Valve cage
AssigneeFisher Controls International LLC
InventorPaul T. Alman
Life of this patent
Estimating the term…
Abstract
A flow control valve includes a valve body having an inlet, an outlet, and a flow path connecting the inlet and the outlet. A trim assembly is disposed in the flow path and includes a valve seat and a cage. The cage includes a body and a central cavity defined by the body. A control member is movable in the central cavity of the cage between an open position, in which the control member is spaced away from the valve seat, and a closed position, in which the control member engages the valve seat. The body has a non-circular longitudinal cross-section.
Claims20
A flow control valve comprising:
- a valve body having an inlet, an outlet, and a flow path connecting the inlet and the outlet;
- a trim assembly disposed in the flow path and including a valve seat and a cage, the cage including a body and a central cavity defined by the body of the cage;
- a control member movable in the central cavity of the cage between an open position, in which the control member is spaced away from the valve seat, and a closed position, in which the control member engages the valve seat;
- wherein the body of the cage has a non-circular longitudinal cross-section.
A cage assembly comprising:
- a control member;
- and
- a cage having a central cavity and a body defining the central cavity, the body having a non-circular longitudinal cross-section;
- wherein the central cavity of the cage slidably receives the control member.
A cage for a fluid control device, the cage comprising:
- a body having an interior wall and an exterior wall;
- a central cavity defined by the interior wall of the body;
- and
- a plurality of flow paths connecting the interior wall and the exterior wall, the plurality of flow paths tangentially disposed relative to the central cavity;
- wherein the body has a non-circular longitudinal cross-section.
Dependencies are inferred from the claim text.