The cleaning elements are intercepted and directed by {HEAD ~ the slanted bar screen} to a tube cleaner return line for {TAIL ~ re injection} upstream of the heat exchanger 
The cleaning elements are intercepted and directed by { HEAD ~ the slanted bar screen } to a tube cleaner return line for { TAIL ~ re injection } upstream of the heat exchanger
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH