Dorma Hold Open Device

The proven solution for controlled hold-open of fire and smoke check doors. Universal application capability, stable hold-open point and assured quality. The DORMA TS 73 EMF is a combination of hydraulic door closer and electromagnetic hold-open unit. In conjunction with a smoke detection system, the TS 73 EMF can be used as a hold-open system for fire and smoke check doors.

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.

• Data Sheet