The system includes a three position actuator for moving a valve pin into a closed position in which {HEAD ~ neither skin nor core flow} is permitted, a middle position in which {TAIL ~ only skin flow} is permitted, and an open position in which skin and core flow is permitted 
The system includes a three position actuator for moving a valve pin into a closed position in which { HEAD ~ neither skin nor core flow } is permitted , a middle position in which { TAIL ~ only skin flow } is permitted , and an open position in which skin and core flow is permitted
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH