The example internal valve further includes {TAIL ~ a removable actuation member} disposed within the body and responsive to a fluid pressure to cause the flow control member to move between {HEAD ~ the first and second positions} 
The example internal valve further includes { TAIL ~ a removable actuation member } disposed within the body and responsive to a fluid pressure to cause the flow control member to move between { HEAD ~ the first and second positions }
OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD