Patent ID: 8366070

Claim:
A valve comprising: a body including an upstream flow passage and a downstream flow passage in fluid communication with an interior cavity of the body; a throttling ball disposed within the interior cavity, the throttling ball rotatable within the interior cavity on an axis to adjust the valve from a closed position to an open position, the throttling ball including a fluid conduit extending through the throttling ball, the fluid conduit being alignable with the upstream flow passage and the downstream flow passage; a shoe member disposed in the cavity abutting an interior surface of the cavity and detachably secured to the body, the shoe including a fluid passage there through having an inlet on an upstream side being alignable with the flow conduit of the throttling ball and an outlet being alignable with the downstream flow passage of the body, the shoe having an interior surface comprising at least a partial hemisphere with an opening therein, the interior surface of the shoe disposed adjacent to and tracking an external surface of the throttling ball; a diffuser disposed through the throttling ball, the diffuser including a diffuser plate at an upstream end of the flow conduit, the diffuser plate including a plurality of apertures allowing fluid communication there through substantially orthogonal with the axis of rotation of the throttling ball; an internal trim disposed in the fluid conduit, the internal trim comprising a plurality of flow plates aligned substantially perpendicular to an axis of rotation of the throttling ball, each flow plate allowing fluid communication through a plurality of orifices disposed through the flow plate, the fluid communication through the orifices substantially orthogonal to the fluid communication through the plurality of apertures of the diffuser plate; and the internal trim further comprising at least one support plate disposed generally parallel to an axis of rotation of the throttling ball and between at least two flow plates, the support plate secured to the at least two flow plates, the support plate allowing fluid communication through a plurality of orifices disposed through the support plate.