AV4: THE TURNING POINT AGAINST THE THERMAL EXPANSION OF DOORS
Are you or your customers frustrated with doors that are difficult to operate and unlock? Are you making costly site visits to address issues caused by thermal expansion? If you want to eliminate unnecessary service calls for sticky locks, keeps and hinge adjustments while saving time and money, as well as boosting your sales and brand reputation, then AV4 is the solution to smooth operation in the face of thermal expansion. A known industry issue, thermal expansion is a natural phenomenon where materials expand when they are heated, and contract when they cool down. This occurs because heat causes the atoms in the material to vibrate more vigorously, which in turn makes them occupy more space. Thermal expansion can have practical implications on the functionality of all door materials, affecting fit, operation and durability over time. Winkhaus UK, a pioneering force in the door hardware market, has a solution. The newest
innovation in autoLocking solutions, AV4, has been designed to directly address these challenges, whilst remaining easy to operate for the widest range of users.
Adapting to misalignment As a door naturally moves, more force is required to engage the locking mechanism, as the parts no longer align. This means that extra pressure needs to be applied to turn the key, effecting use and functionality for the doorset and triggering call outs for the installer to investigate. However, AV4 has been designed to address these challenges. With wider installation tolerances built into the lock, AV4 requires up to 70% lower force to operate than competitor auto locks and auto-engaging locking solutions. George Smith, Technical Manager for Winkhaus UK, explains how AV4 is tested, the results, and the
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