Function of fire door
1. The fire door can meet the requirements of fire resistance stability, integrity and heat insulation within a certain period of time. It is located in fire compartment, evacuation staircase, vertical shaft and other fire-resistant partition.
2. 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 people.
Functions of other fire doors:
Normally open fire door
The normally open fire door is kept open at ordinary times, which makes it convenient for people to pass, ventilation and lighting, and can be closed by itself in case of fire, so as to prevent smoke and fire. Thus, the inconvenience caused by the fire door closing at ordinary times and the man-made damage caused by the frequent opening and closing of the fire door are completely solved, and at the same time, the fire safety is guaranteed.