EP1405005A1 - Insulated heating and/or sanitation pipe - Google Patents

Insulated heating and/or sanitation pipe

Info

Publication number
EP1405005A1
EP1405005A1 EP02747461A EP02747461A EP1405005A1 EP 1405005 A1 EP1405005 A1 EP 1405005A1 EP 02747461 A EP02747461 A EP 02747461A EP 02747461 A EP02747461 A EP 02747461A EP 1405005 A1 EP1405005 A1 EP 1405005A1
Authority
EP
European Patent Office
Prior art keywords
pipe
corrugated
tube
heating
metal
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Withdrawn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
EP02747461A
Other languages
German (de)
French (fr)
Inventor
Jörg Claussen
Hans-Joachim DUSÖR
Jörg Hansen
Jury JÄRVENKYLA
Franz-Josef Riesselmann
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.)
Uponor Innovation AB
Original Assignee
Uponor Innovation AB
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 Uponor Innovation AB filed Critical Uponor Innovation AB
Publication of EP1405005A1 publication Critical patent/EP1405005A1/en
Withdrawn legal-status Critical Current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
    • F16L59/00—Thermal insulation in general
    • F16L59/14—Arrangements for the insulation of pipes or pipe systems
    • F16L59/143—Pre-insulated pipes
    • 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
    • F16L59/00—Thermal insulation in general
    • F16L59/14—Arrangements for the insulation of pipes or pipe systems
    • F16L59/153—Arrangements for the insulation of pipes or pipe systems for flexible pipes

Definitions

  • the invention relates to a fluid-carrying and in particular water-carrying pipe with thermal insulation, which can be used in particular in the heating and / or sanitary sector.
  • Heating pipes require a diffusion barrier so that no oxygen can get through the wall of the pipe from the outside.
  • the fluid-carrying pipe is made of plastic, it is provided with a diffusion barrier layer made of, for example, EVOH.
  • a diffusion barrier layer made of, for example, EVOH.
  • Such a pipe is used for insulation purposes of thermal insulation material, e.g. Surrounded by PE or PUR foam, whereby this insulation layer is surrounded by a plastic outer jacket, which is usually designed as a corrugated pipe.
  • thermal insulation material e.g. Surrounded by PE or PUR foam
  • the invention is based on the object of creating an insulated heating and / or sanitary pipe with an inner pipe structure, for the production of which standard pipe components can be used.
  • an insulated heating and / or sanitary pipe which is provided with an inner pipe made of a plastic material, a corrugated pipe made of metal surrounding the inner pipe at a radial distance, a compressible and / or expanded material between the inner tube and the corrugated tube for fixing the inner tube within the corrugated tube, the compressible and / or expanded material for exposing a connection end of the inner tube being detachable therefrom, an insulation layer surrounding the metal corrugated tube and an outer jacket around the insulation layer.
  • the heating and / or sanitary pipe has an inner pipe made of plastic, which e.g. Oxygen or, generally speaking, gas permeable, but need not be.
  • an inner pipe made of plastic, which e.g. Oxygen or, generally speaking, gas permeable, but need not be.
  • this is surrounded by a corrugated metal tube.
  • the space between the two is filled with a compressible and / or expanded material.
  • This material can be detached from the plastic material of the same for exposing a connection end of the inner tube, in a simple manner and in particular manually, so that the compressible and / or expanded material at the connection end of the inner tube can be removed by, for example, introducing a radial circumferential incision. So now you can get to the exposed
  • connection end of the inner tube Connect a commercially available fitting, for example a press fitting, to the connection end of the inner tube.
  • thermo insulation material PE or PUR foam
  • an outer jacket in the form of e.g. a plastic corrugated tube is surrounded.
  • the advantage of the invention is to be seen in the fact that the inner tube structure is oxygen and water vapor tight due to the metal corrugated tube, so that no moisture can get into the insulation layer. Due to the flexibility of the Entire pipe due to the metal corrugated pipe, the pipe can be easily installed as well as wound up and unwound.
  • a lengthening of the inner tube is counteracted by the tube structure according to the invention, since this is held by the inner tube and the outer tube via the material.
  • the linear expansion of the entire pipe is thus determined by the linear expansion of the metal outer pipe.
  • the installation of the pipe according to the invention can be simplified since the overall pipe can be plastically deformed due to the metallic outer (corrugated) pipe.
  • the compressible and / or expanded elastic, flexible material is in particular a foam material.
  • the permeability tightness in the heating and / or sanitary pipe according to the invention is achieved by the corrugated metal pipe, for which it does not matter whether the plastic inner pipe is already gas-impermeable.
  • the production of corrugated metal is a common and common process.
  • the metal corrugated pipe can be welded in the form of a longitudinal seam or spiral, or the corrugated pipe structure is realized by shaping a (smooth) metal pipe with subsequent deformation to form the corrugated pipe.
  • a pipe made of plastic material that is customary for pipe use, for example PP or PE can be used as the actual media-carrying inner pipe.
  • the invention is explained in more detail below with reference to the drawing, which shows a section through a heating and / or sanitary pipe according to the invention, shown in perspective.
  • the heating and / or sanitary pipe 10 has an inner pipe 12 made of plastic, in particular cross-linked plastic, which is surrounded at a radial distance r by a corrugated pipe 14 made of metal, in particular aluminum.
  • a compressible and / or expanded foam material 16 is used to fix the inner tube 12 within the corrugated tube 14 and fills the space formed by the radial distance r.
  • the foam material 16 can be easily detached from the inner pipe 12 to expose a connection end of the inner pipe 12 to be connected, for example, to a fitting, in particular detachable without residue.
  • the inner tube 12 is fixed within the corrugated tube 14 by the foam material 16.
  • the corrugated tube 14 serves as a water vapor and / or oxygen barrier (the latter in particular when the plastic inner tube 12 does not have an oxygen diffusion barrier layer, for example made of EVOH) and gives the entire tube 10 the necessary permeation tightness.
  • the inner tube structure described above is surrounded by a heat insulation layer 18, around which an outer jacket 20 made of plastic and designed as a corrugated tube is arranged. Due to the vapor barrier as a result of the metallic material of the corrugated tube 14, no moisture reaches the heat insulation layer 18 from the inner tube 12, as a result of which the tube 10 maintains its insulation properties over its service life.

Abstract

The heating and/or sanitation pipe comprises an inner pipe (12) made of a plastic material and a corrugated metal pipe (14) surrounding the inner pipe at a radial distance (r) therefrom. The heating and/or sanitation pipe is also provided with a compressible and/or expanded material between the inner pipe (12) and the corrugated pipe (14) in order to fix the inner pipe (12) inside the corrugated pipe (14). The compressible and/or expanded material (16) can be detached therefrom in order to reveal a connecting end of the inner pipe (12). The heating and/or sanitation pipe also comprises an insulating layer surrounding the corrugated metal pipe (14) and an outer covering (20) surrounding the insulating layer (18).

Description

Isoliertes Heizungs- und/oder Sanitärrohr Insulated heating and / or sanitary pipe
Die Erfindung betrifft ein Fluid führendes und insbesondere Wasser führendes Rohr mit Wärmeisolation, das insbesondere im Heizungs- und/oder Sanitärbereich einsetzbar ist.The invention relates to a fluid-carrying and in particular water-carrying pipe with thermal insulation, which can be used in particular in the heating and / or sanitary sector.
Heizungsrohre benötigen eine Diffusionssperre, damit von außen durch die Wandung des Rohres kein Sauerstoff gelangen kann. Wenn das Fluid führende Rohr aus Kunststoff besteht, so wird dieser mit einer Diffusionssperrschicht aus beispielsweise EVOH versehen. Alternativ dazu bietet es sich an, das Kunststoff röhr mit einer Metallschicht aus insbesondere Aluminium zu um- manteln. Beide Herstellungsprozesse erfordern spezielle Arbeitsschritte, die mitunter aufwändig sein können.Heating pipes require a diffusion barrier so that no oxygen can get through the wall of the pipe from the outside. If the fluid-carrying pipe is made of plastic, it is provided with a diffusion barrier layer made of, for example, EVOH. Alternatively, it is a good idea to cover the plastic tube with a metal layer made of aluminum in particular. Both manufacturing processes require special work steps, which can sometimes be complex.
Ein solches Rohr ist zu Isolationszwecken von Wärmedämmmaterial, z.B. PE- oder PUR-Schaum umgeben, wobei diese Isolationsschicht von einem Kunst- stoffaußenmantel umgeben ist, der zumeist als Wellrohr ausgeführt ist.Such a pipe is used for insulation purposes of thermal insulation material, e.g. Surrounded by PE or PUR foam, whereby this insulation layer is surrounded by a plastic outer jacket, which is usually designed as a corrugated pipe.
Der Erfindung liegt die Aufgabe zu Grunde, ein isoliertes Heizungs- und/oder Sanitärrohr mit einem Innenrohraufbau zu schaffen, für dessen Herstellung auf Standardrohrkomponenten zurückgegriffen werden kann.The invention is based on the object of creating an insulated heating and / or sanitary pipe with an inner pipe structure, for the production of which standard pipe components can be used.
Zur Lösung dieser Aufgabe wird gemäß der Erfindung ein isoliertes Heizungsund/oder Sanitärrohr vorgeschlagen, das versehen ist mit einem Innenrohr aus einem Kunststoffmaterial, einem das Innenrohr mit radialem Abstand umgebenden Wellrohr aus Metall, einem kompressiblen und/oder expandierten Material zwischen dem Innenrohr und dem Wellrohr zur Fixierung des Innenrohres innerhalb des Wellrohres, wobei das kompressible und/oder expandierte Material zur Freilegung eines Anschlussendes des Innenrohres von diesem ablösbar ist, einer das Metall-Wellrohr umgebenden Isolationsschicht und einem Außenmantel um die Isolationsschicht.To achieve this object, an insulated heating and / or sanitary pipe is proposed according to the invention, which is provided with an inner pipe made of a plastic material, a corrugated pipe made of metal surrounding the inner pipe at a radial distance, a compressible and / or expanded material between the inner tube and the corrugated tube for fixing the inner tube within the corrugated tube, the compressible and / or expanded material for exposing a connection end of the inner tube being detachable therefrom, an insulation layer surrounding the metal corrugated tube and an outer jacket around the insulation layer.
Nach der Erfindung weist das Heizungs- und/oder Sanitärrohr ein Innenrohr aus Kunststoff auf, das z.B. Sauerstoff- oder allgemein ausgedrückt gasdurchlässig sein kann, aber nicht notwendigerweise sein muss. Im radialen Abstand zum Innenrohr ist dieses von einem Metall-Wellrohr umgeben. Zur Fixierung des Innenrohres innerhalb des Metall-Wellrohres wird der Zwischenraum zwischen beiden durch ein kompressibles und/oder expandiertes Material ausgefüllt. Dieses Material ist zur Freilegung eines Anschlussendes des Innenrohres vom Kunststoff material desselben ablösbar, und zwar auf einfache Art und Weise und insbesondere manuell, so dass das kompressible und/oder expandierte Material am Anschlussende des Innenrohres durch beispielsweise Einbringen eines radialen Umfangseinschnitts abgezogen werden kann. Damit lässt sich nun an das so freigelegteAccording to the invention, the heating and / or sanitary pipe has an inner pipe made of plastic, which e.g. Oxygen or, generally speaking, gas permeable, but need not be. At a radial distance from the inner tube, this is surrounded by a corrugated metal tube. To fix the inner tube inside the corrugated metal tube, the space between the two is filled with a compressible and / or expanded material. This material can be detached from the plastic material of the same for exposing a connection end of the inner tube, in a simple manner and in particular manually, so that the compressible and / or expanded material at the connection end of the inner tube can be removed by, for example, introducing a radial circumferential incision. So now you can get to the exposed
Anschlussende des Innenrohres ein handelsüblicher Fitting, beispielsweise ein Pressfitting, anschließen.Connect a commercially available fitting, for example a press fitting, to the connection end of the inner tube.
Um den zuvor beschriebenen Innenrohraufbau des erfindungsgemäßen iso- lierten Rohres befindet sich eine Schicht aus Wärmedämmmaterial (PE- oder PUR-Schaum), die von einem Außenmantel in Form z.B. eines Kunststoff- Wellrohres umgeben ist.Around the inner pipe structure of the insulated pipe according to the invention described above is a layer of thermal insulation material (PE or PUR foam), which is formed by an outer jacket in the form of e.g. a plastic corrugated tube is surrounded.
Der Vorteil der Erfindung ist darin zu sehen, dass durch das Metall-Wellrohr der Innenrohraufbau Sauerstoff- und wasserdampfdicht ist, so dass in die Isolationsschicht keine Feuchtigkeit gelangen kann. Durch die Flexibilität des Gesamtrohres infolge des Metall-Wellrohres lässt sich das Rohr einfach verlegen sowie auf- und abwickeln.The advantage of the invention is to be seen in the fact that the inner tube structure is oxygen and water vapor tight due to the metal corrugated tube, so that no moisture can get into the insulation layer. Due to the flexibility of the Entire pipe due to the metal corrugated pipe, the pipe can be easily installed as well as wound up and unwound.
Durch den erfindungsgemäßen Rohraufbau wird einer Längenausdehnung des Innenrohres entgegengewirkt, da dieses über das Material zwischen Innenrohr und Außenrohr von diesem gehalten wird. Damit ist die Längenausdehnung des gesamten Rohres durch die Längenausdehnung des Metall-Außenrohres bestimmt.A lengthening of the inner tube is counteracted by the tube structure according to the invention, since this is held by the inner tube and the outer tube via the material. The linear expansion of the entire pipe is thus determined by the linear expansion of the metal outer pipe.
Ferner lässt sich unter Verwendung des erfindungsgemäßen Rohres dessen Installation vereinfachen, da sich das Gesamtrohr auf Grund des metallischen Außen-(Well-)Rohres plastisch verformen lässt.Furthermore, the installation of the pipe according to the invention can be simplified since the overall pipe can be plastically deformed due to the metallic outer (corrugated) pipe.
Bei dem kompressiblen und/oder expandierten elastischen, flexiblen Material handelt es sich insbesondere um ein Schaummaterial. Allgemein gilt noch bezüglich des expandierten Materials, dass dieses im nicht expandierten Zustand beispielsweise durch Extrusion auf das Kunststoffinnen röhr aufgebracht wird, um anschließend nach Anordnung des Metall-Wellrohres um das Innenrohr durch beispielsweise Wärme zur Expansion gebracht zu werden.The compressible and / or expanded elastic, flexible material is in particular a foam material. In general, it still applies to the expanded material that it is applied to the plastic inner tube in the unexpanded state, for example by extrusion, in order to be subsequently expanded, for example by heat, after the metal corrugated tube has been arranged around the inner tube.
Die Permeationsdichtigkeit bei dem erfindungsgemäßen Heizungs- und/oder Sanitärrohr wird durch das Metall-Wellrohr erzielt, wozu es keine Rolle spielt, ob das Kunststoff-Innenrohr für sich bereits gasundurchlässig ist. Die Metall- Wellrohrherstellung ist ein üblicher und gängiger Prozess. Das Metall-Wellrohr kann längsnaht- oder spiralförmig verschweißt sein oder aber die Wellrohrstruktur wird durch Formung eines (glatten) Metallrohres mit anschließender Verformung zum Wellrohr realisiert. Als eigentliches Medien führendes Innenrohr kann bei dem erfindungsgemäßen Konzept ein Rohr aus für die Rohranwendung üblichem Kunststoffmaterial, beispielsweise PP oder PE verwendet werden. Die Erfindung wird nachfolgend anhand der Zeichnung, die einen Schnitt durch ein perspektivisch dargestelltes erfindungsgemäßes Heizungs- und/oder Sanitärrohr zeigt, näher erläutert.The permeability tightness in the heating and / or sanitary pipe according to the invention is achieved by the corrugated metal pipe, for which it does not matter whether the plastic inner pipe is already gas-impermeable. The production of corrugated metal is a common and common process. The metal corrugated pipe can be welded in the form of a longitudinal seam or spiral, or the corrugated pipe structure is realized by shaping a (smooth) metal pipe with subsequent deformation to form the corrugated pipe. In the concept according to the invention, a pipe made of plastic material that is customary for pipe use, for example PP or PE, can be used as the actual media-carrying inner pipe. The invention is explained in more detail below with reference to the drawing, which shows a section through a heating and / or sanitary pipe according to the invention, shown in perspective.
Das Heizungs- und/oder Sanitärrohr 10 weist ein Innenrohr 12 aus Kunststoff, insbesondere vernetztem Kunststoff auf, das mit radialem Abstand r von einem Wellrohr 14 aus Metall, insbesondere Aluminium, umgeben ist. Zur Fixierung des Innenrohres 12 innerhalb des Wellrohres 14 wird ein kompres- sibles und/oder expandiertes Schaummaterial 16 verwendet, das den sich durch den radialen Abstand r bildenden Zwischenraum ausfüllt. Dabei ist das Schaummaterial 16 zur Freilegung eines an beispielsweise einen Fitting anzuschließendes Anschlussende des Innenrohres 12 von diesem auf einfache Weise ablösbar, und zwar insbesondere rückstandsfrei ablösbar. Durch das Schaummaterial 16 ist das Innenrohr 12 innerhalb des Wellrohres 14 fixiert. Das Wellrohr 14 dient als Wasserdampf- und/oder Sauerstoffsperre (letzteres insbesondere dann, wenn das Kunststoff-Innenrohr 12 keine Sauerstoff-Diffusionssperrschicht - z. B. aus EVOH- aufweist) und verleiht dem gesamten Rohr 10 die notwendige Permeationsdichtigkeit.The heating and / or sanitary pipe 10 has an inner pipe 12 made of plastic, in particular cross-linked plastic, which is surrounded at a radial distance r by a corrugated pipe 14 made of metal, in particular aluminum. A compressible and / or expanded foam material 16 is used to fix the inner tube 12 within the corrugated tube 14 and fills the space formed by the radial distance r. In this case, the foam material 16 can be easily detached from the inner pipe 12 to expose a connection end of the inner pipe 12 to be connected, for example, to a fitting, in particular detachable without residue. The inner tube 12 is fixed within the corrugated tube 14 by the foam material 16. The corrugated tube 14 serves as a water vapor and / or oxygen barrier (the latter in particular when the plastic inner tube 12 does not have an oxygen diffusion barrier layer, for example made of EVOH) and gives the entire tube 10 the necessary permeation tightness.
Der zuvor beschriebene Innenrohraufbau ist von einer Wärmeisolationsschicht 18 umgeben, um die herum ein als Wellrohr ausgebildeter Außenmantel 20 aus Kunststoff angeordnet ist. Auf Grund der Dampfsperre in Folge des metallischen Werkstoffes des Wellrohres 14 gelangt keine Feuchtigkeit vom Innenrohr 12 in die Wärmeisolationsschicht 18, wodurch das Rohr 10 seine Isola- tionseigenschaften über die Lebensdauer beibehält. The inner tube structure described above is surrounded by a heat insulation layer 18, around which an outer jacket 20 made of plastic and designed as a corrugated tube is arranged. Due to the vapor barrier as a result of the metallic material of the corrugated tube 14, no moisture reaches the heat insulation layer 18 from the inner tube 12, as a result of which the tube 10 maintains its insulation properties over its service life.

Claims

ANSPRÜCHE EXPECTATIONS
1. Heizungs- und/oder Sanitärrohr mit einem Innenrohr (12) aus einem Kunststoff material, einem das Innenrohr (12) mit radialem Abstand (r) umgebenden Wellrohr (14) aus einem Metall, einem kompressiblen Material (16) zwischen dem Innenrohr (12) und dem Wellrohr (14) zur Fixierung des Innenrohres (12) innerhalb des Wellrohres (14), wobei das kompressible Material (16) zur Freilegung eines Anschlussendes des Innenrohres (12) von diesem ablösbar ist, einer das Metall-Wellrohr (14) umgebenden Isolationsschicht (18) und einem Außenmantel (20) um die Isolationsschicht (18).1.Heating and / or sanitary pipe with an inner pipe (12) made of a plastic material, a corrugated pipe (14) surrounding the inner pipe (12) with a radial distance (r) made of a metal, a compressible material (16) between the inner pipe ( 12) and the corrugated tube (14) for fixing the inner tube (12) within the corrugated tube (14), the compressible material (16) being detachable from this for exposing a connection end of the inner tube (12), one the metal corrugated tube (14 ) surrounding insulation layer (18) and an outer jacket (20) around the insulation layer (18).
2. Heizungs- und/oder Sanitärrohr nach Anspruch 1, dadurch gekennzeichnet, dass das kompressible Material (16) ein Schaummaterial oder ein weiches Elastomermaterial ist.2. Heating and / or sanitary pipe according to claim 1, characterized in that the compressible material (16) is a foam material or a soft elastomer material.
3. Heizungs- und/oder Sanitärrohr mit einem Innenrohr (12) aus einem Kunststoffmaterial, das gasdurchlässig ist, einem das Innenrohr (12) mit radialem Abstand (r) umgebenden Wellrohr (14) aus einem Metall, einem expandierten Material (16) zwischen dem Innenrohr (12) und dem Wellrohr (14) zur Fixierung des Innenrohres (12) innerhalb des Wellrohres (14), wobei das expandierte Material (16) zur Freilegung eines Anschlussendes des Innenrohres (12) von diesem ablösbar ist, einer das Metall-Wellrohr (14) umgebenden Isolationsschicht (18) und einem Außenmantel (20) um die Isolationsschicht (18). 3. Heating and / or sanitary pipe with an inner pipe (12) made of a plastic material that is gas-permeable, a corrugated pipe (14) surrounding the inner pipe (12) with a radial distance (r) made of a metal, an expanded material (16) between the inner tube (12) and the corrugated tube (14) for fixing the inner tube (12) within the corrugated tube (14), the expanded material (16) being detachable from this for exposing a connection end of the inner tube (12), one of the metal Corrugated tube (14) surrounding insulation layer (18) and an outer jacket (20) around the insulation layer (18).
4. Heizungs- und/oder Sanitärrohr nach Anspruch 3, dadurch gekennzeichnet, dass das expandierte Material (16) ein Schaummaterial ist.4. Heating and / or sanitary pipe according to claim 3, characterized in that the expanded material (16) is a foam material.
5. Heizungs- und/oder Sanitärrohr nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass der Außenmantel (20) aus einem Kunststoffmaterial besteht.5. Heating and / or sanitary pipe according to one of claims 1 to 4, characterized in that the outer jacket (20) consists of a plastic material.
6. Heizungs- und/oder Sanitärrohr nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass der Außenmantel (20) als Wellrohr ausgebildet ist. 6. Heating and / or sanitary pipe according to one of claims 1 to 5, characterized in that the outer jacket (20) is designed as a corrugated pipe.
EP02747461A 2001-07-07 2002-07-06 Insulated heating and/or sanitation pipe Withdrawn EP1405005A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10133113 2001-07-07
DE10133113 2001-07-07
PCT/EP2002/007553 WO2003006872A1 (en) 2001-07-07 2002-07-06 Insulated heating and/or sanitation pipe

Publications (1)

Publication Number Publication Date
EP1405005A1 true EP1405005A1 (en) 2004-04-07

Family

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Family Applications (1)

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EP02747461A Withdrawn EP1405005A1 (en) 2001-07-07 2002-07-06 Insulated heating and/or sanitation pipe

Country Status (4)

Country Link
US (1) US7004203B2 (en)
EP (1) EP1405005A1 (en)
CA (1) CA2452947A1 (en)
WO (1) WO2003006872A1 (en)

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US7004203B2 (en) 2006-02-28
US20040206413A1 (en) 2004-10-21
CA2452947A1 (en) 2003-01-23

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