The refrigerant separates into {HEAD ~ a vapor phase} and a liquid phase in {TAIL ~ this vessel} 84 
The refrigerant separates into { HEAD ~ a vapor phase } and a liquid phase in { TAIL ~ this vessel } 84
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH