Fire doors, as one of the measures of fire separation in buildings, are usually used on fire walls, stairwell entrances or pipe well openings to prevent the spread and spread of smoke and fire.



1. Set class-A fire doors on firewalls and fire components that need to be opened



2. Class B fire doors are set up in the evacuation stairs and front room



Fire protection zone to the entrance of the refuge walkway should be set up smoke front room, the use of the front room area should not be less than 6.0 square meters, open the front room door should use a Class A fire door, the front room open to the refuge walkway door should use Class B fire door. When a fire occurs, the fire door can block the spread of fire and smoke within a certain period of time to ensure the escape of personnel.



3. Class C fire doors are set up in vertical pipe Wells



Vertical well such as cable well, pipeline well, flue, exhaust passage, garbage passage, etc., need to set Class C fire door to prevent fire and smoke from spreading through the shaft or pipeline well.



4, important equipment room need to set the corresponding level of fire doors



Fire doors must be set up in important equipment rooms to protect the safety of the equipment. Commonly used equipment rooms include: power distribution room (Class A), ventilation air conditioning room (Class A), fire pump room (Class A), elevator room (Class A), power generation room (Class A), oil storage room (Class A), fire control room (Class B), and fire extinguishing equipment room (Class B).