Door closers, hold-open systems and accessories from GEZE and DORMAKABA

Door closers are particularly useful or mandatory in apartment buildings or public buildings. If the door closes automatically, it prevents unauthorised persons from entering in residential buildings. Door closers catch the momentum of a door that has been thrown open violently or caught by the wind, thus preventing damage to the door or adjacent walls.

Preventive fire protection

Door closers play a particularly important role in the area of preventive fire protection.
Fire doors separate building sections from each other and prevent the spread of fire or smoke into another building section. If fire doors have to be kept open to ensure regular operation in a building, the doors must be equipped with a hold-open system. A smoke switch or smoke detection panel detects toxic smoke gases at an early stage, releases the hold-open solenoid and thus cancels the hold-open of the door. Fire or smoke protection doors must generally be equipped with approved door closer systems and checked once a year by a specialist company.