Henan fireproof door Setting place and fire-proof door Setting type

The fire door installed on the passageway leading to the evacuation staircase and the antechamber should be set as: normally open fire door or normally closed fire door. Whether there are specification requirements.

The fire door installed on the passageway leading to the evacuation staircase and the antechamber should be set as: normally open fire door or normally closed fire door. Henan fireproof door Whether there are specification requirements. There are many differences between each type of fire door. It can be divided into different types according to different conditions. There are many types of fire doors. For example, there is no difference between normally open fire doors and normally closed fire doors according to different opening modes.

Fire door is a kind of high temperature resistant door set in various buildings to avoid the spread of fire. There are steel and wood. Reduce smoke diffusion. It can automatically expand the dead space in case of fire. The frame around the fire door is pasted with a smoke bar.

The doors of the staircase and its antechamber shall be normally closed. Because the opening and closing frequency on the channel is high. Henan fireproof door Only the ones on the firewall that are open in the corridor and passageway can be made into the ones that are normally open. Moreover, the passage is more unobstructed.

As long as the electrical professional intelligent control. If there are special requirements, it can also be set as normally open, of course. The cost is higher than that of ordinary fireproof doors. More solenoid valves and signal feedback devices.

The door must be pushed to open, and the normally closed fire door is normally closed. When someone walks around. In particular, there is a large flow of people in large markets. If a normally closed fire door is set in the evacuation staircase. The fire door will soon be damaged and fall off. Because of frequent opening and closing, it can not play a role in fire prevention. Fire hazard is formed. However, the normally closed fire door does not have certain advantages in this open state: because the place where the fire door is installed is generally the passageway where people often walk. The normally closed fire door is usually closed. This leads to certain opposition.

Henan fireproof door Thus, the inconvenience caused by the normal closing of the fire door to the passage of personnel and the man-made damage caused by the frequent opening and closing of the fire door are solved. At the same time, it ensures fire protection. Normally open, normally open fire door shall be set. In case of fire, various sensors are used to control the door closer to close the door. Therefore, evacuation staircases in some large markets are used. Automatic shutdown in case of fire. On the contrary, normally open fire doors are usually open. The doors of the staircase and its antechamber shall be normally closed. The ventilation and lighting are convenient, and they are usually kept open. It has the function of smoke separation and fire resistance, making it convenient for people to pass, and can be closed automatically in case of fire.

Only the fire door on the evacuation corridor is open. The signal shall be fed back to the control room. However, the fire shall be automatically shut down. Whether fire doors must be set up at the in store, restaurant and outside doors. More solenoid valves and signal feedback devices. The cost is higher than that of ordinary fire doors.