Usually the type of double curtains and double slideways is adopted. The one curtain is used as fireproof;
Usually the type of double curtains and double slideways is adopted. The one curtain is used as fireproof; the other is replaced water screen. It can guarantee the highest temperature of
non-burn area to come up to the standard GB9978-99. The quality of this product is soft, strong tensile strength, good integrity and lightweight. So it is suitable for fireproof and every industry and civil buildings with corridor connected up and down floors, open stairs, auto staircase and division area of common space.
The fireproof limit is bigger than 4 hours. The temperature of highest single point of the back of fire is 45.7.The balance temperature of the back of fire is 38.7 . The open and close speed is 38m/s.
The ability of wind pressure resistance is according to the standard GB14102-93.
There are two installing types. These are inside installing and outside installing.
The auto-warning device, gear control device and handle control can be set for the electrical control.
The main characteristics are as follows:
a)It can realize the warning of smoke sensor for double times delayed; the curtain door can automatically slide down.
b)It can realize the warning of smoke sensor for once. The curtain door can automatically slide down. And at the same time it can feedback the sight of door position to the Fire Center.