Product features
Products with automatic magnetic release to absorb steel door, steel door in a normally open state, ensure smooth channel, when receives the fire signal, magnetic automatic tripping device to magnetic force, steel door in the function of automatic return to the hinge automatically shut down, and the terminal position trigger limit switch, the shutter down fire partition. At this point, the person can be evacuated through the escape door on the open steel door. An escape door can be fitted with a door cloister to keep it closed. When open, it will be opened by pressing the new box, and the steel door will be pushed to the open state by hand.
Using range
It is suitable for fire shutter with escape door in civil building.
This type of fire shutter is used when there is only a shutter in the building and there is no other entrance and exit.
Type and performance metrics.
type | Refractory limit／h | Performance indicators |
Open steel doors with regular steel doors | ≥3.00 | Quantity of smoke leakage [m cubed /(m squared. Min)]: less than or equal to 0.2. Compressive strength (Pa): greater than or equal to 784. Shutter speed (m/min): greater than 2 ~ 9. Average noise of opening and closing: no more than 75dB. Normally open steel door closing time <20S. Open steel door refractory grade: class a fire door. |
Open steel doors with regular steel doors. |
