Function of fire door

Fire door refers to the door that can meet the requirements of fire resistance stability, integrity and thermal insulation within a certain period of time. It is a fire compartment with certain fire resistance, which is located in fire compartment, evacuation staircase, vertical shaft, etc.

In addition to the function of ordinary doors, fire doors can also prevent the spread of fire and smoke, which can prevent the spread of fire within a certain period of time and ensure the evacuation of people.

The laboratory is accredited by the Ministry of Fire Protection and the Ministry of Economy, according to the new version of fire door standard GB implemented on January 1, 2009_ 12955-2008, those who pass the fire resistance test of fire doors and obtain the registration certificate and authorization mark issued by the Bureau of Standards and Inspection of the Ministry of Economy are called fire doors. The fire door defined in the American NFPA and IBC codes is "any combination of fire door leaves, door frames, hardware and other accessories that can jointly provide a certain degree of fire protection at the opening."