(1) After the smoke detector acts, the roller shutter drops to 1.8m above the ground (floor);

(2) After the temperature detector acts, the roller shutter will drop to the bottom.

Detailed description of Henan fireproof door:

The fire shutter used for fire separation shall be lowered to the bottom after the fire detector acts; The alarm signal of smoke and temperature detectors and the closing signal of fire shutter shall be sent to the fire control room.

There are many ways to lower the fire shutter: manually - pull the manual zipper, electrically - press the ground electric button, Henan fire door automatically - receive the signal from the smoke temperature sensor or the fire control center to automatically lower, and the fire deadweight drops - burn off the fuse release at about 70 degrees Celsius, open the lock of the door roller, and Henan fire door shutter drops by deadweight.

Extended data:

The rolling shutter door body is made of high-quality stainless steel and other materials. It is connected by the parallelogram principle, with flexible expansion. Henan fire door driver is driven by special motor, and the worm gear decelerates. Henan fire door is equipped with manual clutch, which can be opened and closed manually in case of power failure. The rolling shutter door is of telescopic lattice type, which is characterized by stable opening and closing, perspective door body, and small space occupation after opening.

By setting an intelligent infrared anti climbing device, the system will give an alarm immediately when someone climbs the door, so as to ensure the safety inside the door. Special profile: the strength of high hardness zinc aluminum alloy profile can be greatly enhanced by adding different geometric shapes of ribs. The surface of Henan fire door has been treated with special electrophoresis, which has infinite luster, is not easy to stick dust, is not corroded by polluted gas, and will never rust, and has a long warranty period.