{HEAD ~ A side stream} of liquid single component refrigerant is removed from separator vessel 72 and expanded in {TAIL ~ valve} 80 
{ HEAD ~ A side stream } of liquid single component refrigerant is removed from separator vessel 72 and expanded in { TAIL ~ valve } 80
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH REL OTH OTH OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL OTH