Round fire damper for general ventilation systems with an electric
spring return actuator or a spring mechanism with a thermal fuse.
Fire damper LPO-L type designed for use in household ventilation
(general ventilation) in places where ventilation installation is going
through construction baffles which have specific fire resistance.
Its function consists in prevention of fire and smoke spread through
ventilation installations by maintenance of integrity and/or insulation
and/or smoke leakage.
