No.6 Development Road, Mazhai Industrial Park, Erqi District, Zhengzhou City, Henan Province
Stainless steel fire door
The door frame is made of stainless steel with a thickness of not less than 1.2mm.
The door leaf is made of stainless steel with a thickness of not less than 0.8mm.
完整性和隔热性要求的门。 Fire doors are doors that meet fire resistance stability, integrity, and thermal insulation requirements within a certain period of time . It is a fire-resistant partition with certain fire resistance, such as a fire-resistant partition room, an evacuation stairwell, and a vertical shaft.
In addition to the role of ordinary doors, fire doors have the function of preventing the spread of fire and smoke, which can prevent the spread of fire for a certain period of time and ensure the evacuation of personnel.
Fire doors are generally located in the following locations.
(1) closed evacuation stairs leading to the walkway; closed elevator room,
New national standard requirements for fire resistance of fire doors
Doors leading to the front and front rooms to the walkway.
(2) Inspection gates for vertical wells such as cable wells, pipeline wells, smoke exhaust ducts, and garbage channels.
(3) Divide the fire prevention zone and control the firewall and the door on the fire prevention partition wall. When it is difficult to install a fire wall or fire door in a building, the fire shutter door should be used instead, and the water curtain must be used for protection.
(4) Standards (such as GB50016-2014 "Code for Fire Protection in Architectural Design") or partition wall door with special requirements for fire and smoke prevention.
For example: Class A fire doors should be used in the equipment rooms (cylinder rooms, foam stations, etc.) of fixed fire extinguishing devices attached to high-rise civil buildings, and partition walls of ventilation, air-conditioning room, etc .; The door on the partition wall of the basement room should be a Class A fire door; due to the restrictions, fuel and gas boilers, fuel-oil-immersed power transformers, fuel-fillable high-voltage capacitors and switches must be arranged in high-rise buildings. Class A fire doors shall be used for the doors on the partition wall of the special room. There are also household doors with special requirements that require fire protection, such as those for fire monitoring and control centers, archives and reference rooms, and valuables warehouses. Class A or B fire doors are usually used. High-end residential buildings often use fire doors. GB 12955-2008 requirements for fire resistance of fire doors
Fire doors are an important part of fire protection equipment and an important part of social fire prevention. Fire doors should be equipped with fire door closers or door closing devices that allow normally open fire doors to automatically close the door when a fire occurs (special Except for the use of parts, such as pipeline well doors, etc.). That is to say, except for some special parts, such as pipeline well doors, it is not necessary to install door closers, and other parts are required to install fire door closers.