Ejection Unit
The ejection unit is designed to take the filled cylinder from the carousel. The ejection unit typically receives a signal from the corresponding filling head (filling head is up)indicating that the cylinder is filled ad may be taken off the carousel. If the filling is not completed, "filling head down" tells the evacuation unit not to activate and the cylinder completes one more cycle on the carousel while being filled. On modern carousels these commands are electronic, but can also be mechanical by means of a dowel which operates a switch.
Read more about this topic: Filling Carousel
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