Auto filling selectors provide and co-ordinate the flow of air in the filling station automatically between the compressor, storage and the filling panel. The user simply connects the empty cylinders to the filing panel and opens the cylinder valves.

The compressor storage and auto filling selector can be located remotely from the filling panel with only one HP line between the auto filling selector and the filling panel.

In additional to simplified filling operations, the auto filling selector also saves energy and time making the filling operation more economical. Once the compressor is switched on, it will not switch off until all the cylinders that are connected on the filling panel ore filled and the storage bank is refilled to maximum working pressure. The compressor runs continuously during the entire filling operation and therefore more efficiently.