Duo-Chek® Model 10, 12, 15, 16
The Duo-Chek® is for high-end residential applications, such as the double-acting door going from the kitchen to the dining room.
The weight of the door is supported at bottom • Uses laws of gravity to its advantage • Door swings with less resistance • Reduced stress on the frame
Fasteners are in shear, not tension • Eliminates door sag
Hardened steel spindles • Thrust bearing supports vertical load • Needle bearings for lateral forces • Bottom arm directly attached to closer spindle. A mechanical advantage that increases efficiency, ensuring that ADA compliant opening forces will still close the door • One-to-one ratio of door swing to spindle rotation makes control more precise • Floor closers are more efficient than a regular arm surface closer.