Electromagnetic Hold Open Door Closers

Some springs can be adjusted to make doors open more easily.

Electromagnetic hold open door closers. The dorma ts 73 emf is a combination of hydraulic door closer and electromagnetic hold open unit. The swing free configuration is ideal for use on bedroom doors in care homes as residents may find it difficult to open these heavy fire rated doors. When de activated the electromagnet disengages and the door closer closes the door in the normal manner to maintain fire safety. An electromagnetic hold open overhead door closer for commercial and public access use.

When connected to the building fire alarm or detection system each door closer unit can be set to either hold open or swing free operation. In either case the power of the door closer can be temporarily disabled to allow free passage. The electromagnetic door closer series is a range of fixed power door closers with an integrated electromagnetic hold open mechanism. Designed for virtually any remote door release application electromagnetic door holders releases can be be tripped by an alarm or smoke detector or triggered by a remote switch.

In conjunction with an alarm smoke detection system the ts 73 emf can be used as a hold open free swing door closer for fire and smoke check doors. Available to either hold open or free swing an electromagnetic door closer is linked to the fire alarm with the aim to provide free access while also closing a door in the event of a fire. The hold open function enables a fire door to be held open whilst in normal use until activation of the fire alarm when the door closes. Free swing door closers allow a fire door to operate as if no door closer is fitted a must in care homes or any place where ease of access is required.

Floor mounted available for single doors or two doors mounted back to back adequate space must be considered for floor mounted holder releases. Arrow electromagnetic hold open or swing free 623 4 5 6 universal linked to the buildings fire detection system in either hold open or swing free mode the closers aid flow of traffic throughout the building but shut automatically upon first detection of a fire. Arrow electromagnetic hold open or swing free 623 4 5 6 universal the arrow electromagnetic hold open or swing free series of fire door closers is the ultimate solution to ensure compliance with both fire safety regulations and bs8300 and adm guidelines. A hold open unit will hold the door in the open position generally between 90 and 120 degrees and again close it securely in to the frame upon activation of the alarm.

Manual door closers employ compression or torsion springs to automatically close doors after opening. The springs store energy when opening and release energy when closing. Successfully third party tested to bs en1155.