The AutoFill™ fill-up tool and “C” series MudSaver Valve has been specifically designed to be used with the National Oil Well Casing Running Tool (NOV/CRT). The fill-up tool can be substituted for the current circulator assembly and valve and uses standard parts used on the Patented DrawWorks, L.P. AutoFill system. All companies now using the DrawWorks AutoFill can use inventory parts for this new system.

The Shorty AutoValve is a ball valve and therefore fully opened when in the open position and fully closed when in the closed position. There are no restrictions in the valve that will cause erosion due to high flow rates.