Automatic Door Hold Open Device

These automatic door holders can be floor mounted or.

Automatic door hold open device.

Hold open devices there are a variety of devices available that will hold a fire door in the open position some even allow the door to be open closed or any. The hardware will engage and hold the door open. The geze door hold open devices and mechanisms allow doors to be closed more securely in any event of fire to prevent dispersion of harmful smoke gases. Electromagnets for hold open systems.

Regulations which apply allow fire and smoke check doors to be held open for a limited period of time by electromagnetic hold open devices which in the event of a fire or smoke are de energised to release the door so as to enable automatic closing. A simple pull on the door will cause the hardware to disengage allowing the door to be closed. These devices are also used where doors are need to be left open for short time intervals. Fire doors are important in terms of providing proper fire separation and preventing the spread of fire and smoke but in some situations it may be inconvenient or undesirable for fire doors to be closed all the time.

Door holders that are automatic just require a person to open the door until it comes in contact with the hold open device. Official door hold open device advice. The can be fitted to fire doors under certain circumstances. A hold open device is a mechanism that enables doors to be held open electronically.

Communities and local government guidance on fire risk assessment places restrictions on the use of automatic door hold open release devices to the effect that these may only be fitted where there is an automatic fire detection and warning system incorporating smoke detectors that is designed to. A door leaf normally required to be kept closed shall not be secured in the open position at any time and shall be self closing or automatic closing in accordance with 14 5 4 2 unless otherwise. Mechanisms hold open devices for self closing fire doors issue date october 2010 review date november 2013 ref fsnfg008 background this note for inspecting officers provides guidance on the standards that are considered appropriate in respect to automatic door release mechanisms hold open devices for self closing fire doors.