BACK PRESSURE VALVE

摘要

A system in some embodiments includes a back pressure valve configured to mount in a mineral extraction system. The back pressure valve comprises a cylindrical body comprising a venting port coaxial with a longitudinal axis of the cylindrical body and a plunger disposed in the venting port, wherein the plunger comprises a stem that extends from the venting port into an adjacent cavity of the cylindrical body. In some embodiments, a method of operating a valve, includes biasing a plunger to an open position, biasing a valve locking mechanism to a locked position in relation to a bore of a mineral extraction system, and biasing a plunger to a closed position.

主权项

1. A system, comprising:
a first component of a mineral extraction system, wherein the first component comprises a first bore extending along an axis; a second component of the mineral extraction system, wherein the second component is configured to mount inside the first bore of the first component; and a locking interface between the first bore of the first component and an exterior of the second component, wherein the locking interface comprises:
a lock recess; anda lock structure, wherein the lock structure is configured to move in a radial direction relative to the axis between an unlocked position out of the lock recess and a locked position within the lock recess, and the locked position of the lock structure in the lock recess blocks axial movement of the second component in opposite first and second axial directions.