Abstract: Systems, assemblies, apparatuses, and methods herein may provide an enhanced fluid seal between two components. A seal may include an annular seal body having a groove face, a sealing face opposite the groove face, a first lateral face, and a second lateral face opposite the first lateral face. The groove face may have an at least partially convex groove edge, and the sealing face may have an at least partially concave sealing edge and a protrusion. The first and second lateral faces may be oblique with respect to one another, and the groove face, the sealing face, the first lateral face, and/or the second lateral face may cause the seal to deform in a groove of a first one of the two components when a second one of the two components presses against the sealing face, thereby to enhance the fluid seal between the two components.

Abstract: Studs, assemblies, and related methods may provide enhanced reliability of connections between components in high-power pumps. A stud may include a stud body having an anchor end positioned to be threadedly engaged with a fluid end block, and a fastener end positioned to be threadedly engaged with a fastener, thereby to secure the component and the fluid end block to one another. The stud body may include external anchor threads at the anchor end of the stud body having a buttress thread form, thereby to secure the anchor end of the stud body to the fluid end block. The stud body also may include external fastener threads at the fastener end of the stud body, and the external fastener threads may have a thread form different than the external anchor threads of the anchor end of the stud body.

Abstract: A fluid end includes a housing having a bore extending toward a cavity and a wear sleeve positioned within the bore. The fluid end also includes a plunger positioned within a plunger bore extending through the wear sleeve, the plunger reciprocating within the plunger bore. The fluid end further includes a wear sleeve retainer coupled to the housing and positioned to block axial movement of the wear sleeve, the wear sleeve retainer having external threads along a body that engage internal threads formed in the housing. The fluid end also includes an anti-rotation system, coupled to the housing, the anti-rotation system engaging the wear sleeve retainer to block rotation of the wear sleeve retainer in at least one direction. The fluid end further includes a packing nut coupled to the wear sleeve retainer.

Abstract: A fluid end includes a housing having a bore extending toward a cavity and a wear sleeve positioned within the bore. The fluid end also includes a plunger positioned within a plunger bore extending through the wear sleeve, the plunger reciprocating within the plunger bore. The fluid end further includes a wear sleeve retainer coupled to the housing and positioned to block axial movement of the wear sleeve, the wear sleeve retainer having external threads along a body that engage internal threads formed in the housing. The fluid end also includes an anti-rotation system, coupled to the housing, the anti-rotation system engaging the wear sleeve retainer to block rotation of the wear sleeve retainer in at least one direction. The fluid end further includes a packing nut coupled to the wear sleeve retainer.

Abstract: A fluid end includes a housing having a bore extending toward a cavity and a wear sleeve positioned within the bore. The fluid end also includes a plunger positioned within a plunger bore extending through the wear sleeve, the plunger reciprocating within the plunger bore. The fluid end further includes a wear sleeve retainer coupled to the housing and positioned to block axial movement of the wear sleeve, the wear sleeve retainer having external threads along a body that engage internal threads formed in the housing. The fluid end also includes an anti-rotation system, coupled to the housing, the anti-rotation system engaging the wear sleeve retainer to block rotation of the wear sleeve retainer in at least one direction. The fluid end further includes a packing nut coupled to the wear sleeve retainer.

Abstract: Systems, assemblies, apparatuses, and methods herein may provide a cover assembly for closing a port of a high-power pump. The cover assembly may include a cap and a retainer that may be connected to one another and separated from one another. The cap may include a cap body forming a radial wall, an axial wall, and a cap connector. The retainer may include a retainer body having a retainer connector at an end of the retainer. The cap connector and the retainer connecter may be positioned to connect the cap and the retainer to one another, thereby to provide an annular location for an annular seal between the radial wall and the end of the retainer.

Abstract: A fluid end includes a housing having a bore extending toward a cavity and a wear sleeve positioned within the bore. The fluid end also includes a plunger positioned within a plunger bore extending through the wear sleeve, the plunger reciprocating within the plunger bore. The fluid end further includes a wear sleeve retainer coupled to the housing and positioned to block axial movement of the wear sleeve, the wear sleeve retainer having external threads along a body that engage internal threads formed in the housing. The fluid end also includes an anti-rotation system, coupled to the housing, the anti-rotation system engaging the wear sleeve retainer to block rotation of the wear sleeve retainer in at least one direction. The fluid end further includes a packing nut coupled to the wear sleeve retainer.

Abstract: Systems, assemblies, apparatuses, and methods herein may provide an enhanced fluid seal between two components. A seal may include an annular seal body having a groove face, a sealing face opposite the groove face, a first lateral face, and a second lateral face opposite the first lateral face. The groove face may have an at least partially convex groove edge, and the sealing face may have an at least partially concave sealing edge and a protrusion. The first and second lateral faces may be oblique with respect to one another, and the groove face, the sealing face, the first lateral face, and/or the second lateral face may cause the seal to deform in a groove of a first one of the two components when a second one of the two components presses against the sealing face, thereby to enhance the fluid seal between the two components.

Abstract: A fluid end includes a housing having a bore extending toward a cavity and a wear sleeve positioned within the bore. The fluid end also includes a plunger positioned within a plunger bore extending through the wear sleeve, the plunger reciprocating within the plunger bore. The fluid end further includes a wear sleeve retainer coupled to the housing and positioned to block axial movement of the wear sleeve, the wear sleeve retainer having external threads along a body that engage internal threads formed in the housing. The fluid end also includes an anti-rotation system, coupled to the housing, the anti-rotation system engaging the wear sleeve retainer to block rotation of the wear sleeve retainer in at least one direction. The fluid end further includes a packing nut coupled to the wear sleeve retainer.

Abstract: Systems, assemblies, apparatuses, and methods herein may provide a relatively enhanced engagement between valve components, such as valve bodies and valve seals. A valve member may include a valve body having a valve head and a neck portion connected to the valve head and having a radial dimension less than a radial dimension of the valve head. The valve body may include a seal engaging surface at least partially defining one or more recesses. The valve member further may include a valve seal connected to the valve body around the neck portion and adjacent the seal engaging surface. The valve seal may include a body engaging surface positioned against the seal engaging surface, forming an engagement that may resist one or more of outward radial migration, axial displacement, or rotational displacement of the valve seal relative to the valve body during operation of a pump including the valve member.