Abstract: A quick coupling device for pressurized fluid, comprising a male coupling (2), a first adapter (36) applied to said male coupling (2) for connection to a first external element, a female coupling (1) associable with the male coupling (2), a second adapter (20) applied to said female coupling (1) for connection to a second external element, at least one adapter (36, 20) being made as an axially hollow piece exhibiting a first portion (100) having a cylindrical external cross section and at least a second portion (101) coaxial to the first portion (100) and having a polygonal external cross section, the polygonal external cross section of the second portion (101) being inscribed along the axial generatrices of the cylindrical external cross section of the first portion (100).

Abstract: The quick-fit coupling (1) for pressurized fluid comprises a valve body (3) extending along a longitudinal axis (L) and having an axial cavity (4) wherein a shutter stem (5) is axially movable with respect to the valve body in contrast to and by action of at least one elastic element (6) between a position for opening and a position for closing an axial passage of fluid through said cavity (4), the stem (5) being configured so as to be subjected by the fluid present in the cavity (4) to a resultant force having a substantially null component at least in an axial direction.

Abstract: This invention relates to a fitment assembly used for dispensing liquids from flexible bags. The connector engages a valved fitment for a container for holding and dispensing fluid. The fitment includes a spout connected to the container and a sliding internal valve body and an external valve body securely positioned within the spout. The connector has a fitment end mateable with the fitment so as to compress the top edge of the external valve body so as to form a seal between the external valve body and the dispensing connector. The external valve body through circumferentially placed apertures allows for substantially complete drainage of the flexible bag.

Abstract: A coupling including female and male couplers configured to be connected together. The female coupler includes a valve body and a detent carrier surrounding the valve body and having a plurality of circumferentially spaced openings extending through a wall of the detent carrier for receiving detents to connect the female coupler to the male coupler. When the female and male couplers are connected together, the detent carrier is axially movable relative to the valve body by externally applied loads acting on the male and female couplers to cause the male and female couplers to separate. A pressure-balancing chamber is provided to prevent premature separation of the couplers. Once separated, the detent carrier axially moves back and the female and male couplers may be reconnected.

Abstract: This female quick-connect coupling element comprises balls for locking a male element in a coupled configuration, positioned in radial housings of a body and able to protrude radially in an insertion channel, and an actuating member mobile between a first position, in which the male element is locked in the female element in coupled configuration, and a second position, in which the male and female elements are in uncoupled configuration. The female quick-connect coupling element comprises an intermediate locking ring, mobile in translation between a rear position, in which an internal wall of the intermediate ring maintains the locking balls protruding in the insertion channel, and a front position of the front side of the female element, in which the locking balls are free to be pushed back opposite the longitudinal axis of the female element under the action of the actuating member.

Abstract: A test kit (110) includes an at least partially transparent or translucent tubular collection chamber (122) which has a flow control valve (111) at the inlet end (122a) thereof. Flow control valve (111) has a mouth (112a) that is used to engage a Schrader valve (132) of a HVACR system to flow pressurized refrigerant fluid into the collection chamber (122) via flow control valve (111). The flow of the pressurized refrigerant fluid is throttled by flow control valve (111) to ensure that sufficient lubricating oil is separated from the refrigerant fluid and remains within the collection chamber (122), even as refrigerant is expelled from collection chamber (122) via vent holes (124). A collector (126) serves to accumulate separated lubricating oil. A frangible ampoule (128) which contains a liquid pH indicator (130) is crushed to contact the pH indicator with the separated lubricating oil to test the pH of the oil by color change of the pH indicator.

Abstract: A bag connector system includes a first coupling element, with a self-closing seal and a housing having a fluid inlet port and a fluid outlet port, and a second coupling element, with a housing having a fluid inlet end and a fluid outlet end. The fluid inlet end is configured to displace the self-closing seal when inserted into the fluid outlet port of the first coupling element. A bag connector system optionally includes a locking mechanism to maintain the first coupling element and second coupling element in a coupled state. Uncoupling of the first and second coupling elements results in minimal fluid contamination on the outer surfaces of the coupling elements. The bag connector systems provided herein are included in medical appliances for waste management.

Abstract: A conduit coupling can have a male portion and a female portion, with each portion having an internal biasing member. When the male portion is disconnected from the female portion, the internal biasing member in the male portion can cause a seal on a moveable plug to be biased against a lip of a stationary wall member to seal liquid from leaking out of the male portion. Also, the internal biasing member in the female portion can cause a lip of a moveable wall member to be biased against a seal that is connected to a stationary plug. Both the stationary plug and moveable plug can be connected to retaining portions by strips that are disposed away from an axis of the conduit coupling.

Abstract: Connector for releasably attaching two fluid transfer lines, includes a flow connector with a first and second connector assemblies (3, 6) each having a fluid passage, a valve rotatably seated in the passage for opening or closing off the fluid passage. The flow connector also including a normal connection/disconnection system and an emergency disconnection system both located at the same interface and each one having its own dedicated actuating system characterized in that the flow connector is combined with a structural disconnectable load diverter (11, 4, 59) diverting the loads and moments created by the transfer line (2) away from the valves and the flow connector.

Abstract: The invention relates to a coaxial high-pressure coupling for hoses or pipelines, comprising a plug part (10) and a receptacle part (30) that accommodates the plug part in the coupled state, the plug part (10) and the receptacle part (30) each having a valve body (11, 31) having an inner channel (13, 33) and an outer channel (16, 36) concentric to the inner channel and the inner channels (13, 33) and the outer channels (16, 36) of the plug part (10) and of the receptacle part (30) being connected to each other in the coupled state, and in the inner channel (13) of the valve body (11) of the plug part (10) a closing cone (18) and in the outer channel (16) of the plug part (10) a closing sleeve (23) each being movable against spring action (21, 25) and being displaceable into the opening position thereof by the receptacle part (30) during the coupling process, is characterized in that a valve bore (61), which is connected to the inner channel (13) at one end and has a connection to the atmosphere at the other e

Abstract: A coupling including female and male couplers configured to be coupled by first and second stage connections. In the first stage connection, a plurality of detents in the female coupler are urged into a detent recess in the male coupler to coupled the female and male couplers. To make the second stage connection after the first stage connection has been made, threads on the male coupler are mated with threads on a release sleeve, which causes valves disposed in the female and male couplers to move to an open position to allow fluid flow through the coupling. In this way, reduced force is employed to engage the female and male couplers while avoiding contact between the detents and the threads on the male coupler, thereby preventing the detents and threads on the male coupler from damaging one another.

Abstract: When a male member is inserted into a female member to connect a first joint portion of a hydraulic joint structure and a second joint portion thereof, a first open end portion of a first oil passage of the male member and a first open end portion of a first oil passage of the female member are connected at a first axial position, and a second open end portion of a second oil passage of the male member and a second open end portion of a second oil passage of the female member are connected at a second axial position. Thus, two hydraulic oil lines can be easily connected at the same time.

Abstract: A first fluid channel of a first body has a first inner diameter part and a second inner diameter part in an order that an inner diameter becomes smaller from a side where a nozzle is inserted. A second body has a second fluid channel capable of communicating with the first fluid channel and further has a first outer diameter part and a second outer diameter part which are inserted in the second inner diameter part in an order that an outer diameter becomes larger from the first fluid channel side. When the tip part of the second body is inserted in the first fluid channel, a wall surface provided at an end of the second inner diameter part along an axial direction, an end surface of the tip part of the second body and an inner circumferential surface of the second inner diameter part form a sealing groove.

Abstract: A valve assembly including a male member and a female member, the male member including a probe having a first fluid passageway having an exit aperture opening through a side face of the probe, and the female member including a socket for receiving the probe, a second fluid passageway having an exit aperture arranged on an internal side face of the socket, a first closing member freely moveable between an open position and a closed position, and a first securing means for releasably securing the first closing member to the probe to restrict relative movement therebetween, the first closing member including two sealing rings such that, when in the closed position, the rings form a seal on either side of the exit aperture.

Abstract: A valve assembly comprises a hot stab and a complementary connection block. The hot stab and the connection block are each provided with a pressure balanced rotating sleeve. When the hot stab is disconnected from the connection block, the rotating sleeve is in a closed position and fluid is not allowed to flow through the :hot stab. The rotating sleeve of the connection block is also in a closed position such that fluid is not allowed to flow through the connection block. The hot stab may be connected and disconnected to the connection block without reducing the fluid pressure.

Abstract: An assembly of a fuel cell for an electroportable device and of a connection adapter for connecting the fuel cell and a fuel reservoir, the adapter being arranged for receiving a member for supplying the cell and an ejection nosepiece of the reservoir, the adapter comprising a valve arranged for being actuated by the ejection nosepiece of the reservoir and switched from a plugging condition, before connection, to a fuel transmission condition, after connection. Thanks to the invention, the fuel cell is permanently maintained under fuel supply.

Abstract: A first module including a first port to connect to a second module including a second port. The first port including an attraction field to attract a second port if the second port was within the attraction field. A flexible member can be connected to the first port and a first edge can apply a force to the first port.

Abstract: A high-pressure fluid conduit that conducts high-pressure fluid from a high-pressure fluid source to a high-pressure fluid container through a hose unit during open or normal operation. This high-pressure fluid conduit has a safety feature that is activated when the high-pressure fluid conduit fails due to exposure to a predetermined force. The safety feature closes off the flow of high-pressure fluid from the high-pressure fluid source and closes off the escape of high-pressure fluid from the hose unit that entered the hose unit during open or normal operation. In addition, when the hose unit fails, fluid flow from the high-pressure fluid source and high-pressure fluid flow from the high-pressure fluid container is prevented.

Abstract: A quick connector having a first element including a piston with a valve for closing an inner duct of the first element and which piston is movable between a first position within a body of the first element and a second position forward of the body and wherein the valve is movable relative to the piston in a direction parallel to an axis of the first element. The connector includes a seal between the piston and the body of the first element and at least one movable member for locking the piston in the first position and a ring for maintaining the movable member in the first position when the first element is coupled to, and during separation of, a second element of the connector and as long as the valve is not closing the inner duct of the first element.

Abstract: Described herein is a system and method for controlling flow in a pipe string using a finger valve. Specifically, the disclosure describes a finger valve comprising a base pipe and a sliding sleeve. The base pipe can comprise a finger port, one or more fingers; and one or more hinges, each of the hinges connecting one of the fingers to the base pipe. The sliding sleeve can comprise a sliding sleeve having a first sleeve with in inner surface comprising a void and a depressor. The first sleeve can be positionable in a first position and a second position. In the first position, the depressor can push the one or more fingers into a closed position. In the second position, the void can rest at least one of the one or more fingers, allowing the at least one of the one or more fingers to move into an open position.

Abstract: A fluidic connector including a connecting element and a mated connecting element wherein the connecting element includes a body defining a flow channel, a locking device for axially locking the body with a body of the mated element and a sealing ring that is displaced between a closed position, when the connector is in uncoupled configuration, and an open position wherein fluid can flow in the connector and wherein the sealing ring includes a housing that receives a coupling member which in a first position attaches the body of the connecting element with the sealing ring in the closed position, and which in a second position attaches the body of the mated connecting element with the sealing ring in the open position.

Abstract: Coupling element for a fluid line, an unlocking element, and a method of engaging and/or disengaging the coupling element with an insertion element. The coupling element includes a housing having a receptacle region structured and arranged to receive an insertion element, and a snap-in locking device in the receptacle region that is structured and arranged for a locking connection with the insertion element. The snap-in locking device includes at least one locking element having an unlocking lever and an unlocking element is movable between a first position, in which the unlocking element interacts with the unlocking lever, and a second position, in which the unlocking element releases the unlocking lever.

Abstract: A fluid coupling includes a socket with a socket main body, a fixed valve, a guide which is engaged with the fixed valve and biased to be pressed against an inner surface of the socket main body, and a guide spring which biases the guide, and a plug with a plug main body, a movable valve, a valve spring, and a valve holder which supports the movable valve and the valve spring. When the plug is inserted into the socket, the guide moves rearward against a biasing force of the guide spring to connect a flow path between the plug and the socket. A fitted portion, which is fitted into the distal end of the plug, is disposed at the end portion of the guide. First seal members are disposed between the fitted portion and a distal end of the plug.

Abstract: A conduit coupling for low temperature applications includes two coupling halves that are equipped with a poppet valve and a stem-actuated valve, respectively, so as to open during a coupling process. The stem-actuated valve has a piston that seals by way of a spreading lip seal.

Abstract: Embodiments of the disclosure may include a fluid connector. The fluid connector may include a holding portion including a housing defining a channel, a sleeve disposed in the channel and defining a passage, an adapter disposed in the passage of the sleeve, and a filter configured to prevent the flow of contaminants into the channel of the housing. The fluid connector may also include an insert portion configured to be inserted into the channel of the housing and secured to the holding portion.

Abstract: A conduit coupling can have a male portion and a female portion, with each portion having an internal biasing member. When the male portion is disconnected from the female portion, the internal biasing member in the male portion can cause a seal on a moveable plug to be biased against a lip of a stationary wall member to seal liquid from leaking out of the male portion. Also, the internal biasing member in the female portion can cause a lip of a moveable wall member to be biased against a seal that is connected to a stationary plug. Both the stationary plug and moveable plug can be connected to retaining portions by strips that are disposed away from an axis of the conduit coupling.

Abstract: The invention relates to a discharge and purging device (10) adapted for limiting the pressure of a fluid (F) occupying the inner volume of a connecting endpiece (2). The device (10) comprises a valve or a valve actuation piston; an inner enclosure (30) opening out on a front face (22) of the valve or of the piston; and an obturator (60) moveable between a closed position (C1) where it obturates the front face (22) at a first seal area (Z92) defining a first seal section (S92) towards the front face (22) and an open position where it no longer obturates the front face (22).

Abstract: An extendable pressurized fluid coupler is disclosed. The extendable pressurized fluid coupler has a guiding portion having a central fluid channel. The extendable pressurized fluid coupler further has a piston having a central fluid channel, the guiding portion and the piston having a common central axis. The extendable pressurized fluid coupler also has a drive circuit for driving the piston. The piston is extendable with respect to the guiding portion. The guiding portion is arranged for guiding the piston along the central axis. The piston is arranged for connecting the pressurized fluid coupler to a corresponding coupler having a second fluid channel, so that a fluid passage for a main pressurized fluid circuit is established.

Abstract: A non-interchangeable two-component connecting valve capable of connecting a fuel supply to a fuel cell or other device is disclosed. One component of the connecting valve comprises at least one center post and one internal elastomeric seal, which opens when moved or compressed by a correctly sized and dimensioned mating tube from the other component. In one embodiment, only one valve component has one or more internal seals. In alternate embodiments, both valve components have one or more internal seals, which can open simultaneously or sequentially.

Abstract: A sterile connector assembly for mounting on a fluid system includes a first connector and a second connector. The first connector includes a stem defining a fluid passage therethrough, a first housing surrounding the stem and defining a first aperture, and a first valve disposed over the first aperture. The second connector includes a second housing configured to matingly engage the first housing. The second housing defines a second aperture and defines a seal structure. The seal structure is configured to engage the stem. The second connector also includes a second valve disposed over the second aperture. The second valve is configured to engage the first valve when the first housing engages the second housing.

Abstract: A shut-off valve or connecting valve capable of connecting a fuel supply to a fuel cell is disclosed. The valve comprises a first valve component and a second valve component. Each valve component has an outer housing and a biased slidable member disposed inside the housing forming an internal seal. During the connection process, the two valve components establish an inter-component seal. Afterward, in one suitable embodiment the slidable member moves inward and opens the internal seal in the valve component to establish a flow path. In another embodiment, the slidable member moves inward and exposes a first filler and the first filler abuts a second filler in the other valve component to establish a flow path. In other embodiments, at least one valve component is sized and dimensioned to limit access to the internal seal.

Abstract: A hydraulic fast fitting for hydraulic pipes, including a first fitting element (1) in fluid communication with a first pipe (2), provided with a first valve (3) for opening and closing the fluid communication with the first pipe (2), and a second fitting element (5), provided with a second valve (6) for opening or closing a fluid communication with a second pipe (7), and further including a removable fast-coupling device (19) for connecting said first and second fitting elements (1, 5) and establishing a fluid communication between said first and second pipes (2, 7).

Abstract: Known fluid dispensers can suffer from the disadvantage of inadvertent disconnection of a connector causing potentially hazardous spillage of fluid. The present invention relates to a fluid dispensing assembly comprising a tap and a connector body. The tap comprises a first valve, movable between an open and closed position to allow fluid flow through; and a first portion of an interlocking coupling, configured for rotational engagement with a second complementary interlocking coupling portion of the connector body by rotation about a first fluid dispensing assembly axis. The connector body also comprises a second valve, movable between an open and closed position to allow fluid flow through. By this configuration, the first and second interlocking coupling portions remain interlocked preventing disconnection of the connector body from the tap unless the first and second valves are both in the closed position.

Abstract: An air pump assembly for a power chuck has a frame and two air jet devices. The air jet devices are securely mounted on the frame. Each air jet device has a nozzle and a valve. The nozzle has a main body, a pin and a cap. The pin is mounted in the main body. The cap is mounted around a distal end of the main body and surrounds the pin. The valve may be mounted on a power chuck, faces and aligns with the pin, and has a chunk, a ball and a ball spring. With the air jet devices, the air pump assembly can blow air into a power chuck such that jaws of the power chuck are driven to move.

Abstract: A valve assembly comprises male and female coupling members that are connectable by inserting a probe of the male member into a socket of the female member. A fluid passageway within the female member has an aperture within the socket that is open and closed by a first closing member that moves within the socket. A fluid passageway within the male member has an aperture on the probe that is open and closed by a second closing member. When mated fluid flows between the two fluid passageways. The female member includes a first cage. During insertion of the probe into the socket, the first cage releasably locks the first closing member to the probe such that the cage carries any separation forces created due to the pressure of the fluid within the passageways.

Abstract: A grease and lubricating oil line coupler includes a nozzle and a receiver which can be intercoupled for grease or lubricating oil delivery. Each component is equipped with a normally closed, sealed poppet, which prevents the entrance of dirt and other contaminants into the free ends thereof when decoupled, and which provides an easily-cleanable, flush-faced mating surface. The nozzle has a handle-operated internal valve with an interlock that is controlled by a quick disconnect slidable collar, which prevents the release of lubricants from the nozzle unless it is coupled to the receiver. Only when the nozzle and receiver are interconnected can the valve be opened, and only when the valve is closed can the nozzle be decoupled from the receiver. When the nozzle and receiver are coupled together, internal parts within the two components move to create a path through which lubricants can flow.

Abstract: A nozzle includes a nozzle body having a nozzle tip for engaging a fuel hose coupling, the tip extending from the body, and a valve sleeve for opening and closing a fuel path between the tip and the body. The tip is mounted within the body on a flexible shaft, so as to accommodate misalignment between the nozzle and the fuel hose coupling. This eliminates the need for a bearing at the end of the shaft, which causes a pressure drop in the nozzle. The shaft is axially slidable in the mounting in a first portion of the nozzle body. The first and second portions of the body are joined with a weak link, which is frangible in the event of excessive load, to release the abutment and allow the nozzle tip to travel towards the body and close the fuel path. Thus a separate shut-off valve is not required. Also a pressure regulator sleeve moves out of the nozzle body towards the nozzle tip in the event of excessive fuel pressure.

Abstract: A coaxial quick coupling suitable for being employed in very high pressure applications in the field of emergency tools, such as shears, retractors, cylinder lifters and the like, and/or in the construction field. The coupling according to the present invention is characterized in that it has a high standardization of the internal components, different components being used both in the male coupling and in the female coupling, and in that it has a greater structural and constructional simplicity, also having few points of elastomeric sealing, which results in longer duration and greater reliability of the coupling itself.

Abstract: The invention relates to a quick connect coupling (15) for connecting hydraulic lines, especially in earth moving machines and the interchangeable add-on devices and tools thereof. The quick connect coupling (15) comprises a first and a second connecting part (15a or 15b) which can be releasably coupled along a coupling axis to transfer a hydraulic liquid. In order to avoid axial forces during coupling, the hydraulic liquid to be transferred, in the coupled state, emerges from the one connecting part (15a or 15b) at a right angle to the coupling axis and enters the other connecting part (15b or 15a) at a right angle to the coupling axis.

Abstract: An aseptic fluid connector having a first connector including a first fluid passageway for receiving a fluid therein; a first port in fluid communication with the first fluid passageway for passage of the fluid therethrough; and a first deflecting member. The first deflecting member includes a first engaging portion radially spaced relative to the first port, and a first valve movable between a closed position and an open position with movement of the first engaging portion between a non-deflected position and a deflected position, respectively. In the non-deflected position, the first valve is located in the closed position forming a fluid-tight seal between the first valve and first port and preventing the passage of fluid therethrough, and in the deflected position, the first valve is located in the open position allowing the aseptic passage of fluid through the first port.

Abstract: An apparatus for filtering water has an interface and a filtration/purification canister removably mountable thereon. Connecting the canister to the interface automatically opens a check valve in the interface to permit water to flow from the interface into and through the canister, and then back to and through the interface to an outlet port. Disconnecting the canister from the interface automatically closes the check valve, stopping the flow of water. An end cap may be substituted for the canister to permit fluid to flow through the interface when the canister is not mounted on the interface. The outlet port may be directly connected to an appliance that uses water, to eliminate possible contamination that may occur when water is brought indirectly form the outlet port to the appliance instead. A flapper valve is provided in the canister to prevent back flow of fluid from the inlet port of the canister when the canister is not mounted on the interface.

Abstract: A cooling coolant pipe of a server cabinet includes multiple tube bodies interconnected in series and at least one adjustable valve. In each of the tube bodies a first chamber and a second chamber that are adjacent to and separated from each other, the second chambers of the two adjacent tube bodies are in communication with each other, and a wall surface of each of the tube bodies has at least one connection port in communication with the first chamber. The adjustable valve is disposed in one of the tube bodies. The first chamber in each of the tube bodies is in communication with the second chamber in the tube body through the adjustable valve. In this way, the adjustable valve adjusts the flow rate of a cooling fluid flowing from the second chamber to the first chamber.

Abstract: A fluid coupling includes and houses, in a plug and a socket: valves; springs that bias the valves so as to bring the valves into pressure contact with valve seats; and spring holders which position and hold the springs. When the plug is inserted into the socket, the valves abut against each other and are retracted, and flow paths in the plug and the socket are connected to each other. Each of the valves includes: a largest diameter portion that abuts against an inner circumferential surface of the plug or the socket and positions the valve in an axial direction thereof; and inclined surfaces reduced in diameter from the largest diameter portion toward both sides in the axial direction.

Abstract: A coaxial coupling comprising a female part and a male part which are couplable to each other is disclosed. The female part and the male part having an inner passage and a concentric outer passage, wherein the inner passage of the female part is fluidly connected to the inner passage of the male part and the outer passage of the female part is fluidly connected to the outer passage of the male part in the coupled state of the coupling, one of the parts further comprising a by-pass valve that guides the fluid flow internally from the inner passage to the outer passage thereof in a non-coupled state of the coupling, the other part comprising an activator for activating the by-pass valve during coupling of the two parts wherein the by-pass valve is adapted to guide the fluid flow from the inner passage of the one part to the inner passage of the other part during coupling of the two parts.

Abstract: The present invention relates broadly to a valve assembly (10) being adapted to detachably receive a dry-break refuelling nozzle (12). The valve assembly comprises a receiver body (14) which defines a forward fuel passageway (16) in which a poppet valve member (18) is slidably mounted. The valve assembly (10) also comprises a tail body (22) secured coaxial with the receiver body (14) and defining a rearward fuel passageway (26). the tail body (22) slidably houses a check valve member or diffuser (28) which is driven by a hydraulic actuator or piston assembly (30).

Abstract: A quick connection and separation device of a tire repair machine comprises an air compressor, a glue bucket, and a pipe joint configured for connecting with an air pipe; an intake pipe of the glue bucket or a connecting portion of the pipe joint can be connected to an exit pipe of the air compressor; and when the intake pipe or the connecting portion is connected to the exit pipe of the air compressor, the intake pipe or the connecting portion is embedded in a fixing/unfixing structure inside a body of the air compressor to be fixed; and when the intake pipe or the connecting portion should be separated from the air compressor, the intake pipe or connecting portion can be unfixed by pressing the fixing/unfixing structure, and quick connection or separation effect can be achieved.

Abstract: A quick coupler has a coolant supplier seat and a transmission seat that can be optionally connected or disconnected. When the coolant supplier seat is connected to the transmission seat, the coolant can flow automatically from the coolant supplier seat to the transmission seat, so as to cool down electronic components inside a rack. When the coolant supplier seat is disconnected from the transmission seat, the coolant instantly stops flowing into the transmission seat. Because of the quick coupler, the rack installed inside a narrow space is convenient to set up or disassemble.

Abstract: A quick connector having a first element including a piston with a valve for closing an inner duct of the first element and which piston is movable between a first position within a body of the first element and a second position forward of the body and wherein the valve is movable relative to the piston in a direction parallel to an axis of the first element. The connector includes a seal between the piston and the body of the first element and at least one movable member for locking the piston in the first position and a ring for maintaining the movable member in the first position when the first element is coupled to, and during separation of, a second element of the connector and as long as the valve is not closing the inner duct of the first element.

Abstract: A coupler having a socket with a valve and an element for energizing the valve in a closing direction, and a plug having a valve and an element for energizing the valve of the plug in a closing direction, where the plug is detachably fitted and coupled with the socket and is capable of communicating with the socket by opening the valve of the plug and the valve of the socket in the fitted and coupled state, A key groove or a key is provided in either the socket or the plug, and a ring member having a key or a key groove which can be fitted with the key groove or the key is provided in the other of the socket and the plug and the ring member is rotatable about a central axis of connection of the socket and the plug.

Abstract: The invention concerns the female or male member (3) of a connection (1) that can be connected with a corresponding male or female connection member (5) and includes a pusher (33) and a stop valve (35) capable of sliding axially relative to the pusher (33) for coupling to the member (3). The member (3) further includes at least one seal (34) mounted on a first part (35) selected from the pusher and the valve and capable of sealing interaction with a first portion (331) of the second part (33) selected from the pusher and the valve in an uncoupled configuration of the member (3). In the coupled configuration of the member (3), a second portion (333) of the second part (33), defining a seal (34) protection portion (333), is radially provided between the seal (34) and a main fluid flow line (V) in the member (3).