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 valve for use in oil and gas production or similar applications includes a plug or other flow barrier disposed in a cavity of a hollow valve body with a metal-to-metal scaling surface that is not reliant on any rubberized or elastomeric material to effect a seal.

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.

This invention relates to a multi-outlet valve, and the valve includes a valve seat, a valve body, and an inlet connector. By the cooperation of the valve seat, the valve body, a fluid-tight anti-leakage effect of the valve core relative to the valve seat can be achieved. By the cooperation of the valve seat and the inlet connector, a twist of the inlet connector relative to a fluid pipe and adversely affecting the service life of the fluid pipe can be avoided during the process of connecting the fluid pipe so as to achieve good structural functionality and stability.

A valve for use in oil and gas production or similar applications may include a ball disposed in a cavity of a hollow valve body and a seat comprising a curved surface with a normal component and a normal surface with a surface area larger than a projected normal surface area of the normal component of the curved surface.

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 valve for use in oil and gas production or similar applications includes a plug or other flow barrier disposed in a cavity of a hollow valve body with a metal-to-metal sealing surface that is not reliant on any rubberized or elastomeric material to effect a seal.

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.

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 disclosure concerns a multi-outlet valve. The multi-outlet valve, wherein the multi-outlet having valve housing, a valve body, and an inlet connector. The valve housing body defines an inner cavity and a side locking groove; and has two or more valve housing outlets in communication with the inner cavity. The valve body has a valve body core defining a valve body chamber, one or more valve body outlets in communication with the valve body chamber, and a recess defined about each valve body outlet. There is a gasket located in each inner concave portion. The inlet connector defines a groove hole and an inlet connector conduit in communication with the valve body chamber, and comprising a valve body seat configured to engage the valve body. A fixing pin secures the valve housing to the inlet connector, over the valve body. Each valve body outlet is configured to be selectively aligned with each valve housing outlet.