The DORMA BTS75V Floor Spring Mechanism Only is an ideal closing solution for a door where a larger closer would be unsuitable. The floor spring may be installed in a thin slab concrete subfloor application.
There are a few models of this floor spring available that are designed to cater for a range of functions including non-hold open (for fire door applications), 90 degree hold open and 105 degree hold open (not suitable for fire doors).
There are a variety of interchangeable spindles that add to the versatility of the BTS75V. The variable power size can be adjusted to suit the door which is a great feature to ensure that it’s a perfect fit with your requirements.
The unit is universal/non-handed for pull or push side mounting and has adjustable closing and latch speed and comes complete with backcheck which helps prevent damage to the door and walls.
- Variable Power Size EN 1-4 c/w backcheck
- Max door weight 120kg - Max door width 1100mm
- Fully certified to EN1154, EN1634, CE Marked
- Adjustable Closing Sweep Speed - 170-15° & 15-0°
- Available single or double action (accessories sold separately)
- Non-Hold Open - for fire doors
- 90 degree & 105 degree hold open - for non-fire doors only
- Cover plate sold separately
