Abstract: The disclosure relates to a spring for a rotating valve, having a spring body, wherein the spring body is coiled; an innermost section of the spring body, wherein the innermost section has an inner protuberance; an outermost section of the spring body, wherein the outermost section has an outer protuberance; wherein the spring is constructed of a conductive material and configured to remove electrostatic discharge from the rotating valve.

Abstract: The present invention comprises a valve assembly with an unbalanced seal between sealing components of the valve assembly. For a gate valve assembly, an upstream seat may have a different outer diameter than a downstream seat, thereby creating an unbalanced seal with the gate. By increasing the sealing surface of the downstream gate/seat interface and by decreasing the sealing surface of the upstream gate/seat interface, the gate/seat interface may seal at lower pressures. A bidirectional seal is also disclosed that may prevent grease or sand from entering a cavity of the seat/pocket insert interface and assists with controlling the pressures and torque on the valve assembly.

Abstract: A liquid cooling system includes first and second coolant tubes and a coupler to couple the first coolant tube to the second coolant tube. The first coolant tube receives coolant liquid from a first element of the liquid cooling system. The second coolant tube provides the coolant liquid to a second element of the liquid cooling system. The coupler is configured to receive an electrical signal to constrict a flow of the coolant liquid.

Abstract: A novel valve device and related method of using that can provide for real-time pressure control adjustments and accurate meter reading when installed in a waterline. A two-stage pressure control system can comprise a dual-spring mechanism engineered for precise and adaptive water flow regulation. Water can enter the valve through the one or more inflow ports at an inlet end, travel through the body, and exit through the one or more outflow ports at an outlet end or through side windows in the valve body for certain embodiments. As a result, the dual-spring mechanism can generate backpressure. When water mixed with air flows through the waterline, the valve can create backpressure upstream causing the air at or near the meter to compress for a more accurate meter reading.

Abstract: A valve for controlling fluid flows, including a valve housing in which a control bore extends along a bore axis, in which a first valve member is moveably accommodated along the bore axis between a first open position and a first closed position for a first fluid channel and in which a second valve member is moveably accommodated along the bore axis between a second open position and a second closed position for a second fluid channel and further including a first drive assigned to the first valve member and a second drive assigned to the second valve member, in which a helical compression spring extends along the bore axis from the first valve member to the second valve member and has a central spring section with a central coil pitch which is at least virtually identical to a wire diameter of the compression spring.

Abstract: Some fluid couplings, as described in this document, have an actuatable valve. In some examples, the actuatable valves provide an unobstructed flow path when switched to the “open” position and a closed flow path when switched to the “closed” position.

Abstract: Valve module system for supplying compressed air to a compressed air consumer, in which valve modules can be provided with differently configured channel plates in order to enter into fluid communication with fluid channels of a carrier plate, with several connecting channels are formed, which are designed to connect a first valve connection and a second valve connection of a valve assembly to a channel opening of a fluid channel.

Abstract: A hydraulic control assembly includes means for holding pressure in a cylinder to inhibit boom or arm drop of a machine in the event that a hose between the cylinder and a main control valve (MCV) ruptures. The pressure holding means of the hydraulic control assembly include a hydraulic valve and a parts-in-body check assembly both configured for insertion into a valve cavity defined by a valve body. The hydraulic valve comprises a proportional piloted valve that controls pressure.

Abstract: Systems, apparatus, articles of manufacture, and methods for rotary bearing maintenance are disclosed. An example apparatus includes a valve body defining a fluid passageway; a flow control member in the fluid passageway; a drive shaft coupled to the flow control member, the drive shaft extending through a shaft bore defined in the valve body; and a bearing around at least a portion of the drive shaft. The bearing includes: a first layer including a first material having a first coefficient of friction with the drive shaft when the first material is in contact with the drive shaft; and a second layer including a second material having a second coefficient of friction with the drive shaft when the second material is in contact with the drive shaft, the second coefficient of friction greater than the first coefficient of friction.

Abstract: A transfer valve includes a housing. A spool is in the housing and includes a first control surface and a second control surface. A first cavity is formed by the housing and the first control surface. A second cavity is formed by the housing and the second control surface. A first control port connects to the first cavity. A second control port connects to the second cavity. A first centering port is axially between the first control port and the second control port. A second centering port is axially between the first centering port and the second control port. The spool closes the first centering port and the second centering port when in a centered position. The first centering port is connected to the first cavity or the second centering port is connected to the second cavity when the spool is not in the centered position.

Abstract: A solenoid proportional relief valve includes: a joint in which the flow path is disposed; a coil wound to be energized; a needle supported movably along an axial direction of the coil; and a stator generating an attraction force on the needle by excitation of the coil, the needle being formed into a bottomed cylinder having a wall portion and a bottom portion and configured as a biasing member accommodation space accommodating a biasing member in a state where a resilient force is generated in an inner cylindrical portion, an inner surface of the bottom portion being configured as a force receiving section for the biasing member, and the valve body being formed integrally with an outer surface of the bottom portion.

Abstract: A valve component utilized in a fluid end assembly of a reciprocating pump may contain a multi-piece construction. The valve component may include a valve body portion, a leg assembly portion, a sealing element, and an insert at least partially captured between the valve body portion and the leg assembly portion. The insert may be constructed from a carbide or a ceramic material, and, when the valve component is fully assembled, may be compressed between the valve body portion and the leg assembly portion. The insert may at least partially form the strike surface of the valve component. The valve body portion and the leg assembly portion may both be constructed from a metallic material, and the valve body portion may define a sealing seat. The sealing element may be constructed from an elastomeric material that may be pre-formed and then compression molded onto the seat of the valve body.

Abstract: A servovalve includes a fluid transfer valve assembly comprising a primary fluid supply port and a control port, a moveable valve spool arranged to regulate flow of fluid through a first fluid pathway from the primary fluid supply port to the control port, and a jet pipe assembly configured to axially move the spool relative to the fluid transfer valve assembly in response to a control signal to regulate the fluid flow along the first fluid pathway. The jet pipe assembly comprises a steerable nozzle from which fluid is directed to the ends of the spool in an amount determined by the control signal. The spool comprises an opening and an interior passage fluidly coupling the opening to the jet pipe assembly via a second fluid pathway. The first fluid pathway is fluidly isolated from the second fluid pathway within the spool.

Abstract: A hermetic type compressor includes: a compressor main-body container that has a vertically cylindrical shape, and that has a discharge pipe and a suction pipe for a refrigerant; an accumulator container that is connected to the suction pipe; a compression section that is disposed in the compressor main-body container, that compresses the refrigerant sucked from the accumulator container via the suction pipe, and that discharges the compressed refrigerant from the discharge pipe; and a motor that is disposed inside the compressor main-body container, and that drives the compression section. In the hermetic type compressor, the accumulator container includes a cup shape accumulator shell that has the opening side thereof bonded to the compressor main-body container.

Abstract: Disclosed is a switching valve having a small contact resistance when a valve body moves along a seating surface of a housing. In a switching valve which includes a valve body, coming into contact with a seating surface of a housing having a plurality of ports and selectively communicating at least two ports of the plurality of ports, and applies a fluid pressure to a back surface of the valve body, the switching valve includes a biasing member configured for biasing the valve body in a direction in which the valve body is moved away from the seating surface of the housing.

Abstract: A valve device includes a first member having a recess section where a first opening of a first flow channel opens; a second member having a protruding section having an end part formed with a second opening of a second flow channel, the protruding section being inserted into the recess section such that the first opening is opposed to the second opening; a filter having a thickness in a predetermined direction, located between the first opening and the second opening; and a retainer having a body part retaining the filter inside, and at least two attachment parts formed on one side of a predetermined direction of the body part and attached to the protruding section.

Abstract: A hydraulic valve configured to connect a first pipe extending according to a first axis and a second pipe extending according to a second axis, the hydraulic valve comprising a body having two first ports that are aligned and configured to connect two fractions of the first pipe and two second ports that are aligned and configured to connect two fractions of the second pipe; a rotating shutter mounted in the body and configured to rotate according to an actuating axis that is transverse to the first axis and the second axis when the two first ports are connected to the first pipe and the two second ports are connected to the second pipe, the rotating shutter being provided with a first straight channel and a second straight channel, the first straight channel connecting the two first ports and the second straight channel connecting the two second ports in a closed angular position of the rotating shutter; the hydraulic valve further having a passage channel distinct from the first straight channel and the se

Abstract: A disclosed gas supply system includes a gas supply line and a gas recovery line. The gas supply line supplies a heat transfer gas to a gap between a substrate support and a back surface of a substrate. The gas supply line includes first to third portions and a pressure controller. The second portion extends downstream of the first portion. The pressure controller regulates a pressure of the heat transfer gas and is connected between the first portion and the second portion. The third portion connects the second portion and the gap. The gas recovery line is connected to the first and second portions. The gas recovery line includes a pump connected between the first and the second portions. The gas recovery line shares the third portion with the gas supply line. The gas recovery line returns the heat transfer gas from the second portion to the first portion.

Abstract: An apparatus for controlling flow through a flow body comprising an intake opening and an output opening in the flow body, a cavity with a first cross-sectional shape and an opening, a diaphragm or a bellows, wherein the diaphragm or the bellows seals the opening of the cavity and the diaphragm or the bellows includes a hole, a plunger with the cross-sectional shape corresponding to the cavity, wherein the plunger is longitudinally movable within the cavity and a plunger portion forms an orifice with cavity portion, and a rod coupled with the plunger for facilitating the longitudinal movement of the plunger, wherein the rod comprises a rod cross section that corresponds to the hole in the diaphragm or the bellows.

Abstract: Pressure regulators with self-aligning valve disk assemblies are disclosed. An example pressure regulator disclosed herein includes a valve body defining a fluid passageway between an inlet and an outlet, a seat positioned in the fluid passageway, a stem movable relative to the seat, and a disk assembly coupled to the stem, the disk assembly including a disk holder defining a cavity, a retainer positioned in the cavity, the retainer including a first curved surface, and a disk positioned in the cavity and extending circumferentially around the first curved surface, a second curved surface of the disk complementary to the first curved surface such that the disk is pivotable and rotatable about the first curved surface to enable the disk to sealably engage the seat.