By ensuring valves and actuators are only operated by authorized individuals, the new Anti-Tamper Lock (ATL) from Smith Flow Control, of Erlanger, Ky., secures companies’ assets by reducing the risk of human error or deliberate tampering. The way the ATL works is very simple: the standard condition of the device in service is locked (key-free) with the handwheel free-rotating. The standard unit is available in two sizes to suit all lever- and hand-wheel-operated valves.