Abstract: A valve includes a valve body and a free floating poppet. The valve body includes an inlet, an outlet, and a fluid flow passage therebetween. The free floating poppet is disposed in the valve body, and is moveable between at least a closed position, in which the free floating poppet at least substantially restricts fluid from flowing through the fluid flow passage, and an open position, in which fluid is allowed to flow through the fluid flow passage. The free floating poppet includes a base section and a cutback section. The base section has a first cross sectional area. The cutback section has a second cross sectional area that is less than the first cross sectional area.

Abstract: A fluid line coupling apparatus comprising a first enclosure and a second enclosure. The first enclosure has a first passageway extending therethrough and a piston slidably disposed therein. The piston is movable between a closed position, wherein the first passageway is blocked by the piston, and an open position, wherein the first passageway is not blocked by the piston. The second enclosure has a second passageway extending therethrough and a collar slidably disposed therein. The collar is movable between the closed position, wherein the second passageway is blocked by the collar, and the open position, wherein the second passageway is not blocked by the collar. The first and second enclosures are engageable such that the front surface of the piston and the front surface of the collar lie in a substantially common plane when the piston and the collar are in their closed position.

Abstract: A one-touch fitting type adapter and a filter assembly are provided in which the filter assembly used for machinery, such as a bidet or a refrigerator, is easily assembled with or disassembled from the adapter through a one-touch fitting manner such that the filter assembly is easily adapted for the machinery. A multiple adapter capable of coupling a plurality of adapters in series is provided such that a plurality of filter assemblies used for a water purifier, a water ionizer or a functional water maker are detachably engaged with the multiple adapter through a one-touch fitting manner.

Abstract: A machining center including a machining head, a tool changer, an air driven tool and an air valve system. The air driven tool is connectable to the machine head by action of the tool changer. The air valve system has a first portion associated with the machining head and a second portion associated with the air driven tool. The first portion and the second portion include a connection therebetween having an airflow across the connection before the connection seals.

Abstract: A connector for piping including two tubular fitting parts and quick-coupling and quick release connector having a plurality of locking segments circumferentially distributed in a plane perpendicular to the axis of the fitting parts and housed in radial slots of an axial projecting portion of a first fitting part that, during the coupling stage, is superimposable to a corresponding projecting axial portion of the second fitting part. A revolving ring can be controlled to rotate in order to work on the locking segments so as to push them into at least one radial seat of the projecting portion of the second part of a joint or to house them in its own radial seat, respectively for the coupling and the uncoupling of the fitting parts. Two independently operable hydraulic cylinders are arranged substantially at 180° from each other in the rotation plane of the revolving ring and they react, each one, between a first lever fastened to the first fitting part and a second lever fastened to the revolving ring.

Abstract: A check valve actuator has a body, a sliding seat, a drive shaft, a spring assembly and a knob. The body has a mounting collar, a convex ridge, an internal cavity and a through hole. The mounting collar is formed on the front end of the body and has an internal surface. The internal cavity is formed inside the body. The through hole communicates with the internal cavity. The sliding seat is mounted slidably against the internal surface of the internal cavity and has an annular seat. The drive shaft is extends through the internal cavity and the through hole in the body. The spring assembly is pressed between the closed rear wall of the internal cavity and the annular seat and the drive shaft. The knob is attached to the drive shaft at the rear end of the body.

Abstract: The invention relates to a quick-connect coupling for hydraulic fluid conduits. The inventive coupling consists of a male element and a female element comprising an outer tubular part and a mobile coupling part. In addition, joints are provided between the tubular parts and define chambers. According to the invention, during the coupling phase, one hydraulically-pressurised chamber can be communicated with an atmospheric pressure chamber, using at least one longitudinal groove or similar element which is disposed in the tubular coupling part or in the outer tubular part.

Abstract: A female hydraulic coupling member is disclosed which comprises a first flow port; a second flow port; a third flow port in fluid communication with both the first flow port and the second flow port; a first poppet valve for opening and closing the first flow port; and a second poppet valve for opening and closing the second flow port, the second poppet valve being connected to the first poppet valve such that the second poppet valve moves to the closed position when the first poppet valve is open and moves to the open position when the first poppet valve is closed.

Abstract: A pipe coupling is configured such that when a male coupling member and a female coupling member are to be connected with each other, a valve disposed in the female coupling member is partly inserted into the male coupling member so as to come into press-contact with the valve in the male coupling member, and to cause displacement of the valves, to thereby open a fluid passage in the pipe coupling. An O-ring is provided on the interior surface of the male coupling member. A sleeve is arranged in a female coupling member such that a forward end portion of the sleeve is inserted into the male coupling member in such a manner that the outer surface of the forward end portion of the sleeve sealingly engages with the O-ring, while allowing the valves of the male and female coupling members abut against each other within the forward end portion of the sleeve.

Abstract: A fluid quick connector includes first and second coupled housings having aligned bores. A biased shut off valve is mounted in the first housing and has a seal end normally biased into a fluid flow blocking position; but movable away from the seal upon contact with an end form inserted into the bores to a fluid flow enabling position. The first and second housings interact at an adjustable axial interface formed of mating threads to vary the insertion distance of the endform into the first housing after the endform is latched in the first and second housings by a retainer carried in the second housing, to regulate the fluid flow through the quick connector.

Abstract: A quick connect coupling including male and female elements that are adapted to fit axially in each other and each includes a valve that is displaced to an open position by engagement by a fixed pusher part of each element when they are being fitted together. The female element is provided with a locking member in which a part of the male element is received and which is reciprocally movable in a radial direction with respect to an axis of fit of the elements between two positions in which the locking member respectively allows or opposes the separation of the male and female elements and wherein the engaging surfaces of the valves and pusher parts is such that no open volumes or voids are created therein in which a liquid may collect during assembly or disassembly of the male and female elements.

Abstract: A removable particle collector for an apparatus which separates metal particles from lubricating oil. A valve assembly has a bore that provides a passage into the reservoir from outside. A valve element is normally biased against a valve seat to close the bore. A plug has a stem which when inserted into the valve assembly bore forces the valve element away from the valve seat. A portion of the stem is magnetized to attract ferromagnetic particles in the reservoir. A plurality of balls rotatably project from a surface on either the valve assembly or the plug and are received in a plurality of locking grooves in the other of the valve assembly and the plug to secure those components together. The balls are lubricated by fluid from the reservoir and can rotate to reduce wear which could loosen the components.

Abstract: A coupling member has a spherical rotatable valve member is operatively installed therein so as to be movable in an axial direction of the coupling member, and so as also to be rotatable between the opening rotational position and a closing rotational position under a control of a cam mechanism comprising a pin and a cam hole formed in the rotatable valve member and slidably engaged with the pin. The coupling member further comprises a stopper to be engaged with the rotational valve member to hold it into the opening rotational position and a spring member for urging the rotatable valve member against the stopper via the pin.

Abstract: An annular gasket is stationarily mounted on one coupler, and a tubular body is mounted for axial sliding movement within another coupler. The body has an outer wall formed with a sealing surface that sealingly engages the gasket in a sealed position, and with an outer channel that is spaced from the gasket in a bleed position in which pressurized fluid within the couplers is released to a bleed fitting.

Abstract: A personal hydration device providing fluid delivery to an external mouthpiece and a gas mask mouthpiece is disclosed. The personal hydration device includes a container having an exit port and an exit valve, a diverter valve, an external mouthpiece, a gas mask with a gas mask mouthpiece, and three hoses connecting these elements together. The diverter valve has a body, including one inlet and two outlets, and a spool moveably mounted within the body. The spool is moveable between a first position and a second position, and normally biased toward the first position. When in the first position, the first outlet is in an open position and fluid is delivered to the external mouthpiece. When in the second position, the first outlet is in a closed position and fluid is delivered to the gas mask mouthpiece.

Abstract: A closure device used in a fluid dispensing assembly. The closure device contains a housing, a poppet member, and a biasing member. The closure device provides a retaining structure for stabilizing and aligning the poppet member and biasing member within the housing.

Abstract: A breakaway coupler for coupling upstream and downstream hose includes one or more locking balls carried by a downstream coupling member. An upstream flapper is pivotally secured with respect to an upstream housing. A pushrod is axially movable in response to engagement by the downstream coupling member. A pry recess on the downstream coupling member is spaced between the downstream housing and the upstream housing, such that a tool inserted into the pry recess is leverageable to move the downstream coupling member to unlock the breakaway coupler.

Abstract: A male coupling half includes a male valve and a male body and the female coupling half includes a female valve and an inner body. The inner body is slidingly movable with respect to a housing or manifold. The female coupling half further includes a valve seated against a dump valve body which relieves pressure in the female half of the coupling to enable easy connection of the coupling halves. The male and female valves are locked in their open positions when the coupling halves are fully connected and the female half is pressurized which prevents reverse flow checking in either flow direction. During the disconnection process the male valve is closed before the coupling halves are separated which traps pressure in the male coupling half.

Abstract: The aim of the invention is to achieve secure and simple handling of an activation device, especially on a rapid-action reception coupling for transferring gas-liquids and/or liquids—liquids or on valves comprising a tubular housing (11, 29) and a slide (41), which is mounted in such a way that it is displaceable in relation to the housing. Said slide is connected to a lever mechanism (42), To this end, the invention provides that the lever mechanism (42) is positioned in a sliding ring (40), which is mounted in such a way that it is displaceable in relation to the housing (11, 29).

Abstract: A bag with a flexible wall which delimits a closed chamber of the bag for a store of a substance, for example a liquid, gaseous, pasty or pulverulent substance, for example a bag with a wall made from single-layer or multilayer (plastic) sheet material. A female element with a body through which a bore extends is attached to the inner side of the wall, which bore extends from an insertion opening for a male element, which is covered in a sealed manner by the wall of the bag, in the vicinity of the wall of the bag, to an opening in the chamber of the bag.

Abstract: An apparatus for adding fluid to a closed system can be connected to a service port of the system. The fluid can be added to the system by actuating valves on the system and on the fluid supply. The apparatus facilitates clean addition of the fluid to the system. The system can be a climate control system.

Abstract: A breakaway coupler for coupling upstream and downstream hose includes one or more locking balls carried by a downstream coupling member. An upstream flapper is pivotally secured with respect to an upstream housing. A pushrod is axially movable in response to engagement by the downstream coupling member. A pry recess on the downstream coupling member is spaced between the downstream housing g and the upstream housing, such that a tool inserted into the pry recess is leverageable to move the downstream coupling member to unlock the breakaway coupler.

Abstract: A refueling system for vehicles including a dual valve receiver connected in fluid communication with the fuel tank, and a jet sensor inside of the fuel tank and in fluid communication with the receiver. The refueling system further includes a relief valve vent in fluid communication with the fuel tank to vent the fuel tank and to relieve pressure that may otherwise build up inside the fuel tank during refueling. When refueling with an automatic shutoff nozzle, the sensor detects when a desired fuel level has been reached, and then informs the receiver to prevent fuel flow into the tank. When this occurs, the pressure inside the receiver and automatic shutoff nozzle increases, causing the nozzle to shut off automatically.

Abstract: A male coupling half includes a male valve and a male body and the female coupling half includes a female valve and an inner body. The inner body is slidingly movable with respect to a housing or manifold. The female coupling half further includes a valve seated against a dump valve body which relieves pressure in the female half of the coupling to enable easy connection of the coupling halves. The male and female valves are locked in their open positions when the coupling halves are fully connected and the female half is pressurized which prevents reverse flow checking in either flow direction. During the disconnection process the male valve is closed before the coupling halves are separated which traps pressure in the male coupling half.

Abstract: A fluid coupler is provided in which a male coupler is brought into a fixed connection condition in which the male coupler is fixedly connected to a female coupler member and retained at a fixed connection position relative to the female coupler member, the fixed connection condition being cancelled or broken when an excessive tension is applied to a fluid line in which the fluid coupler member is installed such that the tension acts on the male and female coupler members to separate them. A first valve is provided between and slidably engaged with the exterior surface of the male coupler member and the interior surface of the female coupler member. The first valve has a through hole having an outer end opening at an outer surface thereof and an inner end opening at the inner surface thereof to fluidly communicate with fluid passages of the male and female coupler members.

Abstract: Quick-action coupling of a flat design, comprising a sleeve-shaped component and a cylinder-shaped component, it being provided that a tube-shaped component, which is provided radially outside the sleeve-shaped component, is connected to the front side of a pipe connecting piece and the opposite end of the pipe connecting piece is connected to an end socket, which is connected to a collector for the hydraulic fluid and, in a chamber which is bounded by the tube-shaped component, there is provided an axially displaceable valve body, which is connected to a pipe body which extends in the longitudinal direction and ends in a tube-shaped component which has at its end openings which are arranged in the circumferential direction and receive arresting balls known per se.

Abstract: An apparatus for adding fluid to a closed system can be connected to a service port of the system. The fluid can be added to the system by actuating valves on the system and on the fluid supply. The apparatus facilitates clean addition of the fluid to the system. The system can be a climate control system.

Abstract: The present invention provides a pipe coupling socket that enjoys improved safety when connected to a plug. This socket comprises a socket body containing a ball valve and having locking elements at its distal end portion, a valve control sleeve fitted on the outer peripheral surface of the socket body for axial movement and capable of actuating the ball valve, a plug connecting sleeve fitted on the outer peripheral surface of the socket body for axial movement and capable of locking and unlocking the plug with the aid of the locking elements, first lock means which prevents the advance of the plug connecting sleeve, second lock means which prevents the retreat of the plug connecting sleeve and the advance of the valve control sleeve, and third lock means which prevents the retreat of the plug connecting sleeve and the valve control sleeve.

Abstract: There is disclosed a check valve for a tap of a gas or a liquefied gas cylinder comprising a valve body member axially movable in a housing bore. The body member has an axial bore opening out through one axial end of the valve body member and being in fluid communication with an annular space surrounding valve body member within the housing bore. The other axial end of the valve body member is closed and carries a primary seal ring gas tightly engaging an inner circumferential surface in the pore in the closed position of the check valve. There is provided a secondary seal ring at the first axial end of the valve body member.

Abstract: A connecting member (4) for a fast-fit safety coupling (1), having a tubular main member (10) connectable to a first conduit (2) for conducting pressurized fluid; a valve member (11) fitted inside the main member (10) to slide axially between a first work position separating the first conduit (2) in fluidtight manner from the outside, and an open second work position; first retaining means (18) for releasably connecting an endpiece (5) of a second conduit (3) to the valve member (11); second retaining means (17) for releasably connecting the valve member (11), in the second work position and connected to the endpiece (5), to the main member (10); and control means (70, 71, 72, 54) for disconnecting the connecting member (4) and the endpiece (5).

Abstract: The present invention relates to a device for blocking a liquid- and/or vapour-flow from a hose and positioning a hose rupture to a coupling in the hose, e.g.

Abstract: It has a fastening system (FIG. 1 ) of manual operation by a simple effort, being this system designed in order to disconnect the system in case of an internal increase of pressure occur protecting this way the rest of the system and the gas supply from this pressure increase. It also contains a retention valve (FIG. 2) to seal the steel container when disconnected. The relief valve (FIG. 3) placed inside the retention valve pin, purposes only to liberate the excess gas in order to have the pressure back to the standard safety level, being very important in case of accident and/or fire the relief valve pressure level is higher than the automatic disconnection pressure level in case the transmission system is in operation, this way first the fastening system is liberated and after the relief valve is liberated, but lower than the maximum test pressure of the steel container.

Abstract: A quick-connect coupling includes a male half and a female half, where the female half includes a locking mechanism to couple the male half to the female half; and a valve assembly, which when the male half is coupled to the female half, opens a flow path through the coupling. The valve assembly includes an upstream, pressure balanced secondary valve and a downstream primary valve. The secondary valve maintains the downstream portion of the female coupling half at zero pressure, such that the male half can be easily connected. When the male half is removed, the primary and secondary valves of the valve assembly close to prevent fluid flow through the coupling. The female coupling also allows pressure to escape from the downstream end of the female half to atmosphere, should there be leakage around seals in the secondary valve after the female coupling half is disconnected.

Abstract: A refrigerant charging tool. In a described embodiment, a refrigerant charging tool has two separately formed handles pivotably attached to each other. One of the handles has a container piercing member mounted thereon. Interchangeable spacers are configured for attachment to the other handle, so that a selected one of differently shaped containers may be biased against the container piercing member when the handles are pivoted toward each other.

Abstract: A service coupling for use with either a push-type or a screw-type port valve of a charge port is provided that includes a body portion and an axially moveable valve housing. Axial movement of an actuator permits both the selective axial movement of the valve housing from a rearward position toward a forward position and the selective disengagement of the port valve to open a flow path. In one embodiment the actuator has a nose portion that engages a threaded port valve, or axially moves a push-pin valve, to open a flow path. The operation is the same with either type of type of valve such that the user in not required to know which type of valve is present.

Abstract: A rotational two valve disconnect apparatus including a first rotational valve, a second rotational valve, and a rotational disconnect structure connected to the valves. The valves on the disconnect structure are constructed so that the disconnect can be engaged to flowably connect the first and second valve and disconnected to separably disconnect the first and second valves. The structure is further designed so that a single rotational movement will engage the disconnect structure and open the first and second valves or an opposite rotational movement may close the first and second valves and then disengage the disconnect structure. The preferred embodiment utilizes a single rotational axis for both the first and second valves and the disconnect structure. A further design advantage includes radial ports to allow for reduced operating requirement for the valve in high pressure environments.

Abstract: A non-refillable valve in a compressed gas cylinder to prevent the refilling of the cylinder after depletion of compressed gas initially in the cylinder. The non-refillable valve comprises a valve housing defining a valve chamber, with the valve chamber having a proximal end and a distal end. A valve core including a valve pin is coupled to the valve housing in the valve chamber. A detent formed in the valve housing extends into the valve chamber. A check ball is positioned in the valve chamber with the check ball movable from a first position past the detent to a second position, wherein the check ball is disposed against the ball seat at the distal end of the valve chamber forming a seal that prevents refilling of the cylinder.

Abstract: A coupling device for transferring fluid pressure from a first coupling element to a second coupling element is disclosed, wherein both coupling elements have end faces facing each other which can be moved against each other. Each coupling element comprises a cavity that runs into an opening at the end face and which may be coupled with the cavity of the other coupling element for transferring fluid. In each cavity, a piston is guided movably in axial direction, wherein both cavities have sealing surfaces facing toward the other coupling element that communicate with the opening of the end face and against which the respective piston can be moved with a counter surface for sealing. Each of both pistons is biased toward the other piston by a spring into a sealing position in which the piston rests with its counter surface against the sealing surface.

Abstract: A non-refillable valve in a compressed gas cylinder to prevent the refilling of the cylinder after depletion of compressed gas initially in the cylinder. The non-refillable valve comprises a valve housing defining a valve chamber, with the valve chamber having a proximal end and a distal end. A valve core including a valve pin is coupled to the valve housing in the valve chamber. A detent formed in the valve housing extends into the valve chamber. A check ball is positioned in the valve chamber with the check ball movable from a first position past the detent to a second position, wherein the check ball is disposed against the ball seat at the distal end of the valve chamber forming a seal that prevents refilling of the cylinder.

Abstract: Valve assembly for a container for beverage, in particular carbonated beverage such as beer, comprising a housing and a beverage channel with a valve body, wherein operating means are provided for moving the valve body, said operating means comprising: first coupling means for coupling the beverage channel to beverage dispensing means for emptying a container through or along the valve body; and second coupling means for coupling the beverage channel to a filling device for filling a container through or along the valve body.

Abstract: A quick connect coupling for use with a conduit having a free end with a bead is disclosed. The coupling includes an elongated tubular and cylindrical housing having a female end portion at one end and a male end portion at its other end. An axial passageway is formed through the housing and forms a fluid passageway connecting the female end to the male end. The housing, furthermore, includes a first part and a second part which are coaxially detachably secured together at a midpoint of the housing. A retainer positioned within the female end portion automatically lockingly engages the bead on the conduit upon insertion of the conduit into the female end portion on the first housing part. A one-way check valve is contained within the second housing part which enables fluid flow in a single direction through the fluid passageway.

Abstract: A service coupling is provided that includes a body portion and an axially moveable valve housing disposed in a central passageway of the body portion. The valve housing includes at least one pressure balancing passage extending therethrough and a service valve sealingly engaged within an inner cavity of the valve housing. An actuator moves the valve housing to a forward position that causes the service valve to abut a port valve of a refrigerant system inlet port and disengage the service valve from sealing engagement within the cavity to open a flow path. The axial movement of the valve housing to the forward position also creates a void between the valve housing and the body portion. The void is provided in communication with the flow path by the at least one pressure balancing passage, such that the refrigerant pressure is substantially balanced on either end of the valve housing.

Abstract: A gas tank on-off switch structure comprises a main body and a leakproof member which is structurally independent of the main body and is detachably fastened with the main body. The main body is connected with the interior of the gas tank. The leakproof member is formed of a fastening body, an elastic member, a plug, and a locating body. The fastening body is fastened with the main body and a gas pipe connector. The elastic element and the plug are located in the fastening body in conjunction with the locating body. The plug serves to prevent the gas leak in conjunction with the elastic element.

Abstract: A plug-in coupling (K) for connecting pipelines, tubes or the like, having a valve body (2) which is disposed in one of the two coupling parts (I, II) and can be actuated from the outside, in particular by a hand lever (1), and having a locking sleeve (9) which can be displaced from a locking position, in which the plugged-together position of the two coupling parts (I, II) is secured by spring loading, into a release position, and having a further valve body (7), which is disposed in the other coupling part (II), and, in order to achieve an operationally favorable/reliability solution, the invention proposes in the plugged-together position, the one valve body (2) brings about primarily opening of the other valve body (7) at the periphery.

Abstract: A volume compensator has a body with an axial chamber containing a piston assembly that is biased to one side by a spring. The compensator is coaxially mounted with a female coupler to a protective cover for a hydraulic interface plate. The female coupler has an axial bore containing a poppet assembly with an axial bleed port that extends into a receptacle on the end of the female coupler. The receptacle receives a male coupler on the interface plate. The male coupler contains a poppet assembly with a solid poppet that seals in high pressure hydraulic fluid. When the cover is secured to the interface plate, the male coupler is inserted into the receptacle and a small amount of sea water is trapped in between. The trapped sea water is forced through the bleed port and female coupler, and into the compensator where it displaces the piston and spring in the compensator. When the tips of poppets engage, high pressure hydraulic fluid is released into the female coupler and compensator where it is retained.

Abstract: A coupling device, having a simple structure, prevents leakage of fluid from an auxiliary valve in a female coupler. The coupling device seals fluid containing air in the female coupler, even in the pressure of the fluid remains or is as low as the ambient pressure level when the male coupler is separated from the female coupler. An annular seal, having integrally formed first and second annular seal elements, is provided in the female coupler. The first annular seal seals between a protruded cylindrical member of the male coupler and a mating cylindrical member of the female coupler. The second annular seal forms a valve body portion of the cylindrical member of the female coupler.

Abstract: A coupling half comprising: a body; a principal valve seating against the body and unseating therefrom; a relief valve seating against the principal valve and unseating therefrom; and, a flush face sliding sleeve valve seating against the body and unseating therefrom is disclosed. When the flush face sliding sleeve valve unseats from the body it travels toward the relief valve and engages the relief valve unseating the relief valve from the principal valve permitting flow by the relief valve and enabling the principal valve to unseat from the body. The relief valve and the principal valve define an annulus therebetween. The principal valve includes a passageway for relieving pressure by the relief valve. As the relief valve unseats from the principal valve, flow is permitted to the annulus defined by the relief valve and the principal valve and through the passageway in the principal valve and to a reservoir generally defined by the principal valve and the body.

Abstract: A ball detent fluid coupling for liquid and gas applications has a ball-retaining sleeve on the socket that is retractable by hand for joining and for separating the socket and plug and is characterized by a pressure-actuated check valve mounted on a valve guide within the flow path to preclude backflow into the supply side of the coupling. The valve also operates to shut off the flow when the mating parts of the coupling are disconnected or when flow through the coupling is shut off. A conventional valve can be mounted in the fluid flow passageway opposite the pressure-actuated check valve to urge the mating plug and socket to decouple when the sleeve releases the ball detents from engagement with the plug and to stop flow in the discharge line. The coupling will typically be used at pressures of from about 5 to 130 psig.

Abstract: A fluid nozzle (1) for dispensing high pressure fluids includes an outer sleeve, a nozzle inlet (3) for receiving a high pressure fluid and a nozzle outlet (4) for discharging the high pressure fluid, an inner pipe in fluid communication with the nozzle inlet and the nozzle outlet, a valve biased to close the fluid flow passage through the inner pipe, a piston (6), and a plurality of radially movable connecting jaws (5) positioned about the periphery of the outlet (4). The connecting jaws (5) have first ends engaging the piston (6) and second ends for engaging an inlet of a fluid receptacle (2). In the connected position, the pressure exerted by the fluid causes the connecting jaws (5), the piston (6), and the inner pipe to move axially relative to the outer sleeve and in turn causes the valve to open, permitting passage of the high pressure fluid through the nozzle.

Abstract: A service device connects to a service port of a pressurized system. The device includes a valve opening member for opening a valve within the port. The position of the valve opening member within the connector is adjustable or self-adjusting. The adjustable valve opening member allows the valve in the service port to be opened fully by the connector over a range of valve positions within the port. The device can attach to a service unit for servicing the pressurized system. The system can be an air conditioning or refrigeration system.