CHOKE VALVE WITH SHORT BONNET

摘要

The disclosure provides a choke valve with a body having a flow path therethrough; a sealing member coupled to the choke body and having ports through which fluid can flow; a control sleeve aligned with the sealing member along a longitudinal axis and configured to cover the ports to restrict flow in the flow path; a stem coupled to the control sleeve and configured to move the control sleeve along the longitudinal axis to cover the ports; a drive bushing rotationally coupled to the stem; an actuator coupled to the drive bushing and configured to rotate the drive bushing; a bonnet coupled to the choke body and having a bore that longitudinally engages the control sleeve; and an anti-rotation surface formed in each of the bonnet and the control sleeve to resist rotation of the control sleeve and the stem when the drive bushing is rotated around the stem.