The valve locking device was invented by Charles Shuter, who after supplying valves, actuators and accessories to the coal mining industry noticed a serious problem of unsecured valves.

The device effectively locks valves (pneumatic, hydraulic, electric and manual) in a safe, closed position and prevents extremely dangerous liquids penetrating through them and potentially injuring workers during maintenance and repairs.

Being able to lock off valves to enable work on specific sections of pipe or equipment lessens the disruptions to operations, and helps to improve productivity.

Shuter spent over three years developing the product, which included extensive field testing in Queensland sugar mills and coal mines. Shuter’s company, Valve Safety Lockouts, has since patented the device, which is being used in Queensland mines and in the US – with the European patent in its final stages.

Shuter said the Valve Safety Lockouts mechanism allows the valve spindle to directly connect with the actuator and eliminates the intermediate couplings required in other locking systems.

This results in an extremely compact unit which eliminates both the backlash associated with multiple connections and the levering effect caused by the inclusion of additional components.

The Valve Safety Lockouts will feature again in the program's Best of Show Grand Final in November.