Automatic Door Hold Open Device

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.

Automatic door hold open device.

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. The only approved method of keeping a self closing fire door in the open position is by fitting an automatic hold open device that is suitable for the location in question. 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.

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. A hold open device is a mechanism that enables doors to be held open electronically. A simple pull on the door will cause the hardware to disengage allowing the door to be closed. 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.

Official door hold open device advice. 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. 2 pack stainless steel magnetic door stop catch holder floor mount magnet door stopper wall prop hold open doorstop only works for the door gap between 0 2 0 5 inch silvery 3 8 out of 5 stars 292 11 98 11.

Door hold open devices are used for controlling the hold open function on fire proof doors. Door holders that are automatic just require a person to open the door until it comes in contact with the hold open device. These devices are also used where doors are need to be left open for short time intervals.