This allows {TAIL ~ more flexibility} in installation of the heat exchanger 10, with the direction of flow through {HEAD ~ the shell} 12 perhaps being determined by local siting conditions 
This allows { TAIL ~ more flexibility } in installation of the heat exchanger 10 , with the direction of flow through { HEAD ~ the shell } 12 perhaps being determined by local siting conditions
OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH