Plate-type smoke exhaust outlet, installed in corridors or smoke-proof ante-rooms, at the exhaust outlet of the smoke exhaust system in windowless rooms, can be suspended from the ceiling or mounted on the side wall.
1. During a fire, the frame (housing) and blades should be able to prevent deformation and failure, with the plate thickness not being less than 2mm.
2. The fusible device should be a standard product approved by the fire department, with the melting point temperature complying with the design specifications.
3. The valve operation must be reliable, with a tight closure and the allowable air leakage should comply with relevant regulations.