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November 30, 2021
Fire doors refer to doors that can meet the requirements of fire stability, integrity and heat insulation within a certain period of time. It is a fire partition with a certain degree of fire resistance, such as fire compartments, evacuation stairwells, and vertical shafts.
In addition to the function of ordinary doors, fire doors also have the function of preventing the spread of fire and smoke, which can prevent the spread of fire within a certain period of time and ensure the evacuation of personnel.
Classification by editing Voice
There are actually many types of fire doors.
There are wooden fire doors, steel fire doors, steel-wood fire doors, other fire doors, etc.;
Wooden fire door
fire resistant timber doorsets
Use non-combustible wood or non-combustible wood products as door frames, door leaf frames, and door leaf panels.
Steel fire door
fire resistant steel doorsets
The door frame, door leaf frame and door leaf panel are made of steel materials. If the door leaf is filled with materials, it is filled with non-toxic and harmless fire-resistant and heat-insulating materials, and equipped with fire-resistant hardware accessories to form a door with certain fire resistance.
Steel wooden fire door
fire resistant timber doorsets with steel structure
Use steel and non-combustible wood materials or non-combustible wood products to make door frames, door leaf frames, and door leaf panels.
Fire doors of other materials
other material fire resistant door sets
Use inorganic non-combustible materials other than steel, non-combustible wood or non-combustible wood products, or partially use steel, non-combustible wood, and non-combustible wood products to make door frames, door frame, and door leaf panels. If the door leaf is filled with materials, fill it A fire-resistant and heat-insulating material that is non-toxic and harmless to the human body, and is equipped with a door with a certain fire-resistant performance composed of fire-resistant hardware accessories.
There are access control fire doors, indoor fire doors, explosion-proof fire doors, quick-locking fire doors, quick opening fire doors in case of fire, etc.;
There are electronic fire doors, multi-function fire doors with built-in fire door closers, etc.;
According to the open state, it is divided into normally closed fire doors and normally open fire doors. Normally closed fire doors are generally composed of fire door leaves, door frames, door closers, and sealing strips. Double or multiple normally closed fire doors are also equipped with sequencers. Normally closed fire doors usually do not require electrical professional to provide automatic control design, but there are also some special cases such as: normally closed fire doors on evacuation passages, when some large-scale construction parties have management requirements such as anti-theft, they should be designed by electrical professionals. It is possible to reduce safety hazards in an all-round way. As for the normally open fire door, in addition to all the accessories of the normally closed fire door, the fire door release switch must be added, and the automatic control design must be provided by the electrical professional. It is usually applied to evacuation passages where there are more people and logistics.
Fully insulated doorsets (Type A) fully insulated doorsets
A fire door that can meet the requirements of fire integrity and heat insulation at the same time within the specified time.
Partially insulated doorsets (Type B) partially insulated doorsets
A fire door that meets the requirements of fire integrity and heat insulation within the specified time greater than or equal to 0.50 h.
No insulated doorsets (C type) no insulated doorsets
A fire door that can meet the requirements of fire resistance integrity within the specified time.