Natural ventilation automatic opening mechanism NSHEV

The Open and Close system allows opening and closing for maintenance operations only, on NSHEV devices for roofs. NSHEVs can be activated either through emergency CO2 cylinders, or through a compressed air system with remote control. The Open and Close system can be installed on CAODURO® devices such as SMOKE OUT® (certified for complex 300 cycles of operation), SMOKE OUT VERT™, SMOKE LAME™ PT and SMOKE LAME™ TT. This allows the staff to check at any time the functioning of the NSHEVs over the normal scheduled maintenance provided by law, without the economic burden of an intervention on the roof and the replacement of consumables (CO2 cylinders and thermosensitive elements).