Characteristics of Fire Doors-LANGHAO,Aluminum alloy shutter manufacturer

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Characteristics of Fire Doors

May 28,2025

Fire safety guarantee: In the event of a fire, receiving a fire signal or in the event of a power outage can ensure the smooth closure of fire doors. Double leaf fire doors can also be closed in an orderly manner, reducing casualties and property damage. It can be centrally monitored or independently illuminated to display status.

Normally open fire door
Fire safety guarantee: In the event of a fire, receiving a fire signal or in the event of a power outage can ensure the smooth closure of fire doors. Double leaf fire doors can also be closed in an orderly manner, reducing casualties and property damage. It can be centrally monitored or independently illuminated to display status.
Easy installation: Installed on the door frame, not affected by surrounding buildings; Only 4CM is needed for the broadband of the door frame, without changing the structure of the fireproof door; Both sliding and sliding doors can be installed, or concealed.
Easy to use: manual free opening, automatic reset; To avoid damage to equipment and door bodies caused by electromagnetic door suction closing.
Convenient daily management: Under normal conditions, the fire door can be opened freely between 0-135 degrees, maintaining a normally open state, facilitating personnel access and daily management, while reducing the number of times the fire door is opened; When the fire door is controlled to close, it has a buffering function, reducing collision damage when closing and extending the service life of the fire door.
Normally closed fire door
Emergency evacuation function: Fire linkage unlocks evacuation and has voice reminder evacuation function.
Daily status function: equipped with security function, people outside cannot enter without keys, and people inside will push the push rod to sound an alarm reminder; Anti pry function has been set up.
Monitoring function: Not only can it provide fire linkage information during a fire, but the fire door monitor also monitors the opening and fault information of the door in real-time and comprehensively, providing two-way information feedback to achieve centralized monitoring in the fire monitoring room.
INSTALLATION REQUIREMENTS
To prevent smoke or fire from entering the evacuation passage through door openings and ensure the relative safety of the evacuation passage for a certain period of time, fire doors should be kept closed as much as possible during normal times. Except for positions where normally open fire doors are allowed, normally closed fire doors should be used for all other positions.
Except for manhole maintenance doors and residential doors, fire doors should have a self closing function, so normally closed fire doors should be equipped with automatic door closers; Double leaf fire doors should have the function of self closing in sequence, therefore a sequencer should be installed on the double leaf fire doors; Normally closed fire doors should have warning signs such as "keep fire door closed" prominently displayed.

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Composition of Fire Doors

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