A method, {TAIL ~ device}, and system for controlling a flow of a fluid moving through {HEAD ~ a pipe} are presented 
A method , { TAIL ~ device } , and system for controlling a flow of a fluid moving through { HEAD ~ a pipe } are presented
OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH