It also has the function of preventing the spread of fire and smoke, which can prevent the spread of fire for a certain period of time, thus ensuring the evacuation of personnel. fire door

Usually installed in the following places.

(1) Enclosed evacuation stairs leading to corridors; Enclosed elevator lobby, doors leading to the front room and the front room leading to the aisle.

(2) Inspection doors for vertical pipeline shafts such as cable shafts, pipeline shafts, smoke exhaust ducts, and garbage chutes.

(3) Divide fire zones and control the fire walls and doors on the fire partition walls set up to control the building area of the zones. When a building is equipped with firewalls or fire doors, there may be difficulties

In difficult times, fireproof rolling shutter doors should be used instead, and water curtains should be used for protection.

(4) Standard design specifically requires fire-resistant and smoke proof partition walls and household doors.

For example: equipment rooms (cylinder rooms, foam stations, etc.) attached to fixed fire extinguishing devices in high-rise civil buildings, ventilation, air conditioning rooms, etc

Fire doors should be used for wall doors; Fireproof doors should be used for doors on the partition walls of basement rooms that are frequently occupied or have a large number of people; Due to conditions, in high-rise buildings

Internally arranged boilers for fuel and gas, oil immersed power transformers for fuel, high-voltage capacitors and switches filled with fuel, and dedicated room partitions

Doors should be equipped with fire-resistant doors. There are also fire-resistant branch doors with special design requirements, such as fire monitoring and command, archive rooms, and valuable item warehouses

The partition doors of warehouses and other facilities are usually fire doors. The partition doors of high-rise residential buildings often use fire-resistant and anti-theft doors. The demand for fire resistance performance of fire doors

Fire doors are an important component of fire protection equipment and a crucial part of social fire prevention. Fire doors should be equipped with fire door closers or set to be normally open

Fire doors are door closing devices that can automatically close the door leaf in the event of a fire (except for special parts such as pipeline shaft doors). That means besides some

Special parts such as pipeline well doors do not require the installation of door closers, while other parts require the installation of fire door closers.