DE2439845B2 - CONNECTOR FOR CONNECTING A METAL-PLASTIC GAS PIPE - Google Patents

CONNECTOR FOR CONNECTING A METAL-PLASTIC GAS PIPE

Info

Publication number
DE2439845B2
DE2439845B2 DE19742439845 DE2439845A DE2439845B2 DE 2439845 B2 DE2439845 B2 DE 2439845B2 DE 19742439845 DE19742439845 DE 19742439845 DE 2439845 A DE2439845 A DE 2439845A DE 2439845 B2 DE2439845 B2 DE 2439845B2
Authority
DE
Germany
Prior art keywords
pipe
polyethylene
sleeve
metal
abutment
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.)
Granted
Application number
DE19742439845
Other languages
German (de)
Other versions
DE2439845A1 (en
DE2439845C3 (en
Inventor
Herbert 5602 Langenberg; Osten Karl-Friedrich 6000 Frankfurt Wimmershoff
Original Assignee
Main-Gaswerke AG, 6000 Frankfurt; Mannesmann AG, 4000 Düsseldorf
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 Main-Gaswerke AG, 6000 Frankfurt; Mannesmann AG, 4000 Düsseldorf filed Critical Main-Gaswerke AG, 6000 Frankfurt; Mannesmann AG, 4000 Düsseldorf
Priority claimed from DE19742439845 external-priority patent/DE2439845C3/en
Priority to DE19742439845 priority Critical patent/DE2439845C3/en
Priority to AT551675A priority patent/AT339102B/en
Priority to GB32558/75A priority patent/GB1514208A/en
Priority to IT26195/75A priority patent/IT1040355B/en
Priority to FR7524641A priority patent/FR2282084A1/en
Priority to CH1047675A priority patent/CH586867A5/xx
Priority to BE159163A priority patent/BE832387A/en
Priority to LU73208A priority patent/LU73208A1/xx
Priority to NL7509760A priority patent/NL7509760A/en
Publication of DE2439845A1 publication Critical patent/DE2439845A1/en
Publication of DE2439845B2 publication Critical patent/DE2439845B2/en
Publication of DE2439845C3 publication Critical patent/DE2439845C3/en
Application granted granted Critical
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/74—Joining plastics material to non-plastics material
    • B29C66/742—Joining plastics material to non-plastics material to metals or their alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3404—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint
    • B29C65/342—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint comprising at least a single wire, e.g. in the form of a winding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3472—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint
    • B29C65/3476—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint being metallic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/114—Single butt joints
    • B29C66/1142—Single butt to butt joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1222—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a lapped joint-segment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1224—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a butt joint-segment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5224—Joining tubular articles for forming fork-shaped connections, e.g. for making Y-shaped pieces
    • B29C66/52241—Joining tubular articles for forming fork-shaped connections, e.g. for making Y-shaped pieces with two right angles, e.g. for making T-shaped pieces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5229—Joining tubular articles involving the use of a socket
    • B29C66/52291—Joining tubular articles involving the use of a socket said socket comprising a stop
    • B29C66/52292—Joining tubular articles involving the use of a socket said socket comprising a stop said stop being internal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5229—Joining tubular articles involving the use of a socket
    • B29C66/52296—Joining tubular articles involving the use of a socket said socket comprising sealing elements, e.g. gaskets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5229—Joining tubular articles involving the use of a socket
    • B29C66/52297—Joining tubular articles involving the use of a socket said socket comprising slip-off prevention means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5229—Joining tubular articles involving the use of a socket
    • B29C66/52298—Joining tubular articles involving the use of a socket said socket being composed by several elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • 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
    • F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/20—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics based principally on specific properties of plastics
    • F16L47/24—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics based principally on specific properties of plastics for joints between metal and plastics pipes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2305/00—Use of metals, their alloys or their compounds, as reinforcement

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Branch Pipes, Bends, And The Like (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Description

Die Erfindung betrifft ein Anschlußstück zum längskraftschlüssigen Verbinden einer aus Polyäthylen bestehenden Gasrohrieitung mit einer metallischen Gasrohrleitung, wie es im Oberbegriff des Anspruchs 1 und in der DT- PS 2 5 52 571 im einzelnen beschrieben ist. Diese Patentschrift stellt ein älteres Recht dar.The invention relates to a connection piece for the longitudinal force-locking connection of a polyethylene existing gas pipeline with a metallic gas pipeline as described in the preamble of claim 1 and is described in detail in DT-PS 2,552,571. This patent specification represents an earlier right.

Nachteilig bei der dort beanspruchten Verbindung ist. daß nach Lösen der Mutter auf dem Rohrstück eine Verdrehung desselben gegenüber der Verbindungsmuffe möglich ist, obwohl die Muffe mit Paßsitz auf das Rohrstück aufgebracht ist. Bei Beanspruchungen reicht dieser Paßsitz aber nicht als Verdrehsicherung aus. Zu den auftretenden Beanspruchungen gehört beispielsweise auch eine beabsichtigte oder unbeabsichtigte äußere Einwirkung bei der Montage der Verbindung, soA disadvantage of the connection claimed there. that after loosening the nut on the pipe section a rotation of the same relative to the connecting sleeve is possible, although the sleeve is fitted with a snug fit on the pipe section. Sufficient for stress but this snug fit does not act as an anti-twist device. The stresses that occur include, for example also an intentional or unintentional external influence during the assembly of the connection, so

bei einem Ausrichten der Anschlubrohre.when aligning the connecting pipes.

Längskraftschlüssig. aber ebenfalls nicht verdrehsi-Restrained. but also not twisted

cher. ist der aus der DT-AS 10 66 823 bekannte Anschluß. Hierbei ist das Anschlußstück durch Umsprit-cher. is the connection known from DT-AS 10 66 823. Here, the connection piece is molded

s zen der Rohrstöße erzeugt worden. Aufgrund der unterschiedlichen Tempcraiurkoefnzienten bei Metall und Kunststoff, tritt aber beim Erwärmen unter Betriebsbedingungen eine Lockerung der Verbindungs zen of the pipe joints have been generated. Due to the different temperature coefficients in metal and plastic, but loosening of the connection occurs when heated under operating conditions

auf. so daß eine Verdrehung möglich ist. Ganzon. so that rotation is possible. Quite

ίο abgesehen davon, ist in diesem Falle eine Gasdichtheit nicht gewährleistet.Apart from that, in this case there is a gas tightness not guaranteed.

Eine weitere, nicht verdrehsichere Verbindung ist aus der US-PS 38 23 965 bekannt.Another, non-twist-proof connection is off the US-PS 38 23 965 known.

Aufgabe der Erfindung ist es. ein Anschlußstück der eingangs genannten Art so auszubilden, daß die Verbindung nicht nur längskraftschlüssig sondern auch verdrehungssicher ist.It is the object of the invention. to form a connector of the type mentioned so that the Connection is not only restrained but also torsion-proof.

Gelöst wird diese Aufgabe durch die im Anspruch 1 angegebenen Merkmale.This object is achieved by the features specified in claim 1.

Der Anspruch 2 stellt eine vorzugsweise Ausgestaltung der Erfindung dar.Claim 2 represents a preferred embodiment of the invention.

Durch die erfindungsgemäße Lösung wird eineThe inventive solution is a

Verbindung geschaffen, die bei allen auftretenden Belastungen und Temperaturen verrlrehsicher ist, wobei — bei entsprechender Wahl des Klebers — die Temperatur auch weit über den üblichen liegen kann.Connection created, which is locked against all occurring loads and temperatures, whereby - with the appropriate choice of adhesive - the temperature can also be well above the usual.

Die Erfindung soll nachfolgend an Hand einer Zeichnung erläutert werden.The invention is to be explained below with reference to a drawing.

Gemäß der Darstellung in der Zeichnung ist für die Durchführung des Polyäthylen-Gasrohres 1 durch die Hauswand 2 dieses von einem Schutzrohr 3 umgeben, welches von den Schutzkappen 4 gasdicht verschlossen ist. Im Bereich der Hauseinführung ist das Ende des Polyäthylenrohres mit dem Anschlußende 5 der Verbindungsmuffe 6 verschweißt. Hierfür dienen die in der Muffeninnenwand eingebetteten Widerstandsheizdrähte 7. Das metallische Gasrohr 8 ist an dem metallischen Rohrstück 9 a. geschlossen, dessen entgegengesetztes Ende von dem Anschlußende 10 der Muffe 6 mit Preßsitz umfaßt ist. In der nutförmigen Vertiefung 14 der Muffe 6 ist als Widerlager 11 eine Stahlmutter 12 eingebettet, in deren Gewinde 13 das Stirnende des metallischen Rohrstückes 9 eingeschraubt und zur Sicherung gegen ein unbeabsichtigtes Lösen damit verklebt ist. Die Stahlmutter 12 bildet mit der Polyäthylenmuffe 6 einen Formkörper, der in an sich bekannter Weise nach dem Spritzverfahren hergestellt ist.As shown in the drawing is for the implementation of the polyethylene gas pipe 1 through the House wall 2 this surrounded by a protective tube 3, which is sealed gas-tight by the protective caps 4 is. In the area of the house entry is the end of the polyethylene pipe with the connection end 5 of the Connection sleeve 6 welded. The resistance heating wires embedded in the inner wall of the socket are used for this 7. The metallic gas pipe 8 is on the metallic pipe section 9 a. closed, its opposite End of the connecting end 10 of the sleeve 6 is encompassed with a press fit. In the groove-shaped recess 14 of the sleeve 6 is embedded as an abutment 11 a steel nut 12, in the thread 13 of the end of the metallic pipe section 9 screwed and to secure against unintentional loosening with it is glued. The steel nut 12 forms a molded body with the polyethylene sleeve 6, which in itself is produced in a known manner by the injection molding process.

In der Verbindungsmuffe 6 befinden sich im Bereich des metallischen Rohrslückes 9 Dichtungen 15.In the connecting sleeve 6 there are seals 15 in the area of the metallic pipe gap 9.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims (2)

24 39 84! Patentansprüche:24 39 84! Patent claims: 1. Anschlußstück zum längskraftschlüssigen Verbinden einer aus Polyäthylen bestehenden Gasrohrleitung mit einer metallischen Gasrohrieitung, insbesondere für die Installation einer Gas-Hauseinführung, welches in Form einer Verbindungsmuffe aus Polyäthylen ausgebildet ist. in deren einem Anschlußende das Ende des Polyäthylen-Rohres eingeschweißt ist und in deren anderem Anschlußende ein zum Verbinden mit dem metallischen Gasrohr dienendes Rohrstück aus Metall angeordnet ist. das an seinem, dem Polyäthylen-Rohr zugewandten Stirnende ein hieran fest verbundenes, ringförmiges Widerlager größeren Außendurchmessers aufweist und Dichtungen zwischen Verbindungs.muffe und Rohrslück angeordnet sind, dadurch gekennzeichnet, daß das Widerlager (11) in einer diesem entsprechenden nutförmigen Vertiefung (14) der Muffe (6) unverdrehbar eingebettet und in Form einer Mutter(12) oder eines Ringes mit Innengewinde (13) ausgebildet ist, in welchem das S'irnende des metallischen Rohrstücks eingeschraubt und durch Verkleben od. dgl. gesichert ist. 1. Connection piece for the longitudinal force-locking connection of a gas pipeline made of polyethylene with a metal gas pipeline, in particular for the installation of a gas house entry, which is designed in the form of a coupling sleeve made of polyethylene. in one end of which the end of the polyethylene pipe is welded and in the other end of which a piece of metal pipe serving to connect to the metal gas pipe is arranged. which at its end facing the polyethylene pipe has an annular abutment of larger outer diameter firmly connected to it and seals are arranged between the connecting sleeve and the pipe gap, characterized in that the abutment (11) is in a corresponding groove-shaped recess (14) of the The sleeve (6) is embedded so that it cannot rotate and is designed in the form of a nut (12) or a ring with an internal thread (13), into which the end of the metallic pipe section is screwed and secured by gluing or the like. 2. Anschlußstück nach Anspruch I. dadurch gekennzeichnet, daß die Polyäthylenmuffe (6) als ein in an sich bekannter weise durch Umspritzen des Widerlagers (11) und des gegebenenfalls Dichtungsringe (15) aufweisenden Endes des metallischen Rohrstückes erzeugter Formkörper ausgebildet ist.2. Connection piece according to claim I. characterized in that the polyethylene sleeve (6) as a in a manner known per se by encapsulating the abutment (11) and optionally the sealing rings (15) having the end of the metallic pipe section produced molded body is formed.
DE19742439845 1974-08-16 1974-08-16 Connection piece for connecting a metal-plastic gas pipe system Expired DE2439845C3 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
DE19742439845 DE2439845C3 (en) 1974-08-16 Connection piece for connecting a metal-plastic gas pipe system
AT551675A AT339102B (en) 1974-08-16 1975-07-16 CONNECTION OF A GAS PIPE MADE OF POLYATHYLENE WITH A METALLIC GAS PIPE
GB32558/75A GB1514208A (en) 1974-08-16 1975-08-04 Pipe connections
IT26195/75A IT1040355B (en) 1974-08-16 1975-08-07 CONNECTION OF A POLYETHYLENE PIPE FOR GAS WITH A METALLIC PIPE FOR GAS
FR7524641A FR2282084A1 (en) 1974-08-16 1975-08-07 CONNECTION DEVICE BETWEEN A POLYETHYLENE GAS PIPE AND A METAL GAS PIPE
CH1047675A CH586867A5 (en) 1974-08-16 1975-08-12
BE159163A BE832387A (en) 1974-08-16 1975-08-13 CONNECTION DEVICE BETWEEN A POLYETHYLENE GAS PIPE AND A METAL GAS PIPE
LU73208A LU73208A1 (en) 1974-08-16 1975-08-14
NL7509760A NL7509760A (en) 1974-08-16 1975-08-15 CONNECTION OF A POLYETHENE GAS PIPE TO A METAL GAS PIPE.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742439845 DE2439845C3 (en) 1974-08-16 Connection piece for connecting a metal-plastic gas pipe system

Publications (3)

Publication Number Publication Date
DE2439845A1 DE2439845A1 (en) 1976-02-19
DE2439845B2 true DE2439845B2 (en) 1976-07-22
DE2439845C3 DE2439845C3 (en) 1977-03-10

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Also Published As

Publication number Publication date
DE2439845A1 (en) 1976-02-19
ATA551675A (en) 1977-01-15
IT1040355B (en) 1979-12-20
FR2282084B1 (en) 1982-04-16
LU73208A1 (en) 1976-03-02
BE832387A (en) 1975-12-01
CH586867A5 (en) 1977-04-15
AT339102B (en) 1977-10-10
FR2282084A1 (en) 1976-03-12
NL7509760A (en) 1976-02-18
GB1514208A (en) 1978-06-14

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)
E77 Valid patent as to the heymanns-index 1977
EGA New person/name/address of the applicant
8339 Ceased/non-payment of the annual fee