2557 SERIES HEAVY DUTY ARM ASSEMBLY Silver

The Lockwood 2557 Series is suitable for use on internal and external doors and is an ideal solution for extremely heavy doors. Maximum door weight 160kg and door leaf width 1600mm with standard arm installation. Features Adjustable closing force size EN 5-7 according EN1154 Separate adjusting valves for closing and latching speed Back Check (BC) as a standard feature Wide operating temperature range: -35°C to +45°C Adjustable closing latching and back check valves Easy adjustment of arm height (14 mm) Two pressure relief valves to protect against abuse Die-cast aluminium body manufactured from high performance silicon alloy Note: Parrallel arm (push side) is not available on this model.