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