In one example, an example internal valve includes a body having {HEAD ~ a valve seat} disposed between an inlet and {TAIL ~ an outlet} 
disposed between
In one example , an example internal valve includes a body having { HEAD ~ a valve seat } disposed between an inlet and { TAIL ~ an outlet }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL