BILCO ACDSH mechanically-operated Smoke Vents are designed to protect against noise intrusion while providing the security of automatic smoke venting. Vents feature an industry high STC-46 sound rating and are ideal for concert halls, theatres and other interior applications that require limited noise from the outside. Vents are preassembled of steel construction.
|MATERIAL||Cover and frame are 14 gauge (1.9mm) G-90 paint bond Galvanised Mild Steel|
|OPERATION||Corrosion-resistant gas springs open covers automatically against a 10psf (49 kg/m²) snow/wind load when released. Gas springs have built-in dampers to assure a controlled rate of opening and automatically lock the covers in the full open position.|
|PATENT||U.S. Patents 5,927,012 & 5,960,596 & 6,347,818|