DE202007016637U1 - Pipe connection - Google Patents

Pipe connection

Info

Publication number
DE202007016637U1
DE202007016637U1 DE202007016637U DE202007016637U DE202007016637U1 DE 202007016637 U1 DE202007016637 U1 DE 202007016637U1 DE 202007016637 U DE202007016637 U DE 202007016637U DE 202007016637 U DE202007016637 U DE 202007016637U DE 202007016637 U1 DE202007016637 U1 DE 202007016637U1
Authority
DE
Germany
Prior art keywords
characterized
pipe
pipe connection
intermediate element
diameter extension
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.)
Expired - Lifetime
Application number
DE202007016637U
Other languages
German (de)
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.)
TUBE TECHNOLOGY SYSTEMS AG
Original Assignee
TUBE TECHNOLOGY SYSTEMS AG
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 TUBE TECHNOLOGY SYSTEMS AG filed Critical TUBE TECHNOLOGY SYSTEMS AG
Priority to DE202007016637U priority Critical patent/DE202007016637U1/en
Publication of DE202007016637U1 publication Critical patent/DE202007016637U1/en
Anticipated expiration legal-status Critical
Application status is Expired - Lifetime legal-status Critical

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L19/00Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
    • F16L19/02Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
    • F16L19/025Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the pipe ends having integral collars or flanges
    • F16L19/028Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the pipe ends having integral collars or flanges the collars or flanges being obtained by deformation of the pipe wall
    • F16L19/0286Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the pipe ends having integral collars or flanges the collars or flanges being obtained by deformation of the pipe wall and being formed as a flange
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L19/00Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
    • F16L19/04Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts using additional rigid rings, sealing directly on at least one pipe end, which is flared either before or during the making of the connection
    • F16L19/041Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts using additional rigid rings, sealing directly on at least one pipe end, which is flared either before or during the making of the connection the ring being an insert

Abstract

pipe connection for fastening at least one pipe end, which has a diameter extension has, at a connection part by means of a fastening element, characterized in that the diameter extension means an adhesive bond against rotation when tightening the fastener is secured.

Description

  • The The invention relates to a pipe joint of a diameter extension having pipe end of a pipe with a connection part and a fastener.
  • DE 195 23 287 C2 . DE 40 32 554 C2 and DE 40 30 484 A1 each describe a solution in which a branch pipe is connectable to a high-pressure fuel rail. In this case, the tube also has at its end to be connected to a diameter extension, which can be pressed by a nut or a union nut against a pressure receiving surface of a connection element, wherein there is a washer between the diameter extension of the tube and the end face of the nut or nut.
  • The Washer should obviously be damaged prevent or reduce the head part or the diameter extension. disadvantage of these solutions is that in the preparation of the compound depending on the materials used, possibly existing Coatings and surface roughness are the washer when tightening the pipe screw or nut, rotate undefined can and transfers unwanted torque to the pipe end, causing it to twist and undefined squeezes can be damaged. Another disadvantage is in the partial or complete abrasion of any existing coating due to the friction occurring.
  • In DE 24 07 268 A1 a pipe connection is described in which a connection between a connection body and a pipe is produced using a union nut and a metallic retaining ring. The tube has no diameter extension at its connection end. The metallic retaining ring has a stepped axial bore with circumferential teeth on the inner diameter, which interlock with the outer diameter of the tube. The outer, the teeth opposite area is frusto-conical and cooperates with an inner contact surface of the nut together. Furthermore, a toothing present in the end ring surface of the retaining ring cooperates with a toothing of the connection body. This solution is relatively expensive and affects the outer diameter of the tube over a relatively long range.
  • US 1,194,766 shows a lead pipe connection in which the pipe end has a diameter extension. Over the pipe end engages with a long cylindrical area a coupling sleeve, which rests with a collar on the diameter extension. The attachment to the connection head is made with a union nut, which engages with an inwardly directed paragraph on the collar of the coupling sleeve. The connection head has a profiling in the direction of the end face of the diameter extension of the tube resting against it, which ensures an anti-twist with the tube. This solution is also structurally complex.
  • Furthermore, the aforementioned pipe connections are either exclusively for connecting a pipe or gem. the in DE 44 25 827 A1 listed solution suitable only for connecting two pipes. Out EP 1624183 A1 is known a solution with which co-rotation of the pipe to be avoided when making the screw to avoid accidental loosening of the screw. For this purpose, the pipe connection device on at least one end formed as a bead end element, wherein the pipe at least partially surrounding separate pressure element is provided between the flange and a fitting, which rests against the flare back. When producing a screw connection of the fitting, the end face of the fitting acts on the flange by way of the pressure element and presses the sealing surface against the connection surface. In this case, the coefficient of friction of the contact between the sealing surface and the connection surface should be greater than the coefficient of friction of the contact of the pressure element and flange and greater than the coefficient of friction of the contact of the fitting and pressure element to prevent turning of the pipe when tightening the fitting. Since various factors influence the coefficients of friction, it may happen that the required friction coefficient conditions can not be met.
  • Out DE 1 843 459 A1 is a pipe joint is known, which should make it possible to stretch and seal smooth, fretless pipes and having a round cylindrical externally threaded connection body, which is provided with engagement surfaces for a key. The tube, which has no flare is connected at its end by gluing, welding or soldering to the connector body. The clamping and sealing of the pipes connected to the connector body by means of a union nut, in which an annular disc made of plastic is inserted and which is screwed to the connector body. At the connection body also another tube can be attached. The plastic ring disc can settle for prolonged use, whereby no more sealing effect is given.
  • The object of the invention is to develop a pipe connection, with which a functionally reliable pipe connection is ensured, the one with turning the tube avoids when tightening the connecting element and has a simple structural design.
  • These Task is according to the invention with the features of the 1st protection claim solved. Advantageous embodiments emerge from the dependent claims.
  • at the pipe connection according to the invention for attachment at least one pipe end, which has a diameter extension has, at a connection part by means of a fastening element is according to the invention the diameter extension by means of an adhesive bond against rotation when tightening the Secured fastener.
  • there can be the adhesive connection between connector and diameter extension consist. Alternatively, it is possible to add an extra Provide intermediate element, in which case the adhesive connection beforzugt between the intermediate element and the diameter extension and / or the intermediate element and the outer diameter of the first Tube can be formed.
  • The Intermediate element can be between the first diameter extension and the fastening part or between the connection element and the first Diameter extension be arranged or even between the first Diameter extension and a second diameter extension sitting a second tube end of a second tube.
  • Of the Adhesive or the adhesive layer is depending on the design the first and / or second diameter extension and / or the connection part and / or applied to the intermediate element or is supplied before assembly Der Glue is preferably made of instant adhesive, which immediately upon contact Makes connection. Alternatively, the adhesive layer can be encapsulated Adhesive included, only when tightening the fastener is released by the surface pressure acting on it and creates a material connection.
  • Preferably the intermediate element surrounds the tube and is in the form of a ring educated.
  • Especially points the intermediate element in the direction of the diameter extension a contact surface, which provided with an adhesive layer is and / or is the intermediate element at its inner diameter provided with an adhesive layer. The glue can, however be applied only during assembly.
  • to Ensuring unintentional release of the Fastening element, the intermediate element in the direction of the fastener with be provided a locking teeth.
  • Around a defined feed or an alignment of the intermediate element during assembly to avoid that the ratchet teeth on both End faces are provided.
  • Favorable Way ensures the adhesive layer in addition a seal of the pipe joint and can be elastic be.
  • It is possible, a first tube with a first diameter extension or a first pipe provided with a first diameter extension and / or a second tube having a second diameter extension comprises by means of an adhesive bond according to the invention cohesively and rotationally fixed to the connection part fasten, or with a corresponding intermediate element a cohesive Make connection.
  • With the solution according to the invention becomes a simple, reliable and reliable pipe connection created a damage to the pipe and a possibly existing coating safely avoids.
  • It is optionally possible one or two tubes with the To connect connecting part and thereby through the adhesive connection to prevent co-rotation of the pipe end (s).
  • investigations have shown that with the invention Solution best fitting properties with an optimal Force-torque curve can be achieved, which was previously not possible were.
  • There an exchange of appropriate pipe connections either by complete Renewal of the piping system (eg for brake lines) or sawed the pipe joints in case of partial damage and being replaced by completely new connections is not inevitably required, completely detachable connections manufacture. In particular, the use of pipe joints in Brake pipe systems is the invention Solution predestined.
  • The Invention will be described below with reference to embodiments and associated drawing explained in more detail. Show it:
  • 1 : Longitudinal section through a pipe joint for connection of the pipe end of a first tube using a first intermediate element in the screwed state, wherein the tube passes through the fastening part and between Zwi rule element and first diameter extension is an adhesive connection,
  • 1a : Longitudinal section through the first ring gem. 1 .
  • 2 FIG. 5: longitudinal section through a first ring, which has a locking toothing, FIG.
  • 3 : Longitudinal section through a pipe connection for connecting a first pipe end and a second pipe end without intermediate element.
  • 4 : Longitudinal section through a pipe connection for connecting a first pipe end and a second pipe end using an intermediate element.
  • In 1 and 3 pipe connections are shown, which is a connection part 1 and a fastener 2 and serve to connect a first pipe with a first pipe end R1 and / or a second pipe with a second pipe end R2. The attachment part 1 has a contact surface 1.1 and a bore having an inner diameter d1. To the contact surface 1.1 If necessary, the first or second pipe end R1, R2 can be joined using an annular intermediate element.
  • The longitudinal section through a pipe connection for connecting a first pipe end R1 using a connection part 1 , a fastener 2 in the form of a pipe screw and a first ring 3 is in 1 shown.
  • The first pipe end R1 has a first diameter extension R1.1 in the form of a flange and is frontally with the first diameter extension R1.1 to the contact surface 1.1 of the connection part 1 applied. The fastening part 2 points in the direction of the first diameter extension R1.1 a flat end surface 2.1 on and was here with its external thread 2.2 in the internal thread 1.2 of the connection part 1 screwed. Between the first diameter extension R1.1 of the tube R1 and the end face 2.1 of the fastening element 2 there is an intermediate element in the form of a ring 3 extending in the direction of the first diametric extension R1.1 a first end face 3.1 and toward the fastener 2 a second end face 3.2 having. Due to the inner diameter d2 of the fastener 2 and the inner diameter d3 of the first ring 3 extends the first pipe end R1. The first end face pointing in the direction of the first diametric extension R1.1 3.1 has an adhesive layer K on.
  • By acting in the axial direction tightening force F of the pipe connection was the first ring 3 by means of the connecting element 2 pressed against the first diameter extension R1.1, whereby by means of the adhesive between the first diameter extension R1.1 of the first tube R1 and the abutting end face 3.1 of the ring 3 A cohesive connection (adhesive bond) is produced .. Furthermore, the diameter extension R1.1 with its sealing surface sealing against the contact surface 1.1 of the connection part 1 pressed.
  • In 1a is the longitudinal section through the intermediate element 3 gem. 1 shown. The face 3.1 of the ring 3 is provided with an adhesive layer K.
  • Alternatively, gem. a variant, not shown, the intermediate element (the ring) in addition to its end face, which faces in the direction of the fastener to be provided with an adhesive layer having microencapsulations, wherein only after tightening the fastener, a material connection between the end face 3.2 of the ring 3 and the adjacent end face of the fastener is made. The microencapsulations open to this preferred only at a certain force or surface pressure.
  • 2 shows a longitudinal section through a ring 3 standing at the front 3.1 with a locking toothing 3.3 is provided as anti-rotation to the fastening part and there has no adhesive layer. The adhesive layer K is located on the end face 3.1 of the ring 3 ,
  • In 3 the longitudinal section through a pipe connection for connecting a first pipe end R1 and a second pipe end R2 is shown in the screwed state, wherein no intermediate element has been used. The second tube end R2 protrudes through an inner diameter d1 of the connection part 1 and lies with its second diameter extension R2.1 (in the form of a flare) on the contact surface 1.1 of the connection part 1 at. At the second diameter extension R2.1, the first diameter extension R1.1 of the first tube R1 connects, on which the fastener 3 acts. The cohesive connection is in this case by adhesive layers K between the contact surface 1.1 of the connection part 1 and the adjacent thereto second diameter extension R2.1 and between the second diameter extension R2.1 and the adjacent first diameter extension R1.1.
  • causing between the intermediate element 3 and the first diameter extension a cohesive connection (adhesive bond) is generated. This was before mounting the Bördel / the second diameter extension R2.1 of the second tube R2 completely coated with adhesive. The fastener 2 act directly on the first diameter extension R1.1 of the first tube R1. When tightening the fastener 2 the first tube R1 does not rotate with the adhesive bond.
  • The longitudinal section through a pipe connection for connecting a first pipe end R1 and a second pipe end R2 using an intermediate element 3 in the bolted state, shows 4 , The second pipe end R2 also projects through an inner diameter d1 of the connection part 1 and is also here with its second diameter extension R2.1 (in the form of a flare formed) on the contact surface 1.1 of the connection part 1 at. The second diameter extension R1.1 of the first tube R1, adjoining the second diameter extension R2.1, is followed by an intermediate element in the form of a ring 3 by the tightening force F of the fastener 3 acts, eliminating between the ring 3 and the first diameter extension R1.1 a cohesive connection (adhesive bond) is generated. The ring 3 was at his forehead 3.1 , which points in the direction of the first diameter extension R1.1, provided with an adhesive layer K. The ring 3 points here only in the direction of the fastener 2 on his face 3.2 a locking toothing 3.3 on. The locking teeth 3.3 acts unintentional release of the fastener 2 opposite.
  • The cohesive connection ensures that the first tube R1 when tightening the fastener 2 does not rotate and the sliding of the end face of the fastener 2 on the ring 3 ( 1 and 3 ) takes place, without turning the first tube R1.
  • According to an embodiment not shown, the intermediate element (the ring 3 ) When connecting 2 pipe ends between the diameter expansions be arranged, then preferably a cohesive connection is made to both pipe ends and the intermediate element is provided at its two end faces and possibly also at its inner diameter and / or its outer diameter with an adhesive layer.
  • Furthermore, the intermediate element 3 already before the production of the pipe connection with the pipe end, in particular with the diameter extension or the outer diameter of the tube, which adjoins the diameter extension, be pre-assembled by a material connection (gluing).
  • 1
    connector
    1.1
    contact surface
    1.2
    inner thread
    2
    fastener
    2.1
    End face of the fastener 2
    2.2
    external thread
    2.3
    chamfer
    3
    intermediate element
    3.1
    first face
    3.2
    second face
    3.3
    locking teeth
    d1
    Inner diameter of the connection part
    d2
    Inner diameter of the fastening part
    d3
    Inner diameter of the first ring 3
    F
    attractive force
    R1
    first pipe end
    R1.1
    first Diameter extension
    R2
    second pipe end
    R2.1
    second Diameter extension
  • QUOTES INCLUDE IN THE DESCRIPTION
  • This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
  • Cited patent literature
    • - DE 19523287 C2 [0002]
    • - DE 4032554 C2 [0002]
    • - DE 4030484 A1 [0002]
    • - DE 2407268 A1 [0004]
    • US 1194766 [0005]
    • - DE 4425827 A1 [0006]
    • - EP 1624183 A1 [0006]
    • - DE 1843459 A1 [0007]

Claims (14)

  1. Pipe connection for fastening at least one pipe end, which has an enlarged diameter, to a connection part by means of a fastening element, characterized in that the diameter extension is secured by means of an adhesive connection against rotation when tightening the fastening element.
  2. Pipe connection according to claim 1, characterized in that that between connection part and diameter extension an adhesive bond consists.
  3. Pipe connection according to one of the claims 1 or 2, characterized in that between an intermediate element and the diameter extension and / or the intermediate element and the outer diameter of the tube is an adhesive bond.
  4. Pipe connection according to one of the claims 1 to 3, characterized in that the intermediate element between the diameter extension and the fastening part is arranged.
  5. Pipe connection according to one of the claims 1 to 4, characterized in that the intermediate element between Connection element and diameter extension sits.
  6. Pipe connection according to one of the claims 1 to 5, characterized in that at the diameter extension and / or applied on the connecting part and / or on the intermediate element, an adhesive layer is.
  7. Pipe connection according to one of the claims 1 to 6, characterized in that the intermediate element in the direction for diameter enlargement of the pipe a contact surface which is coated with adhesive and / or that the intermediate element its inner diameter is coated with adhesive.
  8. Pipe connection according to one of the claims 1 to 7, characterized in that the intermediate element at both End faces coated with adhesive.
  9. Pipe connection according to one of the claims 1 to 8, characterized in that the adhesive layer encapsulated Adhesive contains, the only when tightening the fastener is released by the surface pressure (pressure) acting on it.
  10. Pipe connection according to one of the claims 3 to 9, characterized in that the intermediate element is the tube at least partially surrounded.
  11. Pipe connection according to one of the claims 3 to 10, characterized in that the intermediate element in shape a ring is formed.
  12. Pipe connection according to one of the claims 3 to 11, characterized in that the ring in the direction of first and / or second diameter extension a contact surface which is provided with an adhesive layer and / or that the diameter extension / s of the first and / or second tube an adhesive layer is / are provided.
  13. Pipe connection according to one of the claims 1 to 12, characterized in that the adhesive layer is a Seal ensured.
  14. Pipe connection according to one of the claims 1 to 13, characterized in that the adhesive layer elastic is.
DE202007016637U 2007-11-27 2007-11-27 Pipe connection Expired - Lifetime DE202007016637U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE202007016637U DE202007016637U1 (en) 2007-11-27 2007-11-27 Pipe connection

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202007016637U DE202007016637U1 (en) 2007-11-27 2007-11-27 Pipe connection
DE102008057425.2A DE102008057425B4 (en) 2007-11-27 2008-11-12 pipe connection

Publications (1)

Publication Number Publication Date
DE202007016637U1 true DE202007016637U1 (en) 2009-04-09

Family

ID=40530882

Family Applications (2)

Application Number Title Priority Date Filing Date
DE202007016637U Expired - Lifetime DE202007016637U1 (en) 2007-11-27 2007-11-27 Pipe connection
DE102008057425.2A Active DE102008057425B4 (en) 2007-11-27 2008-11-12 pipe connection

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE102008057425.2A Active DE102008057425B4 (en) 2007-11-27 2008-11-12 pipe connection

Country Status (1)

Country Link
DE (2) DE202007016637U1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016157004A1 (en) * 2015-03-31 2016-10-06 BSH Hausgeräte GmbH Main-gas-line arrangement and gas hob
CN106402530A (en) * 2016-10-31 2017-02-15 北京宇航系统工程研究所 Reusable sealing connection structure
EP3415800A1 (en) * 2017-06-14 2018-12-19 Bant Boru Sanayi Ve Ticaret Anonim Sirketi Tube connecting device

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1194766A (en) 1916-08-15 schttermann
DE2407268A1 (en) 1974-02-15 1975-08-21 Voss Armaturen Pipe connecting union with overthrow nut - has metal clamping ring for connected pipe with stepped axial bore
DE4030484A1 (en) 1989-09-27 1991-04-18 Usui Kokusai Sangyo Kk Verbindungsausfuehrung for a branching connector fuel rail high pressure in a
DE4032554C2 (en) 1989-10-14 1993-09-02 Usui Kokusai Sangyo Kaisha Ltd., Sunto, Shizuoka, Jp
DE4425827A1 (en) 1994-06-08 1995-12-14 Cohnen Beteiligungs Gmbh & Co Screw connection for spigot pipes
DE19523287C2 (en) 1994-06-28 1998-07-02 Usui Kokusai Sangyo Kk Arrangement for connecting a fuel feeder element with a fuel collecting rail
EP1624183A1 (en) 2004-08-03 2006-02-08 TI Automotive (Heidelberg) GmbH Duct connection arrangement
DE102004007199B4 (en) * 2004-02-13 2007-06-14 Veritas Ag Coupling for connecting lines

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1843459U (en) 1960-01-26 1961-12-14 Heinrich Hermanus Pipe connection.
DE19902732C2 (en) 1998-03-06 2003-05-28 Mapress Gmbh & Co Kg Device for connecting two line pipes of different line pipe systems
DE102005013859A1 (en) 2005-03-24 2006-10-05 Veritas Ag Arrangement with a tubular element
DE102006036862B4 (en) 2006-08-03 2008-11-06 Tube Technology Systems Ag Pipe connection and intermediate element for their production

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1194766A (en) 1916-08-15 schttermann
DE2407268A1 (en) 1974-02-15 1975-08-21 Voss Armaturen Pipe connecting union with overthrow nut - has metal clamping ring for connected pipe with stepped axial bore
DE4030484A1 (en) 1989-09-27 1991-04-18 Usui Kokusai Sangyo Kk Verbindungsausfuehrung for a branching connector fuel rail high pressure in a
DE4032554C2 (en) 1989-10-14 1993-09-02 Usui Kokusai Sangyo Kaisha Ltd., Sunto, Shizuoka, Jp
DE4425827A1 (en) 1994-06-08 1995-12-14 Cohnen Beteiligungs Gmbh & Co Screw connection for spigot pipes
DE19523287C2 (en) 1994-06-28 1998-07-02 Usui Kokusai Sangyo Kk Arrangement for connecting a fuel feeder element with a fuel collecting rail
DE102004007199B4 (en) * 2004-02-13 2007-06-14 Veritas Ag Coupling for connecting lines
EP1624183A1 (en) 2004-08-03 2006-02-08 TI Automotive (Heidelberg) GmbH Duct connection arrangement

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016157004A1 (en) * 2015-03-31 2016-10-06 BSH Hausgeräte GmbH Main-gas-line arrangement and gas hob
CN106402530A (en) * 2016-10-31 2017-02-15 北京宇航系统工程研究所 Reusable sealing connection structure
CN106402530B (en) * 2016-10-31 2018-11-23 北京宇航系统工程研究所 A kind of reusable Hermetical connecting structure
EP3415800A1 (en) * 2017-06-14 2018-12-19 Bant Boru Sanayi Ve Ticaret Anonim Sirketi Tube connecting device

Also Published As

Publication number Publication date
DE102008057425B4 (en) 2020-01-23
DE102008057425A1 (en) 2009-07-09

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