Everyone knows that the special grade fire shutter can prevent the fire from spreading, so how does it fire when the fire breaks out? Here are five things to know:

    1. When a fire occurs, the fire shutter in the middle of the fire control system under the control of, according to the preset program automatically put down (down), so as to achieve function, to prevent the spread of flame to other scope for the implementation of fire extinguishing win precious time.

    2. When the fire, smoke sensor installed on the roof (smoke) first received smoke signals, report to the central control system at the same time, after the fire by identifying the central control system on fire area of fire shutter power, make the fire area of fire shutter downward at a certain rate. When the curtain goes down to about 1.5 meters from the ground, it will stop descending to facilitate the evacuation and evacuation of personnel. The fire shutter door stays in the center for a certain period of time, then continues down until it is closed.

    3. The descending speed and intermediate residence time of fire shutter doors can be adjusted during installation.

    4. In some cases, the building is not equipped with fire control central control system, fire shutter by means of fire control electric box of fire shutter fire shutter fire prevention regulations, to run the program. In this case, when the fire alarm occurs, the fire alarm received by the smoke sensor is transmitted directly to the fire control electrical box of the fire shutter door.

    5. In the case of power failure, the fire shutter door can only be lowered by pulling the chain. Fire shutter door is equipped with manual, only one way down, cannot ascend.