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DE914085C - Pipe connection, especially on gas water heaters - Google Patents

Pipe connection, especially on gas water heaters

Info

Publication number
DE914085C
DE914085C DEV954D DEV0000954D DE914085C DE 914085 C DE914085 C DE 914085C DE V954 D DEV954 D DE V954D DE V0000954 D DEV0000954 D DE V0000954D DE 914085 C DE914085 C DE 914085C
Authority
DE
Germany
Prior art keywords
pipe connection
intermediate piece
water heaters
gas water
pipe
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
Application number
DEV954D
Other languages
German (de)
Inventor
Siegfried Klemp
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.)
Vaillant GmbH
Original Assignee
Joh Vaillant GmbH and Co
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 Joh Vaillant GmbH and Co filed Critical Joh Vaillant GmbH and Co
Priority to DEV954D priority Critical patent/DE914085C/en
Application granted granted Critical
Publication of DE914085C publication Critical patent/DE914085C/en
Expired 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
    • F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
    • F16L15/006—Screw-threaded joints; Forms of screw-threads for such joints with straight threads
    • F16L15/008—Screw-threaded joints; Forms of screw-threads for such joints with straight threads with sealing rings
    • 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
    • F16L25/00—Construction or details of pipe joints not provided for in, or of interest apart from, groups F16L13/00 - F16L23/00
    • F16L25/02—Construction or details of pipe joints not provided for in, or of interest apart from, groups F16L13/00 - F16L23/00 specially adapted for electrically insulating the two pipe ends of the joint from each other
    • F16L25/021—Construction or details of pipe joints not provided for in, or of interest apart from, groups F16L13/00 - F16L23/00 specially adapted for electrically insulating the two pipe ends of the joint from each other for screw-threaded joints

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Joints With Pressure Members (AREA)

Description

Die Erfindung betrifft ein Verbindungselement für Rohrleitungen aus Metallen verschiedener Spannungsreihen, insbesondere in Durchlauferhitzern..The invention relates to a connecting element for pipelines Metals of different voltage series, especially in water heaters.

Der Erfindung liegt die Erkenntnis zugrunde, daß häufig beobachtete Korrosions- 'und Zersetzungserscheinungen an Rohrverbindungsstellen bei Gas-Wasserheizern darauf zurückzuführen sind, daß die Rohre ,aus. Metallen verschiedener Spannungsreihen bestehen. Erstellt man z. B. in einem Durchlauferhitzer die Kühlrohre eines Lamellenkörpers in Kupfer oder Messing und dien Wasserschalter aus verzinktem Eisen, so stellt sich bei einer metallischen Verbindung derselben bald eine Korrosion des Wasserschalters rein.The invention is based on the knowledge that frequently observed Corrosion and decomposition phenomena at pipe connection points in gas water heaters are due to the fact that the pipes, out. Metals of different voltage series exist. If you create z. B. in a water heater, the cooling tubes of a lamellar body in copper or brass and the water switch made of galvanized iron, so it turns out if they are made of metal, the water switch will soon corrode pure.

Das ist darauf zurückzuführen, daß insbesondere in Gegenwart von Wasser und Wärme elektrolytische Erscheinungen :auftreten, die eine allmähliche Zersetzung des unedleren Metalls zur Folge haben.This is due to the fact that especially in the presence of water and heat electrolytic phenomena: occur which have a gradual decomposition of the base metal.

Diese Mängel werden erfindungsgemäß dadurch beseitigt, daß ,die Rohrenden beiderseits mit einem nichtmetallischen, vorzugsweise aus Kunststoff hergestellten Zwischenstück verschraubt sind. Ein solches Zwischenstück übernimmt dabei zugleich zwei Funktionen, nämlich die Herstellung einer nichtleitenden Verbindung und die Verschraubung der Rohrenden.These shortcomings are eliminated according to the invention in that the pipe ends both sides with a non-metallic, preferably made of plastic Intermediate piece are screwed. Such an intermediate piece takes over at the same time two functions, namely the establishment of a non-conductive connection and the Screw connection of the pipe ends.

Ein Ausführungsbeispiel der Erfindung ist schematisch dargestellt. Eine Hülse i aus nichtmetallischem Werkstoff, z. B. Bakelit, ist beiderseitig mit Innengewinde versehen, und zwar an dem einen Ende, 2, mit Rechtsgewinde und an dem anderen Ende, 3, mit Linksgewinde. In dieser Hülse i ist ein in ihr verschiebbares Rohrstück 4 oder rein entsprechender Ansatz aus gleichem Werkstoff angeordnet. Beim Aufschrauben der Hülse i auf die mit entsprechenden Gewindeenden versehenen Rohre 5, 6 werden deren Stirnflächen 7, 7' gegen das Distanzstück 4 abdichtend angepreßt. Vorteilhaft kann man die Außenhülse an ihrem äußeren Umfang mit einer Handhabe ,ausstatten, mit deren Hilfe man die Verschraubung mit der Hand fest anziehen bzw. lösen kann, so daß ein besonderes Werkzeug bei der Montage bzw. Demontage überflüssig wird.An embodiment of the invention is shown schematically. A sleeve i made of non-metallic material, e.g. B. Bakelite, is on both sides with Internally threaded, at one end, 2, with right-hand thread and at the other end, 3, with left-hand thread. In this sleeve i is a displaceable in it Pipe section 4 or a purely corresponding approach made of the same material. At the Screw the sleeve i onto the pipes provided with the corresponding threaded ends 5, 6 whose end faces 7, 7 'are pressed against the spacer 4 in a sealing manner. The outer sleeve can advantageously be equipped with a handle on its outer circumference, with the help of which you can tighten or loosen the screw connection by hand, so that a special tool for assembly or disassembly is superfluous.

Claims (3)

PATENTANSPRÜCHE: i. Rohrverbindung, insbesondere an Gas-Wasserheizern, zwischen Rohren aus. Metallen verschiedener Spannungsreihen, dadurch gekennzeichnet, daß die Rohrenden (5, 6) beiderseits mit einem nichtmetallischen, vorzugsweise aus Kunststoff hergestellten Zwischenstück (i) verschraubt sind. PATENT CLAIMS: i. Pipe connection, especially on gas water heaters, between pipes. Metals of different voltage series, characterized by that the pipe ends (5, 6) on both sides with a non-metallic, preferably made Plastic-made intermediate piece (i) are screwed. 2. Rohrverbindung nach Anspruch i, dadurch gekennzeichnet, daß das Zwischenstück (i) an beiden Enden Gewinde (2,3) trägt; die zuein-,ander gegenläufig ausgebildet und mit entsprechenden Gewinden :an den Rohrenden (5, 6) im Eingriff sind. 2. Pipe connection according to claim i, characterized in that the intermediate piece (i) carries threads (2,3) at both ends; which are designed to run in opposite directions and with corresponding threads: are in engagement on the pipe ends (5, 6). 3. Rohrverbindung nach Anspruch 2, dadurch gekennzeichnet, daß sich die Stirnflächen (7, y') ,der Rohrenden (5, 6) beim Verschrauben mit .dem Zwischenstück (i) gegen einen Ansatz des Zwischenstückes bzw. gegen die Stirnflächen eines gesondert eingesetzten Distanzstückes (4) abdichtend anlegen. Angezogene Druckschriften: Deutsche Patentschriften Nr. 455 204, 689 184, 701 978; USA.-Patentschriften Nr. 2233734, 9o6 225.3. Pipe connection according to claim 2, characterized in that the end faces (7, y '), the pipe ends (5, 6) when screwing with .dem intermediate piece (i) against a shoulder of the intermediate piece or against the end faces of a separately inserted Place the spacer (4) in a sealing manner. Cited publications: German Patent Nos. 455 204, 689 184, 701 978; U.S. Patent Nos. 2233734,9o6,225 .
DEV954D 1943-02-13 1943-02-13 Pipe connection, especially on gas water heaters Expired DE914085C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEV954D DE914085C (en) 1943-02-13 1943-02-13 Pipe connection, especially on gas water heaters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV954D DE914085C (en) 1943-02-13 1943-02-13 Pipe connection, especially on gas water heaters

Publications (1)

Publication Number Publication Date
DE914085C true DE914085C (en) 1954-06-24

Family

ID=7569377

Family Applications (1)

Application Number Title Priority Date Filing Date
DEV954D Expired DE914085C (en) 1943-02-13 1943-02-13 Pipe connection, especially on gas water heaters

Country Status (1)

Country Link
DE (1) DE914085C (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1027477B (en) * 1956-05-25 1958-04-03 Nienburger Metallwarenfabrik A Pipe connector made of plastic
US3172934A (en) * 1965-03-09 Bonded coupling liner fabrication and installation process
DE1236876B (en) * 1961-05-17 1967-03-16 Reisholz Stahl & Roehrenwerk Pipe connection for metal pipes lined with plastic, especially steel pipes
DE1675689B1 (en) * 1963-09-26 1969-12-18 Siemens Ag Screw connection for two cylindrical parts, especially pipes
DE3041215A1 (en) * 1980-11-03 1982-05-13 Wayss & Freytag Ag, 6000 Frankfurt Socket with screw threads of opposite pitch - has threaded portions overlapping at middle
DE3741852A1 (en) * 1987-12-10 1989-06-29 Christoph Schuster Connecting element
DE19822366C1 (en) * 1998-05-19 1999-08-05 Messer Griesheim Schweistechni Clamping collar for connection between e.g. line and gas fittings
DE10025691A1 (en) * 2000-05-24 2001-11-29 Abb Patent Gmbh Insulating piece for a pipeline
WO2009004387A2 (en) * 2007-07-05 2009-01-08 National Oilwell Varco, L.P. A method and apparatus for inhibiting corrosion in strings of tubulars

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US906225A (en) * 1908-05-25 1908-12-08 Harry D C Harrison Pipe-coupling.
DE455204C (en) * 1924-12-08 1928-01-25 Emil Perman Equipment for the prevention of rust formation on the connecting pieces or connection pieces of pipelines as a result of electrolytic processes
DE689184C (en) * 1936-01-31 1940-03-13 Continental Gummi Werke Akt Ge Noise-dampening pipe adapter
DE701978C (en) * 1936-10-18 1941-01-28 Continental Gummi Werke Akt Ge Elastic pipe connection for fuel lines of internal combustion engines
US2233734A (en) * 1939-06-01 1941-03-04 Nat Tube Co Pipe joint

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US906225A (en) * 1908-05-25 1908-12-08 Harry D C Harrison Pipe-coupling.
DE455204C (en) * 1924-12-08 1928-01-25 Emil Perman Equipment for the prevention of rust formation on the connecting pieces or connection pieces of pipelines as a result of electrolytic processes
DE689184C (en) * 1936-01-31 1940-03-13 Continental Gummi Werke Akt Ge Noise-dampening pipe adapter
DE701978C (en) * 1936-10-18 1941-01-28 Continental Gummi Werke Akt Ge Elastic pipe connection for fuel lines of internal combustion engines
US2233734A (en) * 1939-06-01 1941-03-04 Nat Tube Co Pipe joint

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3172934A (en) * 1965-03-09 Bonded coupling liner fabrication and installation process
DE1027477B (en) * 1956-05-25 1958-04-03 Nienburger Metallwarenfabrik A Pipe connector made of plastic
DE1236876B (en) * 1961-05-17 1967-03-16 Reisholz Stahl & Roehrenwerk Pipe connection for metal pipes lined with plastic, especially steel pipes
DE1675689B1 (en) * 1963-09-26 1969-12-18 Siemens Ag Screw connection for two cylindrical parts, especially pipes
DE3041215A1 (en) * 1980-11-03 1982-05-13 Wayss & Freytag Ag, 6000 Frankfurt Socket with screw threads of opposite pitch - has threaded portions overlapping at middle
DE3741852A1 (en) * 1987-12-10 1989-06-29 Christoph Schuster Connecting element
DE19822366C1 (en) * 1998-05-19 1999-08-05 Messer Griesheim Schweistechni Clamping collar for connection between e.g. line and gas fittings
DE10025691A1 (en) * 2000-05-24 2001-11-29 Abb Patent Gmbh Insulating piece for a pipeline
US6685231B2 (en) 2000-05-24 2004-02-03 Abb Patent Gmbh Insulation piece for a pipeline
WO2009004387A2 (en) * 2007-07-05 2009-01-08 National Oilwell Varco, L.P. A method and apparatus for inhibiting corrosion in strings of tubulars
WO2009004387A3 (en) * 2007-07-05 2009-02-26 Nat Oilwell Varco Lp A method and apparatus for inhibiting corrosion in strings of tubulars
GB2462052A (en) * 2007-07-05 2010-01-27 Nat Oilwell Varco Lp A method and apparatus for inhibiting corrosion in strings of tubulars
GB2462052B (en) * 2007-07-05 2011-12-28 Nat Oilwell Varco Lp A method and apparatus for inhibiting corrosion in strings of tubulars

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