DE914085C - Pipe connection, especially on gas water heaters - Google Patents
Pipe connection, especially on gas water heatersInfo
- 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
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—Constructive types of pipe joints not provided for in groups F16L13/00 - F16L23/00 ; Details of pipe joints not otherwise provided for, e.g. electrically conducting or insulating means
- F16L25/02—Electrically insulating joints or couplings
- F16L25/021—Electrically insulating joints or couplings 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)
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)
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 part for pipeline has connector pieces passing through terminating elements in sealed manner with outer toroidal formation on ends engaging pipe section |
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)
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 |
-
1943
- 1943-02-13 DE DEV954D patent/DE914085C/en not_active Expired
Patent Citations (5)
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)
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 part for pipeline has connector pieces passing through terminating elements in sealed manner with outer toroidal formation on ends engaging pipe section |
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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