A valve for use in a fluid end. The valve has a solid body with a sealing surface. The valve may move into a position wherein the valve when contacts a valve seat. When in contact, the sealing surfaces prevent flow of fluid through the valve. The sealing surface has three regions. The outer region has an elastomeric seal insert disposed on the surface. The inner region has a shock absorbing insert disposed on the surface. Intermediate these inserts is a metallic surface for metal-to-metal sealing with the valve seat.

A fluid end is formed from a first body attached to a separate second body. Each body includes an external surface. When the bodies are attached, their respective external surfaces are in flush engagement. A plurality of bores are formed in the second body that are alignable with a plurality of corresponding bores formed in the first body. The fluid end may be used with seals disposed within recesses within each bore to seal against corresponding sealing surfaces. Further, retaining closures may be bolted to the fluid end bodies, such that the closures have a threadless connection to the fluid end bodies. Various combinations of such components may be utilized.

Cryogenic solenoid valves are disclosed. A solenoid valve assembly includes a valve body that includes a valve seat. The solenoid valve assembly includes a cartridge mounted to the valve body, a plunger slidably received by the cartridge, and a seat disc holder slidably received by the cartridge. The solenoid valve assembly includes a retainer attached to the seat disc holder such that the retainer and the seat disc holder form a plunger head receiving cavity that houses a head of the plunger. The solenoid valve assembly includes a seat disc attached to the seat disc holder. The solenoid valve assembly includes an electromagnetic coil energizable to cause the solenoid valve assembly to move from a closed configuration in which the seat disc sealingly engages the valve seat and an open configuration in which the seat disc is disengaged from the valve seat.

The present disclosure relates to a hydraulic component with a valve unit for a hydraulic system, and a hydraulic system having such a hydraulic component. The valve unit of the hydraulic component has a valve block and a valve piston. The valve piston is moveably along a first bore supported in the valve block. Further, the valve unit is admittable with pressurized hydraulic fluid and is configured such that the valve piston can be moved between a closed position and an open position. The hydraulic component according to the disclosure is particularly characterized in that the first bore is configured as a through-hole through the entire valve block and the hydraulic component has a collecting unit. The collecting unit at least partially surrounds the two end openings of the first bore and is configured collect and drain hydraulic fluid leaking out of the two end openings of the bore.

Equipment for fluid transfer includes a valve, a frame that defines a housing for the valve and an upstream passage for the fluid that leads into the housing and is fluidically connectable to a fluid source, the valve being able to move between a non-inserted position and an inserted position in which the valve is situated at least partially in the housing, a module that defines a downstream passage for the fluid that fluidically connectable to the reservoir, the module being able to move between an open position, allowing the insertion of the valve, and a closed position in which the module is fixed to the frame, and two seals that are respectively compressed substantially between the valve and the frame and between the valve and the module when the valve is in the inserted position and the module is in the closed position.

Example composite valve plugs and related methods are disclosed. Example apparatus disclosed herein include a valve plug tip, a valve plug body, and an additively deposited material. The valve plug tip includes a head portion and a tail portion extending from the head portion. The valve plug body includes a cavity extending from a first end of the valve plug body toward a second end of the valve plug body. The cavity matably receives the tail portion of the valve plug tip. The additively deposited material is bonded to the valve plug body to retain the tail portion of the valve plug tip in the valve plug body.

A self-heat-dissipation pressure-reducing valve includes: a heat-dissipation valve core, an upper valve deck, a guiding valve deck, a valve body, a heat-dissipation valve seat, an air guide hood, and a turbine-type heat dissipation device. The heat-dissipation valve core is formed by a valve core composed of a heat pipe, and valve core heat-dissipation fins. The heat-dissipation valve seat includes a valve seat pocket, a valve seat shell, heat pipes, and valve seat heat-dissipation fins. An outer circumferential surface of the valve seat pocket is wound with multiple heat pipes fixed to the valve seat heat-dissipation fins. The turbine-type heat dissipation device includes a fan shell provided at a medium inlet, and a turbine. The turbine is lashed by a medium to turn the fan shell, and wind is guided in one direction through the external air guide hood to implement heat dissipation.

An in-line valve, particularly suited for use with a domestic garden hose, comprises a valve body, preferably made of two press-fitted-pin mating parts. A shuttle moves linearly within the bore of the valve body when force is applied to tabs which project through openings in the valve body. The end of the shuttle sealingly engages and disengages with a plug that is centered within the bore. The plug comprises struts and fins, configured for good flow characteristics. The combination of cross section of the shuttle relative to the bore, and the fits and properties of O-ring seals, are critical for easy manual operation of the valve.

Overflow protection and monitoring devices capable of coupling to a drainage pan and may include: a drainage line; a base, the base including an input port; a dry section; and a wet section, the input port capable of coupling to the drainage pan; a base cover, the base cover removably coupled to the base, the base cover including a base cover output port capable of coupling to the drainage line; a fluid displacement mechanism located in the wet section, the fluid displacement mechanism including a fluid displacement mechanism output port; a fluid detection mechanism located in the wet section; and a base attachment, the base attachment coupled to the fluid displacement mechanism output port and the base cover output port, the base attachment including an air relief port and back-flow preventer; a control unit capable of energizing the fluid displacement mechanism upon receiving a signal from the fluid detection mechanism.

A valve manifold includes a manifold and a valve. The manifold has a recess, a first fluid port, and a second fluid port. The valve is disposed entirely within the recess and is fluidically interposed between the first fluid port and the second fluid port. The valve has a rotatable needle having an end that is configured to be displaced relative to a valve seat upon rotation.