Easy to adjust for perfect control, the CE24V can be adjusted for power, closing speed and latching force, simply turn the valve controls to suit. The CE24V features a fully tested back check which cuts in when a fire door is opened to 75°, preventing damage to nearby walls or furniture and helping to prevent injury. CE24V Is independently certified for use on fire doors and is CE Marked to EN 1154 with variable power EN 2-4 (EN 1634 up to 120 min for timber).