What does "LV" stand for


The Schlage Vandlgard option available on select L-Series (LV9000) and ND-Series is ideal for areas subject to abuse or anywhere vandalism is likely to be present, such as schools, universitie...
Vandlgard is specified by "LV" for mortise locks.Vandlgard is specified by ND9x functions for ND cylindrical locks.
The LV9000 levers will rotate as normal when locked.  Once the lever is rotated to about 45 degrees the lever hits a stop.  At that point if the lever is forcefully rotated past the stop the LV spi...