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