NL2028259B1 - Pipe coupling system and a method of connecting a metal pipe to a pipe coupling - Google Patents

Pipe coupling system and a method of connecting a metal pipe to a pipe coupling Download PDF

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Publication number
NL2028259B1
NL2028259B1 NL2028259A NL2028259A NL2028259B1 NL 2028259 B1 NL2028259 B1 NL 2028259B1 NL 2028259 A NL2028259 A NL 2028259A NL 2028259 A NL2028259 A NL 2028259A NL 2028259 B1 NL2028259 B1 NL 2028259B1
Authority
NL
Netherlands
Prior art keywords
pipe
pipe coupling
metal pipe
circumferential groove
coupling system
Prior art date
Application number
NL2028259A
Other languages
Dutch (nl)
Inventor
Luke Allen Josef
Fardon Mark
Original Assignee
Wavin Bv
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wavin Bv filed Critical Wavin Bv
Priority to NL2028259A priority Critical patent/NL2028259B1/en
Priority to GB2205840.8A priority patent/GB2607188B/en
Application granted granted Critical
Publication of NL2028259B1 publication Critical patent/NL2028259B1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
    • F16L37/091—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of a ring provided with teeth or fingers
    • F16L37/0915—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of a ring provided with teeth or fingers with a separate member for releasing the coupling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
    • F16L37/091—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of a ring provided with teeth or fingers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
    • F16L37/098—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of flexible hooks
    • F16L37/0985—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of flexible hooks the flexible hook extending radially inwardly from an outer part and engaging a bead, recess or the like on an inner part
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/0002—Means for connecting central heating radiators to circulation pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L2201/00—Special arrangements for pipe couplings
    • F16L2201/10—Indicators for correct coupling

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Abstract

A pipe coupling system, comprising a metal pipe having a first end and a circumferential groove arranged in the outer surface of the metal pipe, the groove disposed at a first distance from the first end, wherein the metal pipe including the circumferential groove is provided with a layer of chrome or chrome alloy. The pipe coupling system further comprising a pipe coupling comprising a body portion defining a bore for receiving a part of the pipe including said first end and the circumferential groove; a first internal shoulder disposed within the bore; and a gripping element for engaging an outside surface of the metal pipe, the gripping element disposed at a second distance from the first internal shoulder along an axial direction of the bore.

Description

PIPE COUPLING SYSTEM AND A METHOD OF CONNECTING A METAL PIPE TO A PIPE COUPLING Field of the Invention The present invention relates to a pipe coupling system, a radiator comprising said pipe coupling system and a method of connecting a metal pipe to a pipe coupling. Background of the Invention Pipe couplings are connecting elements which allow two or more pipes to be joined together. They are used extensively in domestic plumbing applications such as for water supply, heating and sanitation as well as in industrial applications. Specifically, in domestic plumbing applications, push-fit pipe couplings are widely used. Push-fit pipe couplings are simple to use and quick to install, as they only require the end of the pipe to be pushed into the pipe coupling in order to achieve a secure fit with the coupling. This greatly reduces the time required and complexity of laying pipework compared to other types of couplings. Push- fit couplings generally comprise a coupling body in which a bore is provided for receiving an end of the pipe to be connected, and gripping a gripping element comprising teeth that grip the surface of the pipe so as to prevent the pipe from being withdrawn from the pipe coupling. Some known push-fit pipe couplings are releasable and allow the pipe coupling to be detached from the pipe so that the pipe and pipe coupling can be reused. One such pipe coupling is disclosed in WO 2010/136606.
Presently known push-fit pipe couplings are generally used with plastic pipes, as the gripping element can engage with the outer surface of the plastic pipe by piercing it to hold the plastic pipe in place within the pipe coupling. In certain applications, however, for example for a radiator upstand, it can be beneficial to use a chrome-plated metal pipe which is more durable, rigid and impact resistant. The chroming process provides improved corrosion resistance and increased surface hardness. These chrome-plated metal pipes, however, cannot presently be used with push- fit pipe couplings, as the teeth of the gripping element slide along the surface of the pipe and do not hold the pipe in place.
There is hence a need in the art for an improved pipe coupling system, with a simple and secure connection between a chromed metal pipe and a pipe coupling.
Summary of the Invention In a first aspect of the present invention, there is provided a pipe coupling system, comprising a metal pipe having a first end and a circumferential groove arranged in the outer surface of the pipe. The circumferential groove is disposed at a first distance from the first end. The metal pipe including the circumferential groove is provided with a layer of chrome or chrome alloy. The pipe coupling system further comprises a pipe coupling comprising a body portion defining a bore for receiving a part of the metal pipe including said first end and the circumferential groove, a first internal shoulder disposed within the bore, and a gripping element for engaging an outside surface of the metal pipe. The gripping element is disposed at a second distance from the first internal shoulder along an axial direction of the bore. The first internal shoulder may in particular be an internal shoulder that is suitable for engaging the first end of the metal pipe during insertion of the metal pipe into the pipe coupling. In other words, the first internal shoulder may limit the maximum insertion distance of the metal pipe into the pipe coupling. The gripping element may be for engaging the circumferential groove of the metal pipe.
In some embodiments, this may result in a pipe coupling system with a simple and secure connection between the metal pipe and the pipe coupling. in some embodiments, this may further result in a long-lasting secure fit between the metal pipe and the pipe coupling and allows the metal pipe to be reusable. The second distance may be greater than the first distance. I some embodiments, this may provide tactile feedback when inserting the metal pipe into the pipe coupling and therefore allowing an easy determination of when the metal pipe is secured in the pipe coupling to be made. The cross section of the circumferential groove may be U-shaped, V-shaped, rectangular-shaped or trapezoidal shaped.
In some embodiments, this may result in a more secure fit between the pipe coupling and metal pipe.
The metal pipe including the circumferential groove may be plated with the layer of chrome or chrome alloy. The circumferential groove may have a width in the range of 0.5mm to 2mm.
In some embodiments, this may result in a more secure fit between the pipe coupling and metal pipe.
Throughout this disclose, the term ‘in the range of’ includes the end points of the range and all of the values between those two end points. Preferably, the width of the circumferential groove may be in the range of Imm to 1.5mm.
The circumferential groove may have a depth in the range of 0.2mm to Imm. In some embodiments, this may result in a more secure fit between the pipe coupling and metal pipe.
Preferably, the circumferential groove may have a depth in the range of 0.2mm to 0.5mm. The first distance may be in the range of 10mm to 25mm. Preferably, the first distance may be in the range of 15mm to 18mm.
The gripping element may comprise a plurality of teeth extending radially inwardly into the bore of the pipe coupling. The plurality of teeth may be inclined in a direction of pipe insertion.
The circumferential groove may be shaped for accommodating the teeth. The cross-section of the circumferential groove may be rectangular shaped and inclined in a pipe insertion direction at the same angle as the plurality of teeth.
The cross-section of the circumferential groove may be square shaped.
The pipe coupling may further comprise a sealing element for sealing a space between the pipe coupling and an outer surface of the metal pipe. The metal pipe may be made from copper or a copper alloy.
The metal pipe may have a length in the range of 300mm to 900mm. The metal pipe may have a diameter in the range of 10mm to 40mm. The pipe coupling system may be a pipe upstand for a radiator. The pipe coupling may further comprise a pipe release element configured to disengage the gripping element from the surface of the pipe upon axial movement of the pipe release element. The pipe coupling may further comprise a rotatable sleeve which is arranged at least partially around the body portion and which is rotatable around the axis of the bore with respect to the body portion; and a release collar coupled to an end of the rotatable sleeve. Axial rotation of the rotatable sleeve in a first direction may cause the release collar to move axially from a locked position to an unlocked position. In the unlocked position, the release collar can be moved axially in a pipe insertion direction to cause the pipe release element to disengage the gripping element from the surface of the pipe. In some embodiments, this may result in an easier to use pipe coupling which does not require a pipe release tool.
Axial rotation of the rotatable sleeve in a second direction may causes the release collar to move axially from the unlocked position to the locked position. The pipe release element may have a threaded outer surface which engages with a threaded inner surface of the release collar. The release collar may be coupled to the rotatable sleeve such that the release collar rotates together with the rotatable sleeve. The release collar may be coupled to the rotatable sleeve such that the release collar can move axially with respect to the rotatable sleeve.
The release collar may comprise a number of axial grooves or ridges to engage a number of axial ridges or grooves of the rotatable sleeve.
A radiator system may comprise a heating element for allowing a heating fluid to flow through the 5 heating element; a valve disposed at an input to the heating element for regulating the fluid flow through the heating element; and the pipe coupling system according to any of the above for connecting the valve to a supply of heating fluid. A second end of the metal pipe may be connected to the valve.
In a second aspect of the present invention, there is provided a method of connecting a metal pipe to a pipe coupling comprising: providing a metal pipe having a first end and a circumferential groove arranged in the outer surface of the pipe, the groove disposed at a first distance from the first end. The metal pipe including the circumferential groove is provided with a layer of chrome or chrome alloy. The method further comprising providing a pipe coupling comprising a body portion defining a bore for receiving the metal pipe; a first internal shoulder disposed within the bore; and a gripping element for engaging an outside surface of the pipe, the gripping element disposed at a second distance from the first internal shoulder along an axial direction of the bore. The method further comprises inserting the metal pipe into the bore of the pipe coupling such that the gripping element engages the circumferential groove to secure the metal pipe within the pipe coupling.
In some embodiments, this may result in a simple and secure method of connecting a chromed metal pipe with a pipe coupling.
The second distance may be greater than the first distance.
inserting the metal pipe may comprise inserting the metal pipe into the bore of the pipe coupling such that the first end abuts the first internal shoulder; and pulling the metal pipe in a direction opposite the pipe insertion direction such that the gripping element engages the circumferential groove to secure the metal pipe within the pipe coupling The method may further comprise connecting a second end of the metal pipe to a radiator valve. Brief Description of the Drawings To enable better understanding of the present disclosure, and to show how the same may be carried into effect, reference will now be made, by way of example only, to the accompanying drawings, in which:
FIG. 1 shows a cross-sectional side view of a pipe coupling system according to the present invention. FIG. 2A and 2B show side views of the metal pipe of the pipe coupling system of FIG. 1. FIGS. 3A-D show side views of variations in the shape of the circumferential groove of the pipe. FIG. 4 illustrates a method of connecting the metal pipe to the pipe coupling to form the pipe coupling system of FIG. 1. FIG. 5 shows a radiator comprising the pipe coupling system of FIG. 1. Detailed Description FIG. 1 shows a cross-sectional side view of a pipe coupling system 10. The pipe coupling system 10 comprises a pipe coupling 20 into which a metal pipe 30 is inserted in a pipe insertion direction. The pipe coupling 20 comprises a coupling body 21 defining a bore into which the metal pipe 30 is inserted, a sealing element 22 in the form of an O-ring, a connector element 23, a gripping element 24, a sleeve 25 and a release element 26. The coupling body 21 has an internal shoulder 27 disposed within the bore, The metal pipe 30 may be made from copper, for example, and is plated with a layer of chrome or chrome alloy. The layer of chrome or chrome alloy provides improved corrosion resistance and increased surface hardness. The metal pipe 30 has a first end 31 which is the end which is inserted into the pipe coupling 20. The metal pipe 30 also comprises a circumferential groove 32 which is formed in the outer surface of the metal pipe 30 and disposed a first distance L1 from the first end
31. A layer of chrome or chrome alloy is also deposited inside the circumferential groove 32. This hardens the surface of the groove and provides corrosion resistance such that the circumferential groove 32 does not become worn out and provides a long-lasting secure fit between the metal pipe 30 and the pipe coupling 20. Furthermore, the layer of chrome or chrome alloy results in no sharp edges or burrs on the circumferential groove 32 and therefore allows easy insertion of the metal pipe 30 into the pipe coupling 20 and prevents damage to the internal components of the pipe coupling 20.
When the metal pipe 30 is inserted into the pipe coupling 20, the sealing element 22 forms a fluid- tight seal between the outside of the pipe 30 and the pipe coupling 20. The gripping element 24 comprises a plurality of teeth 28 which extend radially inwards and are inclined in a pipe insertion direction. When the pipe 30 is correctly inserted into the pipe coupling 20, the teeth 28 engage the circumferential groove 32 of the pipe 30 to secure the metal pipe 30 within the pipe coupling 20. The circumferential groove 32 is shaped to accommodate the teeth 28. The gripping element 24 is disposed at a second distance L2 from the internal shoulder 27 along an axial direction of the bore and the second distance L2 is greater than the first distance L1. There is hence a small gap in the range of 1mm to 4mm, preferably 2mm to 3mm, between the first end 31 and the internal shoulder
27.
In order to release the metal pipe 30 from the pipe coupling 20, a pipe release tool (not shown) is used to axially move the release element 26 in a pipe insertion direction which causes the teeth 28 of the gripping element 24 to disengage from the circumferential groove 32 of the metal pipe 30 and allows the metal pipe 30 to be removed from the pipe coupling 20.
FIG. 1 also shows an enlarged section of the pipe coupling system 10 which shows in more detail how the teeth 28 of the gripping element 24 engage the circumferential groove 32 to hold the metal pipe 30 securely within the pipe coupling 20.
FIG. 2A shows a side view of the metal pipe 30 with the first end 31 and the circumferential groove 32 disposed a first distance L1 from the first end 31.
FIG. 2B shows an enlarged side view of the first end 31 and the circumferential groove 32. The first end has 31 a chamfered or rounded edge which extends a distance a along the length of the pipe. The chamfered or rounded edge reduces friction between the pipe end 31 and the internal components of the pipe coupling 20, such as sealing element 21 and gripping element 24, and thereby allows easier insertion of the pipe 30 into the pipe coupling 20.
The circumferential groove 32 has a width w which is in the range of 0.5mm to 2mm, preferably 1mm to 1.5mm. The circumferential groove 32 has a depth d in the range of 0.2mm to 1mm, preferably 0.2mm to 0.5mm. The first distance L1 from the first end 31 to the circumferential groove 32 is in the range of 10mm to 25mm, preferably 15mm to 18mm. These dimensions of the circumferential groove 32 allow the teeth 28 of the gripping element 24 to be accommodated such that a secure fit between the pipe coupling 20 and metal pipe 30 is achieved whilst still allowing the pipe release element 26 to disengage the gripping element 24 from the circumferential groove 32 to release the pipe 30 from the pipe coupling 20.
As noted above, the second distance L2 between the internal shoulder 27 and the gripping element 24 is greater than the first distance L1 and is in the range of 11mm to 29mm, preferably 16mm to 22mm.
The metal pipe 30 has a length in the range of 300mm to 300mm and a diameter in the range of 10mm to 40mm. FIGS. 3A-3D show variations of the cross-sectional shape of the circumferential groove 32 which may be formed in the pipe 30 described above. FIG. 3A shows a circumferential groove 32A with a rectangular cross-sectional shape. This shape of groove can be easily formed and provides a secure fit between the pipe 30 and the pipe coupling
20. FIG. 3B shows a circumferential groove 32B with a U-shaped cross-sectional shape. This shape of groove can also be easily formed, and the rounded corners can help to prevent cracks in the circumferential groove 32B from propagating. FIG. 3C shows an alternative circumferential groove 32C having a V-shaped cross-sectional shape. FIG. 3D shows a circumferential groove 32D having a trapezoidal cross-sectional shape. Similar to FIG. 3B, the rounded corners of circumferential groove 32D can also help to prevents cracks in the circumferential groove 32D from propagating.
FIG. 4 illustrates a method of connecting the pipe coupling system 10. The metal pipe 30, which has been provided with circumferential groove 32 at a first distance L1 from the first end 31, is inserted with the first end 31 into the bore of the pipe coupling 20. The metal pipe 30 is first fully inserted such that the first end 31 engages the internal shoulder 27. The metal pipe 30 is then pulled out in a direction opposite the pipe insertion direction until the teeth 28 of the gripping element 24 engage the circumferential groove 32 to securely hold the metal pipe 30 within the pipe coupling 20 and prevent any relative axial movement between the metal pipe 30 and the pipe coupling 20. The engagement of the teeth 28 of the gripping element 24 with the circumferential groove 32 when pulling the pipe back out produces tactile feedback in the form of a ‘click’ which allows an installer to easily and reliably determine that the metal pipe 30 is correctly and securely connected to the pipe coupling 20. No further steps are required to connect the metal pipe 20 to the pipe coupling 30. The pipe coupling system 10 is therefore much quicker and simpler to connect than prior art metal pipe connection systems which often comprise press fittings or compression fittings and require specialised tools to compress the pipe coupling around the pipe to hold the pipe in place.
FIG. 5 shows the pipe coupling system 10 as a radiator upstand for a radiator system 40. The pipe coupling 20 is connected to the first end 31 of the metal pipe 30, as described with respect to FIG. 1 and FIG. 4 above. A second end 33 of the metal pipe is connected to a radiator valve 41 which is connected to a heating element 42. The pipe coupling 20 is connected to a supply of heating fluid, for example water or steam, which can flow from the pipe coupling 20 through the metal pipe 30 to the radiator valve 41. The radiator valve 41 can be selectively opened and closed, for example by turning the knob, to allow the heating fluid to flow from the metal pipe 30 into the heating element 41. The present pipe coupling system 10 allows such a radiator upstand to be quickly assembled to provide a durable and secure connection. Various modifications will be apparent to those skilled in the art. For example, the metal pipe 30 may be made from a metal other than copper, such as steel, brass or iron.
The circumferential groove 32 is not limited to a U-shape, V-shape, rectangular shape or trapezoidal shape. Other cross-sectional shapes of the circumferential groove 32 are possible. For example, the cross-section of the circumferential groove may be rectangular shaped and inclined in a pipe insertion direction at the same angle as the plurality of teeth 28.
The second distance L2 may be greater than the first distance L1 or they may be the substantially the same. The dimensions of the circumferential groove are not limited to a width of 0.5mm to 2mm and a depth of 0.2mm to 1mm but may be smaller or larger. The first distance L1 is not limited to a range of 10mm to 25mm but may be smaller or larger. Th first end 31 of the metal pipe 30 may not have a chamfered or rounded edge.
The pipe coupling 20 may not comprise a sealing element 22, a connecting element 23, a sleeve 25 and/or a release element 26. The gripping element 24 may not comprise any teeth 28 but may have other gripping mean which can engage with the circumferential groove 32.
The pipe coupling 20 may be a different type of pipe coupling. For example, the pipe coupling may, in addition to a pipe release element, further comprise a rotatable sleeve which is arranged at least partially around the body portion and which is rotatable around the axis of the bore with respect to the body portion; and a release collar coupled to an end of the rotatable sleeve. Axial rotation of the rotatable sleeve in a first direction may cause the release collar to move axially from a locked position to an unlocked position. In the unlocked position, the release collar can be moved axially in a pipe insertion direction to cause the pipe release element to disengage the gripping element from the surface of the pipe.
Axial rotation of the rotatable sleeve in a second direction may causes the release collar to move axially from the unlocked position to the locked position.
The pipe release element may have a threaded outer surface which engages with a threaded inner surface of the release collar.
The release collar may be coupled to the rotatable sleeve such that the release collar rotates together with the rotatable sleeve.
The release collar may be coupled to the rotatable sleeve such that the release collar can move axially with respect to the rotatable sleeve.
The release collar may comprise a number of axial grooves or ridges to engage a number of axial ridges or grooves of the rotatable sleeve.
All of the above are fully within the scope of the present disclosure and are considered to form the basis for alternative embodiments in which one or more combinations of the above described features are applied, without limitation to the specific combination disclosed above.
In light of this, there will be many alternatives which implement the teaching of the present disclosure. It is expected that one skilled in the art will be able to modify and adapt the above disclosure to suit its own circumstances and requirements within the scope of the present disclosure, while retaining some or all technical effects of the same, either disclosed or derivable from the above, in light of his common general knowledge in this art. All such equivalents, modifications or adaptations fall within the scope of the present disclosure.

Claims (1)

-11- Conclusies-11- Conclusions 1. Een pijpkoppelingssysteem, omvattende: een metalen pijp met een eerste eind en een omtreksgroef gearrangeerd in het buitenoppervlak van de metalen pijp, de omtreksgroef verschaft op een eerste afstand vanaf het eerste eind, waarbij de metalen pijp omvattende de omtreksgroef is voorzien van een laag van chroom of chroomlegering; en een pijpkoppeling omvattende: een lichaamsgedeelte definiërend een boring voor ontvangen van een gedeelte van de metalen pijp omvattend genoemd eerste eind en de omtreksgroef; een eerste interne schouder verschaft in de boring; en een grijpend element voor aangrijpen op een uitwendig oppervlak van de metalen pijp, het grijpende element verschaft op een tweede afstand vanaf de eerste interne schouder langs een axiale richting van de boring.A pipe coupling system comprising: a metal pipe having a first end and a circumferential groove arranged in the outer surface of the metal pipe, the circumferential groove provided a first distance from the first end, the metal pipe including the circumferential groove being provided with a layer of chromium or chromium alloy; and a pipe coupling comprising: a body portion defining a bore for receiving a portion of the metal pipe including said first end and the circumferential groove; a first internal shoulder provided in the bore; and a gripping member for engaging an exterior surface of the metal pipe, the gripping member provided at a second distance from the first internal shoulder along an axial direction of the bore. 2. Het pijpkoppelingssysteem van conclusie 1, waarbij de tweede afstand is groter dan de eerste afstand.The pipe coupling system of claim 1, wherein the second distance is greater than the first distance. 3. Het pijpkoppelingssysteem van conclusie 1 of 2, waarbij de doorsnede van de omtreksgroef U-vormig, V-vormig, rechthoek-vormig of trapezoide vormig is.The pipe coupling system of claim 1 or 2, wherein the cross section of the circumferential groove is U-shaped, V-shaped, rectangular or trapezoidal. 4. Het pijpkoppelingssysteem van conclusie 1, 2 of 3, waarbij de metalen pijp omvattende de omtreksgroef is geplateerd met de laag van chroom of chroomlegering.The pipe coupling system of claim 1, 2 or 3, wherein the metal pipe including the circumferential groove is plated with the layer of chromium or chromium alloy. 5. Het pijpkoppelingssysteem van een der voorgaande conclusies, waarbij de omtreksgroef een breedte in het bereik van 0,5 mm tot 2 mm heeft.The pipe coupling system of any one of the preceding claims, wherein the circumferential groove has a width in the range of 0.5mm to 2mm. 6. Het pijpkoppelingssysteem van een der voorgaande conclusies, waarbij de omtreksgroef een diepte in het bereik van 0,2 mm tot 1 mm heeft.The pipe coupling system of any one of the preceding claims, wherein the circumferential groove has a depth ranging from 0.2mm to 1mm. 7. Het pijpkoppelingssysteem van een der voorgaande conclusies, waarbij de eerste afstand in het bereik van 10 mm tot 25 mm is.The pipe coupling system of any one of the preceding claims, wherein the first distance is in the range of 10mm to 25mm. -12--12- 8. Het pijpkoppelingssysteem van een der voorgaande conclusies, waarbij het pijpkoppelingssysteem voor een radiatorsysteem is.The pipe coupling system of any one of the preceding claims, wherein the pipe coupling system is for a radiator system. 9. Het pijpkoppelingssysteem van een der voorgaande conclusies, waarbij het buitenoppervlak van de metalen pijp buisvormig is. 10, Het pijpkoppelingssysteem van een der voorgaande conclusies, waabij de omtreksgroef is verzonken in het buitenoppervlak van de metalen pijp.The pipe coupling system of any preceding claim, wherein the outer surface of the metal pipe is tubular. 10. The pipe coupling system of any one of the preceding claims, wherein the circumferential groove is recessed into the outer surface of the metal pipe. 14. Het pijpkoppelingssysteem van een der voorgaande conclusies, waarbij het buitenoppervlak van de metalen pijp geen uitsteeksels of ribbels omvat.The pipe coupling system of any one of the preceding claims, wherein the outer surface of the metal pipe has no protrusions or ridges. 12, Het pijpkoppelingssysteem van een der voorgaande conclusies, waarbij het grijpende element een veelvoud van tanden omvat, die zich radiaal inwaarts uitstrekken in de boring van de pijpkoppeling.The pipe coupling system of any one of the preceding claims, wherein the gripping element comprises a plurality of teeth extending radially inwardly into the bore of the pipe coupling. 13, Het pijpkoppelingssysteem van conclusie 12, waarbij het veelvoud van tanden hellend zijn in een richting van pijpinbrenging.The pipe coupling system of claim 12, wherein the plurality of teeth are inclined in a direction of pipe insertion. 14. Het pijpkoppelingssysteem van conclusie 12 of 13, waarbij de doorsnede van de omtreksgroef rechthoekig gevormd is, bij voorkeur vierkant gevormd, en hellend in een pijpinbrengrichting onder dezelfde hoek als het veelvoud van tanden.The pipe coupling system of claim 12 or 13, wherein the cross section of the circumferential groove is rectangular shaped, preferably square shaped, and inclined in a pipe insertion direction at the same angle as the plurality of teeth. 15. Het pijpkoppelingssysteem van een der voorgaande conclusies, waarbij het pijpkoppelingssysteem een pijpopstand voor een radiator is.The pipe coupling system of any one of the preceding claims, wherein the pipe coupling system is a radiator pipe stand. 16. Het pijpkoppelingssysteem van een der voorgaande conclusies, waarbij de pijpkoppeling verder een pijpvrijgave-element omvat geconfigureerd om het grijpende element los te koppelen van het oppervlak van de metalen pijp bij axiale beweging van het pijpvrijgave-element.The pipe coupling system of any one of the preceding claims, wherein the pipe coupling further comprises a pipe release element configured to disengage the gripping element from the surface of the metal pipe upon axial movement of the pipe release element. 17. Een radiatorsysteem omvattende: een verwarmingselement om een verwarmingsfluidum mogelijk te maken te stromen door het verwarmingselement;17. A radiator system comprising: a heating element for enabling a heating fluid to flow through the heating element; -13- een klep verschaft bij een invoer tot het verwarmingselement voor reguleren van de fluidumstroom door het verwarmingselement; en het pijpkoppelingssysteem volgens eender voorgaande conclusie voor verbinden van de klep aan een toevoer van verwarmingsfluidum, waarbij een tweede eind van de metalen pijp met de klep is verbonden.-13- a valve provided at an input to the heating element for regulating fluid flow through the heating element; and the pipe coupling system of any preceding claim for connecting the valve to a supply of heating fluid, wherein a second end of the metal pipe is connected to the valve. 18. Een werkwijze van verbinden van een metalen pijp aan een pijpkoppeling omvattende: verschaffen van een metalen pijp met een eerste eind en een omtreksgroef gearrangeerd in het buitenoppervlak van de metalen pijp, de groef verschaft op een eerste afstand vanaf het eerste eind, waarbij de metalen pijp omvattende de omtreksgroef is voorzien van een laag van chroom of chroomlegering; verschaffen van een pijpkoppeling omvattende een lichaamsgedeelte dat een boring voor ontvangen de metalen pijp definieert; een eerste interne schouder opgesteld in de boring; en een grijpend element voor aangrijpen op een uitwendig oppervlak van de metalen pijp, het grijpende element opgesteld op een tweede afstand vanaf de eerste interne schouder langs een axiale richting van de boring; inbrengen van de metalen pijp in de boring van de pijpkoppeling zodanig dat het grijpende element aangrijpt op de omtreksgroef om de metalen pijp in de pijpkoppeling te bevestigen.18. A method of connecting a metal pipe to a pipe coupling comprising: providing a metal pipe having a first end and a circumferential groove arranged in the outer surface of the metal pipe, the groove provided a first distance from the first end, wherein the metal pipe including the circumferential groove is provided with a layer of chromium or chromium alloy; providing a pipe coupling including a body portion defining a bore for receiving the metal pipe; a first internal shoulder disposed in the bore; and a gripping member for engaging an exterior surface of the metal pipe, the gripping member disposed at a second distance from the first internal shoulder along an axial direction of the bore; inserting the metal pipe into the bore of the pipe coupling such that the gripping element engages the circumferential groove to secure the metal pipe in the pipe coupling. 19, De werkwijze van conclusie 18, waarbij de tweede afstand groter is dan de eerste afstand, en waarbij inbrengen van de metalen pijp omvat: inbrengen van de metalen pijp in de boring van de pijpkoppeling zodanig dat het eerste eind aanligt tegen de eerste interne schouder; en trekken van de metalen pijp in een richting tegengesteld aan de pijpinbrengrichting zodanig dat het grijpende element aangrijpt op de omtreksgroef om de metalen pijp in de pijpkoppeling te bevestigen.The method of claim 18, wherein the second distance is greater than the first distance, and wherein inserting the metal pipe comprises: inserting the metal pipe into the bore of the pipe coupling such that the first end abuts the first internal shoulder ; and pulling the metal pipe in a direction opposite to the pipe insertion direction such that the gripping element engages the circumferential groove to secure the metal pipe in the pipe coupling.
NL2028259A 2021-05-20 2021-05-20 Pipe coupling system and a method of connecting a metal pipe to a pipe coupling NL2028259B1 (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3447819A (en) * 1966-12-30 1969-06-03 Adolph W Borsum Push-pull connector having combined seal and locking ring
US4549576A (en) * 1981-09-11 1985-10-29 Amf Incorporated Quick disconnect marine coupling system
DE202007003054U1 (en) * 2007-02-28 2007-04-26 Friatec Ag Fitting system e.g. for tubing installation, has quick-connecting coupler having base with annular gap surrounding case which has radially movable multipart retaining element which rises into annular gap
WO2010136606A1 (en) 2009-05-29 2010-12-02 Wavin B.V. Release tool for a push-fit pipe fitting
US20180252347A1 (en) * 2017-03-06 2018-09-06 Ipex Technologies Inc. Releasable connect/disconnect fitting connection
DE102019107130A1 (en) * 2019-03-20 2020-09-24 Viega Technology Gmbh & Co. Kg Fitting with locking ring for permanent connection with at least one pipe

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3831611C2 (en) * 1988-09-17 1998-04-09 Manibs Spezialarmaturen Method for producing a transition coupling from a metal tube and a plastic tube with a sleeve
AU1405800A (en) * 1998-12-04 2000-06-26 Coda Limited A jointing system
EP2598786A4 (en) * 2010-07-26 2014-06-25 Swagelok Co Single axis push to connect conduit fitting

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3447819A (en) * 1966-12-30 1969-06-03 Adolph W Borsum Push-pull connector having combined seal and locking ring
US4549576A (en) * 1981-09-11 1985-10-29 Amf Incorporated Quick disconnect marine coupling system
DE202007003054U1 (en) * 2007-02-28 2007-04-26 Friatec Ag Fitting system e.g. for tubing installation, has quick-connecting coupler having base with annular gap surrounding case which has radially movable multipart retaining element which rises into annular gap
WO2010136606A1 (en) 2009-05-29 2010-12-02 Wavin B.V. Release tool for a push-fit pipe fitting
US20180252347A1 (en) * 2017-03-06 2018-09-06 Ipex Technologies Inc. Releasable connect/disconnect fitting connection
DE102019107130A1 (en) * 2019-03-20 2020-09-24 Viega Technology Gmbh & Co. Kg Fitting with locking ring for permanent connection with at least one pipe

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