Abstract: A quick connector comprises a sleeving component and a sliding lock. The sleeving component comprises a stop part configured to stop the automatic moving of the sliding lock toward the interior of the sleeve component in the transverse direction when a fluid pipeline is inserted into the sleeving component, and release the stopping of the sliding block when the fluid pipeline is completely pushed into a main body of the sleeving component. The sliding lock further comprises at least one locking hook, and the locking hooks matches a locking catch arranged in the main body of the sleeving component. When a fluid pipeline is completely pushed into the main body of the sleeving component, the locking hooks moves around the locking catch and finally surrounds the locking catch.

Abstract: Aspects of the present disclosure relate to connection blocks and pump manifold systems, and related methods, for pumping operations (such as frac operations). In one implementation, a connection block for disposition along a pump manifold of a pump system includes a first end hub having a first tube and a first outer shoulder extending outwardly relative to the first tube. The connection block includes a second end hub opposing the first end hub. The second end hub has a second tube and a second outer shoulder extending outwardly relative to the second tube. The connection block includes one or more faces between the first end hub and the second end hub.

Abstract: A fitting includes a first and second threaded fitting component and a conduit gripping device receivable within the first threaded fitting component. A stroke resisting member is integral with the first threaded fitting component and includes a web having a first radial thickness and extending axially inward from the first threaded fitting component to a distal ring portion having a second radial thickness greater than the first radial thickness. A radially extending bearing surface of the distal ring portion axially engages a radially extending portion of the second fitting component when the first and second fitting components are joined together to the first relative axial position. The stroke resisting member resists additional axial stroke of the first and second fitting components, such that a tightening torque beyond the first relative axial position is increased by the axial engagement.

Abstract: A connector assembly and method of making a fluid-tight connection therewith is provided. The assembly includes a housing having a tubular wall bounding a bore extending between opposite first and second ends. The bore has first and second diameter portions with a shoulder extending radially therebetween. A covered portion of a channel extends from the housing second end toward the housing first end to an uncovered portion of the channel. A retainer is disposed in the bore. An indicator body, received in the channel, extends from the retainer outwardly to an indicator surface. A male connector has a tubular wall moveable in the bore between decoupled and coupled positions. A protrusion extends outwardly from the male connector tubular wall. The indicator surface is partially concealed within the covered portion of the channel when the male connector is in the decoupled position.

Abstract: A connection verifier, including a housing including a circuit board, a first plate connected to the circuit board, and a second plate connected to the circuit board, wherein the circuit board is arranged to send a voltage through one of the first plate and the second plate.

Abstract: A connector for connecting two fluid-conducting elements, in particular for connecting two motor vehicle pipelines, with a female plug-in part and a male plug-in part that can be plugged into the female plug-in part. The male plug-in part can be fixed on the female plug-in part via at least one fixing element. At least one indicator element is provided, which indicates the properly or completely fixed state of the male plug-in part which has been reached via the fixing element. When the male plug-in part is inserted into the female plug-in part, the indicator element is displaced outward in the radial direction. A radial outer position of the indicator element shows the properly fixed state of the male plug-in part on the female plug-in part.

Abstract: Quick connector having a coupling body and a multifunctional part with a retention unit and an indicator. The coupling body includes a head portion at one end and a plug-in portion at the other end, the plug-in portion configured for attaching to a first tube, the head portion having an axial opening for introduction of a counterpart with a circumferential collar. The head portion has at least one radial opening for inserting the multifunctional part, the multifunctional part having a back for manual operation for the purpose of being inserted into the coupling body. The retention unit has two retention legs, and the indicator has two indicator limbs movable independently of the retention legs when inserting the circumferential collar. The indicator limbs and the coupling body are configured so that the indicator can be transferred from a partially inserted preassembly position to a fully inserted assembly position via movement of the indicator limbs.

Abstract: A quick connector coupling for making a severable connection with a male member in a fluid line includes a connector body having a through bore for receiving the male member having a tubular shape sized to extend into the through bore of the connector body, a retainer releasably securing the male member within the connector body, and a verifier including at least one arm extending outside the connector body. Further, the verifier is coupled to the connector body and is moved to a latched position from an unlatched position when the male member is securely connected with the connector body. The connector body includes at least one verification element, which is at least partially covered by the at least one arm extending from the verifier in the unlatched position. The verification element of the connector body is uncovered and readable when the verifier is moved to the latched position.

Abstract: A fluidic connection device for a fluid circuit of a motor vehicle includes a female fluidic connector, a U-shaped lock, and a locking indicator. The female fluidic connector includes a housing configured to receive a male fluidic connector, by translation along an axis (A). The U-shaped lock is carried by the female connector and includes a pair of elastically deformable legs that arranged substantially in a first plane, perpendicular to the axis (A) and on either side of the axis (A) and being configured to cooperate by elastic snap-fitting with the male connector to ensure retention of the male connector in the female connector along the axis (A). The locking indicator is carried by the female connector and configured to be translated in a second plane, perpendicular to the axis (A), between a first position for releasing the locking indicator and a second position for locking the locking indicator.

Abstract: A system for quick connection between a female end piece provided with a U-shaped locking clip and a male end piece fitted therein, the wall of the female end piece having opposite slits through which the arms of the U-shaped locking clip protrude into the passage of the end piece and the wall of the male end piece having an outer groove lockably receiving the clip arms in a final fitted state of the male piece in the female piece, locked by the clip. Also included is a part forming a removable prestressing element for the clip with housing sites engaging the two free sections in a first resting configuration, and in at least a second prestressed configuration in which the arms are more separated than in the resting configuration but less than during the passage of the maximum outer section of the male end piece.

Abstract: A connector includes: a tube body formed in a tubular shape having a first opening and a second opening at both ends thereof, a first opening side of the tube body being connectable to an end of a first pipe, a second opening side of the tube body being connectable to an end of a second pipe, the tube body allowing a fluid to flow therethrough between the first opening and the second opening; a temperature detection element embedded in a tubular part of the tube body and configured to detect a temperature of the fluid flowing through the tube body; and a terminal electrically connected to the temperature detection element and exposed to outside of the tube body.

Abstract: A fitting assembly configured to visibly indicate nut tightness when coupling a first component to a second component is disclosed. The fitting assembly comprises a nut comprising a threaded portion and a chamber portion, wherein the chamber portion comprises one or more through-holes. The fitting assembly also comprises an indicator slidably disposed within the chamber portion, a retainer assembly disposed within the chamber portion and configured to interlock with an inner surface of the nut, and a spring disposed within the chamber portion between, and engaging, the indicator and the retainer assembly. The retainer assembly is configured to interface with the spring to retain the spring within the chamber portion. The fitting assembly is configured to receive the first component and the second component such that, when the nut is rotated, a visibility of the indicator through the one or more through-holes changes.

Abstract: A connection device for plastic pipe elements (1) which allows performing pre-assembly and being finally assembled without requiring skilled labor, having a pipe element (1) with at least one end, a plastic connection element (2) which is connected to an outer surface of the pipe element (1) through the end, which has a resistance wire (3) wound on the outer surface of the pipe element (1) itself.

Abstract: The application relates to a coupling element for connecting a first fluid-conducting line to a second fluid-conducting line. Here it is provided that an indicator device is mounted on a latching device and has a retaining element which can be elastically deflected in the radial direction relative to a guide element of the indicator device and which in a latched position engages in the latch receiving area and secures the indicator device in the axial direction by interacting with a main part and in a non-latched position lies outside the latch receiving area and releases the indicator device to move in the axial direction. The invention additionally relates to a coupling assembly.

Abstract: A high capacity universal connector for use in connecting tubular members and a method for sealing the tubular members is provided. First and second tubular members are provided which each have ends that are brought into face-to-face engagement by a connector. A metal sealing element seals against conical surfaces at the ends of the first and second tubular members and enables the entire surface of the end of one tubular member to be bought into engagement with the surface of the end of the other tubular member so as to improve the bending and compression capacity of the assembly comprising the tubular members and the metal sealing element. A metal sealing ring for use in this assembly is also provided, along with a gasket retention assembly.

Abstract: A pipe diameter reduction lock-down system utilizing movable panels that engage with a tubing hanger upon application of force to an outer radial face of said movable panels. The movable panels are secured to a bowl reducer that is configured to seat the tubing hanger to facilitate engagement of the movable panels to the tubing hanger. Conventional lockscrews are used to apply the necessary force to the movable panels. The movable panels are further coupled to a spring such that they disengage from the tubing hanger when the lockscrews are loosened.

Abstract: An improved quick connector with code verification is provided. The quick connector includes a connector body, a connector sleeve, and a sliding lock latch. The connector body includes a verification indicia on its outer surface, and the connector sleeve is movable over the connector body and includes an indicator window that aligns with the verification indicia. The sliding lock latch is moveable from an unlatched position to a latched position through transverse openings in the connector sleeve and the connector body. The sliding lock latch includes first and second wing elements to prevent clockwise and counter-clockwise rotation of the connector sleeve relative to the connector body. The sliding lock latch also includes a locking tab on its outer surface to prevent retraction of the connector sleeve from the connector body.

Abstract: A plug-type connector for media lines having a coupling part into which a plug part can be inserted. The plug part can be retainingly engaged in the coupling part by a retaining clip that has at least two pairs of spring arms. The clip can be premounted on the coupling part by latching of the spring arms. The clip is U-shaped wherein legs of the U-shape form the two pairs of spring arms, which pairs are arranged one behind the other in the longitudinal direction and are separated by a slot and are elastic in the radial and axial directions. The first pair of the spring arms interlockingly blocks the plug part against being pulling out of the coupling part, and the second pair of spring arms holds the retaining clip captively in the coupling part in pre-assembly and assembly positions.

Abstract: A coupling device is provided having a female coupling engageable with a male coupling and a ring interposable between the couplings and provided with retaining means. A gasket is housed in the female coupling and held in position by the ring. The retaining means axially holds the ring to the female coupling and has two windows spaced apart in the circumferential direction over the body of the ring. The complementary retaining means of the female coupling has two lugs projecting from the tubular body constituting the female coupling. Each window houses an elastically deformable tongue having its free end co-operating with a longitudinal edge of the window to provide a housing within which one of the lugs becomes inserted in the engaged state of the female coupling and of the ring, and the retaining means holds the ring to the male coupling having two through openings arranged in the body of the ring and a locking member.

Abstract: An insert for installation on an inner pipe member of a dual-pipe member assembly. The insert is interposed between an external shoulder formed on the inner pipe member and an internal shoulder formed in an outer pipe member. Shoulder-to-shoulder impacts between pipe members results in wear to the insert, rather than to either pipe member. The insert has the shape of an unclosed loop and is positioned within an endless external groove formed in the inner pipe member.

Abstract: A conduit for transporting a fluid comprises a first collar, a second collar, and a bellows. The bellows comprises a corrugated inboard ply, a corrugated outboard ply, and an interstitial space, interposed between the corrugated inboard ply and the corrugated outboard ply. The conduit additionally comprises a second weld, hermetically coupling the corrugated inboard ply and a first outer collar portion, a third weld, hermetically coupling the corrugated outboard ply and a first inner collar portion, a fourth weld, hermetically coupling the corrugated inboard ply and a second outer collar portion, a fifth weld, hermetically coupling the corrugated outboard ply and a second inner collar portion, and a first sensor, communicatively coupled with the interstitial space.

Abstract: A screw (20) assembly for an actuator (10) is described comprising: a screw (20); a nut (22) threaded on said screw (20), such that rotation of said screw (20) causes axial movement of said nut (22); a stop located at an end of said screw (20) and defining an axial limit of said nut (22); a first feature located on said nut (22); and a second feature located on said stop; wherein said first and second features are configured to cooperate with one another substantially upon contact of said nut (22) with said stop so as to indicate an amount of free movement between said nut (22) and said screw (20).

Abstract: A pipe connector includes: a housing in which an insertion hole is formed, a pipe being inserted into the insertion hole; at least one O-ring that forms a seal between an inner circumferential surface of the insertion hole and an outer circumferential surface of the pipe; a restricting member that is attached to the housing from an outer side in a radial direction of the pipe; and a restricting portion that is provided at the restricting member, wherein the restricting portion bends towards an opposite side from an insertion direction of the pipe when the restricting member is pressed from the outer side in the radial direction of the pipe towards an inner side thereof, and elastically returns so as to restrict movement of the at least one O-ring towards the opposite side from the insertion direction of the pipe when the restricting member has been attached to the housing completely.

Abstract: A coupling assembly for elongate elements (1, 2) comprises a pin member (5) and a box member (6), said pin and box members having complementary and respective frusto-conical pin and box mating surfaces (12, 13). A bore (9; 9?) has as a first opening a port (9a) configured for connection to an injection fluid reservoir (10) and a second opening (9b) penetrating the pin mating surface (12) or the box mating surface (13). The surfaces (12, 13) may be plain surfaces without helical threads or other pronounced protrusions configured for mating engagement, but comprise a textured finish in order to augment static friction between the surfaces (12, 13) when the surfaces are connected. The pin surface may comprise a plurality of pin protruding portions (181-n) separated by pin recessed portions (191-n), and the box surface (13) comprise a plurality of box protruding portions (201-n) separated by box recessed portions (211-n).

Abstract: A connector for a pneumatic circuit is provided. The connector includes a connector body in which an end portion of a tube is inserted and a sealing member disposed inside the connector body and maintaining sealing between the end portion of the tube and the connector body. An air vent aperture is formed through the connector body from an inner surface of the connector body to an outer surface of the connector body. When air that leaks from a gap between the connector body and the end portion of the tube inserted into the connector body flows into the air vent aperture and passes through the aperture, an edge tone alarm sound is generated.

Abstract: A conduit for transporting a fluid comprises a first collar, a second collar, and a bellows. The bellows comprises a first corrugated outboard ply, a corrugated inboard ply, an interstitial space, interposed between the corrugated inboard ply and the first corrugated outboard ply, and a second corrugated outboard ply within the interstitial space. The first corrugated outboard ply and the corrugated inboard ply are hermetically coupled to the first collar and the second collar. The conduit additionally comprises a first sensor, communicatively coupled with an interstitial space. The second corrugated outboard ply is not hermetically coupled to the first collar or the second collar.

Abstract: A conduit for transporting a fluid comprises a first collar, a second collar, and a bellows. The bellows comprises a corrugated inboard ply , a first corrugated outboard ply, an interstitial space, interposed between the corrugated inboard ply and the first corrugated outboard ply, and a second corrugated outboard ply within the interstitial space. The first corrugated outboard ply and the corrugated inboard ply are hermetically coupled to the first collar and the second collar. The conduit additionally comprises a first sensor, communicatively coupled with an interstitial space. The second corrugated outboard ply is not hermetically coupled to the first inner collar portion or the second inner collar portion.

Abstract: A conduit for transporting a fluid comprises a first collar, a second collar, and a bellows. The bellows comprises a corrugated inboard ply, a corrugated outboard ply, and an interstitial space, interposed between the corrugated inboard ply and the corrugated outboard ply. The conduit additionally comprises a first weld, hermetically coupling the corrugated inboard ply and a first outer collar portion, a second weld, hermetically coupling the corrugated outboard ply and a first inner collar portion, a third weld, hermetically coupling the corrugated inboard ply and a second outer collar portion, a fourth weld, hermetically coupling the corrugated outboard ply and a second inner collar portion, and a first sensor, communicatively coupled with the interstitial space.

Abstract: The invention pertains to a connecting element (1) for connecting a pipe end (2) to a component (3) of an air-conditioning system, wherein said connecting element comprises a base body (4) with a passage opening (5) for conveying through a refrigerant, a receptacle bore (6) for receiving the pipe end (2), wherein the receptacle bore (6) is arranged on a face side (7) of the base body (4) and corresponds to the passage bore (5), as well as a connection piece (8) that is arranged on the other face side (9) of the base body (4) and corresponds to the passage bore (5) on this side, wherein the connection piece (8) and the base body (4) consist of the same material and are realized in one piece, wherein at least one sealing element (12, 13) is arranged on the connection piece (8), and wherein the sealing element (12, 13) and the connection piece (8) are realized in one piece, as well as to a method for manufacturing such a connecting element.

Abstract: A gas turbine engine system includes a fuel delivery circuit configured to convey fuel, a combustion chamber configured to combust the fuel, and a flexible hose that fluidly connects the fuel delivery circuit to the combustion chamber. The flexible hose includes a combustion chamber connector portion attached to the combustion chamber, a fuel delivery circuit connector portion attached to the fuel delivery circuit, and a central flexible portion connecting the first connector portion to the second connector portion. The central flexible portion is made of a flexible material. In addition, the fuel delivery circuit connector portion includes a pivotal assembly with an adjustable end that is pivotal relative to a central longitudinal axis of the central flexible portion of the flexible hose when the central flexible portion is in a straight condition.

Abstract: A sealing sleeve with leakage detection has an absorbing layer and a sensor arrangement, wherein the absorbing layer is configured to be attached to a surface of an article containing a fluid, and hose assembly with a connector having a nipple and a socket, wherein an end of a hose is slipped on the nipple and the socket is adapted to establish a fluid tight connection of the hose and the nipple, wherein a sealing sleeve is attached at an intersection of the socket and the hose.

Abstract: A fitting for a fluid conduit includes a coupling body, a coupling nut, a conduit gripping device that is axially driven by the coupling body and the coupling nut to provide grip and seal against a conduit, and a strain sensor unit disposed on a neck portion of the coupling body, the strain sensor unit including at least a first axially extending strain sensor positioned and oriented for strain sensor unit measurement of a first strain of the neck portion corresponding with a first fitting assembly condition, and a second strain of the neck portion corresponding with a second fitting assembly condition different from the first fitting assembly condition.

Abstract: A rotary device includes a housing, a rotating machine component, a rotating member associated with the rotating machine component, a non-rotating member disposed within the housing adjacent the rotating member, and a sensor array disposed in the housing. The sensor array includes a plurality of sensing elements that are integrated with a control device and a wireless communication device. The wireless communication device is configured to communicate with a central control that is remotely located relative to the housing using electromagnetic waves.

Abstract: A pipe restraint assembly includes a restraint body configured to be removably attached to a portion of pipe. The portion of pipe is associated with a postulated pipe failure associated with a release of high pressure fluid. A plurality of apertures penetrate through the restraint body and are positioned proximate to a location of the postulated pipe failure. The apertures are configured to provide a number of passageways for the fluid to exit from the location of the postulated pipe failure and to be released outside of the restraint body. One or more restraint devices maintain the position of the apertures relative to the location of the postulated pipe failure.

Abstract: A quick connector of a fuel transfer line is provided to implement fuel blocking function upon abnormal fastening to a fuel inflow/outflow nipple disposed in a fuel transfer line of a vehicle and prevents fuel leakage due to incomplete fastening to the fuel inflow/outflow nipple. The quick connector is fastened to a fuel inflow/outflow nipple of a fuel transfer line and includes a connector casing that has a rear end to which a fuel inflow/outflow nipple is inserted and fastened. Additionally, a bypass cylinder is inserted into a front end of the connector casing in a linearly movable manner by hydraulic pressure of fuel and forms a flow path for a selective flow of fuel depending on a location within the connector casing.

Abstract: A fuel system component used to supply a fuel to a fuel tank or used to discharge the fuel from the fuel tank comprises a first resin layer; and a second resin layer formed in a similar color to that of the first resin layer and configured to include a welding portion that is welded to the first resin layer and an exposed portion that is not adjacent to or in contact with the first resin layer. A belt-like portion is formed on a first resin layer-side and conically shaped surface of the exposed portion of the second resin layer at a distance from a boundary between the welding portion and the exposed portion and is configured to include at least one of a concavity and a convexity extended intermittently or continuously.

Abstract: A fire hose coupling comprises a body having a first end connected to a fire hose and a second end having either male or female threads or, alternatively, a quarter-turn sexless coupler. The fire hose coupling comprises a recessed portion formed in an outer surface of the body. The recessed portion is shaped to define a visuotactile directional indicator such as an arrow. The recessed portion may include a light-reflecting surface to enhance visibility such as a super reflective metal film, a photo luminescent coating, or a phosfluorescent coating. The recessed directional indicator may be formed in female, male or sexless (Storz) couplings.

Abstract: A fitting for use in fusion welding mating thermoplastic components includes a weld bead chamber to capture and conceal a bead formed as a result of the fusion weld. The weld bead chamber integrates the bead into the fitting so that the joined parts have a finished look without mechanical polishing or grinding of the completed piece. A stop ledge included in the weld bead chamber prevents over insertion of a pipe or other component into the fitting. A view window in the fitting permits inspection of the finished bead.

Abstract: A connector for connecting a deformable bag for liquid or semi-liquid products to a machine for distributing the product and includes a body with an opening passing therethrough and acting as a product outlet and connected to the machine, with a thermal sensor supported so as to be positioned inside the bag, in contact with the liquid or semi-liquid product. The sensor is fixed in a second opening that is parallel or almost parallel to the product transit opening and a connecting cable comes out of the end of the body intended to remain outside the bag. The assembly formed by the bag and the connector and the machine for distributing a liquid or semi-liquid food product supplied with the bag equipped with the connector.

Abstract: A fitting for repairing a leaking polymer pipe is provided. The fitting includes a first housing and a second housing that are sized to fit about the pipe. The first housing includes a first coil configured to increase in temperature in response to the application of an electrical current to fuse the first housing to the second housing and the pipe. The second housing includes a second coil on a first end and a third coil on an opposing end. The second and third coils configured to increase in temperature in response to the application of electrical current to fuse the second housing to the pipe. The fitting further includes a first seal coupled to the first housing and a second seal coupled to the second housing. The first and second seal forming a seal that prevents gas pressure from the pipe from interrupting the fusion process.

Abstract: A connector assembly and method of making and ensuring a reliable, fluid-tight connection, the assembly includes a housing a having a wall bounding a bore extending along a central longitudinal axis. The wall has a locking opening, a slot, and a window. A retaining member has a cylindrical wall received in the bore of the housing. The cylindrical wall has a detent received in the locking opening and a locking arm cantilevered by a hinge connection for pivotal movement. The locking arm is spaced from the cylindrical wall by a gap and is received in the slot when the detent is received in the locking opening. A visual indicator attached to the cylindrical wall moves radially outwardly into the window in response to the collar being fully received in the gap to provide visual evidence of a fluid-tight seal between the insertion member and the housing.

Abstract: A press fitting, including a tubular component and an end portion of the tubular component which can be compressed to make a connection. The end portion has an opening to receive a tube and a first region having an annular ridge to receive a sealing ring. A second region is arranged on the side of the ridge adjacent the opening and a third region is arranged on the side of the ridge remote from the opening. The overall wall thickness of the press fitting in the second region is increased at least in a section or sections in comparison with the wall thickness of the tubular component in the third region.

Abstract: A quick connect coupling having a housing with a throughbore to receive a tube. A verifier is mounted to the housing which nests in the housing when the coupling is fluidly connected. Otherwise, the verifier protrudes outwardly from the housing to provide an indication that the coupling is not fully connected.

Abstract: A conduit fitting of the type having first and second threaded fitting components and at least one conduit gripping device, further includes a stroke limiting member that allows the fitting to be pulled up by applying a predetermined torque. In one embodiment, the stroke limiting member may be a non-integral torque collar and in another embodiment the stroke limiting member may be two engaging surfaces integrally formed with the fitting components. Alternatively, the fitting may also be pulled up by turns. In still another embodiment, a stroke limiting member is provided that may be used to enable a fitting that is designed to be pulled up by turns to also be pulled up by torque. The stroke limiting member facilitates many remakes of the fitting, including remakes by torque.

Abstract: A fire hose coupling comprises a body having a first end connected to a fire hose and a second end having either male or female threads or, alternatively, a quarter-turn sexless coupler. The fire hose coupling comprises a recessed portion formed in an outer surface of the body. The recessed portion is shaped to define a visuotactile directional indicator such as an arrow. The recessed portion may include a light-reflecting surface to enhance visibility such as a super reflective metal film, a photo luminescent coating, or a phosfluorescent coating. The recessed directional indicator may be formed in female, male or sexless (Storz) couplings.

Abstract: A coupling device for releasably connecting fluid-carrying duct ends of ducts is provided. The duct ends, respectively, each carry a jacket having at least two annular ribs housing a first annular sealing element. The first annular sealing element is engaged by the inner shell. The coupling device includes an outer shell that has radially inward extending ribs or rib portions, which are either arranged in an axial distance with respect to a further annular rib of the jackets or engage an axial recess provided on the jackets defined between the further annular rib and a fourth annular rib.

Abstract: A fitting is provided that may optionally be pulled-up to its final assembled condition by torque rather than by turns. In one embodiment, at least one fitting component includes a structure that facilitates pull-up by torque. The structure may take a wide variety of different forms.

Abstract: Luer connector including a primary Luer male connector, having a secondary female section extending from a top distal part of the primary Luer male connector back towards a proximal part thereof, the primary Luer male connector including a first inner fluid flow channel extending from a proximal end thereof to the secondary female section, the primary Luer male connector being configured to mate with a primary Luer female connector having a secondary male section including a second inner fluid flow channel.

Abstract: A method for sealing a membrane module by introducing a seal or a sealing mass between a head plate holding a tube bundle and a mounting ring holding the head plate. Alternatively, a sealing mass containing quartz sand is proposed for sealing cracks in the head plate.

Abstract: A pipe connector includes a connector body, a retainer having a pair of locking legs and a release operation portion, and a checker. The connector body has an insertion hole into which a pipe is insertable. The locking legs are deformable to be spread and closed and are moved into the insertion hole. The release operation portion being operable to displace the locking legs in a direction such that the pipe is releasable from a retained state. The checker is formed separately from the retainer and lockable to the connector body and releasable from a locked state to be movable to a detection position when the pipe is inserted into the insertion hole. The checker is formed with pressing pieces located rearward relative to the locking legs when the checker assumes the detection position, to thereby prevent the locking legs from being flexed rearward.