The DORMA RF is a non-handed mechanical hold-open unit.
The hold-open unit can be switched on and off by the user as required, and the pull-off force can be adjusted to suit each individual door situation.
The DORMA RF hold-open unit can also be supplied for retrofitting to the slide channel at a later date.
Hold open is not suitable for fire or smoke doors.
Suitable for TS91, TS92 & TS93 door closers.
Hold open illustration