Fire dampers shut automatically to prevent the propagation of fire and smoke through ductwork to adjacent designated fire compartments. FKS-EU fire dampers are tested according to European standards. Local requirements and building inspectorate approvals are essential in the country where the units are to be installed.

Correct approved installation locations are solid walls, solid ceiling slabs, gypsum wallboards and lightweight partition walls. Installation orientation and air flow direction are not critical. Combustible ventilation ducting may be connected directly to the fire damper. In the case of fire, the damper is triggered either by a fusible link at 72 °C or thermoelectrically with a spring return actuator. The release mechanism is accessible and can be tested from the outside. The fire dampers have two inspection panels.

Fire dampers type FKS-EU comply with DIN 4102-6, fire resistance class K90 and with EN 1366-2, classification EI90 (ve, ho i ↔ o) S.