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