DormaConcealed Floor Spring
| Item Code | BTS 80 EN 4 |
| Certification | Tested to EN 1154 |
| Length | 341 mm |
| Width | 78 mm |
| Height | 60 mm |
| Closing Force | EN 4 |
| Max Door Width | 1100 mm |
| Max Door Weight | 300 kg |
| Hold Open | Adjustable |
Certified manufacture to ISO 9001.
- For single & double action doors
- Concealed installation for maximum visual elegance
- Suitable for doors up to 300 kg
- Suitable for installation with LH or RH single- and double-action doors
- Interchangeable spindles enable easy adaptation to structural conditions – even when retrofitted
- Constant, temperature independent closing cycle.
- Highly efficient mechanism gives maximum user convenience.
