Abstract: A hose coupling is provided, which is of sleeve-shaped form and which, at at least one coupling end, has a connector with a retention profiling provided on the outer circumference at least in one connector subregion, onto which coupling end a hose end of a flexible hose can be pushed. The retention profiling is formed by at least one retention groove, which is provided on the outer circumference of the connector and which has groove long sides oriented in the connector circumferential direction and groove narrow sides oriented in the connector longitudinal direction. The at least one retention groove has a groove base which is of flat form.

Abstract: A pipe joint includes a soft pipe, a hard pipe and a sleeve. The hard pipe includes an insert portion inserted into an inside of the soft pipe from an end portion of the soft pipe. The sleeve is arranged radially outside of the insert portion and the soft pipe, and presses the soft pipe toward the insert portion. The insert portion includes a corrugated surface, which is arranged on an outer surface of the insert portion, and a column surface, which is arranged on the outer surface at a tip side of the insert portion. The sleeve includes a first small diameter portion, which is arranged radially outside of the corrugated surface and presses the soft pipe toward the corrugated surface, and a second small diameter portion arranged radially outside of the column surface and presses the soft pipe toward the column surface.

Abstract: A connector for flexible hoses, comprising: a hollow main body forming an element for coupling with a flexible hose comprising at least two ramp-like annular elements, separated by at least one circumferential recess and forming a housing for a sealing element; at least one sealing element, designed to be positioned in the recess; and at least one clamping element designed to apply a force in a radial direction on the outer surface of the flexible hose when the flexible hose is coupled with the hollow main body, and operating in conjunction with the sealing element to allow, in use, a sealed coupling between the flexible hose and the hollow main body.

Abstract: A fitting, particularly for connecting two pipes, comprising: a support sleeve (1), having a first connection segment (11a) at a first end, and having a second connection segment at an opposite second end, wherein at least the first connection segment (11a) is formed so that a pipe segment (70) can be pushed onto it and having a middle segment (12) disposed between the first and the second connection segment (11a, 11b), wherein the middle segment (12) comprises a fixing element (32, 34) extending at least partially around the support sleeve and having a separable ring element (20) having an inner diameter substantially corresponding to an outer diameter of the middle segment (12) and designed for being placed on the support sleeve (1) and being retained by the fixing element (32, 34) in the middle segment (12) in a fixed position.

Abstract: A fluid coupling including a cylindrical stem having a fluid conduit therethrough and a hollow shell provided over a first end of the stem. A tool engaging hexagonal shape on an outer surface of the shell is disposed radially outward from a swage joined portion of the shell to the stem. The tool engaging hexagonal shape includes six non-contiguous flats having rounded portions therebetween. The swage joined portion and the tool engaging hexagonal shape are located at the same axial location along a centerline of the hollow shell, and the swage joined portion has an axial length along the centerline corresponding to an axial length along the centerline corresponding to an axial length along the centerline of the tool engaging hexagonal shape.

Abstract: A hydraulic hose fitting comprises a hydraulic hose engaging portion and a hydraulic port engaging portion. The hydraulic hose engaging portion includes a body having an axial bore extending therethrough and a stem press-fit into the axial bore. The hydraulic port engaging portion is coupled to the hydraulic hose engaging portion. The hydraulic port engaging portion may be a swivel nut.

Abstract: A brake line assembly including a brake hose and a connector assembly. The connector assembly includes a tube having a portion thereof the tube externally threaded; a flare nut defining a bore and through which the tube is inserted; and a fitting defining a bore configured to receive an end of the brake hose therein. A portion of a wall defining the fitting's bore is disposed adjacent the fitting's first end and is internally threaded. The threaded portion of the tube is engaged therewith. The fitting is disposed a distance from a flare on the tube adjacent a first end of the flare nut and when the flare nut is fixedly engaged with a component of the braking system, the distance between the fitting and the second end of the flare nut is sufficiently large enough to permit a head of a flare-nut wrench to be received therein.

Abstract: The invention relates to a vibration absorbing pipe for a refrigeration compressor including: a corrugated pipe; a first connection pipe having concavo and convex portions; a wire braided net adapted to be fitted to the outer peripheral surfaces of the corrugated pipe and the first connection pipe; and a first compression ring having concavo and convex portions formed on the inner peripheral surface thereof in such a manner as to be compressed against the front end periphery of the wire braided net located just on the top of the first connection pipe, wherein the first connection pipe has an adjusting groove formed on one side outer peripheral surface thereof, so that through the width adjustment of the adjusting groove, a thickness of one side bonding portion of the first connection pipe is the same as a thickness of one side bonding portion of the corrugated pipe.

Abstract: A hydraulic duct for feeding fluid at high pressure includes a rigid tube and a flexible hose connected to the rigid tube by a connecting assembly. The connecting assembly includes an endform in communication with the rigid tube over which the flexible hose extends. The endform includes a primary annular projection extending outwardly from a periphery of the endform and at least one auxiliary annular projection extending outwardly from the periphery of the endform. The primary annular projection includes a leading edge, a trailing edge, a landing region that extends axially from the trailing edge toward the leading edge and a stop bead that extends outwardly from the leading edge beyond the landing region.

Abstract: A multi-barbed connection suitable for use in connecting a piece of flexible irrigation tubing is provided, where one of the barbs is a circumferential barb configured for forming a generally fluid tight connection with the tubing and another of the barbs is a corner barb having one or more corners configured for biting into the tubing for at least partially assisting in retaining the tubing on the connection. The connection can be part of a fitting for fluidly joining multiple pieces of tubing or part of an irrigation device, such as a pop-up irrigation sprinkler.

Abstract: A hose coupling assembly is provided for use with an ultra low permeable hose. The coupling utilizes multiple sealing techniques to ensure that no refrigerant escapes from the end of the hose. The techniques are mechanical crimping utilizing a shell with barbs, a chemical sealant on the cut end of the hose and between the hose and the shell, annular seals on the nipple portion of the coupling, and an annular weld or braze of the shell to the coupling body.

Abstract: A fluid coupling including a cylindrical stem having a fluid conduit therethrough and a hollow shell provided over a first end of the stem. A tool engaging hexagonal shape on an outer surface of the shell is disposed radially outward from a swage joined portion of the shell to the stem. The tool engaging hexagonal shape includes six non-contiguous flats having rounded portions therebetween. The swage joined portion and the tool engaging hexagonal shape are located at the same axial location along a centerline of the hollow shell, and the swage joined portion has an axial length along the centerline corresponding to an axial length along the centerline corresponding to an axial length along the centerline of the tool engaging hexagonal shape.

Abstract: A pipe fitting assembly for use with pipes made of plastics materials. The pipe fitting assembly has a body which includes at least one male pipe engagement section which includes a plurality of engagement ridges. The pipe fitting assembly also includes swage collar over the or each male pipe engagement section which is secured at one end to the body and is swageable over its associated male pipe engagement section to hold a pipe securely to the pipe fitting assembly. The or each male pipe engagement section also includes at least one pipe engagement detection feature which is configured to allow relatively free movement of a pipe onto the or each male pipe engagement section, but is configured to resist movement of a pipe back off the or each male pipe engagement section.

Abstract: The press fitting for a tube, particularly for a plastic tube or a plastic/metal compound tube, comprises a fitting body (12) including a support shell (14) for mounting thereon one end of a tube (20) which is to be connected, a press shell (16) which is plastically deformable for pressing against the support shell (14) the end of a tube (20) to be connected that has been mounted on the support shell (14), an abutment element (30) arranged on the press shell (16) and having an abutment face (34) to be abutted by a pressing tool (26) for plastically deforming the press shell (16), and at least one press indication portion (40) projecting from the abutment face (34) of the abutment element (30) and extending externally on the press shell (16) into an acting region (38) within which the pressing tool (26) encloses the press shell (16) during deformation of the press shell (16), the press indication portion (40) being separable from the abutment element (30) by means of the pressing tool (26) during the deformati

Abstract: A tuning cable for hydraulic system noise reduction is secured to a secondary fitting where the secondary fitting is mounted in a primary fitting using a pressed-in fit, a threaded connection or a slip fit after a tuning cable is installed in the secondary fitting by crimping the secondary fitting. The primary fitting is secured to a hydraulic connector which is also secured to a hydraulic hose to form a hydraulic hose assembly. In an alternative embodiment the secondary fitting is slipped directly into the hydraulic connector.

Abstract: A coupling assembly for use with a wire-reinforced elastomeric hose member includes a stem member defining at least one groove and the groove includes first and second walls, a bottom portion and a pair of shoulder portions separated by a width and a shell member at least partially enclosing said stem member and defining at least one axially extending barb member. The barb member includes a tip portion having first and second edge portions. The tip of the barb member is sized relative to the shoulders in said groove to transfer force developed by deflection of the reinforcement wire to compress a liner of the hose at the shoulders through the barb edge portions corresponding to a swaged state of the shell and stem members.

Abstract: A pressure tight, high pressure metal hose fitting is provided for a corrugated metal hose formed from metal tube having the fitting crimped permanently to the end of the hose. The fitting includes a first end with a stem which has threading to be coupled to an appropriate fitting surface. The fitting also has a second end adapted to be received within the hose. A sealing gasket is disposed on the second end of the fitting. A clamshell element is disposed above and about the fitting and the hose. The fitting includes projections which are adapted to be received in the clamshell assembly. A crimping ferrule is placed above and about the clamshell and is crimped to compress the clamshell about the fitting and hose and causes the sealing gasket to form a pressure tight seal.

Abstract: A fitting for coupling with a pipe in a sour environment includes a coupling body, a ring positioned to fit over an end of the coupling body, a main seal formed on an inner surface of the coupling body, a transition section positioned adjacent the main seal, an inboard seal formed on an inner surface of the coupling body, and an outboard seal formed on an inner surface of the coupling body. The transition section is formed as an indentation on the inner surface of the coupling body and has a first portion with a first diameter and a second portion with a second diameter, with the first diameter being greater than the second diameter. When the ring is fitted over the at least one end of the coupling body via force, the ring and coupling body apply a coupling force to the main seal, the outboard seal and the inboard seal to connect the pipe to the coupling body in a non-leaking manner. The fitting is made of a low alloy carbon steel material. The main seal includes a first seal, a second seal, and a third seal.

Abstract: An improved swage fitted end connector for high pressure large diameter reinforced flexible rubber hose utilizing sine-wave locking of the reinforcement and carefully machined internal grippers to cause a portion of the reinforcement wire to connect directly to the connector and particularly suited to the petrochemical and drilling industries is disclosed. A connector for use with high temperature-high pressure large diameter wire reinforced rubber hose is discussed along with other embodiments. All connectors will withstand the rated burst pressure and temperature of the hose without pumping off or leaking; thus, any hose that utilizes the improved device will fail before the connector pops off of the hose. Two alternate embodiments are discussed.

Abstract: A hose connector assembly configured to repair or connect hoses, such as hydraulic hoses including a crimping sleeve, a hose insert and a first and second clamping nut. The hose insert is positioned within the crimping sleeve. The first clamping nut extends about the crimping sleeve on one side with the second clamping nut extending about the crimping sleeve on the other side. Whereupon, the tightening of the first clamping nut directs the crimping sleeve toward the hose insert to clamp a hose therebetween, and the tightening of the second clamping nut directs the crimping sleeve toward the hose insert to clamp a hose therebetween. The hose insert having a bore extending therethrough so as to place the hose portions in sealed fluid engagement through the bore.

Abstract: A hose coupling (1) is provided, having a sleeve-like configuration and, at at least one coupling end, has a connector (3) with a retaining profiling provided on the outer circumference of at least one connector sub-region, it being possible for a hose end (4) of a flexible hose (2) to be pushed onto said at least one profiled coupling end.

Abstract: A hose coupling is described. The hose coupling includes a stem to which is staked a ferrule. The stem includes a radially inwardly directed groove into which a radially inwardly directed wedge of the ferrule is staked. The wedge includes a width that is greater than the width of the groove before staking. Moreover, the groove includes a bottom surface from which first and second canted sides extend at a first angle, while the wedge includes an inner surface from which first and second canted sides extend at a second angle. The first and second angles are not parallel but within five degrees of one another. The stem and ferrule form at least six distinct regions of surface contact to guard against rotation of the ferrule relative to the stem.

Abstract: The coupling element is characterized in that that on the locking pieces, on the coupling element and on the nipple element there are formed circumferentially extending projections which viewed in cross-section are substantially roof-shaped or substantially serrated and which extend around a part of the whole circumference of the locking pieces, the coupling element and the nipple element and are elastically deformed during the inserting operation and lock in place one after the other, and that at least one circumferential section of the locking pieces, of the coupling element and of the nipple element are free of the roof-shaped or serrated projections and have guide means for the twist-proof inserting operation.

Abstract: A hose assembly is provided having a bendable inner hose, a bendable outer hose, and a ferrule, wherein both the inner and outer hose are connected to the ferrule.

Abstract: An electrically conductive hose cutting clip has at least one cutting blade that is shaped to provide a cutting edge for penetration of the inner layer(s) of a multiple layer fluid conveyance hose when it is clipped onto a fluid connector and the hose is installed on the fluid connector by forcing it onto the connector. The cutting action by the cutting blade provides for a relatively low resistance electrical connection between an electrically conductive layer of the hose and the fluid connector. This can be used to provide a signal path from a sensing element on the hose to a system electronic component.

Abstract: A hose end coupling comprising a unitary one-piece stem having an exterior barb end portion and an exterior ferrule interface portion, with a unitary one-piece radially crushable ferrule disposed over the stein, with a crushable socket portion disposed about the barb end portion, a deformable attachment portion disposed about the ferrule interface portion, and a torque communication portion defined between the socket portion and the attachment portion. The socket portion may retain a “C” shaped insert, one or more coiled inserts, or a plurality of stacked inserts, for gripping a hose end and the socket portion might define a lip, with a seal disposed in the socket portion between the insert(s) and the lip. Some embodiments of a “C” shaped insert define inner-circumferential teeth and corresponding outer-circumferential depression indentions.

Abstract: A sanitary hose coupling (1) including a tubular coupling base body (2) which, in at least one of the base body end regions thereof, has a hose connector (3) profiled in at least one sub-region for a flexible water hose (4) to be pushed on, and also includes a crimp sleeve (6) which, when deformed, fixes an end (5) of the water hose (4) encompassed by the crimp sleeve (6) on the hose connector (3). The hose coupling (1) provides that the end (5) of the water hose (4) encompassed by the crimp sleeve (6) can be fixed in a rotationally fixed manner on the hose connector (3), and that the end (5) of the hose can be pushed onto a profiled section (7) of the hose connector (3) that is not round in the circumferential direction. Since the hose coupling permits a torque transmission between the water hose (4) and the coupling base body (2), the hose coupling is able to substantially facilitate the mounting and dismantling of a water hose (4) even under restricted spatial conditions.

Abstract: A hose nipple (4) for a hose arrangement (1) is provided, having retaining ribs (6) on the outer side. According to the invention, the retaining ribs (6) vary in their form, size and arrangement on the nipple base body (5) between the hose side (12) and the outlet side (11) of the hose nipple (4) such that a uniform and parallel input of force into the pressure hose (2) is achieved by the retaining ribs (6), which causes the force- and/or form-fitting connection between the hose nipple (4) and the pressure hose (2) fitted thereon.

Abstract: A connecting device for connecting a hose in a fluid-conveying system including a nipple and a compression sleeve. The nipple has a rotation-symmetrical hose-receiving section and, at a distance therefrom, an anti-twist section that is configured in a non-circular manner, at least after a connection has been established between said hose and the nipple. The compression sleeve is configured to extend over the hose-receiving section and over the anti-twist section. The compression sleeve is further configured for a positive-locking engagement with respect to a relative rotation in the anti-twist section. The anti-twist section is configured as a non-circular deformation of at least part of the nipple. A method for establishing an anti-twist connection between a nipple and a hose using a compression sleeve is also disclosed.

Abstract: A piping connector is provided having a ring configured to install around an external diameter of a pipe, the ring having at least one clamp closing portion that has an open uncrimped position and a closed crimped position, a piping shield connected to the ring, the piping shield having at least one penetration to accept the at least one clamp closing portion, wherein the piping shield covers an abutment end of the pipe to be connected, wherein a joint between the ring and the piping shield forms a connection.

Abstract: A connector for flexible hoses, comprising: a hollow main body forming an element for coupling with a flexible hose comprising at least two ramp-like annular elements, separated by at least one circumferential recess and forming a housing for a sealing element; at least one sealing element, designed to be positioned in the recess; and at least one clamping element designed to apply a force in a radial direction on the outer surface of the flexible hose when the flexible hose is coupled with the hollow main body, and operating in conjunction with the sealing element to allow, in use, a sealed coupling between the flexible hose and the hollow main body.

Abstract: The present invention relates to a drilling tool incorporating first and second ends, a cuttable and/or processable shaft extending between the ends. The first end has a drill bit to penetrate rock. The drill bit and the shaft have complementary threads. The drill bit and the shaft comprise a relative rotation stop means that ensures that the drill bit remains loose during drilling in a first direction. The invention further relates to a self drilling rock bolt, a drill bit, drill shaft and shaft coupling, and an anchoring device per se.

Abstract: A fluid fitting for attachment to a tube includes a cylindrical first sleeve having a tapered outer end surface and an inner surface defining an axial bore for receiving the tube. A cylindrical second sleeve creates an annular space for receiving the tube between the first and second sleeves when the second sleeve is placed within the axial bore. The axial bore has substantially equal diameter throughout. A swage ring has a tapered inner surface that axially swages the swage ring to the first sleeve, second sleeve and tube. A first sleeve shoulder restricts axial movement of the swage ring. A first portion protrudes from the inner surface of the first sleeve to restrict axial movement of the second sleeve.

Abstract: A fitting for thick-walled pipes, having a contact region and a pressing region, the pressing region being arranged on the side of the contact region facing towards the pipe insertion opening, and the wall thickness in the pressing region being at least in sections less than the wall thickness in the contact region. The invention also relates to a method for producing a fitting for thick-walled pipes, in which a thick-walled pipe is radially widened in a fitting region arranged at one pipe end so that the internal diameter of the fitting region corresponds substantially to the external diameter of the pipe and the wall thickness in the fitting region corresponds substantially to the wall thickness of the rest of the pipe.

Abstract: A method for manufacturing a connection between a hose and coaxial line section is provided. The method includes providing an outer pipe, inserting an inner pipe along with a hose situated at least partially on an outer periphery of the inner pipe inside the outer pipe, and deforming the outer pipe, the inner pipe or both so that the hose becomes clamped between the inner pipe and outer pipe. A coaxial line section for a refrigerant circuit of a motor vehicle also is provided.

Abstract: A hose coupling for attaching to the end of a hydraulic hose includes a shell member positioned about the free end of the hydraulic hose. A body member includes a first end and a second end. The second end of the body member is inserted through the shell member and into the inner diameter of the hydraulic hose. An encapsulated fastener is rotatably and slidably disposed about the body member and positioned between the first end and the shell member. The first end has a flange portion having a diameter greater than the diameter of the body member and contains a groove for receiving an o-ring. The o-ring is adapted for sealing connection to a hydraulic device.

Abstract: A hose coupling for fitment to an end of a cable reinforced hose includes a unitary stem having a cable trap groove portion having an outside diameter greater than an inside diameter of a tube of the hose and less than an inside diameter of the hose with the tube skived from the hose. A unitary ferrule defines at least one cable trap rib corresponding to the cable trap groove and having an inside diameter less than the outside diameter of the cable reinforced hose and greater than an outside diameter of the hose with material covering the cable skived from the hose. The groove width is at least the width of the rib plus twice the diameter of cable reinforcing the hose. Epoxy may be disposed between the hose tube and the stem for sealing or injected between the ferrule and the stem permeating the cable.

Abstract: A hose end coupling comprising a unitary one-piece stem having an exterior barb end portion and an exterior ferrule interface portion, with a unitary one-piece radially crushable ferrule disposed over the stein, with a crushable socket portion disposed about the barb end portion, a deformable attachment portion disposed about the ferrule interface portion, and a torque communication portion defined between the socket portion and the attachment portion. The socket portion may retain a “C” shaped insert, one or more coiled inserts, or a plurality of stacked inserts, for gripping a hose end and the socket portion might define a lip, with a seal disposed in the socket portion between the insert(s) and the lip. Some embodiments of a “C” shaped insert define inner-circumferential teeth and corresponding outer-circumferential depression indentions.

Abstract: A pressure tight, high pressure metal hose fitting is provided for a corrugated metal hose formed from metal tube having the fitting crimped permanently to the end of the hose. The fitting includes a first end with a stem which has threading to be coupled to an appropriate fitting surface. The fitting also has a second end adapted to be received within the hose. A sealing gasket is disposed on the second end of the fitting. A clamshell element is disposed above and about the fitting and the hose. The fitting includes projections which are adapted to be received in the clamshell assembly. A crimping ferrule is placed above and about the clamshell and is crimped to compress the clamshell about the fitting and hose and causes the sealing gasket to form a pressure tight seal.

Abstract: An umbilical hose end coupling that comprises a sleeve and an insert for the sleeve, the insert having a hose end for insertion into the hose and the sleeve having a hose end for covering the exterior of the hose and the insert, and the insert and sleeve each having a coupling end for engaging each other, and the sleeve having a first specified region that is subject to swaging and a second specified region that is not subject to swaging.

Abstract: A fluid line having a crimp joint comprises a flexible hose, a tube and a ferrule. The tube has a tube stem portion located in the flexible hose, with the tube stem portion including a first flat portion adjacent to the free end, a second flat portion, a third flat portion, a first tube stem bead located between the first and second flat portions and extending radially outward, and a tube stem groove located between the second and third flat portions and extending radially inward. A ferrule is located radially outward from the flexible hose, with the ferrule including a first crimp tooth located radially outward from the first flat portion, a second crimp tooth located radially outward from the second flat portion, and a third crimp tooth located radially outward from the third flat portion, wherein the crimp teeth are out of phase with the bead and the groove.

Abstract: A hose end coupling comprising a unitary one-piece stem having an exterior barb end portion and an exterior ferrule interface portion, with a unitary one-piece radially crushable ferrule disposed over the stem, with a crushable socket portion disposed about the barb end portion, a deformable attachment portion disposed about the ferrule interface portion, and a torque communication portion defined between the socket portion and the attachment portion. The socket portion may retain a “C” shaped insert, one or more coiled inserts, or a plurality of stacked inserts, for gripping a hose end and the socket portion might define a lip, with a seal disposed in the socket portion between the insert(s) and the lip. Some embodiments of a “C” shaped insert define inner-circumferential teeth and corresponding outer-circumferential depression indentions.

Abstract: An application for a clamp guide for joining a flexible hose to a rigid, hollow shaft having at least two beads, the clamp guide has an arced surface for interfacing with a head bead of the at least two beads and two clamp guide arms. Each of the clamp guide arms has at least two bumps and each bump is aligned with one of the beads thereby forming registration areas between each pair of bumps. The arced surface has an inner diameter equal to an outer diameter of the rigid, hollow shaft and the arced surface has an inner circumferential length greater than one half of the circumference of the rigid, hollow shaft.

Abstract: A fitting incorporating a crimp sealing device and a method of forming a seal between a length of corrugated tubing and the fitting are provided. A sealing crimp is formed over at least one corrugation of the tubing, where the sealing crimp can utilize a preformed bend or bulge to form a crimp and seal. Alternatively, the sealing crimp can apply pressure radially against an outer sleeve of the fitting, such that at least one corrugation of the tubing is compressed axially or radially to form a primary seal. The outer sleeve also can include one or more gaskets arranged between the outer sleeve and the tubing for forming a secondary seal. An inner sleeve can be received radially inside the outer sleeve, and one or more gaskets can be arranged between the inner sleeve and the tubing. Further, a jacket crimp can be applied against an end of the sleeve member to contact a jacket that at least partially covers the tubing.

Abstract: An annular shaped crimp ring construction which incorporates two separate and distinct sections formed adjacent each other on the same annular member. In accordance with the present invention, the first section of the crimp ring comprises an axial length which is substantially greater than the axial length of the second section, with the first section also comprising a thickness which is substantially greater than the thickness of the second section.

Abstract: This invention concerns a process for joining at least a first and a second conduit so as to control the electrical resistance of a circuit of conduits characterized in that it comprises of the following steps placing a cylindrical section of an adapter (220) onto an end of the first conduit (500). crimping at least one part of the cylindrical section onto the first conduit, with a spacing block (100) of a polymeric material having a preselected conductivity being positioned on the extension of the end of the first conduit and clipped to the cylindrical section, with the crimping serving to lock the spacing block with respect to the adapter. joining the spacing block to the end of the second conduit.

Abstract: A pipe joint includes a soft pipe, a hard pipe and a sleeve. The hard pipe includes an insert portion inserted into an inside of the soft pipe from an end portion of the soft pipe. The sleeve is arranged radially outside of the insert portion and the soft pipe, and presses the soft pipe toward the insert portion. The insert portion includes a corrugated surface, which is arranged on an outer surface of the insert portion, and a column surface, which is arranged on the outer surface at a tip side of the insert portion. The sleeve includes a first small diameter portion, which is arranged radially outside of the corrugated surface and presses the soft pipe toward the corrugated surface, and a second small diameter portion arranged radially outside of the column surface and presses the soft pipe toward the column surface.

Abstract: A method of energizing a high pressure tube connector for a well comprising a tube; a first connector assembly comprising: a female profile disposed over the tube and a first ferrule disposed over the tube adjacent the female profile; a second connector assembly comprising: an inverted jam nut disposed over the tube and a second ferrule disposed over the tube adjacent the inverted jam nut, wherein the second ferrule extends along the tube in a direction opposite the first ferrule; a nipple comprising a test port, wherein the nipple is disposed over the tube between the first ferrule and the second ferrule; a primary seal formed by compressing the first ferrule into the female profile using a pressure from the test port; and a secondary seal formed by compressing the second ferrule into the inverted jam nut using the pressure from the test port.

Abstract: The press fitting for a pipe is provided with a fitting element which comprises a supporting element onto which a pipe to be connected can be pushed. Furthermore, the press fitting comprises a compression sleeve which has on its circumferential surface a compression region corresponding to the region a pressing tool acts on the compression sleeve during the compression thereof. A plastic ring is situated on the outside of the compression sleeve and is secured thereon against movements in the axial direction of the compression sleeve wherein the plastic ring has at least one axial projection which extends right into the compression region of the compression sleeve and which can be destroyed when the pressing tool acts on the compression sleeve and/or is secured so that it can be separated from the plastic ring.

Abstract: Fitting assemblies and methods for connecting a flexible plastic tubing to a fitting. The assembly includes a thin-walled flexible sleeve positioned over a flared end of the tubing and the tube-receiving portion of the fitting in an interference fit.