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US 10,378,659 B2Granted
Gate valve protector sleeve
AssigneeFMC Technologies, Inc.
InventorsGregory J. Scott, Sahil Saini, Brian Swagerty
Life of this patent
Estimating the term…
Abstract
In one aspect, this disclosure relates to a protector sleeve for a frac gate valve. The disclosed protector sleeve prevents frac sand and other particulates from becoming trapped between the seat and the seat pockets. In another aspect, this disclosure relates to a gate valve including the protector sleeve described above. The gate valve may include two protector sleeves, one disposed proximate the contact surfaces of each of the two seats and the two seat pockets.
Claims18
A gate valve comprising:
- one or more seats;
- a valve body comprising a radial face of a seat pocket adjacent to and sealingly engaged with each seat;
- and
- one or more protector sleeves overlying an interface between a distal face of the seat and the radial face of the seat pocket, extending at least some distance upstream and downstream of the interface,
- wherein a gap is formed in the interface between the seat and the valve body, wherein the protector sleeve protrudes outwardly to at least partially fill the gap to align the protector sleeve.
2 more elements
A gate valve comprising:
- a valve body surrounding a flow bore and a body cavity, wherein a gate is configured to move between an open position within the body cavity and a closed position within the flow bore, the valve body comprising one or more seat pockets with one or more radial faces;
- one or more seats, each seat having at least one distal face adjacent to the radial face of the seat pocket, forming an interface;
- and
- one or more protector sleeves overlying the interface between the seat and the valve body,
- wherein an outer diameter of each of the one or more protector sleeves is equal at a first end of the protector sleeve and a second end of the protector sleeve, and
- wherein a gap is formed in the interface between the seat and the valve body, wherein the protector sleeve protrudes outwardly to at least partially fill the gap to align the protector sleeve.
3 more elements
Dependencies are inferred from the claim text.