The DORMA BTS75V Floor Spring Mechanism Only is a size EN1-4 Floorspring with backcheck. It is CE Marked, available in single or double action and is not handed.Read more
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
The DORMA BTS80FLB EN4 Electromagnetic Swing Free Floor Spring is a floor spring with electro-hydraulic free-swing function and backcheck. It is CE marked and a power size EN4.
A DORMA Single Action Floor Spring Accessory Pack for use with DORMA Floorsprings on Single Action Doors.
A DORMA Double Action Floor Spring Accessory Pack for use with DORMA Floorsprings on Double Action Doors.
The DORMA BTS80EMB EN4 Electromagnetic Hold Open Floor Spring has electrohydraulic hold-open and integral pressure compensation feature for multipoint hold open between 65° and 175°. With adjustable, hydraulically controlled closing speed, adjustable latching action and backcheck.
The DORMA BTS80F EN4 Non Hold Open Floor Spring is a universal floorspring and comes complete with backcheck. Available as single action or double action, it offers fully adjustable closing speed. It is CE Marked and Certifire Approved CF 127.