Patent ID: 8051874

Claim:
A liner assembly adapted to line a valve body of a control valve, the assembly comprising: a sleeve having an inner surface defining a bore and adapted to be disposed within a portion of the valve body, the sleeve including an upstream end portion and a downstream end portion; a liner slidably and removably disposed within the bore of the sleeve, the liner having a valve seat portion adjacent an upstream end portion of the liner and a nozzle portion downstream of the valve seat portion, wherein the nozzle portion diverges from the upstream end portion of the liner toward a downstream end portion of the liner, and wherein the upstream end portion of the liner extends to the upstream end portion of the sleeve and the downstream end portion of the liner extends beyond the downstream end portion of the sleeve such that the downstream end portion of the liner is disposed outside of the sleeve, and wherein the sleeve further comprises an engagement surface extending inward of the inner surface of the sleeve in a radial direction of the sleeve, the engagement surface in engagement with the liner; and a retention ring removably secured to the sleeve and in engagement with an axial end portion of the liner, wherein the retention ring comprises a threaded portion in threaded engagement with an axial end portion of the sleeve, wherein when the retention ring is removed from the sleeve, the liner can be slidably removed from the sleeve.