Door closer FD740

Easy, initial door opening due to the rapidly decreasing opening force. When active, the free-swing function enables permanent opening of the door without the resistance of the door closer. The door remains in free-swing mode until the power supply is switched off. Door leaf and frame mounting on hinge side, DIN left and DIN right doors. 14 mm height adjustable arm system for ease of fitting. Closing speed and latching speed adjustable via front facing regulating valves. Variable adjustable closing force. Closing speed and latching speed adjustable via front facing regulating valves. Thermodynamic valves for consistent performance. Effective latching speed range adjustable. DIBt tested as a hold-open system with various smoke detector systems. Certified in compliance with EN 1155/1154, size 3-6. Suitable for fire and smoke protection doors. For single action doors up to 1400 mm wide. Variants for door leave mounting and frame mounting on hinge side and frame mounting on opposite hinge side. Fulfils barrier-free building requirements (EA / CEN TR 15894).