DE3532847C1 - Seal for a socket-type joint of sewage pipes - Google Patents

Seal for a socket-type joint of sewage pipes

Info

Publication number
DE3532847C1
DE3532847C1 DE19853532847 DE3532847A DE3532847C1 DE 3532847 C1 DE3532847 C1 DE 3532847C1 DE 19853532847 DE19853532847 DE 19853532847 DE 3532847 A DE3532847 A DE 3532847A DE 3532847 C1 DE3532847 C1 DE 3532847C1
Authority
DE
Germany
Prior art keywords
sealing element
polyurethane
pipe
socket
pipe end
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DE19853532847
Other languages
German (de)
Inventor
Franz 4150 Krefeld Bovender
Klaus 5030 Hürth Krull
Helmut 5020 Frechen Viehs
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.)
Giessharzwerk Frechen & C GmbH
Original Assignee
Giessharzwerk Frechen & C 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.)
Filing date
Publication date
Application filed by Giessharzwerk Frechen & C GmbH filed Critical Giessharzwerk Frechen & C GmbH
Priority to DE19853532847 priority Critical patent/DE3532847C1/en
Application granted granted Critical
Publication of DE3532847C1 publication Critical patent/DE3532847C1/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F3/00—Sewer pipe-line systems
    • E03F3/04—Pipes or fittings specially adapted to sewers
    • 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
    • F16L21/00—Joints with sleeve or socket
    • F16L21/02—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings
    • F16L21/05—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings comprising a first ring being placed on a male part and a second ring in the sleeve or socket

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Sewage (AREA)

Abstract

The invention relates to a chemically resistant seal for a socket-type joint of sewage pipes. The essential feature of the invention is that a first sealing element in the pipe socket consists of rigid polyurethane and a second sealing element at the pipe end consists of a region of rigid polyurethane and a region of flexible polyurethane, the latter not being exposed to the sewage. The process for producing the sealing element consists in the sealing element located at the pipe end being moulded on in at least two stages. <IMAGE>

Description

Beschreibung description

Die Erfindung betrifft eine Dichtung für eine Steck muffenverbindung gemäß dem Oberbegriff des Anspruchs 1. The invention relates to a seal for a plug-in sleeve connection according to the preamble of claim 1.

Kanalrohre können bekanntlich aus verschiedenen Materialien hergestellt und mit unterschiedlichen, vorgefertigten separaten oder angebauten Dichtelementen paßgenau und dicht verbunden werden. Sewer pipes are known to be made of various materials and with different, prefabricated separate or attached sealing elements be connected precisely and tightly.

Eine Dichtung der im Oberbegriff des Anspruchs 1 angegebenen Art ist aus der US-PS 2622901 bekannt Die Dichtelemente bestehen dort aus speziellen Zementen, teilweise auf Kunststoffbasis. Diese Dichtelemente sind zwar chemikalienresistent, jedoch handelt es sich bei den verwendeten Zementen um wenig übliche Materialien, die obendrein aufwendig in der Herstellung und Verarbeitung sind. A seal of the type specified in the preamble of claim 1 is known from US-PS 2622901 The sealing elements consist of special there Cements, some with a plastic base. These sealing elements are chemical resistant, However, the cements used are not very common materials, which on top of that are complex to manufacture and process.

Der Erfindung liegt daher die Aufgabe zugrunde, die bekannte Dichtung so auszubilden, daß bei Aufrechterhaltung der Chemikalienresistenz der Dichtung die Dichtelemente aus gebäuchlichem Material bestehen, das mit geringem Aufwand herstellbar und verarbeitbar ist. The invention is therefore based on the object of the known seal designed so that the chemical resistance of the seal is maintained the sealing elements are made of common material that can be done with little effort can be produced and processed.

Erfindungsgemäß wird diese Aufgabe durch die im kennzeichnenden Teil des Anspruchs 1 angegebenen Merkmale gelöst. In die Rohrmuffe wird ein harter chemikalienresistenter Polyurethankörper durch Vergießen eingebracht und am Rohrende ein Vergußkörper aufgebracht, der im Hohlbereich des Muffenspaltes, der sich nach dem Einbau ergibt, aus chemikalienbeständigem hartem Polyurethan und im Bereich der Dichtschulter aus flexiblem Polyurethan besteht. Dabei können der aus hartem Polyurethan bestehende Dichtelement-Teil x-farbig und der weiche Teil zur besseren Kennzeichnung dieses Dichtelementes y-farbig sein. According to the invention, this object is achieved by the characterizing part of claim 1 specified features solved. A hard, chemical-resistant one is inserted into the pipe socket Polyurethane body introduced by potting and a potting body applied to the pipe end, that in the hollow area of the socket gap, which results after installation, is made of chemical-resistant hard polyurethane and in the area of the sealing shoulder made of flexible polyurethane. The sealing element part made of hard polyurethane can be x-colored and the soft part must be Y-colored for better identification of this sealing element.

Durch die Erfindung erreicht man, daß das Abwasser und damit die auf flexibles Polyurethan aggressiv wirkenden Agentien nur bis zur komprimierten Dichtzone gelangen. Praktisch ist somit nur der aus hartem Polyurethan bestehende Teil des Dichtelements am Rohrende, also der chemisch resistente Teil, dem Abwasser ausgesetzt. Einer Zerstörung des Dichtelements, z. B. The invention achieves that the wastewater and thus the Aggressive agents on flexible polyurethane only up to compressed Get sealing zone. So only the one made of hard polyurethane is practical Part of the sealing element at the end of the pipe, i.e. the chemically resistant part, the wastewater exposed. Destruction of the sealing element, e.g. B.

durch Quellung infolge eindiffundierenden Abwassers, ist damit sicher vorgebeugt.by swelling as a result of diffusing sewage, is therefore safe bent forward.

Bei der erfindungsgemäßen Dichtung ist vorteilhaft, daß bekannte Kunststoffe zur Anwendung kommen. In the case of the seal according to the invention, it is advantageous that known Plastics are used.

Auch eine Vorfertigung der Dichtelemente ist möglich.Prefabrication of the sealing elements is also possible.

Die Herstellung der erfindungsgemäßen Dichtung wird nachfolgend anhand der Zeichnung erläutert. The production of the seal according to the invention is illustrated below with reference to the drawing explained.

Gemäß Fig. 1 wird in ein senkrecht stehendes Steinzeugrohr 1 der Formverguß 2 im Muffenteil 3 des Rohres 1 in Hart-Polyurethan ausgeführt. Am Rohrende 4 wird der Verguß 5 (siehe Fig. 2) bis unterhalb einer Dichtschulter 6 in x-farbigem Hart-Polyurethan (A) ausgeführt. Nach dessen Angelieren wird nachfolgend flexibles y-farbiges Polyurethan (B) bis zur vollständigen Füllung einer Form 8 vergossen. Nach Aushärten der Vergüsse 2 und 5 werden die Formen 7 und 8 vom Rohr 1 getrennt. According to Fig. 1 is in a vertical stoneware pipe 1 of Cast molding 2 in the socket part 3 of the pipe 1 made of rigid polyurethane. At the end of the pipe 4, the potting 5 (see Fig. 2) to below a sealing shoulder 6 in x-colored Rigid polyurethane (A) executed. After it has gelled, the following becomes flexible y-colored polyurethane (B) cast until a mold 8 is completely filled. After the castings 2 and 5 have cured, the molds 7 and 8 are separated from the tube 1.

Im eingebauten Zustand ergibt sich eine für Abwasser 9 zugängliche Muffenspaltkammer 10 (Fig. 3), deren Wandungen weitgehend aus chemikalienresistentem Hart-Polyurethan bestehen. In the installed state, there is one accessible for waste water 9 Socket gap chamber 10 (Fig. 3), the walls of which are largely made of chemical-resistant Rigid polyurethane consist.

Claims (4)

Patentansprüche 1. Dichtung für eine Steckmuffenverbindung von Abwasserrohren mit einem aus chemikalienresistenten hartem Kunststoff bestehenden Dichtelement in der Rohrmuffe, und mit einem Dichtelement am Rohrende, das aus zwei Teilen zusammengesetzt ist, von denen einer aus hartem Kunststoff besteht, dadurch gekennzeichnet, daß das Dichtelement (2) in der Rohrmuffe (3) aus hartem Polyurethan besteht, daß der eine Teil (A) des am Rohrende (4) befindlichen Dichtelements (5) aus chemikalienresistentem hartem Polyurethan und der andere Teil (B) aus weichem Polyurethan besteht, wobei der Teil (A) mit dem harten Polyurethan sich unmittelbar am Rohrende (4) befindet und der Teil (B) mit dem weichen Polyurethan in Richtung vom Rohrende weg sich an diesen anschließt. Claims 1. Seal for a socket connection of sewer pipes with a chemical-resistant hard plastic sealing element in the pipe socket, and with a sealing element at the pipe end, which is composed of two parts is, one of which is made of hard plastic, characterized in that the sealing element (2) in the pipe socket (3) consists of hard polyurethane that the a part (A) of the sealing element (5) at the pipe end (4) made of chemical-resistant hard polyurethane and the other part (B) consists of soft polyurethane, wherein the part (A) with the hard polyurethane is located directly on the pipe end (4) and the part (B) with the soft polyurethane in the direction away from the pipe end this connects. 2. Dichtung nach Anspruch 1, dadurch gekennzeichnet, daß das am Rohrende (4) befindliche Dichtelement (5) entsprechend den unterschiedlichen Polyurethanqualitäten zumindest zweifarbig markiert ist. 2. Seal according to claim 1, characterized in that the pipe end (4) located sealing element (5) according to the different polyurethane qualities is marked at least in two colors. 3. Verfahren zur Herstellung der Dichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das am Rohrende befindliche Dichtelement (5) in einer Form (8) in mindestens zwei Stufen an das Steinzeugrohr (i) angegossen wird. 3. A method for producing the seal according to claim 1 or 2, characterized in that the sealing element (5) located at the pipe end in one Form (8) is cast onto the stoneware pipe (i) in at least two stages. 4. Verfahren nach Anspruch 3, dadurch gekennzeichnet, daß für das am Rohrende befindliche Dichtelement zunächst eine Vergußmasse, die das harte chemikalienresistente Polyurethan bildet, so eingetragen wird, daß die Form (8) teilweise gefüllt ist, und daß nach dem Härtungsbeginn dieser Vergußmasse die Form mit einer weiteren Vergußmasse, die das weiche Polyurethan bildet, aufgefüllt wird. 4. The method according to claim 3, characterized in that for the The sealing element located at the end of the pipe is initially a potting compound, which is the hard chemical-resistant Polyurethane forms, is entered so that the mold (8) is partially filled, and that after the start of hardening of this potting compound, the mold with a further potting compound, which forms the soft polyurethane, is filled.
DE19853532847 1985-09-14 1985-09-14 Seal for a socket-type joint of sewage pipes Expired DE3532847C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19853532847 DE3532847C1 (en) 1985-09-14 1985-09-14 Seal for a socket-type joint of sewage pipes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19853532847 DE3532847C1 (en) 1985-09-14 1985-09-14 Seal for a socket-type joint of sewage pipes

Publications (1)

Publication Number Publication Date
DE3532847C1 true DE3532847C1 (en) 1986-12-18

Family

ID=6280977

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19853532847 Expired DE3532847C1 (en) 1985-09-14 1985-09-14 Seal for a socket-type joint of sewage pipes

Country Status (1)

Country Link
DE (1) DE3532847C1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0506356A2 (en) * 1991-03-25 1992-09-30 Stanton Bonna Concrete Limited Gasket arrangements for pipe joints and pipe joints including the same
DE29706933U1 (en) * 1997-04-17 1997-09-18 Sander GmbH & Co.KG Systemtechnik in Beton, 32756 Detmold Composite pipe system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2622901A (en) * 1951-01-22 1952-12-23 Atlas Mineral Products Company Corrosion and solvent resistant pipe joint
DE2544935A1 (en) * 1974-10-21 1976-04-29 Freeman Chemical Corp METHOD OF MANUFACTURING AN IMPROVED PIPE JOINT SEAL

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2622901A (en) * 1951-01-22 1952-12-23 Atlas Mineral Products Company Corrosion and solvent resistant pipe joint
DE2544935A1 (en) * 1974-10-21 1976-04-29 Freeman Chemical Corp METHOD OF MANUFACTURING AN IMPROVED PIPE JOINT SEAL

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DE-DIN-Norm 1230, "Steinzeug für die Kanalisation"Teil 1 "Rohre und Formstücke mit Muffe", v.Sept.1979, Abschnitt 5.4.2, und Teil 2 "Rohre und Formstücke mit Steckmuffe, Technische Liefer- bedingungen", vom Sept.1979 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0506356A2 (en) * 1991-03-25 1992-09-30 Stanton Bonna Concrete Limited Gasket arrangements for pipe joints and pipe joints including the same
EP0506356A3 (en) * 1991-03-25 1993-01-13 Stanton Bonna Concrete Limited Gasket arrangements for pipe joints and pipe joints including the same
DE29706933U1 (en) * 1997-04-17 1997-09-18 Sander GmbH & Co.KG Systemtechnik in Beton, 32756 Detmold Composite pipe system

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Legal Events

Date Code Title Description
8100 Publication of the examined application without publication of unexamined application
D1 Grant (no unexamined application published) patent law 81
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee