EP1373778A1 - Raccordement de tuyaux - Google Patents

Raccordement de tuyaux

Info

Publication number
EP1373778A1
EP1373778A1 EP02726210A EP02726210A EP1373778A1 EP 1373778 A1 EP1373778 A1 EP 1373778A1 EP 02726210 A EP02726210 A EP 02726210A EP 02726210 A EP02726210 A EP 02726210A EP 1373778 A1 EP1373778 A1 EP 1373778A1
Authority
EP
European Patent Office
Prior art keywords
pipe
group
smallest
fitting
pipe connection
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
EP02726210A
Other languages
German (de)
English (en)
Inventor
Franz-Josef Riesselmann
Peter Brägelmann
Guido KÖHLER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Viega GmbH and Co KG
Original Assignee
Uponor Innovation AB
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 Uponor Innovation AB filed Critical Uponor Innovation AB
Publication of EP1373778A1 publication Critical patent/EP1373778A1/fr
Ceased legal-status Critical Current

Links

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
    • F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
    • F16L13/14—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling
    • F16L13/141—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling by crimping or rolling from the outside
    • 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
    • F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
    • F16L33/20—Undivided rings, sleeves or like members contracted on the hose or expanded in the hose by means of tools; Arrangements using such members
    • F16L33/207—Undivided rings, sleeves or like members contracted on the hose or expanded in the hose by means of tools; Arrangements using such members only a sleeve being contracted on the hose
    • F16L33/2071—Undivided rings, sleeves or like members contracted on the hose or expanded in the hose by means of tools; Arrangements using such members only a sleeve being contracted on the hose the sleeve being a separate connecting member

Definitions

  • the invention relates to a pipe connection consisting of a fitting with a pipe connection part and a pressing or sliding sleeve and a composite pipe, which has at least one inner layer made of plastic and a surrounding diffusion barrier layer made of metal.
  • An outer layer made of plastic is usually arranged around the outside of the diffusion barrier layer.
  • Every provider of sanitary and radiator line systems sells different pipe dimensions to meet the hydraulic and thermal requirements of a pipe installation.
  • the pipe dimensions are based on the inside diameter of the pipes.
  • the outside diameters of the fitting pipe connection parts onto which the pipe to be connected is pushed are matched to this inside diameter.
  • the pipe end located on the pipe connection part is pressed against the pipe connection part by means of a pressing or sliding sleeve.
  • the table below shows the dimensions of the individual dimensions for a composite pipe system that are essential for the invention.
  • the composite pipe system described here as an example is used in a fitting with a pipe connection part which in this case has an outside diameter of 14.8 mm.
  • One with an inner diameter of 20.6 mm is then used as the press sleeve.
  • connection technology in question here, the pipe connection part of the fitting rests on the inside of the connection end of the composite pipe, as a result of which the internal cross section of the line is reduced, namely by twice the wall thickness of the pipe connection part.
  • This is associated with an increase in flow resistance and an additional pressure loss.
  • deposits can accumulate in the flow direction in front of the pipe connection part. All of this is sometimes undesirable, which applies in particular to gas application, that is to say when the pipe connection is used for gas lines.
  • connection end of a pipe by means of an expanding tool, namely essentially by the wall thickness of the pipe connection part of the fitting to be used.
  • the object of the invention is to create a pipe connection between a fitting and a pipe (plastic or plastic-metal composite pipe), the number of fittings assigned to the different pipe dimensions of the system being reduced and optionally working with or without a widened pipe connection end can be.
  • a pipe connection is provided with the invention, which is provided with a plastic pipe from a first group of pipes and a fitting which has a fitting body provided with a pipe connection part for connection to a pipe end from a second group of fitting bodies and an adapter sleeve for pressing the pipe end against the pipe connection part of the fitting body, the Pipes of the first group differ at least in their inner diameters, the fitting bodies of the second group differ at least in the outer diameters of their pipe connection parts, the pipe of the first group with the smallest inside diameter, the fitting body of the second group with the smallest outside part, the pipe of the is assigned to the first group with the second smallest inside diameter of the fitting body of the second group with the second smallest outside connection part in the outside diameter, the pipe end to be connected to the pipe connection part of a fitting body can be expanded such that the widened pipe end has an inside diameter which is substantially equal to the inside diameter of the pipe of the first group with the next larger inside diameter in relation to the pipe to be connected, and that the fitting is the
  • the installer has the option of connecting the pipes conventionally to a fitting, ie connecting to the fitting whose pipe connection part has an outside diameter corresponding to the inside diameter of the unexpanded pipe, or to widen the pipe ends in order to make use of the advantage described above. Despite these two options, the installer does not need to stock any further fittings.
  • the pipe to be used is expediently a plastic-metal composite pipe of the type described above.
  • the metal layer is formed by forming a metal band around the plastic inner pipe, this metal band being butt welded at its longitudinal edges. Overlapping welding or even gluing is also possible.
  • the integral connection at the longitudinal edges of the metal strip must be such that the longitudinal edges are still connected even if the connecting end of a composite pipe is widened to the inside diameter of the next larger dimension. This is ensured in particular when the metal strip is butt welded.
  • the expansion process reduces the thickness of the tube wall at the expanded end. Since the wall thickness of a pipe is generally less than the wall thickness of a pipe of the next largest dimension and, in addition, the wall thickness reduction described above takes place through the expansion process, it is generally not possible to use the press or push sleeve that corresponds to the dimension of the composite pipe is assigned to the inner diameter of the tube is expanded. Therefore, in an embodiment of the invention, an additional element, such as a compensating sleeve, is now used, which is inserted or inserted into the pressing or sliding sleeve of the next largest dimension, which results in a double sleeve construction. As an alternative to this, the procedure can also be such that the wall thickness of the pressing or sliding sleeve provided for pressing a tube widened at the end to the next larger dimension is increased.
  • Fig. 1 shows the ratios of the parts to be used of a pipe connection without expansion according to the invention
  • Fig. 2 shows the ratios of the parts to be used of a pipe connection with expansion according to the invention.
  • Fig. 2 shows that to avoid a narrowing of the cross-section in the area of the fitting when using a pipe of dimension 12, its connection end is widened to such an extent that it corresponds to dimension 15 (AE Dl ⁇ 5 ).
  • a fitting body F Di ⁇ 5 of pipe dimension 15 and a compression sleeve P D ( ⁇ 5 also of pipe dimension 15) can now be used as the fitting.
  • the reduction in wall thickness and the wall thickness difference of the pipes of dimensions 12 and 15 are indicated by a Compensating sleeve P A D II2 / IS compensated, which is inserted into the press sleeve P DI15 .

Abstract

L'invention concerne un raccordement de tuyaux dans lequel on utilise un tuyau dont l'extrémité de raccordement est fortement élargie, de sorte que le diamètre intérieur de cette extrémité de raccordement est identique au diamètre intérieur d'un tuyau de dimension immédiatement supérieure. Il est ainsi possible de réaliser un raccordement de tuyaux sans réduction de section et sans devoir utiliser des raccords de dimensions intermédiaires. Il est en outre possible d'appliquer un raccord qui s'utilise sur un tuyau de dimension immédiatement supérieure selon une technique de raccordement sans élargissement d'extrémité.
EP02726210A 2001-03-26 2002-03-26 Raccordement de tuyaux Ceased EP1373778A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10115006 2001-03-26
DE10115006 2001-03-26
PCT/EP2002/003369 WO2002077510A1 (fr) 2001-03-26 2002-03-26 Raccordement de tuyaux

Publications (1)

Publication Number Publication Date
EP1373778A1 true EP1373778A1 (fr) 2004-01-02

Family

ID=7679212

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02726210A Ceased EP1373778A1 (fr) 2001-03-26 2002-03-26 Raccordement de tuyaux

Country Status (2)

Country Link
EP (1) EP1373778A1 (fr)
WO (1) WO2002077510A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10134727B4 (de) * 2001-07-17 2004-11-18 Kermi Gmbh Verfahren zur Verbindung von Rohren und/oder Rohrformstücken
DE102008051284B3 (de) * 2008-10-10 2010-06-02 Uponor Innovation Ab Werkzeugvorrichtung zum Anschluss eines Kunststoffrohres
US11541581B2 (en) 2016-09-02 2023-01-03 Zurn Industries, Llc Injection molded cold-expansion compression collar
US11543065B2 (en) 2016-09-02 2023-01-03 Zurn Industries, Llc Extruded cold-expansion compression collar
US11054076B2 (en) 2016-11-04 2021-07-06 Zurn Industries, Llc Reinforcing ring with sleeve

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5243846A (en) * 1988-01-19 1993-09-14 The Gates Rubber Company Crimping apparatus with loading and unloading apparatus
DE19701414A1 (de) * 1997-01-17 1998-07-30 Siebe Automotive Deutschland Gmbh Verbindung zwischen Anschlußstutzen eines Motorkühlers und einem Kühlwasserrohr

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9307262U1 (fr) * 1993-05-13 1993-07-15 Hackforth Gmbh & Co Kg, 4690 Herne, De
EP1081423B1 (fr) * 1999-08-17 2001-03-28 Franz Viegener II GmbH & Co. KG. Procédé et pièce préformée pour la fabrication d'un raccord à compression entre deux tuyaux
DE20014786U1 (de) * 1999-08-31 2000-12-28 Hewing Gmbh Fitting für ein Kunststoffrohr oder ein Kunststoff/Metall-Verbundrohr
DE29920371U1 (de) * 1999-11-19 2000-01-20 Herz Armaturen Gmbh Anschlußelement

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5243846A (en) * 1988-01-19 1993-09-14 The Gates Rubber Company Crimping apparatus with loading and unloading apparatus
DE19701414A1 (de) * 1997-01-17 1998-07-30 Siebe Automotive Deutschland Gmbh Verbindung zwischen Anschlußstutzen eines Motorkühlers und einem Kühlwasserrohr

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO02077510A1 *

Also Published As

Publication number Publication date
WO2002077510A1 (fr) 2002-10-03

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