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Dorma Double Action Upper Arm for RTS 85 per piece
€98.54
In stock
Usage
The Dorma RTS 85 EN 4 concealed door closer is designed for installation in the lintel or head frame of single-leaf doors, providing controlled and efficient closing in commercial settings where an unobtrusive appearance is desired.
Advantages
- Completely hidden installation preserves door and wall aesthetics
- Suitable for both left- and right-handed doors without adjustment
- Adjustable closing speed and latching action for customized operation
- Certified for use on fire and smoke protection doors (EN 1154 compliance)
- Consistent performance across a wide temperature range due to thermodynamic valves
Specifications
- Slim, concealed design constructed from robust metal materials with silver finish (EV1)
- Lifespan tested to meet rigorous standards; certified according to EN 1154; suitable for barrier-free buildings per CEN/TR15894
- Covers doors up to EN size 4, supporting leaf widths up to approximately 1,100 mm; maximum opening angle up to 120°; adjustable speeds between specified angles[5]
- Non-handed mechanism fits both DIN left/right swing directions; compatible with standard guide rails (order separately) and support accessories such as backcheck or hold-open devices[5]
How it works
The Dorma RTS 85 EN 4 uses a concealed cam-motion mechanism within the lintel. When the door opens, the internal spring stores energy that is then released as the door closes, ensuring controlled and smooth movement with customizable closing and latching speeds.
