Smoke vertical wall is installed in the ceiling or floor or hidden in the ceiling, fire can prevent smoke and hot gas horizontal flow of the vertical divider. Smoke vertical wall is used in large-scale shopping malls and supermarkets. It is the necessary smoke-proof equipment in the crowded area of the building fire protection code. It is mainly used in high-rise or super-high-rise large-scale shopping malls, office buildings and warehouses, etc. . It can effectively block the lateral flow of smoke under the roof of buildings, so as to improve the smoke exhaust effect in the smoke control zones, it will play a positive role in ensuring the safety of people's lives and property.

The technical performance requirements: 

1, appearance 

(1) the sign of the smoke screen should be firm, the sign should be clear. 

(2) no cracks, craters and obvious defects such as bump, hammer marks, burrs and holes are allowed on the surface of the metal parts with smoke-proof vertical walls, there shall be no mottling or flowing. 

(3) there are no defects of tear, corner gap, patch, hole, incline, jumper, broken thread, obvious uneven density of warp and weft yarn and color difference in the vertical wall of rolling shutter type smoke screen; Its surface should be straight, clean, beautiful. 

(4) no dislocations are allowed in the assembly and splicing of the parts.

2. Materials and parts: all kinds of raw materials used in smoke-screen vertical wall must conform to the relevant national standards or industry standards.