ASSA ABLOY DC 450 ASSA ABLOY DC 450 Floor spring with fixed closing force for very thin slabs Certified in compliance with EN 1154, size 3 or 4 Suitable for fire and smoke protection doors For double and single action doors up to 120 kg Characteristics Same dimensions for 2 bodies according to fix size EN3, EN4 Hydraulic control over 130° in both door swing directions Adjustable door speed and latching speed from top regulating valves Cast iron body Adjustments in all directions within the cement box Cement box hot zinc plated and only 40 mm high Cover plates and eyelets made in polished or satin stainless steel Interchangeable spindle from 0 + 30 mm Available with hold-open at 90°, 105° and without hold-open Related products ASSA ABLOY DC460 ASSA ABLOY DC420 ASSA ABLOY DC475