ASSA ABLOY DC 477
- Floor spring with adjustable closing force for large and heavy doors
- Certified in compliance with EN 1154, size 2-4, cycle test over 1,000,000 cycles
- Suitable for fire and smoke protection doors
- For double action doors up to 170 kg
Characteristics
- From 175° in both door swing directions with hydraulic control from 150°
- Two thermodynamic valves for consistent performance
- Adjustable door speed and latching speed from top regulating valves
- Backcheck
- Cast iron body
- Adjustments in all directions within the cement box
- Cement box in hot zinc plated
- Cover plates and eyelets made in polished or satin stainless steel and polished brass
- Interchangeable spindle from 0 to + 30 mm
- Available without hold-open or with hold-open angle 90° and 105°