DICTATOR fire door dampers
Fire doors often don’t close completely despite having a closing device, possibly because a second door near this door is closed. The air in this ‘interlock’ functions as an air cushion and thus prevents the door from completely closing. However, in case the second door is open, the fire door usually closes with a loud bang.
DICTATOR door dampers are the solution.
V 1600 F Fire door damper
The approved solution for fire and smoke doors