What to do about fire doors that slam shut or that do not close completely?

Fire door slams shut or does not close completely

There are several situations in which fire doors don’t close completely, in spite of an overhead door closer:

• The doors form an airlock where two fire doors are situated within a short distance. When the first door is opened and closed again while the second door remains closed, an air cushion develops which may prevent the complete closing of the door. However, when the second door is open, the first door often slams shut loudly.
• An access door to a small room with a window. Depending on whether the window is open or closed, the same aforementioned situation can occur.

DICTATOR door dampers for fire doors

By now, many manufacturers of fire protection or smoke control doors have included the DICTATOR door check in their door approval or manufacturer’s declaration as complement to the spring hinge or the overhead door closer. The DICTATOR door dampers V 1600 and V 1600F assure the final closing of the door by pulling it shut until it is securely closed. There won’t be no more partially open fire doors. And it also prevents the door from slamming shut in case both doors are open.

The main advantages of door dampers for fire doors