Valve trim apparatus for use with valves
AssigneeFisher Controls International LLC
InventorsBrandon Wayne Bell, Leslie E. Fleming
Life of this patent
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Abstract
A valve trim apparatus for use with valves is described. An example valve trim apparatus includes a cage having an upper portion removably coupled to a lower portion. A closure member is disposed within the cage and has a first seating surface and a second seating surface. A seal assembly is fixed between the upper and lower portions of the cage. The first sealing surface of the closure member sealingly engages the seal assembly when the closure member is in a closed position to prevent leakage between the closure member and the cage.
Claims23
A valve trim apparatus for use with valves, comprising:
- a cage having an upper portion removably coupled to a lower portion;
- a closure member disposed within the cage, wherein the closure member has a first seating surface and a second seating surface;
- and
- a seal assembly fixed between the upper and lower portions of the cage, wherein the first seating surface of the closure member is to sealingly engage the seal assembly when the closure member is in a closed position to prevent leakage between the closure member and the cage.
A valve trim apparatus for use with a valve, comprising:
- means for characterizing a fluid flow through a valve having an upper portion removably coupled to a lower portion;
- means for controlling the fluid flow through the valve disposed within the means for characterizing, wherein a first portion of the means for controlling is sized to fit closely within the first portion of the means for characterizing and a second portion is sized to fit closely within the second portion of the means for characterizing, wherein the means for controlling moves between an open position to allow fluid flow through the valve and a closed position to prevent fluid flow through the valve;
- and
- means for sealing disposed between the upper portion and the lower portion of the means for characterizing, wherein at least a portion of the means for controlling engages the means for sealing to prevent leakage between the means for characterizing and the means for controlling when the means for controlling is in the closed position.
Dependencies are inferred from the claim text.