Patent ID: 8171958

Claim:
An adjustable valve, comprising: a valve body having a fluid inlet and a fluid outlet; a rotatable plug body positioned within said valve body, said plug body having at least one flow path defined therein; a rotatable choke cage positioned proximate said plug body, said choke cage comprising a plurality of openings to permit a flow of a fluid therethrough, said choke cage adapted to be used to regulate the flow of fluid from said fluid inlet of said valve body, through at least one of said plurality of openings in said choke cage, through the flow path in the plug body, and out said fluid outlet of said valve body; and an actuatable member positioned within a portion of the choke cage, said actuatable member adapted to cover or expose said plurality of openings in the choke cage to regulate a flow of fluid through the choke cage to the flow path in the plug body and out said fluid outlet of said valve body.