Abstract: A loose type pneumatic valve and a loose type pneumatic valve module, the loose type pneumatic valve including a valve body including a pneumatic passage therein; a valve head on the valve body, the valve head being coupleable with an actuator; a stem on the valve head, the stem being configured to open and close the pneumatic passage; and at least one alignment socket on the valve head, the at least one alignment socket being configured to align the valve head with the actuator.

Abstract: A plug valve for controlling flow through high-pressure fluid flow lines has a valve chamber and a rotatable valve body. The chamber has an undercut. First and second valve seat inserts are mounted in the chamber undercut. The valve body has a midsection, a flow port extending through the midsection, a passage extending between an upper surface and a lower surface of the midsection, an upper valve stem extending from the midsection upper surface, and a lower valve stem extending from the midsection lower surface. The upper surfaces of the valve body exposed to internal fluid pressure and lower surfaces of the valve body exposed to internal fluid pressure have substantially equal surface areas. First and second plug seal rings having substantially equal diameters are mounted, respectively around the upper valve stem and the lower valve stem.

Abstract: The present invention pertains to a thermal expansion valve for a heat exchanger with at least one header. The valve includes a valve block and a superheat defining mechanism. The valve block includes a high pressure inlet, a low pressure outlet, a first suction gas port and a second suction gas port. A contact surface for coupling the valve to the header includes at least one cylindrical portion of the valve block. The invention is also directed at a heat exchanger with a corresponding thermal expansion valve.

Abstract: A test cock for determining an operating condition of a backflow prevention system includes a body portion having a distal end and a proximal end and a space defined within the body portion. A distal opening is provided on the body portion at the distal end and a proximal opening is provided on the body portion at the proximal end and the proximal opening is in fluid connection with the body portion space. A body portion fitting is disposed in the body portion and is providing a fluid connection with the body portion space. A fluid sensor is coupled to the body portion fitting and is in fluid connection with the body portion space. A rotating system fitting has a first end and a second end where the second end is provided in the body portion proximal opening.

Abstract: A drop-in lube boost valve assembly replaces an OE lube boost valve assembly in a vehicle transmission hydraulic circuit. The OE valve assembly has a valve body with inlet, balancing and outlet ports. The drop-in valve assembly includes a sleeve having inlet and outlet ports, and a bore extending between and fluidically connecting the ports. The drop-in valve ports are spaced from each other. The sleeve includes valve and spring chambers. A valve has a valve face, a sealing portion and a spring stem and is positioned in the sleeve with the sealing portion positioned in the sleeve bore. A spring is positioned on the spring stem. The valve reciprocates in the sleeve between an open state in which the sealing portion does not overlie the sleeve outlet port and a closed state in which the sealing portion overlies and closes off the outlet port.

Abstract: Structures, systems, and methods for controlling water flow in relation to an underpass space of a road support structure, including a method comprising receiving precipitation forecast data; receiving water volume data for water flowing toward an underpass space of a support assembly underlying a road, wherein a first culvert is positioned through the underpass space and a second culvert positioned around the support assembly configured to transfer water around the support assembly, and wherein one or more barriers are positioned to control flow of water within the first and second culvert; predicting water volume input to the underpass space based on the water volume data and the precipitation forecast data; and controlling the position of the one or more barriers to control flow of water within the first culvert and the second culvert based on the predicted water volume input.

Abstract: The invention relates to a valve, in particular an expansion valve, for controlling a fluid flow, having a valve housing with an accommodation space and at least two fluid ducts connected to the accommodation space, having an opening which runs perpendicularly to the fluid ducts and opens into the accommodation space, wherein a sealing ring holder with a valve means is situated in the accommodation space, wherein the sealing ring holder with the valve means held therein can be inserted into the accommodation space through the opening, and wherein the valve means is positioned rotatably in the sealing ring holder by means of at least two sealing rings. The invention also relates to a sealing ring holder.

Abstract: Welded check valves include a poppet assembly, a spring, and a disc that contacts the spring. The disc may be held at a position away from a weld when forming the welded check valve. Embodiments may include retention features configured to allow one or more of the poppet assembly and disc to pass the retention features in an assembly orientation, and to retain those elements when they are in an operational orientation. Methods include inserting the poppet assembly, contacting the poppet assembly with a spring, inserting a disc, retaining the disc away from a weld side, and welding the check valve together. The poppet assembly and/or disc may pass one or more retaining features when inserted, and be retained by the retaining features when the check valve is operated. The weld may be a thermal weld.

Abstract: A check cover assembly for a backflow prevention (BFP) assembly including a dome-shaped base with an upstanding shroud, wherein the shroud forms an inner area configured to receive a test cock to support and protect the test cock. The shroud forms a gap for accessing the test cock to selectively open and close the test cock while installed in the inner area. The base forms a passageway from the inner area into the BFP assembly configured so that when the test cock is open, a pressure reading of a pressure zone in the BFP assembly can be taken via the test cock. A retention fork is in a slit formed in the shroud so that the test cock is captured in the inner area but the test cock can be removed from and inserted into the inner area without rotation when the retention fork is removed from the slit.

Abstract: Fluid damped check valves are described herein. A representative check valve includes a piston assembly movably positioned within a housing. The housing can include a flow chamber, a damping chamber containing a damping fluid, and a leak chamber fluidly coupled between the flow chamber and the damping chamber. The piston assembly can include a poppet positioned in the flow chamber, and a flange positioned in the damping chamber. In operation, the piston assembly is movable between (i) a closed position in which the poppet sealingly engages the housing to at least inhibit fluid flow through the flow chamber and (ii) an open position in which the poppet disengages from the housing and permits fluid flow through the flow chamber. When the piston assembly moves between the open and closed positions, the flange moves through the damping fluid in the damping chamber to slow the movement of the poppet.

Abstract: A centric butterfly valve (1) in which top and bottom boss surfaces (19, 29) are formed to be spherical, an outer peripheral end of the blade portion of the valve disk (24) is formed to be an M-shaped section part (29) with round-shaped apex parts (27) and a round-shaped valley part (28) smoothly linked, and the centric butterfly valve has a valve disk (3) having an extended part (41) obtained by successively and slightly extending the spherical surface of each of the top and bottom boss surfaces (19, 20) to a blade portion (40) side.

Abstract: A valve seat includes a first end; a second end positioned opposite from the first end; and a body extending from the first end to the second end, the body defining an inner surface and an outer surface, the inner surface defining a main bore extending through the body from the first end to the second end, the main bore defining a main bore axis, the body defining a shaft bore extending from the inner surface to the outer surface, the shaft bore defining a shaft bore axis positioned perpendicular to the main bore axis, the shaft bore defining an inner shaft opening and an outer shaft opening, the body defining a concave seat bearing surface extending around the inner shaft opening.

Abstract: A floodwater redistribution assembly for redirecting flood waters to a predetermined location for irrigation and municipal water service includes a subterranean vault that is positioned adjacent to a body of water known for periodic flooding. An inlet pipe is integrated into the subterranean vault to direct the water from the body of water into the subterranean vault. An outlet pipe is integrated into the subterranean vault to direct the water outwardly to a predetermined location for the purposes of irrigation and municipal water service. A ball valve is positioned within the subterranean vault to facilitate the water to flow into the outlet pipe. A ball valve control unit is coupled to the ball valve. The ball valve control unit is in remote communication with a remote control source and the ball valve control unit actuates the ball valve between an open position and a closed position.

Abstract: A check valve includes a valve body defining a valve bore extending from a first axial end to a second axial end, the valve body including an annular body and a cross member secured to and extending across the valve bore from the annular body on one side of the valve body to the annular body on an opposite side of the valve body, the valve bore at the cross member divided into more than one portion by the cross member; a position block extending from the cross member; a valve member positioned within the valve body and configured to rotate between an open position and a closed position; and a pivot pin extending from the valve member, engaged with the position block, and fixed with respect to the valve member; the valve member and the pivot pin configured to rotate together between the open position and the closed position.

Abstract: A cuboid hydraulic block of a slip control system of a hydraulic vehicle brake system has a lateral face, an opposite lateral face, at least two long sides, a short side, and an opposite short side. All receptacles for solenoid valves of the slip control system are disposed in the lateral face of the hydraulic block. Receptacles for hydraulic accumulators of the slip control system and connecting bores for a master brake cylinder are disposed in the opposite lateral face of the hydraulic block. Receptacles for hydraulic pumps of the slip control system are disposed in the long sides of the hydraulic block. An electric motor for driving the hydraulic pumps is disposed on the short side of the hydraulic block. Connecting bores for wheel brakes are disposed in the opposite short side of the hydraulic block.

Abstract: A device for protecting an electric pump against overpressures, which comprises a main body which forms a cavity with an axis of extension which is substantially parallel to an axis of extension of the main body and a flow control element which can slide in the cavity along the axis of extension of the cavity between a closed position, in which the flow control element affects an inlet of the cavity which can be connected fluidically to a delivery port of an electric pump, and an open position, in which the flow control element clears at least partially the inlet so as to place it in fluidic connection with an outlet of said cavity, elastic means designed to push the flow control element in response to the pressure that is present in the delivery port.

Abstract: Embodiments described herein relate to a pressure-regulating device, systems that include the device, and related methods. For example, the pressure-regulating device may receive gas from a gas supply at a first pressure (e.g., on a supply side of the pressure-regulating device) and may regulate or reduce the pressure of the received gas to a selected or suitable second, different pressure.

Abstract: A protection structure of a sampling tube of a tank truck is provided. A positioning and protecting base is provided around an outer circumference of the sampling tube. The sampling tube includes a sampling output port for connection with a sampling output hose. The positioning and protecting base includes a through hole. The sampling output port extends through the through hole to partly project outside of the positioning and protecting base. With such an arrangement, the stiffness and strength of the entire sampling output port are enhanced for resisting impact and hit, and readiness of connection between the sampling output port and a sampling output hose is not negatively affected to thereby improve usage performance of the sampling tube.

Abstract: Apparatus and method for receiving and holding debris in a collection chamber of a vacuum cleaner. The collection chamber has an inlet opening through which debris-entrained air enters the collection chamber. When the vacuum cleaner is off, an internal valve prevents debris from leaving the collection chamber through the inlet opening. The internal valve is movable from a first sealed position, in which the internal valve covers the chamber inlet opening, to a second unsealed position in which the internal valve does not cover the chamber inlet opening.

Abstract: A centric butterfly valve (1) in which top and bottom boss surfaces (19, 29) are formed to be spherical, an outer peripheral end of the blade portion of the valve disk (24) is formed to be an M-shaped section part (29) with round-shaped apex parts (27) and a round-shaped valley part (28) smoothly linked, and the centric butterfly valve has a valve disk (3) having an extended part (41) obtained by successively and slightly extending the spherical surface of each of the top and bottom boss surfaces (19, 20) to a blade portion (40) side.

Abstract: A high-pressure float valve for positioning downhole within a well to control fluid flow includes a valve cage having a pair of side seal grooves each for receiving an exterior elastomeric seal therein and a plurality of cutouts provided on the top end of the valve cage. The valve cage can undergo nitride heat treatment and the internal components are made from 1018 hot rolled steel. The dimensions of a Model 5RF plunger-type valve and Model 5RG flapper-type float valve can be modified to meet the high pressure of a 10 ksi rating.

Abstract: A sectional control device controls the flow of particulate material from a meter assembly to a primary manifold of an air seeding system. The sectional control device includes a plate assembly having particulate openings extending between the meter assembly and the primary manifold and a shut-off mechanism configured to control the flow of the particulate material through the particulate openings. The shut-off mechanism includes a gate configured to slide between an open position, where particulate material can flow through the particulate opening, and a closed position, where particulate material is prevented from flowing through the particulate opening. The shut-off mechanism also includes an actuator configured to drive the gate between the open position and the closed position.

Abstract: A microfluidic component package that is readily integratable within a microfluidic system.

Abstract: A thermal expansion valve includes a power head and a valve body. The power head and the valve body are fixedly arranged. The power head includes a power head cover, a power head seat, and a membrane. The membrane includes a membrane recess and a corrugated portion. The membrane recess is located at the center position of the membrane. The corrugated portion is located at the peripheral position of the membrane recess. The membrane recess is recessed away from the power head cover. The valve body comprises a top portion. The top portion is provided with an opening. At least a part of the power head is extended into the opening. With an axial direction of the valve body as a projection direction, a projection of the power head towards the top portion falls on the top portion.

Abstract: A medical fluid connector, having a first body with a tube section with an inlet and a first thread, a second body with an outlet and a second thread that engages the first thread to move the first and second bodies between closed and opened positions. The second body has a third thread that is configured to rotate in the opposite direction in relation to said first and second threads. The connector has a closure cap with a fourth thread that, in a delivery state of the fluid connector, is detachably screwed to the third thread of the second body, wherein the fluid connector assumes the open position, and wherein the outlet is closed off in an air-permeable and liquid-tight manner by means of the closure cap.

Abstract: An additive manufacturing system can include a powder dispenser; a gate adjacent to the powder dispenser; a recoater blade system; and a control operable to move the gate with respect to the powder dispenser to selectively dispense powder from the powder dispenser.

Abstract: The present disclosure relates to a housing for a flow measuring device and a flow measuring device. The housing includes a housing body having a housing wall and a housing chamber, where the housing wall has a first wall element and a second wall element. The first wall element and the second wall element enclose the housing chamber, and the housing chamber is configured to receive a measuring tube. The housing wall has first and second openings configured to support the measuring tube at first and second measuring tube ends. The first wall element has a first leaf and a second leaf, and the second wall element has a third leaf and a fourth leaf, where the first leaf and the second leaf and also the third leaf and the fourth leaf engage flush in one another.

Abstract: A damper with inner and outer tubes and a piston slidably disposed within the inner tube to define first and second working chambers. A fluid transport chamber is positioned between the inner and outer tubes and a collector chamber is positioned outside the outer tube. First and second external control valves are positioned in fluid communication with the collector chamber. An intake valve assembly, abutting one end of the inner tube, includes first and second intake valve bodies with intake passages and intake valves. A first intermediate chamber is positioned between the first and second intake valve bodies and an accumulation chamber is positioned between the second intake valve body and a closed end of the outer tube. The fluid transport chamber, first intermediate chamber, and accumulation chamber are arranged in fluid communication with the collector chamber. The intake valves control fluid flow between the accumulation chamber and second working chamber.

Abstract: An overmolded valve is provided for use in a container having a throat. The valve is inserted into the throat of the container and prevents liquid from flowing from the container during shipment or storage. When the container is inverted for use with a dosing and/or dispensing apparatus, the valve remains closed until it is opened by an upward force to permit liquid to flow from the container, by gravity, to the dosing and/or dispensing apparatus. The valve closes when the upward force is removed. A pair of plastic semi-helical springs urge the valve to the closed position.

Abstract: An actuator for a HVAC system includes a base having a motor and a drive device driven by the motor and configured to be coupled to a movable HVAC component for driving the movable HVAC component between multiple positions, and a removable cartridge removably attached to the base.

Abstract: Provided are systems and methods for decreasing the cost and improving a suitable well safety valve. A well safety valve, comprising: an outer housing having a central bore extending axially through the outer housing, wherein the outer housing comprises an outer wall having a receptacle formed in the outer wall; an inner sleeve disposed in the central bore of the outer housing, wherein the inner sleeve comprises a lockout feature in an exterior surface of the inner sleeve; a sleeve disposed in the receptacle; a piston disposed in the sleeve, wherein the piston is actuated to travel longitudinally in the sleeve, wherein the inner sleeve is operable to move in response to movement of the piston; and a valve member disposed in the outer housing, wherein the valve member is operable to selectively restrict flow through the well safety valve in response to movement of the inner sleeve.

Abstract: Provided is a pressure control apparatus in which workability in assembly of a body, a spool valve, a retainer, and an elastic member is improved and a high degree of freedom in a design of installation of the spool valve is obtained. A pressure control apparatus includes: a body having an opening portion penetrating a wall portion which demarcates a spool hole; a spool valve that is disposed displaceably in the spool hole; a plate-shaped retainer disposed at one end side of the spool valve in an axial direction in the spool hole; and an elastic member 6 disposed between the spool valve in the spool hole and the retainer. The retainer has a wide portion and a narrow portion. The opening portion has a first opening portion that allows the retainer to pass through and a second opening portion that inhibits the retainer from passing through.

Abstract: A hydraulic block of a slip control system of a hydraulic vehicle brake system includes receptacles for the hydraulic accumulator and receptacles for outlet valves arranged on opposite sides of each other in the hydraulic block. The sides of the hydraulic block, which comprise the receptacles for the outlet valves and the hydraulic accumulators, are connected to one another by bores perpendicular thereto.

Abstract: The invention discloses a pressure balanced mixing device comprising a balanced module including a fixed tube and a movable element including a cylinder which connects with two cups and is between the two cups blocking a cold-water inlet and a hot-water inlet of the fixed tube, wherein each cup has an opening and a base plate, each opening is in communication with a cold-water outlet and a hot-water outlet of the fixed tube. The cylinder has two side walls and two connecting rods. One of the two side walls is separated from the base plate of one of the two cups by a cold-water space, the other side wall is separated from the base plate of the other cup by a hot-water space. The cold-water space and the hot-water space are in communication with the cold-water inlet and the hot-water inlet of the fixed tube, respectively.

Abstract: A coupling device for coupling and decoupling a flow regulating device from a water piping system. The coupling device includes an inlet and an outlet, each arranged to be connected to a pipe of the piping system, and a holder arranged between the inlet and the outlet for holding the flow regulating device. The coupling device further includes a locking device which is movable from and towards the holder between an unlocked and a locked position. In the locked position, the locking device is arranged to engage and lock the flow regulating device held in the holder and the device is coupled to the inlet and the outlet. In the unlocked position, the locking device is moved away from the flow regulating device for removal of the flow regulating device from the coupling device.

Abstract: A hydraulic block of a slip control system of a hydraulic vehicle brake system has receptacles for inlet valves and outlet valves of the slip control system arranged on a cover side, and receptacles for block valves, intake valves, and hydraulic accumulator on an opposite main side. All connecting bores for wheel brakes and a main brake cylinder are arranged on a transverse side and an eccentric chamber is arranged on an opposite transverse side of the hydraulic block.

Abstract: A vehicle ventilation system includes an inlet duct incorporating a poppet valve. The system also includes an evaporator core, a heater core, an air discharge duct and a blower. The blower moves air from the inlet duct through at least one of the evaporator core and the heater core to be discharged through the air discharge duct.

Abstract: An implantable bodily fluid drainage system including a collection vessel and a mechanical volume limiting mechanism for preventing overfill of the collection chamber. The mechanical volume limiting mechanism is not susceptible to malfunction if immersed in the bodily fluid. Moreover, the volume capacity of the fluid collection chamber is adjustable in addition to the overfill prevention functionality.

Abstract: A motor vehicle braking system cuboidal hydraulic block includes at least one wheel connector to which at least one wheel brake cylinder is connectable, a master brake cylinder receiving borehole connected to the at least one wheel connector such that a master brake cylinder is at least partially providable in the master brake cylinder receiving borehole, and a plunger receiving borehole that extends from an engine side of the hydraulic block in the direction of an opposite side of the hydraulic block and that is connected to the at least one wheel connector such that a plunger of a motorized plunger device is providable therein.

Abstract: A fluid coupling member includes a housing having an interior and an exterior, the interior of the housing defining an airflow path through the fluid coupling member, a valve member pivotally attached to the interior of the housing, and at least one protrusion formed on the valve member or the housing. The at least one protrusion is structured to prevent the valve member from becoming stuck in a downward folded position against the housing.

Abstract: A fluid circulation assembly for a dishwasher appliance includes a pump, a diverter, and a valve. The diverter includes an inlet and a plurality of outlet ports. The inlet of the diverter is in fluid communication with the pump for receiving fluid from the pump. The valve is in fluid communication with the diverter via one or more of the plurality of outlet ports. The valve includes a housing, a dual check valve assembly mounted in the housing and a plurality of conduits. The dual check valve assembly selectively directs fluid from the diverter to one or more of the plurality of conduits.

Abstract: A light irradiation substrate is provided which can cope with cases of emergency and which is capable of optimum irradiation with therapeutic light regardless of the shape or size of affected parts while keeping a lid on cost. The center-to-center distance between two adjacent LED chips (13) facing each other across the boundary between two unit substrates (7) adjacent to each other in an X direction or (a Y direction) and belonging to the respective unit substrates (7) is twice or less as long as the center-to-center distance between two LED chips (13) adjacent to each other in the X direction (or the Y direction) within each of the unit substrates (7). Each of the unit substrates (7) includes a connection section (10) that provides external connection of wires (12). The connection section (10) is provided on a back surface of a flexible substrate (6).

Abstract: A microfluidic device includes an integrated circuit and a first substrate layer having a first surface and a second surface. The first surface of the first substrate layer is connected to the integrated circuit. The first substrate layer is in fluid communication with the integrated circuit. The microfluidic device also includes a second substrate layer having a surface area substantially larger than that of the first substrate layer. The second substrate layer includes a first and second surface. The first surface of the second substrate layer is connected to the second surface of the first substrate layer. The second substrate layer includes a first fluid inlet. The second substrate layer is in fluid communication with the integrated circuit through the first substrate layer.

Abstract: An adapter system for a check valve which comprises a housing open at the bottom and a lateral wall pierced by a hole, and a flap fitted inside the housing and movable between a shut-off position in which the flap shuts off the hole and a free position in which the flap does not shut off the hole. A plug is provided for being inserted into the hole through an end face and a stop is provided for being placed against the lateral wall of the housing opposite the lateral wall pierced by the hole and comprising an attachment device provided for attaching the stop to the housing and provided so that the plug comes to rest against the stop. Such an adapter system may be installed without it being necessary to dismantle the housing.

Abstract: A medical fluid pneumatic manifold system includes a first plate including a plurality of apertures, a second plate attached to the first plate so as to form a plurality of pneumatic flowpaths sealed between the first plate and the second plate, a plurality of tubing connections and a plurality of pneumatic tubes connected to the plurality of tubing connections, the plurality of tubing connections placing the plurality of pneumatic tubes in pneumatic communication with the plurality of pneumatic flowpaths via the plurality of apertures of the first plate, and a pneumatic reservoir in pneumatic communication with the plurality of pneumatic flowpaths, the pneumatic reservoir configured to provide pneumatic pressure to the plurality of pneumatic tubes.

Abstract: The disclosure relates to a pressure release valve (100). The pressure release valve may be suitable for use as an oil recovery valve. In one embodiment, the pressure release valve may comprise a piston (5) and tube (4) configured to slide within a valve body, wherein the piston is configured to remain sealingly engaged with the tube until the pressure release valve fully activates. Upon activation, the piston may disengage from the tube, thereby allowing fluid to escape from the valve through the tube.

Abstract: The present invention provides a regulator for medicine infusion capable of preventing a flow rate of a liquid medicine to be injected to a patient from exceeding a predetermined flow rate needed for a patient, and controlling the flow rate of the liquid medicine to be uniformly maintained. The regulator for medicine infusion of the present invention provides the advantages of blocking and continuing the inflow of the liquid medicine by the combination of the elements of the membrane member, the resilient plate and the lever and by the adjusted resilience of the resilient plate, and allowing the liquid medicine to flow at a constant rate by adjusting the resilience of the resilient plate and/or the resilience of the membrane member at predetermined levels.

Abstract: A multifunction valve includes a valve body defining an inlet, and outlet and an interior chamber. A flow control gate is disposed within the interior chamber and is rotatable through an arcuate range of positions relative to the outlet providing a high level of precision control of a fluid flow rate through the multifunction valve. A method of modulating a fluid flow rate includes directing fluid flow through a multifunction valve from an inlet to an outlet, the multifunction valve including a flow control gate, adjusting the flow rate through the multifunction valve by rotating a control shaft to position the flow control gate to variably occlude the outlet of the fluid control valve.

Abstract: A power element has a closed space provided between a first diaphragm and a second diaphragm. An interposing member is interposed between the first diaphragm and the second diaphragm. Accordingly, a size of the closed space can be optionally determined in accordance with a shape such as a thickness of the interposing member. Therefore, limitations on the size of the closed space due to a shape of the first diaphragm and the second diaphragm can be reduced. Accordingly, limitations on the size of a fluid enclosing space due to a shape of a diagram can be reduced.

Abstract: A noise reduction device for a negative pressure line of a brake booster is provided. The improved noise reduction device is disposed in a vacuum hose, and includes a negative pressure line of a vehicle in which a brake booster and a surge tank of an engine are connected via the vacuum hose to use negative pressure of the surge tank. In particular, noise caused by pulsation of an air flow and vibration of a valve which occur due to an operation of an engine piston is reduced.