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 rotary turbine bypass valve comprises a valve chamber positioned at a junction of an inlet port, an outlet port and a bypass port, the inlet port configured for fluid communication with a flow of exhaust gas from an engine, the outlet port configured for fluid communication with an inlet of a turbine, and the bypass port configured for fluid communication with an exhaust aftertreatment device; and a valve rotor supported for rotation, about a valve axis, within the valve chamber. The valve rotor is rotatable about the valve axis between a first position in which the valve rotor permits gas flow through the bypass port and a second position in which the valve rotor blocks gas flow through the bypass port. The valve rotor is eccentric such that it includes a seal portion which is a portion of the valve rotor within the valve chamber which is furthest radially spaced from the valve axis; and as the valve rotor moves from the first position to the second position the seal portion moves towards the bypass port such that the radial separation between the valve rotor and the bypass port decreases to a minimum when the valve rotor is in the second position in which the seal portion is adjacent the bypass port.

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 high pressure valve includes a valve body having a surface defining a corresponding portion of a conduit and a pocket. A removable insert is removably inserted into the pocket of the valve body and has surface defining a corresponding portion of the conduit. A seal insert is spaced from the valve body by the removable insert and has an interface with the removable insert. A moving member interfaces with the seal insert for selectively closing the conduit, the interface between the seal insert and the removable insert allows play between the seal insert and the removable insert in response to movement of the moving member.

Aspects of the disclosure provide for a method and apparatus for installing and removing a plug retainer that may be used in a fluid end hydraulic system.

An angle valve structure includes an angle valve body. The angle valve body is provided with a water inlet channel, a water outlet channel and an accommodation cavity. The accommodation cavity is rotationally provided with a valve core. One end of the valve core exposed outside the accommodation cavity is fixedly connected with a knob. The valve core is provided with a sealing block for sealing the water outlet channel when sealing. The valve core includes a main body part and an elastic arm whose one end is connected with the main body part. One side of the main body part is provided with a mounting slot for placing the sealing block, one side of the elastic arm is provided with an extrusion portion, and the other side of the elastic arm is provided with a contact portion against the sealing block after assembly.

A valve sealing device for a tilting-armature valve, including: a sealing body having a first surface configured to close in a fluid-tight fashion a valve seat and/or an opening in a valve; and a retaining body which is arranged on a surface of the sealing body which is opposite the first surface, and is configured to secure the valve sealing device in and/or on a cutout in a valve, in particular in a cutout in a tilting armature of a tilting-armature valve, in particular in which the sealing body and/or the retaining body is essentially cylindrical in shape. A related method to make the valve sealing device and a tilting-armature valve that includes the valve sealing device are also described.

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.