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US 2022/0074502 A1Published application
Pressure-balanced gate valve
AssigneeTech Energy Products, L.L.C.
InventorTodd Roberts
Life of this patent
Estimating the term…
Abstract
A gate valve and method according to which a gate body extends within a valve cavity, a fluid bore extends through the gate body, and a passage extends from the fluid bore, through the gate body, and to the valve cavity. The valve cavity is pressurized with a lubricant to prevent, or at least resist, solid particles (e.g., sand, fines, debris, etc.) from entering the valve cavity. The valve cavity and the fluid bore are pressure balanced. In some embodiments, a flow valve, such as a check valve or one-way valve, is positioned within the passage.
Claims24
An apparatus, comprising:
- a gate, comprising:
- a gate body;
- a first fluid bore extending through the gate body;
- and
- a passage extending through the gate body from the first fluid bore;
- wherein:
- (i) the passage comprises a first segment extending into the gate body from the first fluid bore, and a second segment extending angularly from the first segment and through the gate body;
- and/or
- (ii) the apparatus further comprises a flow valve positioned within the passage.
6 more elements
A method, comprising:
- providing a valve body, the valve body defining a valve cavity within which a gate body extends, wherein a fluid bore extends through the gate body and a passage extends from the fluid bore, through the gate body, and to the valve cavity;
- preventing, or at least resisting, solid particles from entering the valve cavity, comprising pressurizing, with a lubricant, the valve cavity within which the gate body extends;
- and
- balancing respective pressures in the valve cavity and the fluid bore.
1 more element
Dependencies are inferred from the claim text.