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US 12,565,934 B2Granted
Eccentric process control valve
AssigneeSullivan Process Controls LLC
InventorsGifford Z. Decker, Grant T. Goodwin
Life of this patent
Estimating the term…
Abstract
A process control valve can include a valve body having a fluid inlet, a fluid outlet and a valve seat disposed fluidically between the fluid inlet and the fluid outlet; a valve stem having a longitudinal axis, a first end and a second end longitudinally opposite the first end; and a valve member disposed within the valve body and configured to selectively sealingly engage the valve seat for controlling fluid flow through the valve. The first end of the valve stem can be disposed at least partially within the valve body and can be operably coupled to the valve member for controlling a position of the valve member relative to the valve seat. The valve member can be configured to resist blowout of the valve stem.
Claims20
A valve, comprising:
- a valve body having a fluid inlet, a fluid outlet and a valve seat disposed fluidically between the fluid inlet and the fluid outlet;
- a bonnet having a bore, the bore having a bore opening in fluid communication with an interior of the valve body;
- a valve stem having a longitudinal axis, a first end and a second end longitudinally opposite the first end;
- and
- a valve member disposed within the valve body and configured to selectively sealingly engage the valve seat for controlling fluid flow through the valve;
- wherein the valve member comprises a retainer for coupling with the valve stem and a gate for sealingly engaging the valve seat;
- wherein the first end of the valve stem is disposed at least partially through the bore opening and is coupled to the retainer;
- wherein the retainer has a major dimension larger than a major dimension of the bore opening;
- wherein the retainer comprises a first collar having a thru hole therein;
- wherein the first end of the valve stem is disposed at least partially through the thru hole in the first collar;
- wherein the first collar has a top, a bottom, a side wall, and a downwardly facing shoulder disposed between the top and bottom of the first collar;
- a slot through the side wall of the first collar;
- wherein the first end of the valve stem has a first portion configured to pass through the slot and a second portion configured to abut the downwardly facing shoulder;
- wherein the second portion of the first end of the valve stem has a larger cross-sectional area than at least a portion of the thru hole;
- wherein at least a portion of the slot is narrower than the second portion of the first end of the valve stem;
- wherein the gate has a sealing surface configured to sealingly engage the valve seat when the valve is in a fully closed position;
- wherein the sealing surface and the slot face opposite directions;
- wherein the first end of the valve stem is disposed at least partially within the valve body and is operably coupled to the valve member for controlling a position of the valve member relative to the valve seat;
- and
- wherein the valve member is configured to resist blowout of the valve stem.
17 more elements
A valve, comprising:
- a valve body having a fluid inlet, a fluid outlet and a valve seat disposed fluidically between the fluid inlet and the fluid outlet;
- a valve stem having a longitudinal axis, a first end and a second end longitudinally opposite the first end;
- and
- a valve member disposed within the valve body and configured to selectively sealingly engage the valve seat for controlling fluid flow through the valve;
- wherein the valve member comprises a retainer for coupling with the first end of the valve stem and a gate for sealingly engaging the valve seat;
- wherein the retainer comprises a first collar having a thru hole therein;
- wherein the first end of the valve stem is disposed at least partially through the thru hole in the first collar;
- wherein the first collar has a top, a bottom, a side wall, and a downwardly facing shoulder disposed between the top and bottom of the first collar;
- a slot through the side wall of the first collar;
- wherein the first end of the valve stem has a first portion configured to pass through the slot and a second portion configured to abut the downwardly facing shoulder;
- wherein the second portion of the first end of the valve stem has a larger cross-sectional area than at least a portion of the thru hole;
- wherein the gate has a sealing surface configured to sealingly engage the valve seat when the valve is in a fully closed position;
- wherein the sealing surface and the slot face opposite directions;
- and
- wherein the first portion of the valve stem engages the sidewall of the first collar opposite the slot.
12 more elements
A valve, comprising:
- a valve body having a fluid inlet, a fluid outlet and a valve seat disposed fluidically between the fluid inlet and the fluid outlet;
- a valve stem having a longitudinal axis, a first end and a second end longitudinally opposite the first end;
- and
- a valve member disposed within the valve body and configured to selectively sealingly engage the valve seat for controlling fluid flow through the valve;
- wherein the valve member comprises a first collar having a thru hole therein and a gate for sealingly engaging the valve seat in a fully closed position;
- wherein the first collar has a top, a bottom, a side wall, and a downwardly facing shoulder disposed between the top and bottom of the first collar;
- a slot through the side wall of the first collar;
- wherein the first end of the valve stem has a first portion configured to pass through the slot and a second portion configured to abut the downwardly facing shoulder;
- wherein the first end of the valve stem engages the side wall of the first collar opposite the slot;
- and
- wherein at least a portion of the slot is narrower than the second portion of the first end of the valve stem.
8 more elements
Dependencies are inferred from the claim text.