STRAIGHT-BORE BACK PRESSURE VALVE

摘要

A system in some embodiments includes a back pressure valve. The back pressure valve includes a body, a plunger (50) disposed internal to the body, and a friction member (44) disposed about the exterior of the body. The friction member is configured to expand radially to contact an internal surface of a bore. In some embodiments, a method includes disposing a back pressure valve into a straight bore and expanding a friction member of the back pressure valve radially into contact with an internal surface of the straight bore.