side of the door (if required), its fire resistance should comply with the provisions of Appendix D.

Regarding the standard of fire doors , I will introduce them to you here. I hope to help you, and more information on the decoration will be provided on this site. Stay tuned.

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