Valve Seat Apparatus Having Positive Retention for Use with Fluid Control Devices
AssigneeEmerson Process Management Regulator Technologies, Inc.
InventorsTony Alan Durant, Samuel Harold Larsen, Kenneth Roger Schimnowski
Life of this patent
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Abstract
Valve seat apparatus having positive retention for use with fluid control devices are described herein. An example valve seat apparatus includes a metallic ring and an elastomeric ring coupled to the metallic ring and having a sealing surface to sealingly engage a flow control member of the fluid control device. At least a portion of an outer surface of the elastomeric ring includes an annular lip to sealingly engage an annular recess of a body of the fluid control device.
Claims19
A valve seat apparatus having a positive retention for use with a fluid control device, comprising:
- a metallic ring;
- and
- an elastomeric ring coupled to the metallic ring and having a sealing surface to sealingly engage a flow control member of the fluid control device, wherein at least a portion of an outer surface of the elastomeric ring includes an annular lip to sealingly engage an annular recess of a body of the fluid control device.
A valve seat apparatus having a positive retention for use with a fluid regulator, comprising:
- a substantially rigid support member coupled to a substantially resilient sealing member, wherein an inner surface of the sealing member is coupled to the outer surface of the support member, and wherein at least a portion of an outer surface of the sealing member has a first outer diameter and a second outer diameter larger than the first outer diameter to form at least one protruding member to retain the valve seat apparatus in a body of the fluid regulator.
A fluid regulator, comprising:
- a body having a shoulder formed by an annular cavity in the body between an inlet and an outlet;
- and
- a valve seat disposed within the body, wherein the valve seat comprises:
- a first ring-shaped member;
- and
- a second ring-shaped member coupled to the first ring-shaped member to provide a sealing surface to sealingly engage a movable valve plug of the regulator, wherein the second ring-shaped member includes an outer lip portion frictionally engaged in the annular cavity so that the lip portion engages the shoulder of the body to retain the valve seat in the body.
Dependencies are inferred from the claim text.