WO2003052311A1 - Raccord de tuyauterie - Google Patents

Raccord de tuyauterie Download PDF

Info

Publication number
WO2003052311A1
WO2003052311A1 PCT/DE2002/004395 DE0204395W WO03052311A1 WO 2003052311 A1 WO2003052311 A1 WO 2003052311A1 DE 0204395 W DE0204395 W DE 0204395W WO 03052311 A1 WO03052311 A1 WO 03052311A1
Authority
WO
WIPO (PCT)
Prior art keywords
section
sealing element
cross
pipe connection
sectoral
Prior art date
Application number
PCT/DE2002/004395
Other languages
German (de)
English (en)
Inventor
Udo Simon
Bernd Sedlak
Original Assignee
Mapress Gmbh & Co. Kg
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 Mapress Gmbh & Co. Kg filed Critical Mapress Gmbh & Co. Kg
Priority to EP02792628A priority Critical patent/EP1454088A1/fr
Publication of WO2003052311A1 publication Critical patent/WO2003052311A1/fr

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
    • F16L13/142—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 with a sealing element inserted into the female part before crimping or rolling
    • 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
    • F16L13/148—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 specially designed to ensure an intended leakage until correct deformation
    • 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

Definitions

  • the invention relates to a pipe connection consisting of a metallic press fitting and a line pipe inserted therein according to the preamble of patent claim 1.
  • a sealing element has already been proposed (DE 19722935 C1), which has at least one section lying in the circumferential direction, which is provided with a cross section that deviates from the initial cross section. Preferably three sections lying symmetrically over the circumference with a different cross section are provided.
  • the deviating cross-section is characterized by a bulge which extends over the circumference and in the cross-sectional plane and a recess which faces the inserted conduit and extends radially into the cross-section of the sealing element.
  • the volume of the bulge in comparison to the initial cross section is at least as large as the volume of the recess missing from the initial cross section.
  • the recess of the sealing element forms a through opening for the medium in the axial direction.
  • the object of the invention is to provide a pipe connection with a press fitting and a conduit inserted therein, the sealing element of which is easy to manufacture and forms a leak when the pressure test is not pressed.
  • the sealing element has the same cross-section in all cross-sectional planes, which differs from the circular cross-section. Furthermore, the sealing element in the assembled but not pressed state - also taking into account the manufacturing tolerances for the sealing element, press fitting and conduit - is dimensioned and occupies a radial position with respect to the ring bead and conduit that there is a gap for the
  • Passage of the medium to be conveyed forms, which is sealed after the pressing.
  • a prerequisite for the proposed solution is that the permissible tolerances for the pairing of press fitting, sealing element and conduit are kept within narrow limits in order to be able to form a gap even in the case of an unfavorable overlap.
  • This pipe connection can be used for all types of press fittings made of metal, be it carbon steel, stainless steel, copper, copper alloys, brass or titanium.
  • An advantage of the proposed pipe connection can be seen in the fact that, with the exception of the sealing element, nothing needs to be changed in the basic design of the other elements and that the pressing tools which are in large numbers on the market can also be used unchanged.
  • the only condition is system conformity for the three interacting elements press fitting, sealing element and conduit, since the advantageous gap formation cannot be guaranteed when mixed with elements from other systems.
  • the sealing element In the assembled state, the sealing element preferably comes into contact with the inner wall of the annular bead at least at two circumferential positions, and the gap is formed between the sealing element and the outer surface of the pipe. Tests have shown that the volume of the bulge compared to the ideal circular cross section must be at least as large as the volume of the recess missing for the circular cross section.
  • the volume of the bulge is preferably at least 5% larger than that of the recess.
  • a profile which is similar to a somewhat flattened hose, has proven to be a favorable form for the different cross-section, the flattened side facing the conduit.
  • Figure 1 half-sided longitudinal section of a pipe connection in the assembled state before pressing with gap formation on the conduit
  • FIG. 2 shows an enlarged view of the annular bead area FIG. 3 like FIG. 2 but after the pressing
  • Figure 5b shows a section in the direction A - B in Figure 5a
  • Figure 5c shows the detail Z in Figure 5b
  • FIG. 1 shows a longitudinal section of a pipe connection designed according to the invention in the assembled state before the pressing.
  • the pipe connection shown here consists of a press fitting 1, the front end of which has an annular bead 2 with a sealing element 3 designed according to the invention, which can be inserted therein.
  • a smooth-ended conduit 4 the insertion direction 5 of which is indicated by an arrow, is inserted into the press fitting 1.
  • a cylindrical section 7 adjoins the ring bead 2 with an oblique transition 6.
  • This merges with a shoulder 8 into a second cylindrical section 9, the inside diameter 10 of which is smaller than the inside diameter 11 of the first cylindrical section 9.
  • the inserted conduit 4 comes to rest.
  • the annular bead 2 merges into an end region 12, the leg of which is almost perpendicular to the axis 13 of the conduit 4.
  • FIG. 2 shows an enlarged representation of the area of the annular bead 2, so that the design according to the invention can be seen more easily than in FIG. 1.
  • the inserted sealing element 3 comes into contact with the inner wall 14 of the annular bead 2 at least in two circumferential positions, in extreme cases only touching, as a rule with slight prestress.
  • the inserted pipe 4 has an outer diameter 15 with respect to the press fitting 1 and the sealing element 3, which, even taking into account the manufacturing tolerances for the press fitting 1, sealing element 3 and pipe 4, is always smaller than the inner diameter 16 of the inserted sealing element 3. This ensures that a gap 18 is formed between the outer surface 17 of the conduit 4 and the sealing element 3.
  • FIG. 4 shows a second embodiment of a press fitting 19 with the same gap formation in the same longitudinal section as FIG. 1, the same reference numerals being used for the same parts.
  • the press fitting 19 additionally has a third cylindrically shaped section 7b which faces the insertion direction 5.
  • the annular bead 2 has two adjoining oblique transitions 6a, 6b.
  • the inserted sealing element 3 comes into contact with the inner wall 14 of the annular bead 2 at least in a touching manner, as a rule, with slight prestressing.
  • a gap 18 is formed under the same conditions as previously explained in detail in FIG. 2.
  • FIGS. 5a to 5c show a top view, a section and an enlarged view of the sealing element 3 designed according to the invention.
  • the cross section deviating from the circular cross section resembles a somewhat flattened hose.
  • the cross-section is characterized by four sectoral sections I to IV, with sections II and III being double mirror images.
  • the first sectoral section I lies above the horizontal central axis 20 and symmetrically to the vertical central axis 21 with a circular contour, the center M of which is equal to the center of the sealing element 3.
  • the first sectoral section I has a radius R.
  • This first sectoral section I is adjoined on the right and left by a circular sectoral section II lying in the region of the horizontal central axis 20.
  • the center point M1 is offset twice from the center point M of the sealing element and the radius R1 is larger than the radius R of the first sectoral section I.
  • the cross section is also formed by two sectoral sections III lying on the right and left with a circular contour thereof Center points M2 likewise lie twice offset from the center point M of the sealing element 3 and whose radius R2 is smaller than the radius R of the first sectoral section I.
  • a sectoral section IV with a straight contour symmetrical to the vertical central axis 21 forms the lower end. All sectoral sections I to IV merge tangentially.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Abstract

La présente invention concerne un raccord de tuyauterie constitué d'un emmanchement à la presse métallique, qui présente au moins un segment conçu avec une section transversale de type boudin et logeant un élément d'étanchéité. Cet élément d'étanchéité (3) présente dans tous les plans de section transversale une même section transversale, différente de la section transversale circulaire idéale. Lorsqu'il est monté, mais pas comprimé, ledit élément d'étanchéité (3), en tenant compte des tolérances de fabrication pour l'élément d'étanchéité (3), l'emmanchement à la presse (1, 19) et le tuyau (4), est dimensionné de telle façon et adopte une position en direction radiale par rapport au boudin annulaire (2) et au tuyau (4) telle qu'il se forme un interstice (18) qui permet au milieu à transporter de transiter et qui est fermé de manière étanche après compression.
PCT/DE2002/004395 2001-12-14 2002-11-26 Raccord de tuyauterie WO2003052311A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP02792628A EP1454088A1 (fr) 2001-12-14 2002-11-26 Raccord de tuyauterie

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2001164568 DE10164568C1 (de) 2001-12-14 2001-12-14 Rohrverbindung
DE10164568.6 2001-12-14

Publications (1)

Publication Number Publication Date
WO2003052311A1 true WO2003052311A1 (fr) 2003-06-26

Family

ID=7711204

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2002/004395 WO2003052311A1 (fr) 2001-12-14 2002-11-26 Raccord de tuyauterie

Country Status (3)

Country Link
EP (1) EP1454088A1 (fr)
DE (1) DE10164568C1 (fr)
WO (1) WO2003052311A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9027966B2 (en) 2009-12-16 2015-05-12 Uponor Innovation Ab Fitting for a pipe
US9903515B2 (en) 2015-12-09 2018-02-27 Victaulic Company Seal with lip projections
US11320069B2 (en) 2019-07-22 2022-05-03 Parker-Hannifin Corporation Threaded coupling with under-torque prevention

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20300918U1 (de) 2003-01-22 2003-03-20 Franz Viegener II GmbH & Co. KG, 57439 Attendorn Pressverbindungsanordnung
DE102004016327A1 (de) * 2004-03-30 2005-11-03 Geberit Mapress Gmbh Pressfitting zur Herstellung einer Rohrverbindung
DE102004031045A1 (de) * 2004-06-25 2006-01-26 Stefan Henke Fitting
DE102005062738B4 (de) * 2005-12-22 2009-02-26 Geberit Technik Ag Verfahren zur Herstellung einer Rohrpressverbindung und Rohrpressverbindung
ATE413555T1 (de) * 2006-04-19 2008-11-15 Ibp Conex Ltd Dichtelement mit leckage-anzeige der unverpressten rohrverbindung und rohrverbindung mit einem solchen dichtelement
DE102006057721A1 (de) * 2006-12-01 2008-06-05 Geberit Technik Ag Rohrverbindung
ATE458952T1 (de) 2006-12-06 2010-03-15 Uponor Innovation Ab Fitting für ein rohr, insbesondere kunststoffrohr oder kunststoff-/metall-verbundrohr
DE102020107498A1 (de) 2020-03-18 2021-09-23 Conex Universal Limited Pressverbindungssystem mit Fittings, einem Presswerkzeug, Einsätzen dafür und einem Rohrsystem

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19722935C1 (de) * 1997-05-27 1998-07-09 Mannesmann Ag Preßfitting zur Herstellung einer unlösbaren Verbindung von Rohren
DE29813935U1 (de) * 1998-08-04 1998-10-01 Franz Viegener II GmbH & Co. KG, 57439 Attendorn Unlösbare Preßverbindung zwischen einem Fitting und einem Metallrohrende
DE10007914C1 (de) * 2000-02-21 2001-09-06 Franz Viegener Ii Gmbh & Co Kg Fitting oder Armatur zur Herstellung einer Pressverbindung mit einem eingesteckten Rohrende

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19722935C1 (de) * 1997-05-27 1998-07-09 Mannesmann Ag Preßfitting zur Herstellung einer unlösbaren Verbindung von Rohren
DE29813935U1 (de) * 1998-08-04 1998-10-01 Franz Viegener II GmbH & Co. KG, 57439 Attendorn Unlösbare Preßverbindung zwischen einem Fitting und einem Metallrohrende
DE10007914C1 (de) * 2000-02-21 2001-09-06 Franz Viegener Ii Gmbh & Co Kg Fitting oder Armatur zur Herstellung einer Pressverbindung mit einem eingesteckten Rohrende

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9027966B2 (en) 2009-12-16 2015-05-12 Uponor Innovation Ab Fitting for a pipe
US9903515B2 (en) 2015-12-09 2018-02-27 Victaulic Company Seal with lip projections
US10036494B2 (en) 2015-12-09 2018-07-31 Victaulic Company Seal with lip projections
US10408368B2 (en) 2015-12-09 2019-09-10 Victaulic Company Coupling having seal with lip projections
US11320069B2 (en) 2019-07-22 2022-05-03 Parker-Hannifin Corporation Threaded coupling with under-torque prevention

Also Published As

Publication number Publication date
EP1454088A1 (fr) 2004-09-08
DE10164568C1 (de) 2003-06-12

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