A closure element for a fluid end assembly that has two or more recessed grooves formed in its outer surface. The grooves are axially offset. A seal is placed in one and only one of the grooves. As wear occurs, the seal is relocated to one of the other grooves. Instead of a series of axially offset grooves in a single closure element, a kit may be formed from two or more otherwise identical closure elements, each with a single recessed groove at a different axial position. Another closure element has a series of ledge-like surfaces defining spaces within which a seal may be received. One outer surface surrounds one or more of the other surfaces. A seal is placed in one and only one of the spaces. As wear occurs, the seal is relocated to one of the other spaces.

Apparatus and method contemplating a high pressure fluid end assembly having a body defining a body bore and defining a recess in the body intersecting the body bore. A closure is joined to the body and forms a sealing surface. A seal is mounted to the body in the recess and configured to extend from the recess beyond the body bore to seal against the sealing surface formed by the closure.

The present disclosure includes a retaining ring for a valve plug assembly. The retaining ring includes a first ring portion having an inner surface with a central axis extending along a circumference of the first ring portion, and a rib disposed on the inner surface of the first ring portion and offset from the central axis. The retaining ring also includes a second ring portion having an inner surface with a central axis extending along a circumference of the second ring portion, and a rib disposed on the inner surface of the second ring portion and offset from the central axis. The second ring portion is coupled to the first ring portion such that each of the ribs disposed on the inner surfaces of the first and second ring portions are configured to mate with a groove of a valve plug.

A mix manifold (16) includes a plurality of valves to control the flow of material therethrough. First and second valves (36a, 36b) are linked for simultaneous actuation. The first and second valves each include valve members (56a, 56b) disposed within and rotatable relative to seal bodies (58a, 58b). The valve members seal against the seal bodies and the seal bodies seal against the manifold. A solvent valve (36c) also includes a valve member (56c) in a seal body (58c). The first and second valves are configured to open only when the solvent valve is closed. The solvent valve is configured to open only when the first and second valves are closed. The solvent valve can rotate between a plurality of positions to control the flow of solvent to flowpaths downstream of the first and second valves.

A multi-port rotary plug valve may be used in a fluid delivery system of a vehicle to control flow of coolant fluid between a radiator, an electric drive motor, a battery, vehicle electronics, and one or more bypass lines. The valve may include a valve body that has ports at two or more levels along a height dimension of the valve body and a plug assembly that is rotatably disposed in the valve body. In addition, the valve may include a single-piece, conical seal disposed between the valve body and the plug assembly that is free of seams or joints.

Apparatus and method contemplating a high pressure fluid end assembly having a body defining a body bore and defining a groove in the body intersecting the body bore. A closure is joined to the body and forms a sealing surface. A seal is mounted to the body in the groove and configured to extend from the groove beyond the body bore to seal against the sealing surface formed by the closure.

Apparatus and method contemplating a high pressure fluid end assembly having a body defining a body bore and defining a recess in the body intersecting the body bore. A closure is joined to the body and forms a sealing surface. A seal is mounted to the body in the recess and configured to extend from the recess beyond the body bore to seal against the sealing surface formed by the closure.

A fluid end assembly comprising a housing having multiple conduits formed therein. A tubular sleeve is installed within one of the conduits and is configured to house a plurality of packing seals. A seal is installed within a groove formed in the walls of the housing surrounding the tubular sleeve such that the seal engages an outer surface of the tubular sleeve.

A multi-port rotary plug valve may be used in a fluid delivery system of a vehicle to control flow of coolant fluid between a radiator, an electric drive motor, a battery, vehicle electronics, and one or more bypass lines. The valve may include a valve body that has ports at two or more levels along a height dimension of the valve body and a plug assembly that is rotatably disposed in the valve body. In addition, the valve may include a single-piece, conical seal disposed between the valve body and the plug assembly that is free of seams or joints.

An apparatus for sealing at least one hub bore of a multi-bore fluid hub associated with a wellhead assembly includes a plug body having a plug bore opening on an outer mating surface. A plug bore extends from a first end of the plug body to the plug bore opening. The plug body is selectively insertable into a hub housing of the multi-bore fluid hub. An insert is in engagement with the outer mating surface and is moveable relative to the plug body between an unengaged position, and an engaged position where the insert seals across one of the hub bores. A stem member is coupled to the plug body and is moveable to selectively rotate the plug body within the multi-bore fluid hub so that the plug bore opening aligns with one of the hub bores and the insert aligns with another of the hub bores.