Abstract: A control valve includes a valve body and a valve gate. The valve gate is movably located inside the inner space. The control valve has a lower flow rate limit which is greater than zero. That is, the lower flow rate limit has no necessary to be zero, thus it is acceptable to have a cylindrical valve gate but not a spherical valve gate, and a diameter of the cylindrical valve gate is be smaller than a caliber of an opening of the valve body. Therefore, the valve gate can be directly installed into the valve body via the opening, which allows the valve body to be made of a single piece so as to simplify the processes of manufacturing and assembly.

Abstract: The invention relates to a device (12) for mixing/dosing liquid coating materials, in particular for use in a coating system (10) for spectacle lenses, said device having at least a first and a second storage container (14-24) for liquid starting materials, a conveying device (26) for sucking in and expelling liquids, a mixing container (28), and a liquid outlet (30) for mixed/dosed liquid coating materials. In between there is a multi-way valve (32), which can be switched into different valve positions and is constructed to produce one of the following connections (a, b, c, d) and in the process to disconnect the other connections: (a) connection between the first storage container and the conveying device, (b) connection between the second storage container and the conveying device, (c) connection between the conveying device and the mixing container, and (d) connection between the conveying device and the liquid outlet.

Abstract: A sample pre-compression valve for liquid chromatography applications is described. The valve enables a sample pre-compression while the solvent pump continues to conduct solvent to the chromatography column. Furthermore, the sample pre-compression valve includes an INJECT position, a LOAD position and a PUMP PURGE position, in which all connecting grooves of the valve are flushed with liquid. A use of the sample pre-compression valve is described as part of a sampler for liquid chromatography applications.

Abstract: Systems and methods for automatic preparation of samples through evaporative sampling for subsequent analysis are described. A system embodiment includes, but is not limited to, a sample source configured to supply a sample; an evaporation container fluidically coupled with the sample source to receive the sample; a temperature control element operably coupled with the evaporation container to vaporize a liquid portion of the sample within the evaporation container, the evaporation container fluidically coupled with a gas input to receive a gas to transport vapor from the evaporation container; and a cooling system configured to receive the vapor from the evaporation container and to condense the vapor for collection.

Abstract: A hydraulic distributor block for fluid guidance, having at least two port surfaces which each have at least one port opening. The port openings of the port surfaces are connected by a flow duct, with the flow duct having at least one bend which is continuously curved and the port surfaces being spatially separated from one another.

Abstract: Disclosed is a HPLC system including a first dimension column, a second dimension column, a high pressure switching valve installed along the mobile phase flow path with the usual detector. At a predetermined time after injection of a sample into the mobile phase stream, the valve is actuated so that late eluted components, while still in the first dimension column, are back-flushed to waste by the flow of mobile phase while the analytes get separated in the second dimension column. Mixed-mode cation exchange and anion exchange columns are particularly suited for this application.

Abstract: A method for preparing a sample by utilizing a shearing force in the presence of a size stabilizer to break apart the sample to obtain nucleic acid molecules in a usable size range. Once nucleic acid molecules are obtained, magnetic nanoparticles are used to concentrate and clean the nucleic acid molecules for further testing.

Abstract: Dissolution tester assembly that tests pharmaceutical tablets includes a frame that operatively supports a vessel having an interior into which a tablet is placed, a camera assembly supported by the frame and including a shaft having a hollow portion and an end that extends into the vessel interior, and an imaging system for imaging the tablet during the dissolution process to enable display of the images on a monitor. The imaging system includes a first camera positioned in the hollow portion of the shaft and oriented to image downward toward a bottom of the vessel, and/or a second camera positioned on the frame at a location directly below the vessel and oriented to image upward toward the bottom of the vessel. An attachment, such as a paddle for stirring or a basket for retaining the tablet, may be positioned at the end of the shaft in the vessel.

Abstract: Systems and methods for automatic preconcentration of fluid samples using alternating dual holding loops are described. A system embodiment includes, but is not limited to, a first sample loop and a second sample loop alternately fluidically coupled with a sample source; a first valve to alternately introduce fluid from the sample source to the first sample loop and the second sample loop; a second valve to alternately receive fluid from the first sample loop and the second sample loop and to alternately provide access to the preconcentration column to fluid received from the first sample loop and the second sample loop; and a pump system configured to alternately introduce sample held in the first sample loop and sample held in the second sample loop to the preconcentration column via the first valve and the second valve.

Abstract: A portable water path switching device includes a valve body, a water diversion member, and a switching assembly. The valve body is provided with a valve cavity, a water inlet communicating with the valve cavity, and at least two water outlets. The water diversion member is arranged in the valve cavity and at least provided with first water diversion holes and second water diversion holes. The first water diversion holes communicate with the first water outlet, and the second water diversion holes communicate with the second water outlet. The switching assembly is movably connected to the valve body and includes seal balls. When the switching assembly is driven, the seal balls switchably block the first water diversion holes and the second water diversion holes, so that water flow of the water inlet switchably flows to the second water outlet and the first water outlet.

Abstract: A valve is provided for use with liquid chromatography where liquid is provided to the chromatographic analysis equipment at more than one pressure, including up to ultra-high pressures. High and higher pressure operation are provided by application of force by an internal spring while avoiding wear of components by permitting higher pressure operation by mechanical engagement of an internal element to cause the internal spring to increase the force applied to the rotor, without the addition of external additional loading in the high pressure operation.

Abstract: A significant reduction in extra-column band broadening can be achieved by decoupling the injection system from the main solvent flow line. In addition, by decoupling the injection system from the main solvent flow line, additional components (e.g., filters, valves, etc.) can be introduced into the chromatography system without increasing the negative band broadening effects. Systems and methods herein provide not only for such decoupling but also for filtering precipitates from the system. As a result, a larger volume of sample can be injected into the present systems without compromising separation yield. In addition, an increase the column loading per batch, an increase the overall yield of separations, and greater system efficiency (i.e., less time lost for cleaning and maintenance) can be realized.

Abstract: A ventilation sole for footwear, the sole including: a communicating vent-hole through which the inside and outside of footwear communicate with each other to allow air to flow; and a valve selectively opening and closing the communicating vent-hole, wherein the valve includes: a housing module configured to have opposite ends being open such that a channel is provided therein to communicate with the communicating vent-hole; an open-close module configured with a first closing surface and a first through-hole; and a rotation module configured with a second closing surface and a second through-hole, and rotating to move a position of the second through-hole. Accordingly, a wearer can easily open and close the valve by rotating the rotation module according to the intention of the wearer, whereby air inside and outside the footwear can be circulated selectively and optimal foot conditions can be improved.

Abstract: Controlled delivery of embolic beads into a subject's artery is achieved using a pump configured to draw fluid into a chamber and eject fluid from the chamber, one or more valves that control fluid-flow paths between three ports and the chamber of the pump, a valve actuator that places the one or more valves into various operating states, and a controller that controls the operation of the pump and the one or more valves in a controlled sequence. The various operating states interconnect one of the ports with a common port in fluid communication with the pump to achieve the controlled delivery of embolic beads.

Abstract: A mountable Multiple Port Distribution Manifold consisting of a selector knob through which a gas of liquid media may internally flow, between a hollow port at one end and a side port of the rotate-able Shaft within the Manifold. By rotating the Knob/Shaft, the side hole port of the Knob/Shaft assembly may selectively intersect with multiple ports within the Manifold. Said assembly also provides of an “off” position, where no Shaft/Manifold intersection allows port to port connection. The invention may be constructed of any suitable material, natural or synthetic, that is sufficiently strong to withstand the internal pressures of a gas or liquid media routed within.

Abstract: Systems and methods for maintaining operation of gas sampling equipment utilized in oil and gas operations, wherein an isolation valve is deployed along a gas extraction conduit in order to isolate a gas analysis system from pressurized fluid that may be injected into the extraction conduit from a fluid delivery system. A parameter of the flow stream, such as a particular gas content or the presence of a bump gas, may be monitored. A change in the parameter may be indicative that debris is inhibiting fluid flow into the extraction conduit. When such a condition is suspected, gas sampling is suspended and the valve between the gas analysis system and the intake of the extraction conduit is closed. With the valve closed in order to protect the gas analysis system, a fluid is injected into the extraction conduit from the fluid delivery system.

Abstract: The present disclosure relates to a selector device configured to allow a selection of a fluid in a mixing system. The overall configuration of the device being such that in an operative condition of selection of a specific fluid said one or more connection ports are translated in a sealed way on said face along said curvilinear trajectory through said manoeuvring means until an overlapping position of said one or more connection ports with respect to said outlet mouth of the inlet channel of the specific fluid, and said suction mouth of the suction channel, said outlet mouth and said suction mouth being positioned at said face.

Abstract: An engine exhaust control valve of a saddle-riding vehicle is provided with: a valve shaft disposed in an intersecting manner with a center line of a main pipe portion of an engine exhaust pipe; a valve plate mounted on the valve shaft and rotatably positioned within an inner peripheral surface of the main pipe portion; a valve rotational drive portion mounted on one shaft end of the valve shaft; a drive motor for driving the valve rotational drive portion; and a control unit for controlling the drive motor. Protruding portions with which outer peripheral edges of the valve plate are brought into contact at a rotational limit of the valve plate in a closing direction are formed on an inner peripheral surface of the main pipe portion. The above structure provides a high degree of sealing.

Abstract: A downhole tool for a wellbore and method of assembly. Components of the tool include a load member, one or slip members, one or more compression members, and a sealing element between the compression members mounted on a mandrel. The components are designed to prevent pre-set of the tool in the wellbore and facilitate removal of the tool from the wellbore.

Abstract: A mountable Multiple Port Distribution Manifold consisting of a selector knob through which a gas of liquid media may internally flow, between a hollow port at one end and a side port of the rotatable Shaft within the Manifold. By rotating the Knob/Shaft, the side hole port of the Knob/Shaft assembly may selectively intersect with multiple ports within the Manifold. Said assembly also provides of an “off” position, where no Shaft/Manifold intersection allows port to port connection. The invention may be constructed of any suitable material, natural or synthetic, that is sufficiently strong to withstand the internal pressures of a gas or liquid media routed within without leakage.

Abstract: A liquid sample introduction device including: a multiport valve having a port (a) in communication with a sampling loop, a port (f) in communication with a mobile phase supply passage, a port (e) in communication with a column, a port (d) in communication with a sample injection unit, a port (b) in communication with a measuring pump, and a port (c) in communication with a multi-position valve. The multi-position valve having a common port (g) in communication with the measuring pump, a port (i) in communication with the multiport valve, a port (j) in communication with a cleaning liquid supply passage, and a port (h) in communication with a washing container.

Abstract: A device for dispensing liquid from a container includes a dispensing tube to dispense the liquid through a dispensing valve. A gas tube feeds pressurized gas into the container. The upstream end of the gas tube connects to a source of pressurized gas. A three way valve is coupled to the downstream end of the gas tube. The three way valve includes a keg duct in communication with the interior of the container, a gas duct connected to the downstream end of the gas tube, and a vent duct. The three way valve can switch from a dispensing position in which the keg duct is in communication with the gas duct, and out of communication with the vent duct, to a venting position in which the keg duct is in fluid communication with the vent duct and out of fluid communication with the gas duct.

Abstract: Gas flow control valves comprising a valve housing including a cylindrical interior passage, and a housing opening extending from the interior passage through the housing. The gas flow control valve further comprises a cylindrical rotary valve element including a sidewall, and a rotary valve element opening extending through the sidewall. The valve element is rotatably received within the interior passage of the valve housing, such that the housing opening may be selectively aligned with the rotary valve element opening, and an area of overlap of the housing opening and the valve element opening may be varied by rotating the valve element within the interior passage of the valve housing.

Abstract: A fluid control and processing system for controlling fluid flow among a plurality of chambers comprises a body including a fluid processing region continuously coupled fluidicly with a fluid displacement region. The fluid displacement region is depressurizable to draw fluid into the fluid displacement region and pressurizable to expel fluid from the fluid displacement region. The body includes at least one external port. The fluid processing region is fluidicly coupled with the at least one external port. The fluid displacement region is fluidicly coupled with at least one external port of the body. The body is adjustable with respect to the plurality of chambers to place the at least one external port selectively in fluidic communication with the plurality of chambers.

Abstract: There is provided a control valve including a casing, a rotor that has a rotary shaft rotatably supported by the casing via bushings, and a sealing ring that is disposed on an inner side of each bushing in an axial direction. Both end portions of the rotary shaft are formed into stepped shapes which respectively come into contact with the bushings from the inner side in the axial direction. Areas of both the end portions of the rotary shaft projected in the axial direction are set to be equal to each other. Penetration holes which allow portions on outer sides of the sealing rings in the axial direction to be open to the atmosphere are respectively formed on a bottom wall portion and a lid body of the casing.

Abstract: The sanitary diverter valve (70) is for use in a drying system or powder conveying system including conveying lines and a purge line of a purge arrangement. The sanitary diverter valve comprises a valve housing (71) with a number of openings (72, 73, 74) configured to be connected to respective lines of the system. The valve housing (71) is substantially cylindrical and includes a first opening (72), a second opening (73) and a third opening (74). Furthermore, the diverter valve (70) comprises a rotatable diversion member (75) provided with a flow channel (76) having a first end (76a) and a second end (76b), an open space (77) being defined between the valve housing (71) and the rotatable diversion member (75).

Abstract: A valve is provided. The valve includes a body provided with fluid passages for circulating fluid therein. The body has a body interface with ports connected to the fluid passages. The valve also includes a valve element having a valve element interface facing the body interface. The valve element can move between different positions so as to permit or obstruct communication between the fluid passages. A biasing element biases the valve element interface against the body interface. A load varying mechanism is provided to load the biasing element with different sealing load forces according to the different positions of the valve element. The sealing load force applied on the rotor is thus decreased during rotation, reducing friction between the valve body and the valve element.

Abstract: A disposable cartridge for preparing a nucleic acid sample including a stationary cartridge body and a cylindrical rotor rotationally mounted to the cartridge body. The cartridge body includes: (i) a cylindrical surface defining a fixed port and (ii) a syringe barrel defining a bore in fluid communication with the fixed port. When the disposable cartridge is disposed in combination with an assay system, syringe barrel is configured to receive a moveable plunger, i.e., to stroke the plunger into and out of the barrel. The rotor is seated within a cavity of the cartridge body such that a mating surface thereof slideably engages a cylindrical surface of the cavity. The rotor comprises a plurality of chambers fluidly connecting to a plurality of ports along the mating surface at different radial positions such that at least one of the chambers is fluidly connected to one of the ports by a connecting channel.

Abstract: A syringe is provided having a hub with an orifice, first and second barrels having interior surfaces to form respective lumens, a slider, and an optional test indicator. The first and second barrels slideably receive respective first and second plungers for movement therein. The slider is operable to provide a fluidly communicative path between the orifice of the hub and the first and second barrel lumens. The optional test indicator is responsive to at least one characteristic of bodily fluid, the test indicator positioned to be exposed to any bodily fluid drawn into the first barrel lumen and visible from an exterior of the first barrel.

Abstract: A modular electro-mechanical rotary valve (EMRV) designed to be installed and removed as a unit is provided. The modular EMRV includes a valve enclosure, at least one rotary valve body with at least one fluid pathway, and an actuator assembly. The valve enclosure, removably disposed within a mating cavity, includes at least one inlet, at least one outlet, and a hollow center. At least one of the at least one inlet or the at least one outlet is configured with at least one exterior seal interface to sealingly engage with at least one interior seal interface of the mating cavity. The actuator assembly, engaged with an actuator interface of the at least one rotary valve body, rotationally actuates the at least one rotary valve body disposed within the hollow center of the valve enclosure.

Abstract: A dish washing machine includes a plurality of spray nozzles to spray wash water, a sump to store wash water, a pump to pump wash water stored in the sump, and a distribution device to distribute wash water pumped by the pump into the plurality of spray nozzles. The distribution device includes a cylindrical housing having an inlet formed in one axial end portion thereof and a plurality of outlets that are arranged in a circumferential surface of the cylindrical housing in an axial direction and connected to the plurality of spray nozzles, an opening/closing member rotatably disposed within the cylindrical housing to open and close the plurality of outlets, and a motor to rotate the opening/closing member. Wash water may be independently sprayed from a plurality of nozzles, a wash tank may be dividedly washed, and loss of pressure of wash water may be reduced, thereby increasing washability.

Abstract: A rotary multi-port valve having a valve body defining a valve chamber and having a plurality of inlet flow ports each having a stationary seat member therein and having a discharge port. A flow diverter member is supported by a valve stem and a tubular trunnion for rotation within the valve chamber and has a diverter chamber. A piston is hydraulically moveable within the diverter chamber and has driving connection with a diverter valve member is linearly moveable for sealing engagement with a selected stationary seat member. The diverter valve member is selectively retracted to a position completely within the valve chamber to permit selective rotation of the flow diverter member within the valve body to an aligned position with any of the inlet ports of the valve body.

Abstract: Multi-position valve and a multi-position valve skid. The multi-position valve comprises an upper valve body, a lower valve body, and a rotary valve core that includes a valve core body and a protruding part and has an oil-directing passageway through the protruding part and the valve core body. The lower valve body has oil inlet passageways through lower end and upper ends. The oil outlet of the oil inlet passageway is on a circle having a radius of the distance from the oil inlet of the oil-directing passageway to its axis, the center of the circle being the axis of the valve core body. When the valve core body rotates, the oil-directing passageway can abut any of the oil inlet passageways. The oil inlet passageways in the multi-position valve run to the lower end of the lower valve body, such that after being connected.

Abstract: A fluid control device (100) having a housing (10) with at least one first port (16) and at least one second port (18, 20), wherein a valve body (30) is enclosed in the housing (10), the valve body (30) providing a fluid path (60) having a first path portion (62) proximal to the first port (16) and an opposing second path portion (64) in a distance from the first port (16) and proximal to the at least one second port (18, 20), the fluid path (60) being switchable between at least a first position (80) and at least a second position (82) in relation to the at least one second port (18, 20) by rotating the valve body (30) around the first main axis (22) of the at least one first port (16).

Abstract: An insert is rotatable relative to a housing to transition the stopcock between different operational states with various different ports being open or closed. The insert includes a manifold shaft which resides within a hollow core of a hub of the housing. The openings are brought into and out of alignment with ports in the housing to cause the stopcock to transition between operational states with two or more of the ports being open or all of the ports being closed. The manifold shaft and hollow core include either detent slots or detent ribs thereon which coact together to cause the ribs to reside within the slots when the insert is rotated to one of the desired operational states, and for the ribs and slots to be out of alignment when outside of one of the desired operational states. The stopcock thus tends to snap into desired operational states.

Abstract: In accordance with an embodiment, a diverter is provided that is configured for use in a fluid delivery apparatus. The diverter includes body portion and a channeling structure, wherein the channeling structure extends from the diverter. A fluid pressure adjustment structure is adjacent the channeling structure. In accordance with another embodiment, a method for holding a diverter in position is provided that includes placing the diverter adjacent a fluid channeling structure, wherein a gasket is positioned between the diverter and the fluid channeling structure and wherein the diverter is configured to have a cavity containing a pressure actuated position holding structure. A fluid is directed through the fluid channeling structure towards the pressure actuated position holding structure. The pressure within the cavity is reduced in response to the fluid flowing towards the pressure actuated position holding structure, wherein the reduced pressure helps hold the diverter in position.

Abstract: The multi-way valve comprises an upper valve body, a lower valve body and a rotary valve core. A valve seat ring is located in the rotary valve core and comprises a body. A first annular boss is arranged on an outer wall of the body, and a second annular boss is arranged on an inner wall. The upper surfaces of the first annular boss and the second annular boss are respectively flush with the upper surface of the body to form a sealing surface which fits with a sealing surface of the upper valve body in a sealed manner. An annular gap is formed between the lower surface of the first annular boss and the rotary valve core, so that liquid in the chamber and an oil incoming channel respectively acts on the lower surface of the first annular boss or the second annular boss to form a sealing load.

Abstract: The invention relates to a piston-cylinder arrangement, in particular a slave cylinder for a hydraulic clutch actuating device, comprising a cylinder housing which is made of a plastic, in which an annular pressure chamber is formed in which a piston is mounted so as to be axially movable for actuation of a clutch release bearing, wherein the inner wall of the pressure chamber forms a guide sleeve. In the case of a piston-cylinder arrangement which stands up to the pressures and temperatures that occur in operation of the clutch actuating device, a stop is situated on the guide sleeve facing the clutch release bearing, the stop being in the form of a threaded connection.

Abstract: A hopper loader having a hopper connected to a vacuum source for applying a vacuum to the hopper to convey material into the hopper through a material inlet. A material separator is disposed between the material inlet and the vacuum source for filtering the material. A material discharge assembly is connected to the hopper and disposed for controlling downwardly gravity flow of the material from the hopper, the material discharge assembly having a material outlet configured to be opened and closed to control the discharge of material from the hopper. A vacuum detector is disposed between the material separator and the vacuum source. A vacuum activated control operatively connected to the vacuum detector and configured to turn off the vacuum source in response to a signal from the vacuum detector.

Abstract: Gas flow control valves comprising a valve housing including a cylindrical interior passage, and a housing opening extending from the interior passage through the housing. The gas flow control valve further comprises a cylindrical rotary valve element including a sidewall, and a rotary valve element opening extending through the sidewall. The valve element is rotatably received within the interior passage of the valve housing, such that the housing opening may be selectively aligned with the rotary valve element opening, and an area of overlap of the housing opening and the valve element opening may be varied by rotating the valve element within the interior passage of the valve housing.

Abstract: A disc valve, in particular a multi-way control valve, is provided which has a housing that has an inlet connection and an outlet connection as connections for a liquid and/or gaseous medium. The connections end in respectively different chambers of the housing, at least one valve disc, in particular a ceramic valve disc, which is provided with at least one first through-flow opening and is arranged rotatably mounted in the housing in order to fluidically connect and separate from each other the different chambers depending on its rotational position by means of the through-flow opening, and a control shaft, which is connected torque-proof to the valve disc in the housing. The disc valve is characterized in that the control shaft or the valve disc has a radial projection, and the housing has at least one rotation stop, which is located in the movement path of the radial projection.

Abstract: Examples are provided that describe a linear hydraulic valve. In one example a linear valve comprises a sleeve with a plurality of ports spaced apart from each other at a distance. The plurality of ports are associated with a plurality of pressurized fluids. A spool comprising a plurality of openings that correspond to the plurality of ports is provided within the sleeve. The plurality of openings are spaced apart in a manner that enables alignment of a given opening of the plurality of openings to a given port of the plurality of ports based on a given position of the spool within the sleeve. The linear valve comprises an actuator for moving the spool in a forward or reverse linear motion along a longitudinal axis of the sleeve. The spool may be moved to a given position based on selection of a pressurized fluid of the plurality of pressurized fluids.

Abstract: A swash plate type variable displacement compressor includes a collection and supply mechanism. The collection and supply mechanism has collection passages, supply passages, an annular space, an inlet port, and an outlet port. The inlet port is communicable with a working collection passage of the collection passages. The outlet port is communicable with a working supply passage of the supply passages. When the inclination angle of the swash plate is maximum, residual refrigerant gas in a compression chamber of collection phase is collected through the working collection passage and the collected refrigerant gas is supplied to a compression chamber of supply phase. On the other hand, when the inclination angle is less than the maximum, residual refrigerant gas is supplied no more into the supply-phase compression chamber.

Abstract: A faucet diverter is revealed. The faucet diverter includes at least one outlet and a control part for switching direction of water flow discharged. The faucet diverter is connected to a faucet.

Abstract: Disclosed are a linkage control device and a blood gas analyzer adopting the linkage control device. The linkage control device comprises a power unit and a rotating component (4) provided with bosses (41, 42). The power unit generates power to drive the rotating component (4) to rotate. The linkage control device further comprises valve components (5, 6, 7, 8), a signal control unit, sensing switches, and sensing pins (43, 44, 45, 46). The valve components (5, 6, 7, 8) are matched with the bosses (41, 42) of the rotating component (4) in a pushing manner. The signal control unit controls the start or stop of the power unit. The sensing switches are connected to the signal control unit via signals. The sensing pins (43, 44, 45, 46) are arranged in pair with the sensing switches and are arranged on the rotating component (4).

Abstract: Fluid processing apparatus has a prefabricated branched network of flexible tubing, for conducting process fluid between process elements of the apparatus, and control valves. A tubing support has opposable front and rear plates which define a pattern of support channels between them in which the flexible tubing network lies, so that the support channels limit or prevent expansion of the flexible tubes. Standard non-reinforced tubing can then be used for high-pressure work. The support body plates can be separated to open the channels for insertion or removal of the flexible tubing. The front plate may be transparent. The control valves operate by simply pressing on the tubing in the support channels to block flow, without invasion of the flow path. The tubing sets can be easily replaced, cleaned or sterilized. The invention is useful in a range of controlled-flow processes e.g. chromatography and filtration.

Abstract: A rotor, a valve assembly, and a method for using the rotor and valve assembly are described that provide a reversed flow path. In an implementation, a rotor that employs example techniques in accordance with the present disclosure includes a plurality of channels formed in a surface of the rotor, the surface configured to be adjacent to and interface with a stator having a plurality of ports, where at least one channel fluidically connects at least three of the plurality of ports.

Abstract: A heating assembly can be used with one of a first fuel type or a second fuel type different than the first. The heating assembly can a include housing have a first actuation member and a second actuation member. The first and second actuation members can be positioned within respective first and second fuel hook-ups. The first and second actuation members can be configured such that connecting a fuel source to the heater assembly moves one of the actuation members from a first position to a second position to control flow through the heating assembly.

Abstract: Examples are provided that describe a linear hydraulic valve. In one example a linear valve comprises a sleeve with a plurality of ports spaced apart from each other at a distance. The plurality of ports are associated with a plurality of pressurized fluids. A spool comprising a plurality of openings that correspond to the plurality of ports is provided within the sleeve. The plurality of openings are spaced apart in a manner that enables alignment of a given opening of the plurality of openings to a given port of the plurality of ports based on a given position of the spool within the sleeve. The linear valve comprises an actuator for moving the spool in a forward or reverse linear motion along a longitudinal axis of the sleeve. The spool may be moved to a given position based on selection of a pressurized fluid of the plurality of pressurized fluids.

Abstract: Provided is a multifunction selection valve for use in a liquid chromatography system. The multifunction selection valve includes multiple ports to which both ends of a 1st dimension separation column may be connected at a part thereof, the multifunction selection valve including: a fluid passing mode in which a fluid introduced thereto is not passed through the 1st dimension separation column but is discharged; a column passing mode in which the fluid introduced thereto is passed through the 1st dimension separation column and then discharged; and a fluid blocking mode in which the fluid is prevented from being introduced. When using the multifunction selection valve, it modifies the flow paths of chromatographic solvents so that the resultant multifunctional liquid chromatography system allows one-dimensional separation, two-dimensional separation, on-line digestion and on-line phosphopeptide enrichment by a single binary pump.