1.Lightweight and aesthetically pleasing;

2.Smooth running and low noise;

3.Can be made in large span;

4.Taking temperature rise of the backfire surface as the judgment condition, the requirement is more strict and the fire-resistant performance is more reliable;

5.It can exist independently and divide the fire protection area separately;

6.No need for water curtains and other fire-fighting auxiliary systems, reducing costs.

1.Door curtain material: made of three layers of material composite, the backfire surface using heat radiation cloth or other high temperature resistant cloth, the middle heat insulation layer selected by the special treatment of the enhanced aluminum silicate fire-resistant fiber blanket. The average temperature rise of the backfire surface is 140℃, the maximum temperature rise of single point is 180℃, and the fire resistance limit is 3.0h.

2.Opening and closing speed: 2-9m/min.

3.Smoke leakage: not more than 0.2^3^2min.