{HEAD ~ Flow} is induced throughout the shell 12 and associated system by {TAIL ~ the circulating pump} 72, which is electrically operated 
{ HEAD ~ Flow } is induced throughout the shell 12 and associated system by { TAIL ~ the circulating pump } 72 , which is electrically operated
HEAD HEAD HEAD HEAD HEAD REL REL OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH