Detailed Product Description

The Product have been listed into the National Code for Design of building fire protection.

Features:

1) Mannual and electric control

2) equipped with smoke sensor,temperature Sensor, sound and light alarm, which can be connected to the fire center for achieving online control.

3) infilled with Aluminium silicate fiber.

3) The product could be installed with correspondiing releasing device with the self-weight, and automatically descend to the close situation, and can be used together with fire water-spray facilities.

Working Principle:

when there is fire, the smoke sensor,temperature Sensor, sound and light alarm sends out signal, the door may automatically descend, and then stop at the position 1.8m to the floor, the temperature sensor sends our signal again, the door decend to the floor and close. Pressing any button on either side of the door for escaping, the  door may ascend to 1.8 height, and then descend after a few minutes, it can be operated repeatedly.

Technical Parameters:

1)fireproof property>=3.0 hours

2)Smoke isolation property:smoke leakage<0.2m3/min.m2 when pressure difference is 20 Pa.

3)fireproof wind pressure strength:50,80,120kg/m Class 3

4) On/Off speed: 0.5-1.5kw

5)motor powder:0.5-1.5kw

6) work voltage:AC380V,50Hz,install intensive or weak power control device according to actual requirements.