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