Abstract: A refrigeration system comprising an evaporator, and a method of operating a refrigeration system. The evaporator comprises: a first fluid volume upstream of a second fluid volume, and a plurality of channels fluidly connecting the first fluid volume and the second fluid volume. The system further comprises a flow restrictor arranged to prevent fluid flow through at least a first channel of the plurality of channels in response to a pressure difference between the first fluid volume and the second fluid volume being less than a predetermined threshold, and to permit fluid flow through the first channel in response to the pressure difference being greater than the predetermined threshold.

Abstract: 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.

Abstract: A diverter is provided for use in directing airflow from an input port to selected output ports. The diverter allows for operation without valves, and is able to provide an air signal to selected output ports in a predetermined manner. The diverter having a rotatable member, or swivel valve, directing air signals to the desired output port depending on the rotational position thereof. The diverter is driven by a controlled actuator or motor, to thus control the manner in which air signals are provided to a plurality of output ports in a controlled manner.

Abstract: A rotary valve internal combustion engine has a piston connected to a crankshaft, where the piston is reciprocatable in a cylinder, and a combustion chamber being defined in part by the piston. The engine has a rotary valve rotatable in a valve housing fixed relative to the cylinder, the rotary valve having a valve body containing a volume defining, in part, the combustion chamber and further having in a wall part thereof a port giving, during rotation of the valve, fluid communication successively to and from the combustion chamber via inlet and exhaust ports in the valve housing. The valve body has a non-uniform radial profile along its axial length and/or about its axis of rotation to accommodate changes in the profile of the valve body during operation to maintain a substantially constant clearance between the valve body and the housing throughout the length of the valve body.

Abstract: An apparatus for minimizing dead leg spaces in a container or tubing includes a first member having a flange for attaching the first member to a wall of the container or tubing, the flange having at least one aperture, and a second member rotatably coupled to the first member, the second member having an upper end having at least one aperture, and an open distal end. The second member is rotatable relative to the first member between a closed position where the at least one aperture of the second member is misaligned with the at least one aperture in the flange to prevent the passage of fluid, and an open position where the at least one aperture of the second member is aligned with the at least one aperture in the flange to allow for the passage of fluid.

Abstract: An exemplary pharmaceutical compounding system and device for mixing materials from at least two distinct material sources can include a valve including a valve housing and a valve structure located within the valve housing. The valve structure can be configured to permit fluid to flow through the valve when in an open position, and can include a gravity wall wherein, when the valve structure is in the open position, fluid moving through the valve structure moves upward against a force of gravity when travelling through the valve and traversing the gravity wall.

Abstract: A dispensing unit for controlling flow of a substance is disclosed. The dispensing unit comprises a nozzle and a plug. The nozzle comprises a channel that comprises a first portion and a second portion, communicatively coupled with the first portion. The first portion of the channel has a symmetry axis. The second portion of the channel comprises an outlet that is offset relative to the symmetry axis of the first portion of the channel. The dispensing unit further comprises a plug that comprises a wall and a first aperture, which penetrates the wall through an outer surface of the wall.

Abstract: An installation of a water supply pipe and a valve connector of an ice maker includes a valve connector with an inlet tube extending therefrom which communicates with a water supply hole in the body. The inlet tube has a first flange extending inward therefrom. A sleeve is inserted into the inlet tube and includes a shank and a second flange extending outward from the first end thereof. The sleeve extends through a seal ring which contacts the inside of the inlet tube. A tube adapter is inserted into the inlet tube and includes a passage defined through the tubular portion of the tube adapter. The tubular portion includes multiple pawls. Each pawl has a hook portion. A water supply pipe is inserted into the passage and clamped by the pawls.

Abstract: A connector reception portion is configured such that, when a battery pack is housed in a battery housing portion, a battery cylindrical portion is positioned at a connector reception portion of the battery housing portion, and thereafter, while the battery pack is inclined so that the battery cylindrical portion is located diagonally forward and downward with respect to a battery mounting surface, the battery cylindrical portion is fitted within a peripheral wall of the connector reception portion, and the battery pack is inclined so that an inclination angle is smaller while the battery pack is pushed forward in a fitted state, and thereby the battery pack is laid on the battery mounting surface of the battery housing portion, and a battery connector is connected to connection terminals in a direction parallel to the battery mounting surface.

Abstract: A valve device comprises a body, a rotating valve set and a safety valve set. The body comprises an inner space, a first opening and a second opening. When the rotating valve set is located in a water-providing position, the inner space, the first opening and the second opening are communicable. When water pressure is higher than a safe pressure, the safety valve set and the rotating valve set can block the first opening and the second opening that safe pressure is maintained at the second opening. When water pressure becomes normal, the safety valve set is moved to its original position. Therefore, it has a piston-typed safety valve set is highly reliable. It has a coaxial structure to reduce its volume. It has an engaging and hooking structure for precise and easy assembly. It has an opening and/or closing function for its valve body with wide range of applications.

Abstract: A multifunction cryogenic vacuum valve adapted to evacuate, seal off, and monitor vacuum levels and relieve cryogenic vacuum insulated systems is provided, wherein no thread sealant is necessary for the thermocouple threads.

Abstract: A fuel system including a high pressure fuel pump with a quiet fuel metering valve is disclosed. In one example, the quiet fuel metering valve may be cam driven. The fuel system may reduce engine noise and may provide operating modes that are different from other fuel systems.

Abstract: A rotary selection valve (1) is disclosed having a stator (20) and a rotor (40) having complementary abutting fluid tight surfaces (30,50) for relative rotation between the stator (20) and the rotor (40) about a rotational axis. The stator or rotor has at least one connection port in fluid communication with an associated orifice at said stator or rotor abutment surfaces (30,50). The stator and/or rotor further comprise a separate fluid recess extending radially beyond said associated orifice or orifices and open to the complementary abutment surfaces for improving the automatic cleaning of the valve.

Abstract: A pilot valve (2) for controlling operation of a hydraulically-actuated pressure reducing valve, the pilot valve including a housing (4), and a first valve member (15) mounted in the housing for longitudinal movement along an axis relative to the housing and to a second valve member (22) in response to the outlet pressure of the pressure reducing valve. The first valve member is provided with an aperture (20) and the second valve member comprises a closure portion which varies the effective flow cross section of the aperture in accordance with relative longitudinal movement between the first and second valve members. An adjuster (26) controls the relative rotational position of the first and second valve members, the closure portion having a profile such that relative rotation between the first and second valve members causes the closure portion to vary the effective flow cross section of the aperture (20).

Abstract: A plug member of a gas valve includes a main body. The main body has an axial bore in an axial direction, a first inlet and a second inlet in radial directions, and a guiding slot on a surface. The first inlet and the second inlet are connected to the axial bore. A diameter of the first inlet is greater than a diameter of the second inlet. The guiding slot has a first end communicated with the first inlet and a second end communicated with the second inlet, and a width of the guiding slot gradually reduces from the first end to the second end. Therefore, the gas valve may provide a gas flow with a linear change by controlling the plug member.

Abstract: A water purification apparatus comprising at least: (a) one or more water purification components to provide a purified water stream, preferably having a conductivity of less than 1 ?S/cm; and (b) a stepper motor (35) to control the dispense of the purified water stream (28) from the water purification apparatus. Stepper motors can provide very fine and accurate control of the dispense of the purified water stream from the water purification apparatus, which control is unaffected by the flow or flow rate of the purified water stream.

Abstract: A choke assembly tensioner system for use with a tensioning system of a drilling rig to control a riser recoil event with a choke spool housing with a hydraulic tank fluid port, a spool retainer port, an actuator opening with a rotation limiting keyway and a choke spool disposed within the choke spool housing. An actuator system with a cover, electrical and directional connections is connected and retains the choke spool housing which is further retained within the choke spool housing by a retaining spool which has an orifice for hydraulic fluid. The choke spool is connected to the choke spool housing by bearing surfaces on the choke spool and the choke spool housing. The choke spool is comprised of an outer spool and a rotatable inner spool, both containing a plurality of bidirectional flow holes. The rotatable inner spool has a shaft which contains pressure neutralization holes.

Abstract: A riser recoil valve for use with a tensioning system of a drilling rig to control a riser recoil event with a choke spool housing with a hydraulic tank fluid port, a spool retainer port, an actuator opening with a rotation limiting keyway and a choke spool disposed within the choke spool housing. An actuator system with a cover, electrical and directional connections is connected and retains the choke spool housing which is further retained within the choke spool housing by a retaining spool which has an orifice for hydraulic fluid. The choke spool is connected to the choke spool housing by bearing surfaces on the choke spool and the choke spool housing. The choke spool is comprised of an outer spool and a rotatable inner spool, both containing a plurality of bidirectional flow holes. The rotatable inner spool has a shaft which contains pressure neutralization holes.

Abstract: An article of laboratory glassware for directing the flow of chemical materials is described. The article includes a glass manifold having a plurality of input ports and at least one output port, and a plurality of stopcocks. Each stopcock has an inlet port and an outlet port connected by a passageway through the plug. Each of the stopcock output ports is connected to one of the manifold input ports, and each of the stopcock input ports is connected with one end of a hollow glass tube, and the other end of the hollow glass tube is connected to a female ground glass joint. The output ports of the manifold are terminated to a male ground glass joint. Each plug is rotated by an electrical motor or a servo, and sensed by a sensor. The rotation of each rotating plug is controlled by a computer.

Abstract: The cone plug valve includes a valve body, a fluid inlet and a fluid outlet, a valve stem, and a cone supported on the valve stem. The metal cone is rotatably separate from the valve stem but moves axially in response to axially movement of the valve stem. A seat is fixably positioned within the valve body for sealing engagement with the cone, which has a sealing surface extending outward from the cone shaped exterior surface for sealing with the seat to close off flow through the valve body.

Abstract: A novel disk drive includes an enclosure and a disk rotatably mounted to and within the enclosure. The disk drive enclosure has a fill port opening with an internally threaded section and an internal annular seating surface. A fill port valve is disposed within the fill port opening. The fill port valve includes an externally threaded section that is engaged with the internally threaded section of the fill port opening, an external annular seating surface in contact with and forming a continuous annular seal with the internal annular seating surface of the fill port opening, and a gas flow channel spanning the externally threaded section of the fill port valve. The disk drive may be helium-filled, and may also include a metal foil seal that is externally adhered to the disk drive enclosure and covers the fill port opening and the fill port valve.

Abstract: An exdributor valve of a heat exchanger includes a distributor formed to define an interior and configured to distribute single phase liquid refrigerant from the interior then change to a two-phase refrigerant to cooling channels of the heat exchanger and a flow modulation device. The flow modulation device is operably interposed between the interior of the distributor and the cooling channels and is configured to modulate an area through which the single phase liquid refrigerant is permitted to flow from the interior of the distributor then change to a two-phase refrigerant to equally distribute to each of the cooling channels.

Abstract: A fluid dosing valve assembly for dispensing a volumetric amount of a fluid in precise and repeatable amounts, particularly for dosing small amounts. The fluid dosing valve assembly includes a valve body with a fluid path, and a stem element for opening and closing the fluid path by rotation, the rotation being performed from a first closing position to an opening position and from the opening position to a second closing position, with rotation angles between the first closing position and the opening position and between the opening position and the second closing position that allow the opening cycle to be performed at constant rotational speed.

Abstract: A conical rotary valve includes a conical valve body including a frustum of a cone and a first fluid passageway. The valve further includes a conical engagement body at least partially covering the conical valve body, where the conical engagement body comprising a second fluid passageway. The valve includes a valve actuator rotatably engaged to the conical valve body to provide a variable flow area that includes an intersecting area of the first fluid passageway and the second fluid passageway. The first fluid passageway and the second fluid passageway are structured such that a value ?Af/??v is monotonically increasing, where Af is the variable flow area and ?v is a rotational angle of the conical valve body.

Abstract: A coupler for a fluid delivery device is disclosed which couples a first waterway component and a second waterway component, the coupler being an overmold component.

Abstract: The invention relates to a valve comprising a housing and a closing member arranged in the housing, from which member a shaft protrudes via which the closing member is rotatable in the housing. In order to provide a working and easy-to-use valve, the closing member comprises a sector closing the opening, a flexible sector having a thinner wall than the closing sector, a guiding sector having the same radius (R) as the inner surface of the housing wall, and an open sector.

Abstract: A heat engine can have a fuel selector valve for selecting between a first fuel and a second fuel. Making the selection with the fuel selector valve can also determine a flow path through the heat engine, there being two different paths, each configured for a different fuel. A burner nozzle can form a single unit with the fuel selector valve. In some embodiments the burner nozzle can also form a single unit with an outlet valve.

Abstract: The invention relates to a valve device comprising a valve body defining a fluid flow duct having a throttle element disposed therein and turned about its axis by actuator means via a drive shaft, the throttle element having an internal cavity defined by a circular wall that is open in its bottom portion. The circular wall also presents, over a portion of its periphery, an opening of varying shape so as to define a fluid flow passage in the duct that is variable between a fully-open position in which the opening co-operates in full with the duct, and a fully-closed position in which said circular wall closes the duct. The device further includes an annular sealing gasket disposed in the flow duct, said gasket being in contact with the wall of the internal cavity in the throttle element.

Abstract: In one aspect, the present disclosure is directed to a rotary valve including a valve body having a curved portion and two side portions, wherein a line extending through the respective centers of the side portions defines an axis of rotation of the rotary valve. The valve body may include a first fluid connection arranged in the body to fluidly connect at least one of the side portions and the curved portion, via a first opening in at least one of the side portions and a second opening in the curved portion. The valve body may also include a second fluid connection arranged in the body to fluidly connect at least one of the side portions and the curved portion, via a third opening in at least one of the side portions and a fourth opening in the curved portion, respectively.

Abstract: In a valve, the combination comprises a valve body defining an annular seat, and porting at upstream and downstream sides of the seat; a valve operating handle and stem; a tubular part connected into the body and defining a first side opening facing toward one of the sides; a tubular stopper sleeve received within the tubular part and having an open end projecting through a seat defined opening; and a second side opening rotatable by the stem into and out of registration with the first side opening whereby flow through the valve and stopper sleeve is established when the second side opening registers with the first side opening, and flow through the valve is blanked when the second side opening is rotated out of registration with the first side opening.

Abstract: In a rotary valve comprising a tubular housing (3) having, at the side part, a port (6) for communicating the inside and the outside thereof, and a tubular valve body (10) which is contained within the housing rotatably and has, at the side part, an orifice hole (11) capable of opposing to the port (6), the rotary valve of which the flow channel area formed by communicating the port (6) and the orifice hole (11) is changed by rotating the tubular valve body, at least one rotation stopping position with which the angle between the rotation stopping position at which the flow channel area is minimized and the rotation stopping position at which the flow channel area is maximized is equally divided, and the pressure loss differences between the adjacent rotation stopping positions are the same on condition that the passing flowing rate remains constant is provided.

Abstract: A double water-seal accumulator used in a perfume dispenser includes a casing defining a vertical guide groove, an adapter defining a vertical guide hole and transverse guide groove, a stop ball supported on a spring member in the vertical guide hole and forced by the spring member to block the passage between the vertical guide hole and the transverse guide groove, a shaft member mounted in the casing and defining therein an angled hole and having a bottom raised portion, and an operating member coupled to the shaft member and operable to rotate the shaft member to a predetermined position where the angled hole is kept in communication with the vertical guide groove and the raised portion is stopped against the stop ball to open the passage between the vertical guide hole and the transverse guide groove.

Abstract: A gas tap for controlling the flow of a gas to a cooking appliance. In one embodiment, the gas tap includes a body and a rotatable regulation member positioned within the valve body, the valve body having a stationary groove for the inlet of gas from an exterior wall surface to an interior wall surface of the body, the regulation member having a passage opening for the inlet of gas from an exterior surface to an interior cavity of the regulation member, the passage opening moving with an angular rotation of the regulation member. The groove and passage opening are shaped, dimensioned and positioned relative to one another such that the regulation of an intermediate gas flow Qgra (a flow between Qmax and Qmin) is proportional to the angular displacement of the rotatable regulation member.

Abstract: In a valve, the combination comprises a valve body defining an annular seat, and porting at upstream and downstream sides of the seat; a valve operating handle and stem; a tubular part connected into the body and defining a first side opening facing toward one of the sides; a tubular stopper sleeve received within the tubular part and having an open end facing the seat; and a second side opening rotatable by the stem into and out of registration with the first side opening whereby flow through the valve and stopper sleeve is established when the second side opening registers with the first side opening, and flow through the valve is blanked when the second side opening is rotated out of registration with the first side opening.

Abstract: A gas rotary valve comprises a valve body (1), a valve core (2), a valve cover (3), an actuating shaft (4) and a regulator positioning pin (6). The valve core (2) has a large through hole (22), a first small through hole (23) and a second small through hole (24) which are all disposed on a peripheral surface of said valve core (2). A guide pin (41) radially disposed on the rear end of the actuating shaft (4), a first step (3a;3c), the rear end (61) of the regulator positioning pin (6) and a second step (3b;3d) are disposed in distance in the inner chamber of said valve cover (3), respectively preventing the guide pin (41) from rotating. The three through holes on the peripheral surface of the valve core can respectively be communicated with the inlet passage of the valve body.

Abstract: A conical rotary valve includes a conical valve body including a frustum of a cone and a first fluid passageway. The valve further includes a conical engagement body at least partially covering the conical valve body, where the conical engagement body comprising a second fluid passageway. The valve includes a valve actuator rotatably engaged to the conical valve body to provide a variable flow area that includes an intersecting area of the first fluid passageway and the second fluid passageway. The first fluid passageway and the second fluid passageway are structured such that a value ?Af/??v is monotonically increasing, where Af is the variable flow area and ?v is a rotational angle of the conical valve body.

Abstract: A dispense tap for a frozen beverage machine has a transition section defining a tapered bore with an inlet for frozen beverage from a freeze barrel of the machine and an outlet for frozen beverage controlled by a valve operable by a handle. The handle is rotatable to allow frozen beverage to flow from the transition section through a dispense cavity in the valve for exiting the tap. The outlet has a cross-section greater than the cross-section of the inlet which prevents ice conglomerating and forming a plug in the bore of the transition section.

Abstract: A duel fuel gas control valve controls the supply of gas (e.g., natural gas or liquid propane gas) to a gas grill. The duel fuel gas control valve is structured to control either natural or LP gas flow at the desired operating characteristics based on conventional gas supply characteristics and gas grill requirements. A restrictor mechanism, when in first and second configurations, respectively, restricts movement of the valve core to a first predetermined range for a first mode of operation (first type of gas supply) and to a second predetermined range for a second mode of operation (second type of gas supply).

Abstract: A control valve for use in a liquid-carrying system, such as a heating or cooling system, containing a differential pressure governor which keeps the differential pressure between the inlet and the outlet constant. The control valve also includes an arrangement for setting and adjusting the maximum flow of liquid through the valve. This arrangement comprises a flow valve having two cooperating valve members (4 and 6), which are arranged in the flow path and are constructed as two concentric rings, each of which has a recess extending about 180 degrees in the circumferential direction. The outer ring (4) is stationary relative to the valve housing, while the inner ring (6) may be displaced in the circumferential direction by means of a rotatable handle, whereby a greater or smaller overlap between the recesses may be provided. The maximum flow amount may hereby be set manually.

Abstract: The invention relates to a valve comprising a housing and a closing member arranged in the housing, from which member a shaft protrudes via which the closing member is rotatable in the housing. In order to provide a working and easy-to-use valve, the closing member comprises a sector closing the opening, a flexible sector having a thinner wall than the closing sector, a guiding sector having the same radius (R) as the inner surface of the housing wall, and an open sector.

Abstract: A drink supply container for a machine which dispenses beverages. The drink supply container includes an end member having a side wall and a support connected to the side wall. The support is substantially positionable in a plane. The drink supply container also has a gas inlet valve, a portion of which extends along an axis that is perpendicular to the plane of the support. The drink supply container has a drink supply outlet valve, a portion of which extends along an axis that is perpendicular to the plane of the support.

Abstract: A valve includes a body having an interior and defining at least one inlet passageway and discharge passageway. The valve also includes a flow diverter disposed within the body between the inlet and discharge passageways to receive a fluid from the inlet passageway in an inlet direction. The diverter is adapted to discharge the fluid to at least one discharge passageway in a direction that differs from the inlet direction. The diverter is rotatable to vary the discharge direction. According to one embodiment, the discharge direction is substantially perpendicular to the inlet direction.

Abstract: A change valve for an air compressor is combined with the vent tube of an air compressor, including a connector, a valve base, a valve body, an anti-leak gasket, a sleeve and a button. The valve base has at least two connect tubes, with a guide tube connected to each of the connect tubes. The button can be turned to rotate the valve base together with the valve body, so the vent hole of the valve body can be aligned to the air hole of either of the two connect tubes. If the air compressor operates, compresses air may flow in the valve body via the air hole into the guide tube via the vent hole of the connect tubes, and finally into an object. In this way, interchanging the position of the vent hole of the valve body enables the change valve connected to objects having different air valves.

Abstract: A water-distributing control valve includes a valve body, a valve shaft, at least one stop ring, a water-stop pad, a pressure distributing plate and a bolt element. The valve body includes a watering pipe extended from the outer periphery thereof and having an outlet defined therein. The valve body further includes a bore formed therein. The valve shaft inserted into the valve body includes a rotary lever disposed at the front end thereof. An arcuate slot and at least one annular groove are mounted at the intermediate section of the valve shaft. A plurality of through apertures and a receiving recess are arranged at the rear end of the valve shaft. The valve shaft includes an inlet attached on the bottom thereof. The pressure distributing plate is matingly engaged in the water-stop pad and then placed into the receiving recess together with the water-stop pad.

Abstract: A faucet valve cartridge for controlling fluid flow through a dual-handle faucet, including a valving member supported within a valve body for rotation about a longitudinal axis. A first sealing surface and a first inlet opening is supported by the valving member. A seat includes a second sealing surface and a second inlet opening. The first inlet opening is configured to be in selective fluid communication with the second inlet opening upon rotation of the valving member. A retainer couples the seat to an outer wall of the valve body.

Abstract: A dispense tap for a frozen beverage machine has a transition section defining a tapered bore with an inlet for frozen beverage from a freeze barrel of the machine and an outlet for frozen beverage controlled by a valve operable by a handle. The handle is rotatable to allow frozen beverage to flow from the transition section through a dispense cavity in the valve for exiting the tap. The outlet has a cross-section greater than the cross-section of the inlet which prevents ice conglomerating and forming a plug in the bore of the transition section.

Abstract: A drink supply container valve assembly connectable to a drink supply container for a beverage dispensing apparatus of a refrigeration device. The drink supply container valve assembly has a support connectable to an end of the container, a gas inlet valve mounted to the support, and a drink supply outlet valve mounted to the support.

Abstract: A drink supply canister for beverage dispensing apparatus for a residential refrigerator. The beverage dispensing apparatus includes a drink supplier including a drink supply canister holder for holding a plurality of the drink supply canisters, and a plurality of valve actuators for causing the drink supply to be selectively released from the drink supply canisters, a water supplier for selectively supplying carbonated water and non-carbonated water for producing the beverages, a gas supplier for supplying CO2 gas to carbonate the carbonated water provided by the water supplier and for supplying CO2 gas or other gas for pressurizing the drink supply canisters to provide a consistent flow rate of the drink supply from the drink supply canisters, and one or more beverage requesters for enabling users to request one of a plurality of beverages.

Abstract: A fluid control valve utilizes a rotatable plug valve member mounted in a fluid passage to control the flow of fluids. Two segments are placed on each side of the plug valve member within a recess located between the plug valve member and the body of the fluid passage. The outer surface of the segments includes an elastomeric seal and metal annular boss, which acts as a stop to limit deformation of the seal when the valve is closed and under pressure.

Abstract: A drink supply canister for beverage dispensing apparatus for a residential refrigerator. The beverage dispensing apparatus includes a drink supplier including a drink supply canister holder for holding a plurality of the drink supply canisters, and a plurality of valve actuators for causing the drink supply to be selectively released from the drink supply canisters, a water supplier for selectively supplying carbonated water and non-carbonated water for producing the beverages, a gas supplier for supplying CO2 gas to carbonate the carbonated water provided by the water supplier and for supplying CO2 gas or other gas for pressurizing the drink supply canisters to provide a consistent flow rate of the drink supply from the drink supply canisters, and one or more beverage requesters for enabling users to request one of a plurality of beverages.