{HEAD ~ The nozzle} is removable for maintenance by detaching {TAIL ~ the flange member} and withdrawing the nozzle through the opening 
is removable by detaching
{ HEAD ~ The nozzle } is removable for maintenance by detaching { TAIL ~ the flange member } and withdrawing the nozzle through the opening
HEAD HEAD HEAD HEAD HEAD HEAD REL REL OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH