EP0036984A2 - Conduit distributor, especially for hot-water heating - Google Patents

Conduit distributor, especially for hot-water heating Download PDF

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Publication number
EP0036984A2
EP0036984A2 EP81101860A EP81101860A EP0036984A2 EP 0036984 A2 EP0036984 A2 EP 0036984A2 EP 81101860 A EP81101860 A EP 81101860A EP 81101860 A EP81101860 A EP 81101860A EP 0036984 A2 EP0036984 A2 EP 0036984A2
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EP
European Patent Office
Prior art keywords
distributor
pipe
reducers
return
connections
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.)
Withdrawn
Application number
EP81101860A
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German (de)
French (fr)
Other versions
EP0036984A3 (en
Inventor
Meinrad Grammer
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.)
Maile and Grammer Rohrverteilerbau GmbH
Original Assignee
Maile and Grammer Rohrverteilerbau GmbH
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.)
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Publication date
Application filed by Maile and Grammer Rohrverteilerbau GmbH filed Critical Maile and Grammer Rohrverteilerbau GmbH
Publication of EP0036984A2 publication Critical patent/EP0036984A2/en
Publication of EP0036984A3 publication Critical patent/EP0036984A3/en
Withdrawn legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D3/00—Hot-water central heating systems
    • F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
    • F24D3/1058—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system disposition of pipes and pipe connections
    • F24D3/1066—Distributors for heating liquids

Definitions

  • the invention relates to a pipeline distributor for supply and return lines, in particular for hot water heating systems, with an elongated distributor housing divided in the longitudinal direction by a wall into a flow space and a return space and with pipe connections leading outwards from the flow space and the return space.
  • Pipe distributors of the type mentioned above have already been proposed and are known from DE-PS 21 16 982.
  • the pipeline connections have a length which is dependent on the diameter of the distribution line to be connected and which is adapted to standardized system parts and are preferably designed as reducing attachments in which the line cross section is gradually increased to different standard cross sections at predetermined and adapted to other standard dimensions Pipe section is reduced.
  • the invention is based on the object, a pipeline distributor, in particular for smaller Hei to create systems in which the manufacture of the pipe connections is simplified and the changeover to different diameters of the connection pipes is simplified.
  • the object is achieved with a pipe distributor of the type mentioned in the present invention in that the pipe connections have a uniform length and a uniform diameter and are designed for releasably anchoring prefabricated different reducers of a given length.
  • the pipeline connections can be internally threaded sockets welded to the distributor housing and the reducers on both sides have externally threaded sections with different diameters and in between a conical reduction area and an attachment area for a tool.
  • the drawing shows a distributor housing 10 with a rectangular or square cross section, which is divided into an inlet space 12 and a return space 13 by an inner wall 11 running in the longitudinal direction.
  • the housing 10 can have a structure as described in the patent specification 21 16 982. Openings are formed at regular intervals on the top of the distributor housing 10, into which pipe connections 14, 15 and 16, which are designed as internally threaded sockets, are welded, all of which have the same diameter. Every second female thread sleeve is guided through the flow space 12 to an opening 17 in the inner wall 11, thus forming a pipe connection to the return space 13, while the adjacent pipe connections 14, 16 form connections to the flow space 12 of the distributor housing 10.
  • a first reducer 21 is arranged above the pipe connection 14, a second reducer 22 above the pipe connection 15 and a third reducer 23 above the pipe connection 16. All reducing. At its lower end, pieces 21-23 have an external thread section 24 which fits into the uniform internal thread of the pipe connections 14-16 and which has an annular groove into which a sealing ring 25 is inserted.
  • a tool attachment region 27 adjoins the external thread section 25 ending in an external flange 26 and is designed to be polygonal for the attachment of an open-end wrench in the reducers shown. However, the tool attachment area could also be cylindrical and with a longitudinal corrugation to attach pipe wrenches.
  • Each of the three reducers 21, 22, 23 has at its upper end an externally threaded section 28, 29 or 30, which differs in diameter from the individual reducers and allows the connection of different standard pipes.
  • the conical connection area 31, 32 or 33 of the individual reducers 21 - 23, which runs between the tool attachment area 27 and the upper external thread sections 28, 29 and 30, has different conicity.
  • the upper external thread section 28, 29 or 30 can be fitted with a sealing ring in a manner not shown.
  • the length of the reducers 21, 22, 23 can be the same or so different depending on the connection pipe diameter that when using commercially available or standardized sleeve shut-off devices the spindle height of these devices is the same in all parallel connection pipes.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Branch Pipes, Bends, And The Like (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)

Abstract

The invention relates to a conduit distributor for feed and return lines, in particular for hot-water heating. The conduit connections (14 - 16) which are guided outwards from an oblong distributor housing (10), which is divided into a feed chamber (12) and a return chamber (13) by an internal wall (11) running in the longitudinal direction, all have a common length and a common diameter. Connecting lines of different diameter are connected via prefabricated different reducing pieces (21 - 23) to the conduit connections (14 - 16) which are fed out of the distributor housing (10). <IMAGE>

Description

Die Erfindung betrifft einen Rohrleitungsverteiler für Vor- und Rücklaufleitungen, insbesondere für Warmwasserheizungen, mit einem in Längsrichtung durch eine Wand in einen Vorlaufraum und einen Rücklaufraum unterteilten langgestreckten Verteilergehäuse und mit aus dem Vorlaufraum und dem Rücklaufraum nach außen geführten Rohrleitungsanschlüssen.The invention relates to a pipeline distributor for supply and return lines, in particular for hot water heating systems, with an elongated distributor housing divided in the longitudinal direction by a wall into a flow space and a return space and with pipe connections leading outwards from the flow space and the return space.

Rohrleitungsverteiler der vorstehend genannten Art sind bereits vorgeschlagen worden und durch die DE-PS 21 16 982 bekannt. Bei diesem bekannten Rohrleitungsverteiler, der hervorragend geeignet ist, haben die Rohrleitungsanschlüsse eine vom Durchmesser der anzuschließenden Verteilerleitung abhängige und an genormte Anlagenteile angepaßte Länge und sind vorzugsweise als Reduzieraufsätze ausgebildet, bei denen der Leitungsquerschnitt stufenweise auf verschiedene Normquerschnitte in vorgegebenen und an weitere Normmaße angepaßten Abständen vom Rohrstück verringert ist.Pipe distributors of the type mentioned above have already been proposed and are known from DE-PS 21 16 982. In this known pipeline distributor, which is excellently suitable, the pipeline connections have a length which is dependent on the diameter of the distribution line to be connected and which is adapted to standardized system parts and are preferably designed as reducing attachments in which the line cross section is gradually increased to different standard cross sections at predetermined and adapted to other standard dimensions Pipe section is reduced.

Der Erfindung liegt nun die Aufgabe zugrunde, einen Rohrleitungsverteiler, insbesondere für kleinere Heizungsanlagen, zu schaffen, bei welchem die Herstellung der Rohrleitungsanschlüsse vereinfacht und die Umstellung auf unterschiedliche Durchmesser der Anschlußrohre vereinfacht sind.The invention is based on the object, a pipeline distributor, in particular for smaller Hei to create systems in which the manufacture of the pipe connections is simplified and the changeover to different diameters of the connection pipes is simplified.

Die gestellte Aufgabe wird mit einem Rohrleitungsverteiler der eingangs genannten Art erfindungsgemäß dadurch gelöst, daß die Rohrleitungsanschlüsse einheitliche Länge und einheitlichen Durchmesser aufweisen und zum lösbaren Verankern von vorgefertigten unterschiedlichen Reduzierstücken vorgegebener Länge ausgebildet sind. Vorteilhafterweise können hierbei die Rohrleitungsanschlüsse mit dem Verteilergehäuse verschweißte Innengewindemuffen sein und die Reduzierstücke an beiden Seiten Außengewindeabschnitte mit verschiedenen Durchmessern und dazwischen einen konischen Reduzierbereich und einen Ansatzbereich für ein Werkzeug aufweisen. Weitere vorteilhafte Merkmale des Erfindungsgegenstandes sind in Unteransprüchen aufgeführt.The object is achieved with a pipe distributor of the type mentioned in the present invention in that the pipe connections have a uniform length and a uniform diameter and are designed for releasably anchoring prefabricated different reducers of a given length. Advantageously, the pipeline connections can be internally threaded sockets welded to the distributor housing and the reducers on both sides have externally threaded sections with different diameters and in between a conical reduction area and an attachment area for a tool. Further advantageous features of the subject matter of the invention are set out in the subclaims.

Durch die angespannte Energiesituation bedingt werden auch bei kleineren Heizungsanlagen, beispielsweise durch den zusätzlichen Einsatz von Wärmepumpen und Solaranlagen, zusätzliche Rohranschlüsse oder Änderungen der Rohranschlußverteilung an Rohrleitungsverteileranlagen erforderlich. Diese Maßnahmen werden durch einen erfindungsgemäß ausgebildeten Rohrleitungsverteiler erleichtert. In die einheitlich ausgebildeten Rohrleitungsanschlüsse des Rohrleitungsverteilers lassen sich wahlweise unterschiedliche Reduzierstücke einsetzen, welche die Verbindung zu einem Vorlauf- oder Rücklaufrohr beliebigen Durchmessers erlauben. Durch die Ausbildung der Teile als Schraubverbindungsteile ist eine rasche Montage gewährleistet und lassen sich die Verbindungen bei Bedarf auch wieder leicht lösen. Bei der Kombination vorhandener Heizungsanlagen mit zusätzlichen Wärmeerzeugern, die zusammengeschaltet werden müssen, tritt häufiger als erwartet auch eine Umverteilung der Rohrleitungsanschlüsse auf, die sich an einem erfindungsgemäß ausgebildeten Rohrleitungsverteiler leicht durchführen läßt.Due to the tense energy situation, additional pipe connections or changes in the pipe connection distribution on pipeline distribution systems are also required for smaller heating systems, for example due to the additional use of heat pumps and solar systems. These measures are facilitated by a pipeline distributor designed according to the invention. Various reducers can be used in the uniformly designed pipe connections of the pipe distributor, which allow connection to a flow or return pipe of any diameter. The design of the parts as screw connection parts makes it quick Installation ensures and the connections can be easily detached if necessary. When existing heating systems are combined with additional heat generators that have to be connected together, a redistribution of the pipe connections occurs more frequently than expected, which can easily be carried out on a pipe distributor designed according to the invention.

Nachfolgend wird ein Ausführungsbeispiel des Erfindungsgegenstandes anhand der beiliegenden Zeichnung näher erläutert, die einen Teillängsschnitt durch einen Rohrleitungsverteiler mit einigen Rohrleitungsanschlüssen und verschiedenen Reduzierstücken zeigt.An exemplary embodiment of the subject of the invention is explained in more detail below with reference to the accompanying drawing, which shows a partial longitudinal section through a pipe distributor with some pipe connections and various reducers.

Die Zeichnung zeigt ein Verteilergehäuse 10 mit rechteckigem oder quadratischem Querschnitt, das durch eine innere, in Längsrichtung verlaufende Wandung 11 in einen Vorlaufraum 12 und einen Rücklaufraum 13 unterteilt ist. Das Gehäuse 10 kann einen Aufbau haben, wie er in der Patentschrift 21 16 982 beschrieben ist. Auf der Oberseite des Verteilergehäuses 10 sind in gleichmäßigen Abständen Öffnungen ausgebildet, in welche als Innengewindemuffen ausgebildete Rohrleitungsanschlüsse 14, 15 und 16 eingeschweißt sind, die alle den gleichen Durchmesser haben. Jede zweite Innengewindemuffe ist durch den Vorlaufraum 12 hindurch bis zu einer Öffnung 17 in der Innenwandung 11 geführt, bildet also einen Rohrleitungsanschluß zum Rücklaufraum 13, während die benachbarten Rohrleitungsanschlüsse 14, 16 Anschlüsse zum Vorlaufraum 12 des Verteilergehäuses 10 bilden. In der Zeichnung sind noch ein seitlicher Vorlauf-Rohrleitungsanschluß 18, ein kleinerer Rohrleitungsanschluß 19 für eine Entleerungsleitung und ein unterer Rücklauf-Rohrleitungsanschluß 20 eingezeichnet.The drawing shows a distributor housing 10 with a rectangular or square cross section, which is divided into an inlet space 12 and a return space 13 by an inner wall 11 running in the longitudinal direction. The housing 10 can have a structure as described in the patent specification 21 16 982. Openings are formed at regular intervals on the top of the distributor housing 10, into which pipe connections 14, 15 and 16, which are designed as internally threaded sockets, are welded, all of which have the same diameter. Every second female thread sleeve is guided through the flow space 12 to an opening 17 in the inner wall 11, thus forming a pipe connection to the return space 13, while the adjacent pipe connections 14, 16 form connections to the flow space 12 of the distributor housing 10. In the drawing, there is also a lateral flow pipe connection 18 and a smaller pipe connection 19 drawn for a drain line and a lower return pipe connection 20.

In die Rohrleitungsanschlüsse lassen sich wahlweise verschiedene Reduzierstücke einsetzen, von denen in der Zeichnung drei dargestellt sind. Ein erstes Reduzierstück 21 ist oberhalb des Rohrleitungsanschlusses 14, ein zweites Reduzierstück 22 oberhalb des Rohrleitungsanschlusses 15 und ein drittes Reduzierstück 23 oberhalb des Rohrleitungsanschlusses 16 angeordnet. Alle Reduzier- . stücke 21 - 23 weisen an ihrem unteren Ende einen in die einheitlichen Innengewinde der Rohrleitungsanschlüsse 14 - 16 passenden Außengewindeabschnitt 24 auf, der eine Ringnut besitzt, in welche ein Dichtungsring 25 eingelegt ist. An den in einem Außenflansch 26 endenden Außengewindeabschnitt 25 schließt sich ein Werkzeug-Ansatzbereich 27 an, der bei den dargestellten Reduzierstücken für den Ansatz eines Maulschlüssels polygonal ausgebildet ist. Der Werkzeug-Ansatzbereich könnte aber auch zylindrisch und mit einer Längsriffelung zum Ansatz von Rohrzangen gestaltet sein.Various reducers can be used in the pipe connections, three of which are shown in the drawing. A first reducer 21 is arranged above the pipe connection 14, a second reducer 22 above the pipe connection 15 and a third reducer 23 above the pipe connection 16. All reducing. At its lower end, pieces 21-23 have an external thread section 24 which fits into the uniform internal thread of the pipe connections 14-16 and which has an annular groove into which a sealing ring 25 is inserted. A tool attachment region 27 adjoins the external thread section 25 ending in an external flange 26 and is designed to be polygonal for the attachment of an open-end wrench in the reducers shown. However, the tool attachment area could also be cylindrical and with a longitudinal corrugation to attach pipe wrenches.

Jedes der drei Reduzierstücke 21, 22, 23 weist an seinem oberen Ende einen Außengewindeabschnitt 28, 29 oder 30 auf, der sich unter den einzelnen Reduzierstücken durch seinen Durchmesser unterscheidet und den Anschluß unterschiedlicher Normrohre erlaubt. Entsprechend dem unterschiedlichen Durchmesser der oberen Außengewindeabschnitte 28, 29 und 30 hat auch der konische Verbindungsbereich 31, 32 oder 33 der einzelnen Reduzierstücke 21 - 23, der zwischen dem Werkzeug-Ansatzbereich 27 und den oberen Außengewindeabschnitten 28, 29 und 30 verläuft, unterschiedliche Konizität. Auch der obere Außengewindeabschnitt 28, 29 oder 30 kann in nicht dargestellter Weise mit einem Dichtungsring besetzt sein.Each of the three reducers 21, 22, 23 has at its upper end an externally threaded section 28, 29 or 30, which differs in diameter from the individual reducers and allows the connection of different standard pipes. Corresponding to the different diameter of the upper external thread sections 28, 29 and 30, the conical connection area 31, 32 or 33 of the individual reducers 21 - 23, which runs between the tool attachment area 27 and the upper external thread sections 28, 29 and 30, has different conicity. Also the upper external thread section 28, 29 or 30 can be fitted with a sealing ring in a manner not shown.

Die Länge der Reduzierstücke 21, 22, 23 kann gleich oder aber in Abhängigkeit vom Anschlußrohrdurchmesser so unterschiedlich sein, daß bei Verwendung handelsüblicher oder genormter Muffenabsperrorgane die Spindelhöhe dieser Organe in allen parallelen Anschlußrohren die gleiche ist.The length of the reducers 21, 22, 23 can be the same or so different depending on the connection pipe diameter that when using commercially available or standardized sleeve shut-off devices the spindle height of these devices is the same in all parallel connection pipes.

Claims (5)

1. Rohrleitungsverteiler für Vor- und Rücklaufleitungen, insbesondere für Warmwasserheizungen, mit einem in Längsrichtung durch eine Innenwandung in einen Vorlaufraum und einen Rücklaufraum unterteilten langgestreckten Verteilergehäuse und mit aus dem Vorlaufraum und dem Rücklaufraum nach außen geführten Rohrleitungsanschlüssen, dadurch gekennzeichnet, daß die Rohrleitungsanschlüsse (14, 15, 16) einheitliche Länge und einheitliche Durchmesser aufweisen und zum lösbaren Verankern von vorgefertigten unterschiedlichen Reduzierstücken (21, 22, 23) vorgegebener Länge ausgebildet sind.1.Pipe distributor for supply and return lines, in particular for hot water heating systems, with an elongated distributor housing which is divided in the longitudinal direction by an inner wall into a flow space and a return space and with pipe connections leading outwards from the flow space and the return space, characterized in that the pipe connections (14 , 15, 16) have a uniform length and a uniform diameter and are designed for releasably anchoring prefabricated different reducers (21, 22, 23) of a given length. 2. Rohrleitungsverteiler nach Anspruch 1, dadurch gekennzeichnet, daß die Rohrleitungsanschlüsse (14, 15, 16, 18, 20) mit dem Verteilergehäuse (10) verschweißte Innengewindemuffen sind und die Reduzierstücke (21, 22, 23) an beiden Enden Außengewindeabschnitte (24; 28, 29, 30) mit verschiedenen Durchmessern und dazwischen einen konischen Reduzierbereich (31, 32, 33) und einen Ansatzbereich (27) für ein Werkzeug aufweisen.2. Pipe distributor according to claim 1, characterized in that the pipe connections (14, 15, 16, 18, 20) with the distributor housing (10) are welded internal thread sockets and the reducers (21, 22, 23) at both ends of external thread sections (24; 28, 29, 30) with different diameters and in between a conical reduction area (31, 32, 33) and a shoulder area (27) for a tool. 3. Rohrleitungsverteiler nach Anspruch 1 und 2, dadurch gekennzeichnet, daß mindestens im verteilerseitigen Außengewindeabschnitt (24) der Reduzierstücke (21, 22, 23) eine Ringnut zur Aufnahme eines Dichtungsringes (25) ausgebildet ist.3. Pipe distributor according to claim 1 and 2, characterized in that an annular groove for receiving a sealing ring (25) is formed at least in the distributor-side external thread section (24) of the reducers (21, 22, 23). 4. Reduzierbereich nach Anspruch 2, dadurch gekennzeichnet, daß der Werkzeug-Ansatzbereich (27) der Reduzierstücke (21, 22, 23) einen polygonalen Querschnitt aufweist.4. Reduction area according to claim 2, characterized in that the tool attachment area (27) of the reducers (21, 22, 23) has a polygonal cross section. 5. Rohrleitungsverteiler nach Anspruch 2, dadurch gekennzeichnet, daß der Werkzeug-Ansatzbereich (27) der Reduzierstücke (21 - 23) ein zylindrischer Abschnitt mit einer Längsriffelung ist.5. Pipe distributor according to claim 2, characterized in that the tool attachment area (27) of the reducers (21-23) is a cylindrical section with a longitudinal corrugation.
EP81101860A 1980-04-02 1981-03-13 Conduit distributor, especially for hot-water heating Withdrawn EP0036984A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3012854 1980-04-02
DE19803012854 DE3012854A1 (en) 1980-04-02 1980-04-02 PIPELINE DISTRIBUTORS, ESPECIALLY FOR HOT WATER HEATERS

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Publication Number Publication Date
EP0036984A2 true EP0036984A2 (en) 1981-10-07
EP0036984A3 EP0036984A3 (en) 1982-07-21

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EP81101860A Withdrawn EP0036984A3 (en) 1980-04-02 1981-03-13 Conduit distributor, especially for hot-water heating

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DE (1) DE3012854A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT393310B (en) * 1990-03-08 1991-09-25 Vaillant Gmbh CONNECTING DEVICE ON A CONTAINER
US6839966B2 (en) * 2000-09-21 2005-01-11 Kakinuma Kinzoku Seiki Co., Ltd. Branch pipe joint and method of connecting pipes using the pipe joint
GB2421279A (en) * 2004-12-15 2006-06-21 Apiro Autostyle Ltd I.c. engine air intake pipe with interchangeable fittings and adaptors
EP2157462A1 (en) 2008-08-22 2010-02-24 Pulsion Medical Systems AG Fiber-optic probe

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3262503D1 (en) * 1981-11-19 1985-04-11 Meinrad Grammer Pipe manifold with distributor and accumulator compartment
DE3928731A1 (en) * 1989-08-30 1991-03-07 Milutin Drljevic HEATING AND BOILER DISTRIBUTOR
DE20010701U1 (en) 2000-06-15 2001-10-31 Comfort-Sinusverteiler GmbH & Co. KG, 48493 Wettringen Pipe distributor, especially for heating systems
DE202005003778U1 (en) 2005-03-09 2005-07-07 Comfort Sinusverteiler Gmbh Pipe distributors, in particular for heating systems

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1191066A (en) * 1958-02-04 1959-10-16 Tubular connector
DE2231112A1 (en) * 1971-06-25 1973-01-11 Einar Ludvigsen PIPE MANIFOLD
FR2140883A5 (en) * 1971-06-09 1973-01-19 Carpano & Pons
DE2116982C3 (en) * 1971-04-07 1974-08-29 Meinrad 7241 Ergenzingen Grammer Pipeline distribution system for supply and return lines, in particular for hot water heating systems
CH568521A5 (en) * 1973-03-14 1975-10-31 Gustavsbergs Fabriker Ab
DE2741727A1 (en) * 1977-09-16 1979-03-29 Ernst Sauter PIPE DISTRIBUTORS, IN PARTICULAR FOR FLOW AND RETURN OF HOT WATER HEATERS
DE2806629B1 (en) * 1978-02-16 1979-05-03 Hubert Wessels Pipe distributor for central heating systems

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1191066A (en) * 1958-02-04 1959-10-16 Tubular connector
DE2116982C3 (en) * 1971-04-07 1974-08-29 Meinrad 7241 Ergenzingen Grammer Pipeline distribution system for supply and return lines, in particular for hot water heating systems
FR2140883A5 (en) * 1971-06-09 1973-01-19 Carpano & Pons
DE2231112A1 (en) * 1971-06-25 1973-01-11 Einar Ludvigsen PIPE MANIFOLD
CH568521A5 (en) * 1973-03-14 1975-10-31 Gustavsbergs Fabriker Ab
DE2741727A1 (en) * 1977-09-16 1979-03-29 Ernst Sauter PIPE DISTRIBUTORS, IN PARTICULAR FOR FLOW AND RETURN OF HOT WATER HEATERS
DE2806629B1 (en) * 1978-02-16 1979-05-03 Hubert Wessels Pipe distributor for central heating systems

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT393310B (en) * 1990-03-08 1991-09-25 Vaillant Gmbh CONNECTING DEVICE ON A CONTAINER
US6839966B2 (en) * 2000-09-21 2005-01-11 Kakinuma Kinzoku Seiki Co., Ltd. Branch pipe joint and method of connecting pipes using the pipe joint
GB2421279A (en) * 2004-12-15 2006-06-21 Apiro Autostyle Ltd I.c. engine air intake pipe with interchangeable fittings and adaptors
EP2157462A1 (en) 2008-08-22 2010-02-24 Pulsion Medical Systems AG Fiber-optic probe

Also Published As

Publication number Publication date
DE3012854A1 (en) 1981-10-08
EP0036984A3 (en) 1982-07-21

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