Dorma TS 73 EMF Hold-open system

The DORMA TS 73 EMF is a combination of hydraulic door closer and electro-magnetic hold-open unit. In conjunction with a smoke detection system (e.g. DORMA RMZ), the TS 73 EMF can be used as a hold-open system for fire and smoke check doors. The hold-open of the door is performed under electro-magnetic control. In the event of a fire, the door is reliably closed by the integral hydraulic closer. The closing cycle is also initiated by manual door operation or automatically in the event of a power failure.