Patent ID: 9297458
Filing Date: 2016-03-29
CPC Classification: E21B,F16K,Y10T

Claim Text:
1. A choke valve comprising: a body having an axial through hole and a radial entry port; a valve seat coaxially housed in the body axial through hole on a first side of the radial entry port; a pressure balanced valving member axially reciprocal within the body axial through hole between a first sealing position bearing against the valve seat and a second position spaced away from the seat; an actuator housing operably connected to the valving member; and a detachably connected reinforcement member detachably connected to the actuator housing and increasing an axial load that the actuator housing can take before failure of the actuator housing, wherein the reinforcement member is a reinforcement plate, the actuator housing has a height, and the plate is detachably connected to the actuator housing with a plurality of bolts which bolts span the height of the housing, wherein the actuator housing includes a bonnet threadably connected to the housing, and the bonnet includes a ring which is threadably connected to the bonnet, and the ring is located between the reinforcement plate and the housing, and wherein the plate includes first and second annular and concentric shoulders with the first shoulder having a larger radius of curvature compared to the second shoulder, and the ring rests in and remains in contact with the first shoulder, and the bonnet rests in but is longitudinally spaced apart from a second shoulder.