Revvo Delfire series of motors are designed to be a part of smoke and heat control ventilation systems. They are also used with jet fans to exhaust smoke, NOx or other gases from tunnels, car parks, areas and other enclosed spaces.  These motors are guaranteed to operate continuously for a period of up to 2 hours and at temperatures of up to 400°C.  Delfire motors are available in single or dual speed configurations and are compliant to EN 12101.