Detailed illustration of fire door! It’s all useful stuff, hurry up and collect it

1. Graphical introduction to fire doors

2. Graphic and text introduction of accessories

2.1 Fireproof rock core board (filled with thermal insulation and fireproof materials)

2.2 fireproof bolt (double door with door leaf fixedFunction)

2.3 sequencer (Used in conjunction with the door closer, it controls the closing sequence of double doors.)

2.4 Fireproof lock (fireproof door lock)

Fire lock: Generally used for Class A fire doors and Class B fire doors.

Class A doors are generally installed in equipment rooms. Fire control room, basement, air conditioning machine room, transformer room, diesel generator room, etc.

Class B fire doors are generally installed in fire protection Access stairways, escape routes, etc.

The fire resistance time of Class A doors is 1.5 hours. Class B fire doors are 1.0 hours.

Fireproof lock body specifications: 25mm wide and 200mm high ( Locking screw 4mm diameter)

2.5 Tubewell Lock

Tube well lock: generally used for Class C doors

Class C fire doors are generally used in pipe wells, water well rooms, and electric well rooms.

The fire resistance time of Class C doors is 0.5 hours.

Tube well lock body specifications are 25mm wide and 145mm high ( Locking screw 4mm diameter)

2.6 lock cylinder

Fireproof lock cylinder : Used for Class C fireproof locks.

TongkaiLock core: used for Class C doors and normally open doors.

Unlockable lock core, used for normally closed doors.

A. Normally open: usually open condition. a, Generally set on the evacuation passage. B. An independent fire compartment in the building leads to a fire door in another fire compartment area. c. People-dense places in high-rise public buildings, such as shopping malls, hospitals, hotels, schools, etc. These fire doors that are used both for fire elevators and passenger elevators are all normally open.

B. All Level C doors are normal When the door is closed, all lock cylinders are opened.

C. Normally closed door: usually closed . a. Tube well doors are usually normally closed. Water and electricity will not be opened unless maintenance is done. b. Set up in the fire control room, equipment room, fire pump room, diesel generator room, etc.

2.7 door closer

Ordinary door closers: divided into positioning door closers and non-positioning door closers.

A. Position the door closer and open the door to The door can be parked at 90° and needs to be pulled by hand to close it. (Generally used for normally opening the door)

B .If the door closer is not positioned, the door will automatically close no matter what angle it is opened to. The door closer can be opened to 120°~180° without positioning. (Generally used for normally closed doors)

B3 Door closer hole distance is 19mm wide and 162mm high

2.8 electric door closer

Electric door closer : Divided into normally open and normally closed.

A.1 Electric normally open door closer: Normally open fire door is open at ordinary times and automatically closed in case of fire. Because it is kept in the open state at ordinary times, it facilitates the passage of personnel, and it can be automatically closed in case of fire to prevent smoke and fire. This solves the inconvenience caused by the normal closing of the fire door to the passage of people, as well as the damage to personnel caused by the frequent closing of the fire door. Fire safety is ensured at the same time. Therefore, normally open fire doors should be installed in crowded places such as shopping malls, hospitals, hotels, etc. Normally in the open state, the fire sensor will control the electric door closer to close automatically.

B.2 electric normally closed door closer: Normally closed doors are generally located in places that do not affect the evacuation of personnel. As well as fire control rooms, fire pump rooms, equipment rooms, etc., places with a fixed flow of people are all normally closed fire doors. Once the normally closed door is opened, the electric normally closed door closer will transmit a signal to the fire control center. Management will know right away.

C.3Normally open doors can be equipped with electric door closers, and normally closed doors can be equipped with door magnetic switches. No need to install at the same time.

2.9 doors Magnetic switch

Door magnetic switch: divided into two types: normally open and normally closed

A.1 fire door normally open magnetic switch function, the door magnetic switch is powered on when the door is open. Once the normally open door is accidentally closed, the door sensor will transmit the signal to Alarm system, the alarm will sound

B.2 The normally closed door magnetic switch function of fire doors is generally used on normally closed fire doors. And it is used in the largest proportion. Normally closed doors are usually closed. If someone opens the door, the door magnetic switch senses If it is not magnetic, the signal will be transmitted to the alarm system, and the alarm will sound.