3ds max automatic vent bilco - Bilco - Automatic Fire Vent by concept3D

All Bilco automatic fire vents utilize the patented Thermolatch® II positive hold/release mechanism. This unique latching device ensures reliable vent operation when a fire occurs and prevents inadvertent opening of the cover caused by wind, building vibrations or other factors. The Thermolatch II is equipped with a UL-listed 165°F (74°C) fusible link for automatic operation. In the event of a fire, heat breaks the fusible link, allowing powerful lifting mechanisms to open the vent cover instantaneously. Pull handles are provided for interior or exterior manual operation and heavy-duty shock absorbers assure smooth opening and eliminate the possibility of operational, roofing or structural damage.