The DORMA BTS 84 is a double action floor spring which has been specially developed for the aluminium and toughened glass door industries. This unit is intended to complement the RTS concealed overhead range of closers.
- All aluminium and timber door sets come with cover plate however if ordering closer on its own the cover plate is ordered as a separate item.
- Available in two strengths
- Adjustable door and latch speed
- Interchangeable spindle inserts available to suit site conditions
- Concealed unit for invisible installation
- Proven robust unit for door wiehgts up to 100kg
- Thermoconstant smooth operation
- High mechanical efficiency
- Optional single point 90 degree hold open