Abstract: A double pipe forms an inner flow path, through which a low-pressure side refrigerant flows, inside an inner pipe, and forms an inner-outer flow path, through which a high-pressure side refrigerant flows, between the outer pipe and the inner pipe. It comprises an expansion valve side connector and a counter-expansion valve side connector which are interposed between distal ends of the outer pipe and the inner pipe and members to be connected. An outer diameter of the outer pipe is 30 millimeters or less. A ratio of a difference between an inner diameter of the outer pipe and an outer diameter of the inner pipe with respect to the inner diameter of the outer pipe is 25% or less. A sealing member is provided to prevent a refrigerant leakage. The plurality of members are mechanically fixed.

Abstract: A quick connector assembly for making a severable connection in a fluid line includes a connector body and a lock cover. The connector body has a through bore along a longitudinal axis and further includes a retainer that is engaged with the connector body for securing a male member and a bead checker that is sized and position to be laterally moved outwardly from the longitudinal axis. The lock cover releasably engages with the connector body and includes a verifier for verifying whether the male member is fully inserted into the connector body. Accordingly, the quick connector assembly is securely coupled with the male member having an annular bead as a quick connector coupling.

Abstract: A screen cover for attaching to an open end of a conduit of a water heater is provided. The screen cover includes a first diametric portion having a first diameter and a second diametric portion having a second diameter. The first diameter is greater than the second diameter. The first and second diametric portions are coaxially aligned and configured to allow flow of air or gas therethrough. The screen cover includes a shoulder portion defined between the first diametric portion and the second diametric portion. The screen cover further includes a mesh disposed at a first opening of the first diametric portion. The mesh prevents entry of external objects into the water heater through the open end of the conduit.

Abstract: A press fitting device, components and method provide one or more indicators to provide a visual indication that the fitting has been properly pressed around a tube and that the correct amount of pressure has been provided to create a permanent seal. In embodiments, a sealing ring is retained within an indentation of a main body component of the fitting and the sealing ring is expandable upon compression to be visible through an opening in the main body component.

Abstract: Some fluid coupling devices described herein are configured for use in fluid systems for purposes of providing a single-use, disconnection functionality that can substantially limit fluid spillage when being disconnected. In some embodiments, the coupling portions cannot be functionally reconnected to each other after being disconnected from each other.

Abstract: A pipe connection used in corrugated pipe includes a male/female connection that is configured to accommodate movement of the male connector in the female connector after installation of the pipe. The ability to maintain a satisfactory pipe connection throughout a desired and designed range of movement is helpful in applications where the pipe may be exposed to changing conditions such as ground settling, ground shifting, earthquake or other conditions. The male connector and the female connector for receiving the male connector are oversized to allow additional insertion of the male connector or partial withdrawal of the male connector while maintaining the pipe connection throughout the range of movement. The pipe connection can also be used to provide an effective two stage male/female connection between reinforced plastic pipe sections.

Abstract: A coupler including a tubular conduit having a length disposed between a first end and a second end and a thickness disposed between an external surface and internal surface defining an interior passage and including one or more of an external annular groove disposed in the external surface overlaying an internal annular member disposed on the internal surface, and one or more external annular members disposed on the external surface correspondingly overlaying one or more internal annular grooves disposed in said internal surface.

Abstract: Disclosed are various embodiments for facilitating the installation of a toilet over a closet collar for a drain pipe. According to various embodiments, a toilet seal assembly is positioned between the toilet and the closet collar, providing a seal between the toilet and the flange of the closet collar. The toilet seal assembly may include a flexible rubber seal and a compressible foam seal ring. The flexible rubber seal may include an annular wall, an upper ring that extends radially inward from the annular wall, and a lower ring that extends radially outward from the annular wall. The compressible foam seal ring may be disposed on the lower ring of the flexible rubber seal.

Abstract: A collar assembly comprising a collar comprising a duct receiving portion, a first seal positioned on an outer surface of the collar and a second seal positioned on an inner surface of the collar, wherein the collar comprises a plurality of collar portions sealingly connectable to one another to form the collar.

Abstract: A coupling fitting comprises a pipeline and a connector sleeve. The pipeline and connector sleeve are each separate parts and are fixedly and non-detachably connected to one another by a connecting ring which can be produced in situ by injection molding plastics material. The invention is also directed to a method for making the coupling fitting.

Abstract: A component includes an additively manufactured component with an internal passage and an additively manufactured elongated member within the internal passage. A method of additively manufacturing a component including additively manufacturing a component with an internal passage; and additively manufacturing an elongated member within the internal passage concurrent with additively manufacturing the component.

Abstract: A connection arrangement includes a first connection body and a second connection body for forming a pneumatic connection along a connection axis, and a sealing element configured to seal a sealing gap which surrounds the pneumatic connection and which has a longitudinal dimension which extends parallel to the connection axis. A pneumatic flow is able to travel through the first and second connection bodies along the connection axis. The first connection body has a through-hole having a cross section transverse to the connection axis. The second connection body is arranged at least partially in the through-hole. An at least partially circumferential first recess transverse to the connection axis is formed on an outer face of the first connection body extending parallel to the connection axis for receiving the sealing element.

Abstract: Processes and systems for preparing pipe for machine processing to form pin and box ends for assembly into pipelines or to assemble pipe sections in pipelines using mechanical press-fit pipe joints in which hydraulic pressure and linear displacement parameters, respectively P and L, are fully measured and documented during both manufacturing and assembly. Installed pipelines include pipeline data monitoring systems coupled to a pipeline data management center for receiving, archiving, and analysis of the data records to aid in administration, operation and management, and troubleshooting of pipelines.

Abstract: Processes and systems for preparing pipe for machine processing to form pin and box ends for assembly into pipelines using mechanical press-fit pipe joints that are fully measured and documented during both manufacturing and assembly. Installed pipelines include pipeline data monitoring systems coupled to a pipeline data management center for receiving, archiving, and analysis of the data records to aid in administration, operation and management, and troubleshooting of pipelines.

Abstract: A connection device of a female pipe and a male pipe, with a head which is configured to be accommodated in a receptacle of the female pipe, and comprising a peripheral groove in which a seal is accommodated. The male pipe comprises at least one extension which is configured to limit the pivoting of the male pipe around an axis of rotation which is perpendicular to the longitudinal axis of the female pipe. This configuration makes it possible to limit the risks of damaging the seal.

Abstract: A gasket for preventing the separation of a pipe joint formed between plastic pipes such as pipes manufactured from PVC. The invention provides a restrained pipe joint including a first pipe including a bell with a spigot entryway and a substantially V-shaped annular groove. The annular groove includes a front radial wall and a rear radial wall and a gasket seated in the annular groove. The gasket includes an inner radial face, an opening defined by the inner radial face and an outer radial face with a front radial section located adjacent to the front radial wall of the annular groove and a rear radial section located adjacent to the rear radial wall of the annular groove. A plurality of restraining segments is at least partially embedded in the gasket, each restraining segment including a toothed inner face and a smooth, sliding front radial face arranged to slide against the front radial wall of the annular groove and facilitate wedging of the segment between the plastic pipes.

Abstract: The present disclosure generally relates to improved water closet flanges and methods for installing such water closet flanges. In one exemplary embodiment, an improved water closet flange apparatus includes an outer flange and a flexible conduit portion (i.e. sleeve) extending downwardly therefrom. The flexible sleeve has a sufficient degree of flexibility to accommodate connection between offset, misaligned, angled, or otherwise incongruous plumbing fixture discharges and waste drain pipe outlets. In one embodiment, the flexible sleeve includes at least one corrugated portion to aid the desired flexibility. An upper portion of the flexible sleeve may include an inwardly extending lip portion to accommodate the desired seal between the plumbing fixture discharge and the flange apparatus. Related methods for installing the disclosed flange apparatus between plumbing fixture discharges and waste drainpipes are also described.

Abstract: A conduit assembly and method of utilizing the assembly generally extends along a centerline for detachable engagement to a component in an axial direction. The assembly may include a body having an internal, cylindrical, surface with a first surface portion located axially adjacent to a second surface portion. The first portion is circumferentially continuous and the second portion extends circumferentially by about 180 degrees or less. A saddle is axially aligned to the second portion and detachably connects to the body. The saddle extends circumferentially by about 180 degrees or more. A conduit is received in the body and rigidly secured to the body via the saddle. A circumferentially continuous sealing interface is carried between the first portion and the conduit, and is constructed and arranged to slide axially with respect to the first portion and the conduit.

Abstract: A cylindrical gasket includes a reinforcing member 70, a heat-resistant material 71, and pores which are dispersedly distributed in the reinforcing member 70 and the heat-resistant material 71, the reinforcing member 70 and the heat-resistant material 71 are intertwined with each other so as to be provided with structural integrity, and with respect to a total volume of the cylindrical gasket, the reinforcing member 70 occupies a volume of 32 to 60%, the heat-resistant material 71 occupies a volume of 5 to 58%, and the pores occupy a volume of 10 to 35%.

Abstract: A seal member for sealingly securing a first and a second pipe at a crimp connection, the seal member including a ring-shaped body having an outer diameter and an inner diameter. A plurality of protrusions are formed on the ring-shaped body and extend radially outwardly from the outer diameter. The ring-shaped body permits fluid to pass around adjacent protrusions prior to attaining the crimp connection and inhibits fluid from passing therearound subsequent to attaining the crimp connection.

Abstract: Coupling arrangements and connectors for establishing a substantially fluid-tight removable connection between a fluid port in a medical device such as an endoscope. Various embodiments of the connectors may be coupled to a fluid conduit that may be attached to a decontamination or reprocessing device used to flow fluid through corresponding channels in the medical device during the decontamination process.

Abstract: A steering column has an overall hollow and cylindrical shape at least part of which is formed using a column member. The column member includes a main body portion having one-side end section and the other-side end section and a cylindrical member having one-side end section and the other-side section. The cylindrical member is joined in the axial direction with respect to the main body portion by fitting and fastening the other-side end section of the cylindrical member inside the one-side end section of the main body portion. The inner diameter of the end surface of the other-side end section of the cylindrical member is smaller than the inner diameter of a portion of the other-side end section of the cylindrical member. The portion of the other end section of the cylindrical member constitutes a joined section between the main body and the cylindrical member.

Abstract: A pipe coupling for a central vacuum cleaning pipeline is adapted to be connected with at least one pipe to form a central vacuum cleaning pipe line. The pipe coupling comprises at least a first and a second opening defined by an envelope wall, the envelope wall comprises an inner and an outer surface, wherein at least said first opening is arranged to receive a pipe introduced into the first opening along a first insertion and retraction direction, so that the pipe coupling overlaps the pipe with a part of the inner surface of the pipe coupling at an attachment section. The attachment section comprises in turn an annular seal member arranged in the attachment section to effectively seal between the inner surface of the pipe coupling and the outer surface of said pipe. The attachment section further comprises an annular recess which defines a stop surface. The annular recess is configured to form a smooth transition between the pipe and the pipe coupling.

Abstract: An O-ring has a flange which includes a plurality of slots, such that, when inserted into an annular groove of a pipe fitting before crimping, the slots allow the flow of fluid therethrough, such that an installation would not pass pressure tests until such time as a proper crimp has been made. Such a design allows the use of conventional push-on pipe connections by utilizing a unique O-ring seal which works in conjunction with standard push-on crimp-type pipe fittings and conventional crimping tools for subsequently sealing the connection. The O-ring is either circular or elliptical in cross section and the slots define equally spaced annular segments.

Abstract: A connection for the fluid connection of at least one first fluid-conducting, medical-technical system to a second one, a method for connecting at least two fluid-conducting, medical-technical systems, as well as an external medical-technical apparatus and a medical-technical apparatus are described.

Abstract: A composite sliding gasket for joints of high-pressure pipes is basically formed by a rubber part and by a rigid ring—having the function of flange—that is designed to draw the gasket itself from a resting position or seat to a working position or seat by an external pipe or hole that is axially fitted on an internal pipe or barbed fitting. Compression of the rubber part of the gasket, which guarantees fluid tightness, is obtained thanks to the presence of a purposely provided conical area pre-arranged on the barbed fitting between the resting seat and the working seat. The gasket includes a rubber ring fixedly coupled to a coaxial flange made of rigid material of plastic or metal or other suitable material, the gasket being designed to seal a coupling with play between the internal pipe and the hole within which a pressurized fluid can flow.

Abstract: A conduit coupling system for use with a spigot includes a bell and a sealing device. The bell is adapted to mate with the spigot. The bell includes a first end and a second end. The bell has a concave annular inner surface and a diameter of the annular inner surface adjacent to the first end of the bell is greater than a diameter of the annular inner surface adjacent to the second end of the bell. The sealing device includes a locking segment including a convex outer surface and a K-type gasket coupled to a locking segment or a non-restraining anti-extrusion segment. The sealing device is adapted to fit between the bell and the spigot.

Abstract: An expansion assembly includes a connecting plug, a deformable sealing sleeve, and an expansion sleeve. The connecting plug defines a through hole configured for air flow to pass therethrough. The deformable sealing sleeve is sleeved on the connecting plug. The expansion sleeve houses the deformable sealing sleeve and is sleeved on the connecting plug. The expansion sleeve comprises a number of resilient arms separated from each other. When airflow is introduced into the deformable sealing sleeve via the connecting plug, the deformable sealing sleeve is expanded, causing the number of resilient arms of the expansion sleeve to expand outward. A positioning mechanism employing the expansion assembly is also disclosed.

Abstract: One aspect of the invention provides a bushing including a first annular internal rib adapted and configured to engage a corrugation valley of corrugated tubing and a second annular internal rib adapted and configured to press against a conductive layer surrounding the corrugated tubing. The second annular internal protrusion has a rounded, substantially non-piercing profile. Another aspect of the invention provides a sealing device for connecting a length of tubing. The sealing device includes a body member defining a sleeve portion and the bushing as described herein adapted and configured to be received in the sleeve portion. Another aspect of the invention provides a length of tubing including: an inner tubing layer and the fitting as described herein engaged with the inner tubing layer.

Abstract: Gaskets for use with a bell and spigot coupling system are disclosed herein. The gasket comprises an elastomeric member having a front edge, a first section, and a second section. Axial forces generated by the insertion of the spigot to the first section of the elastomeric member displace the first section of the elastomeric member in an axial and radial direction.

Abstract: A fitting for plumbing systems, such as drain/waste/ventilation (DWV) systems that is chemically and mechanically joinable is described. A socket of the fitting has an interior surface configured for chemically joining with tubing. An exterior surface of the socket includes a plurality of projections extending radially outward therefrom. A collar that includes a sidewall with a plurality of bayonet-style channels configured to engage respective projections is provided. Interaction of the projections with the channels during rotation of the collar with respect to the fitting draws the collar toward the fitting and compresses an O-ring between the collar, socket, and tubing inserted therein to form a fluid-tight seal and/or mechanically couple the tubing in the socket. The collar may include longitudinally depending flanges that are depressed against the tubing by a compression ring to mechanically couple the tubing in the socket.

Abstract: A coupling for multi-wall, corrugated pipe, the pipe including a corrugated wall having a plurality of primary corrugations, is disclosed. The coupling includes a first pipe section having disposed at one end a bell portion, the bell portion having a bell portion of corrugated wall and an outer wall; a second pipe section having disposed at one end a spigot portion, the spigot portion having a spigot portion of corrugated wall between an inner wall and an outer wall; and a gasket disposed in a groove extending around a circumference of the spigot portion and engaged between the bell portion of corrugated wall and the spigot portion of corrugated wall. A multi-wall, corrugated pipe section, and method for assembling a plurality of multi-wall, corrugated pipe sections, are also disclosed.

Abstract: A coupling for multi-wall, corrugated pipe, the pipe including a corrugated wall having a plurality of primary corrugations, is disclosed. The coupling includes a first pipe section having disposed at one end a bell portion, the bell portion having a portion of the corrugated wall and an outer wall; a second pipe section having disposed at one end a spigot portion, the spigot portion having a portion of the corrugated wall between an inner wall and an outer wall; and a gasket engaged between the corrugated wall of the bell portion and the outer wall of the spigot portion. A multi-wall, corrugated pipe section, and method for assembling a plurality of multi-wall, corrugated pipe sections, are also disclosed.

Abstract: Embodiments of the invention provide a suspension system for supporting an enclosure. The system includes a compression fitting that couples an enclosure mounting assembly to a hollow connector tube and provides a substantially sealed pathway between the enclosure mounting assembly to the hollow connector tube. The compression fitting includes at least one coupling body and at least one compression nut. The compression nuts are tightened around portions of the coupling bodies to secure end portions of the enclosure mounting assembly and the hollow connector tube within the coupling bodies.

Abstract: A crankcase ventilation for an internal combustion engine with a ventilation conduit which connects the crankcase of the internal combustion engine to an intake duct of the internal combustion engine, as well as a tank ventilation conduit and a connection system for a fluid conduit.

Abstract: An annular sealing material seals a pipe joint between a socket and a spigot. The sealing material includes a bulb part which is composed of a first bulb, a second bulb located closer to the inner side of the socket than the first bulb, and a narrow part present between the first and second bulbs. The first bulb is pressed against the inner circumferential surface of the socket. The second bulb is pressed against the outer peripheral surface of the spigot. The second bulb is inclined towards the pipe center from the first bulb in a natural state before it is provided between the socket and the spigot. The inner diameter of the second bulb is smaller than the outer diameter of the spigot in the natural state. The second bulb is extensible in the pipe diameter direction due to elastic deformation of the narrow part.

Abstract: This practical patent product relates to a pipe coupling, namely, a PVC-coated and adaptive pipe coupling. Its construction consists of male port and female port for interfacing purpose. The female port is configured with gasket-inserting groove. The gasket and male port are jointed through excessive interfacing. Compared with available technology, the practical patent product features simple construction, easy installation, firm connection and no damage to the coating layer thereof.

Abstract: A probe seal for a female hydraulic coupling member has both internal and external pressure-energized seals. The outer wall or opposing ends of the seal have one or more pressure-energized seals for sealing between the body of the probe seal and the body of a coupling member in which the probe seal is installed. Annular, L-shaped, T-shaped or angled grooves in the inner wall of the seal form cavities and sealing projections that can be urged in an inward, radial direction by fluid pressure within an associated cavity to increase the sealing effectiveness between the body of the seal and the probe of a male hydraulic coupling member inserted in the receiving chamber of the female coupling member.

Abstract: A hollow conduit is provided. In another aspect, a quick connector, suitable to carry fluid therethrough, is made of layers of material, a light curable material and/or multiple built-up materials. Another aspect uses a three-dimensional printing machine to emit material from an ink jet printing head to build up a conduit.

Abstract: A pipe joint for plastic pipe includes a bell member and a spigot member. The bell member includes a tubular plastic body wall having a metal reinforcement ring. The spigot member, which is insertable into the bell member, includes a tubular plastic body wall having an internal surface and an external surface and a longitudinal axis and metal reinforcement encased within the tubular plastic body wall. A plurality of plastic ribs extend from the external surface of the tubular plastic body wall and form a gasket channel.

Abstract: An annular sealing material seals a pipe joint between a socket and a spigot. The sealing material includes a bulb part which is composed of a first bulb, a second bulb located closer to the inner side of the socket than the first bulb, and a narrow part present between the first and second bulbs. The first bulb is pressed against the inner circumferential surface of the socket. The second bulb is pressed against the outer peripheral surface of the spigot. The second bulb is inclined towards the pipe center from the first bulb in a natural state before it is provided between the socket and the spigot. The inner diameter of the second bulb is smaller than the outer diameter of the spigot in the natural state. The second bulb is extensible in the pipe diameter direction due to elastic deformation of the narrow part.

Abstract: A press fitting comprises a socket defining at one end an opening for insertion of an end of a tube, a sealing ring within the socket, and a gripping ring within the socket, arranged in front of the sealing ring in the direction of insertion of the tube, wherein the gripping ring is provided with at least two weakening features, in particular in the form of notches, being reducible in size by deforming the gripping ring when applying a pressing action on the socket such that an inner diameter D2 of the gripping ring is reduced. A joint assembly may comprise such a press fitting having a tube inserted therein.

Abstract: Attachable and detachable joints for use in pipe systems carrying pressured fluids are made using thermoplastics, preferably polyolefin, and provided with an integrally formed male spigot end and a female socket end. The joints are constructed using a push-fit principle. A sealing ring is inserted into the sealing groove of the female socket making the joint leak proof. Plastic or metal clamps are provided to sustain the longitudinal forces imposed on the joint exerted by the pressured fluid. The male spigot is provided with an integrally formed collar that serves as the holding surface to clamp resisting longitudinal forces.

Abstract: An annular sealing material seals a pipe joint between a socket and a spigot. The sealing material includes a bulb part which is composed of a first bulb, a second bulb located closer to the inner side of the socket than the first bulb, and a narrow part present between the first and second bulbs. The first bulb is pressed against the inner circumferential surface of the socket. The second bulb is pressed against the outer peripheral surface of the spigot. The second bulb is inclined towards the pipe center from the first bulb in a natural state before it is provided between the socket and the spigot. The inner diameter of the second bulb is smaller than the outer diameter of the spigot in the natural state. The second bulb is extensible in the pipe diameter direction due to elastic deformation of the narrow part.

Abstract: In a cylindrical gasket 23, a heat-resistant material 1 made from expanded graphite and a reinforcing member 2 made from a metal wire net are provided with structural integrity by being compressed and intertwined with each other. A cylindrical inner peripheral surface 19, a cylindrical outer peripheral surface 20, and axial annular end faces 21 and 22 which are exposed on the cylindrical gasket 23 are each formed by a surface where a surface constituted of the heat-resistant material 1 and a surface constituted of the reinforcing member 2 are present in mixed form, and in the cylindrical gasket 23, the density of the heat-resistant material 1 is in the range of 1.21 to 1.58 Mg/m3, and the mass of the reinforcing member 2 occupies 50 to 80% of the total mass of the cylindrical gasket 23.

Abstract: The apparatus comprises a first sector wherethrough is introduced the biaxially oriented pipe and the gasket, a second sector, with diameter greater than that of the first sector, and a third sector, concentric to the second sector. The first sector is formed by at least three segments separated by isolating washers, so that at least two of said segments of the first sector, the second sector and the third sector are connected to means of heating and/or means of cooling regulated by a control unit which allows the selective and independent variation of the temperature of said segments and sectors and therefore of the pipe to favour the modelling of the socket with the integral gasket avoiding the disorientation of the pipe.

Abstract: Gaskets for use with a bell and spigot coupling system are disclosed herein. The gasket comprises an elastomeric member having a front edge, a first section, and a second section. Axial forces generated by the insertion of the spigot to the first section of the elastomeric member displace the first section of the elastomeric member in an axial and radial direction.

Abstract: A method and apparatus for a Boiling Water Reactor (BWR) jet pump slip joint internal seal for an interface between an inlet mixer and a diffuser of a jet pump assembly. The internal seal effectively mitigates leakage and slip joint flow induced vibration (FIV) between the inlet mixer and diffuser to reduce damage to many of the jet pump assembly components. A metallic seal of the slip joint internal seal flares out to conform the internal seal to a range of gap sizes, and compresses or springs back to nominal dimensions as thermal expansion and contraction occurs. The internal seal is self-expanding/self-tightening, as the internal seal flares further outward as a result of the internal pressure caused by flowing fluids in an operating jet pump assembly.

Abstract: An assembly having a fitting body, a structure, a first seal element, and a grip ring. The fitting body has an insertion end that includes a mount and an abutting wall. The structure has an end that is received into the insertion end of the fitting body. The first seal element is received in the mount and sealingly engaged to the structure and the fitting body. The grip ring is received in the mount and includes a ring body and a plurality of first teeth that are resiliently coupled to a ring body. The first teeth are engaged to the end of the structure and the ring body abuts the abutting wall.

Abstract: A fuel line assembly for an aircraft comprises a ferrule assembly comprising a ferrule affixed to an isolation tube, which may be directly affixed to a fuel tube or affixed to an extension tube, which in turn, is affixed to the fuel tube. The ferrule assembly provides electrostatic discharge protection and lightning protection as the isolation tube maintains a separation distance from the ferrule and fuel tube, both of which are made from metal. The isolation tube is made from a dielectric material, but which may have conductive particles added to aid in the dissipation of an electrostatic charge. The electrical resistance through the isolation tube has a lower limit to arrest the flow of the induced lightning current through the assembly. The amount of lightning protection afforded can be configured. The ferrule assembly components may be affixed by using thermo-welding, adhesive, or mechanical pressure.