钢制防火卷帘门 Fire shutter door
帘片： 双层帘片厚度1.0mm, 中间填充物为防火棉（玄武岩），门体抗风载荷为180kg/m。阻燃试验达到等级为B1级。
Curtains: The double-layer curtain is 1.0 m m thick, the intermediate filler is fireproof cotton (basalt), and the wind-resistant load of the door is 180 kg/m. The flame retardant test reaches grade B1.
轨道：全部采用2.0mm厚宽12mm的热镀锌钢板制成，防火卷帘门专用电机，可以承载重负荷运转。
Track: All of them are made of 2.0 mm thick and 12 mm wide hot-dip galvanized steel sheet. The special motor for fire-proof rolling shutter door can carry heavy load operation.
平均升降速度：2.5-7m/min
Average speed of rise and fall: 2.5-7m/min
耐火时间：3-4小时
Fire resistant time: 3-4 hours.
透烟量：0.18 m³/㎡min
Smoke penetration: 0.18 M / / min
电动上下，自动闭锁，手动下落；
Electric up and down, automatic locking, manual drop;
掣动方式：采用防火门专用电机，220V-380V电动机械式掣动。
Pull mode: Adopt special motor for fire door, 220V -380V electric mechanical type.
当火灾烟感作用时，帘门自动下落
When the fire smoke feels, the curtain door falls automatically.
