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 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 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 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.

Provided are a two-way valve for flow rate control and a temperature control device using the same, which can linearly control a flow rate of a fluid with good accuracy as compared to a switching valve in which a communication hole is simply formed in a valve element so as to open a flow passage through alignment with an outflow portion. The two-way valve for flow rate control, includes: a valve main body (6), which includes a valve seat (8) having a columnar space, and has a first valve port (9) formed in one end portion of the valve main body in an axial direction of the valve seat (8) so as to allow flow of a fluid, and a second valve port (11) that is formed in a peripheral wall of the valve seat (8) to allow flow of the fluid and has a rectangular cross section; a valve element (12), which is arranged in a freely rotatable manner in the valve seat (8) of the valve main body (6), and has a shape forming a part of a cylindrical shape having a predetermined central angle (α) so as to linearly change an opening area of the second valve port (11); and drive means (3) configured to rotate and drive the valve element (12).

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 water dispensing apparatus includes a main body having an inlet channel, an outlet channel and a throughpath provided therebetween, a pivot valve mounted pivotally through the throughpath, which includes a water sealing portion and a water passing portion opposite to each other, and a first sheltering member and a second sheltering member coupled respectively at two sides of the main body, and an actuation member extended operatively between the first sheltering member and the second sheltering member of the pivot valve.

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.