Composite valve seat system and method
AssigneeVulcan Industrial Holdings, LLC
InventorJason David Smith
Life of this patent
Estimating the term…
Abstract
A valve assembly for a fracturing pump includes a valve seat having a bore extending therethrough, the valve seat including a strike face at a top region opposite a bottom region, at least a portion of the strike face formed by an insert positioned within a groove formed in the valve body. The valve assembly also includes a bore liner arranged within the bore, at least a portion of an axial length of the bore liner covering at least a portion of the ceramic to form a barrier between the insert and the bore. The valve assembly further includes a valve member positioned to reciprocate within the bore, the valve member moving between an open position and a closed position, wherein at least a portion of the valve member engages at least a portion of the strike face in the closed position.
Claims14
A valve assembly for a fracturing pump, comprising:
- a valve seat having a bore extending therethrough, the valve seat including a strike face at a top region opposite a bottom region, at least a portion of the strike face formed by an insert positioned within a groove formed in a valve body;
- a bore liner arranged within the bore to overlay at least a portion of the bottom region, at least a portion of an axial length of the bore liner covering at least a portion of the insert to form a barrier between the insert and the bore, the insert having a curved end positioned proximate the bore liner, the bore liner extending to cover at least the curved end;
- an overlapping bore liner extension, the overlapping bore liner extension extending into a slot formed in the insert, the overlapping bore liner extension substantially corresponding to a second tapered face of the insert;
- and
- a valve member positioned to reciprocate within the bore, the valve member moving between an open position and a closed position, wherein at least a portion of the valve member engages at least a portion of the strike face in the closed position.
A valve seat for use in a fracturing pump, comprising:
- a first body, including a first bore portion;
- a second body, including a second bore portion coupled to and aligned with the first bore portion, the second body comprising:
- a tapered portion having a downward slope from a second diameter to an axis;
- a groove formed in the tapered portion, the groove extending radially outward from the second bore portion;
- an insert, positioned within the groove, the insert having a sloped region substantially conforming to the downward slope of the tapered portion, the insert forming at least part of the second bore portion;
- and
- a bore liner overlapping at least a portion of the insert and extending through at least parts of both the first body and the second body, the bore liner having a smaller bore liner diameter than a bore diameter, the bore liner comprising:
- an extension arranged at an angle, the extension being positioned within a slot formed in the insert, the extension forming at least part of the tapered portion.
Dependencies are inferred from the claim text.