NL2012265C2 - Method for installing a piping element in a pre-existing pipe line, and coupling element for use in such a method. - Google Patents

Method for installing a piping element in a pre-existing pipe line, and coupling element for use in such a method. Download PDF

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Publication number
NL2012265C2
NL2012265C2 NL2012265A NL2012265A NL2012265C2 NL 2012265 C2 NL2012265 C2 NL 2012265C2 NL 2012265 A NL2012265 A NL 2012265A NL 2012265 A NL2012265 A NL 2012265A NL 2012265 C2 NL2012265 C2 NL 2012265C2
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Netherlands
Prior art keywords
coupling element
pipeline
pipe
fluid
rigid
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NL2012265A
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Dutch (nl)
Inventor
Kilianus Anselmus Maximilianus Benedictu Belderbos
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Hydramedes B V
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Application filed by Hydramedes B V filed Critical Hydramedes B V
Priority to NL2012265A priority Critical patent/NL2012265C2/en
Application granted granted Critical
Publication of NL2012265C2 publication Critical patent/NL2012265C2/en

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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
    • F16L41/00—Branching pipes; Joining pipes to walls
    • F16L41/008—Branching pipes; Joining pipes to walls for connecting a measuring instrument
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
    • G01F15/18—Supports or connecting means for meters
    • G01F15/185—Connecting means, e.g. bypass conduits
    • 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
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
    • F16L55/1608—Devices for covering leaks in pipes or hoses, e.g. hose-menders by replacement of the damaged part of the pipe

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Joints With Pressure Members (AREA)

Description

Title: Method for installing a piping element in a pre-existing pipe line, and coupling element for use in such a method.
Description
The present invention relates to a method for installation of a piping element, such as a pipe fitting, a valve, or an in-line device such as a water meter, in a pre-existing rigid pipe line for fluid transport.
The method in particular relates to application thereof with domestic pipe lines for fluids, such as domestic tap water and natural gas supply lines and central heating pipe lines, which pipe lines are normally of metal, in most cases steel, brass, or copper.
According to a second aspect, the invention relates to a rigid pipe coupling element. JP3084197U discloses a pipe-fitting interface for connecting a hot-water supply system to a piping installation. This pipe-fitting interface contains at least two separate parts forming a telescopic assembly. In both parts, flexible segments are inserted to compensate for misalignment between the piping installation and the hot-water supply system.
It is an object of the present invention to provide a simple and cost effective method for installation of a piping element in a pre-existing pipe line, using only few components.
Said object is achieved by the method according to the invention, for installation of a piping element, such as a pipe fitting, a valve, or an in-line device such as a water meter, in a pre-existing rigid pipe line for fluid transport, comprising the steps of: a. providing a piping element, and providing a rigid pipe coupling element which comprises a first, hollow, cylindrical section comprising at least a first end of the coupling element, which first section has a pipe line receiving portion which has an inner diameter and a length, so that it can slide over a first free end of a pipe line in use, wherein the first section is configured for establishing a fluid tight connection between the first end of the coupling element and an outer surface of the pipe line at its first free end, and which coupling element comprises a second, hollow, cylindrical section comprising at least a second end of the coupling element opposite the first end, which second section has an outer diameter, wherein the first and second sections are permanently connected to each other, in a fluid-tight manner, and such that the pipe line receiving portion and the second section are concentric with respect to each other, and such that fluid can flow through the coupling element from the first end to the second end, and wherein the inner diameter of the pipe line receiving portion is slightly larger than the outer diameter of the second section, b. removing a piece of the pipe line so as to create a gap for installation of the piping element and the coupling element, which gap has a length greater than a length of the rigid pipe coupling element and greater than a length of the piping element, and smaller than the sum of the lengths of the rigid pipe coupling element and the piping element, thereby creating a first pipe line part having a first free end and a second pipe line part having a second free end, wherein said first and second free ends are spaced apart by the gap, c. sliding the rigid pipe coupling element with its pipe line receiving portion over the first pipe line part, d. positioning the piping element in the gap, e. sliding the coupling element back in the direction of the second pipe line part until the second end of the coupling element has been connected with a first end of the piping element and a second end of the piping element has been connected with the second free end of the second pipe line part, and f. creating a fluid tight connection between the first end of the coupling element and the first pipe line part, between the coupling element and the piping element, and between the piping element and the second pipe line part.
Within the framework of the present invention, by piping element is meant a component designed for in-line mounting into a pipeline for fluid, such as a pipe fitting, a valve, or an in-line device such as a flow meter, for example a water meter.
According to the method, a rigid pipe coupling element is used which is mounted into the pipe line together with the piping element. Due to the fact that the coupling element has a pipe line receiving portion which can slide over one end of the pipe line before fastening it thereto, the piping element can be installed very easily and for example without the need of temporary bending or disassembly of the pipe line, with risk of damage or leakage, so as to make sufficient room for the piping element to be placed in between the both ends of the pipe line. Also, the coupling element can be adjusted, by the mentioned sliding over the end of the pipe line, so as to be able to be mounted together with piping elements of different length. A fluid tight connection and can be realised effectively after adjusting the coupling element in dependence of the piping element.
Preferably, during step c., at first an additional sealing element is slid over the first pipe line part, after which the coupling element is slid over the first pipe line part, wherein during step f., the sealing element is brought in contact with the first end of the coupling element.
The sealing element is preferably configured such that it is removable from the pipe line part after a previously established fluid tight connection is released. The sealing element is, to this end, preferably formed as an elastic, preferably resilient element, preferably an O-ring. In that case the coupling element and piping element can be easily removed from the pipe line. Alternatively, the sealing element is a compression ring, for establishing a compression fitting.
Preferably, during step e., a further additional sealing element is slid over the second section of the coupling element prior to the mutual engagement of the coupling element and the piping element, for the purpose of establishing the fluid tight connection between the coupling element and the piping element.
In a preferred embodiment of the method of the invention, a first and second end of the piping element are formed as recesses which are configured, for the purpose of establishing a connection, to engage an outer edge of the second section of the coupling element and an outer edge of the second end of the second pipe line part, respectively. Thus, the total length of the piping element and the coupling element in mutually connected condition is smaller than the sum of their respective lengths. Therefore, preferably, the length of the gap is smaller than said total length. The connections of step d. of the method according to the invention are made by bringing the outer edge of the second section of the coupling element into engagement with the first end of the piping element and bringing an outer edge of the second end of the second pipe line part into engagement with the second end of the piping element.
In a highly preferred embodiment of the method of the invention, the piping element and the coupling element are configured for establishing a compression fitting with both parts of the pipe line and with each other, wherein the sealing element and the further sealing element are formed as a compression ring, wherein during step f. of the method, a fluid tight connection in the form of a compression fit is created.
It is a further object of the present invention to provide a simple and cost effective element with which a piping element can be easily and reliably mounted in a pre-existing pipe line.
According to a second aspect, the invention relates to a rigid pipe coupling element, for use in the above described method according to the invention, for installation of a piping element in a gap in a pre-existing pipe line for fluid transport, which gap is defined by a spaced apart first and a second free end of the pipe line, wherein the rigid pipe coupling element comprises: a first, hollow, cylindrical section comprising at least a first end of the coupling element, which first section has a pipe line receiving portion which has an inner diameter and a length, so that it can slide over a first free end of a pipe line in use, wherein the first section is configured for establishing a fluid tight connection between the first end of the coupling element and an outer surface of the pipe line at its first free end, a second, hollow, cylindrical section comprising at least a second end of the coupling element opposite the first end, which second section has an outer diameter, wherein the first and second sections are permanently connected to each other, in a fluid-tight manner, and such that the pipe line receiving portion and the second section are concentric with respect to each other, and such that fluid can flow through the coupling element from the first end to the second end, and wherein the inner diameter of the pipe line receiving portion is slightly larger than the outer diameter of the second section. As a result, in use the second end of the coupling element resembles, i.e. simulates, i.e. copies, the first end of the pipe line, thereby allowing the use of standard commercially available piping elements and sealing elements, such as compression nuts, compression rings, or O-rings.
According to the invention a coupling element is provided which is, contrary to the interface of JP3084197U, simple, cost-efficient to manufacture, and very easy and effective to use for installing a piping element in a pre-existing pipe line. Due to the pipe line receiving portion, the gap in the pipe line can be made with a relatively large tolerance.
Within the framework of the present invention, with the inner diameter of the pipe line receiving portion being slightly larger than the outer diameter of the second section is meant that the difference in diameter only differs little, preferably less than 10 per cent, more preferably less than 5 per cent, such that an effective fluid tight connection can be achieved.
In an advantageous embodiment, the ratio of the length of the pipe line receiving portion and the length of the second section having the outer diameter is in the range of 2 to 4, preferably about 3. Preferably the length of the second section is such that a fluid tight connection between the second section and the pipe line can be established using standard couplings such as a compression fitting or an O-ring coupling.
Preferably, the length of the pipe line receiving portion is at least twice its inner diameter, and preferably maximum 10 times its inner diameter. More preferably, said length is between 3 and 6 times said inner diameter.
In a highly preferred embodiment, the first section has a thread on an outer wall surface thereof, at or at least near the first end.
Preferably, the coupling element is configured for establishing a compression fitting with a pipe line received with an end thereof in the pipe line receiving portion. If the above mentioned thread is present on the first section, a compression nut slid over the pipe line prior to sliding a compression ring and the coupling element over said pipe line, can be fastened on the first section by screwing it on the thread, thereby compressing the compression ring in between the nut and the first end of the coupling element.
In particular in this respect it is preferable if the pipe line receiving portion has at the first end a circumferential edge which is chamfered or rounded. Such a chamfered or rounded edge is highly suitable if a sealing element in the form of preferably an O-ring is used, or, alternatively for the purpose of establishing a compression fitting, a compression ring, by means of which the fluid tight connection between pipe line and first section of the coupling element can be realised.
It is advantageous if the second section has a continuous hollow, cylindrical shape having the outer diameter.
It is also preferred that the first and second sections are manufactured from one piece of material, wherein the coupling element is preferably of metal, preferably of steel or copper or brass.
Alternatively, the first and second sections may be permanently connected to each other through welding, soldering or gluing.
Preferably, the outer diameter of the second section is in the range of 5 to 60 mm.
In a preferred embodiment, the outer diameter of the second section is constant from the second end of the coupling element to the first section.
In an embodiment, the coupling element has a first section which is constituted by the pipe line receiving portion and an inwardly stepped wall part at the end of the first section opposite the first end of the coupling element, to which stepped wall part the second section, which is of constant outer diameter, is connected. The coupling element is made of one integral part. The inwardly stepped wall forms a stop for the pipe line received in the pipe line receiving portion. Preferably the first section is of constant outer diameter and having a tread at the first end of the coupling element.
The present invention will now be explained in more detail by a description of a preferred embodiment of a rigid pipe coupling element according to the present invention, with reference to the enclosed schematic figures, in which:
Figure 1 shows a schematic cross-sectional view of a preferred embodiment of a rigid pipe coupling element according to the invention, and
Figure 2 a - e show successive steps for installing a piping element in a pre-existing pipe line, using the rigid pipe coupling element of figure 1.
Figure 1 shows a rigid pipe coupling element 1 according to the invention. Coupling element 1 has a first, hollow cylindrical section 2 and a second, hollow, cylindrical section 4. Section 2 comprises a first end 6 of the coupling element. The first section 2 is substantially constituted by a pipe line receiving portion 10 which is of cylindrical shape and has an inner surface 12 and having a cross-sectional inner diameter Di and a length U. The inner diameter D-\ is constant along the length 1^. The pipeline receiving portion 10 is configured for receiving an end part of a pipeline therein. That means it can slide over a free end of a pipeline. The entrance of the pipeline receiving portion 10 at the first end 6 of the coupling element 1 has a circumferential edge 14 which is chamfered so as to provide for easy entrance of the free end of a pipeline and for at least partially accommodating a sealing element as will be explained below in more detail. On the outer surface of the first section 2, at, or at least near the first end 6 a tread 16 is provided onto which a compression nut can be screwed for the purpose of establishing a fluid tight connection by means of a compression fit between the first section 2 of the coupling element and the pipeline received in the pipeline receiving portion 10. The coupling element is made of metal, in this example of brass.
At an end of the first section 2 opposite the first end 6 of the coupling element an inwardly stepped wall part 18 is provided which forms a connection between the first section 2 and the second section 4.
The second section 4 consists of hollow cylinder with constant inner and outer diameter. The outer diameter D2 of the second section 4 is slightly smaller than the inner diameter Di of first section 2. The pipeline receiving portion 10 is configured so that it can slidingly fit around a specific type of pipeline such as for example a pipeline having an outer diameter of 15 mm. The outer diameter D2 is slightly smaller to such an extent that if it could, hypothetically, slide into the pipe line receiving portion 10, it would in fact resemble the free end of a pipeline.
The length of the pipeline receiving portion 10 is about three times the length of the second section 4. Also, the length of the pipeline receiving portion 10 is about 5 times the inner diameter D! thereof. Also, the inwardly stepped wall part 18 forms an end stop of the pipeline receiving portion 10. The inner diameter of the second section 4 is chosen such that it is about equal to the inner diameter of the specific type of pipeline for which the coupling element 1 is designed. That means, if an embodiment of the coupling element according to the invention would be designed for a pipeline having an outer diameter of 15 mm and an inner diameter of 13 mm, then D2 would be 15 mm, D! would slightly larger than D2, for example about 0.3 mm larger, and the inner diameter of the second section 4 would be about 13 mm. As a result, in use the coupling element 1 would form little or no restriction for fluid flowing through the coupling element 1.
The above described coupling element 1 can effectively be used in a method for installation of a piping element, such as a pipe fitting or a valve, in a preexisting rigid pipeline for fluid transport, as will be described in more detail below. In the example showing in the figures 2a-2e a piping element 20 in the form of a T-piece needs to be installed in the rigid pipeline 22 being a domestic water pipe line. Such a pipeline is normally fixed in the building such as in a wall or floor thereof. The pipeline 22 is made of metal, in this example copper, as well as the piping element 20. Formerly, the piping element 20 could only be installed in the pipeline 22 by laying open a significant portion of the pipe line, by subsequently removing a small portion out of the pipeline, bending the resulting parts of the pipeline outwards to such an extent that just sufficient room is created for placing therebetween the piping element, after which the pipeline parts are bended back to their original position due to which the ends of the pipeline extend sufficiently far into recesses of the piping element for the purpose of making a fluid tight connection. This known method is laborious and has a high chance of damage to the pipeline and/or piping element.
According to the invention, in a method of installing a piping element, use is made of the above described coupling element 1. As a first step a coupling element 1 designed for the specific size of pipeline 22, and piping element 20 are provided. A piece of the pipeline 22 is removed so as to create a gap 24 having a length slightly greater than the length of the coupling element 1 as shown in figure 2b. The pipeline 22 is thus split into a first pipeline part 22’ having a first free end 22a and a second pipeline part 22” having a second free end 22b.
Next, a compression nut 28 and a compression ring 30 are slid over the first pipeline part 22’, after which the coupling element 1 is slid over the first pipeline part 22’, or at least over the free end 22a thereof, with its pipeline receiving portion 10.
Next, the piping element 20 is positioned in the gap 24 after which it is brought in connection with the free end 22b of the second pipe line part 22”. Also, the coupling element 1 is slid back in the direction of the second pipeline part 22” until the second end 8 of the coupling element 1 has been brought in connection with an end of the piping element 20 facing the coupling element 1, wherein the free end 22a of the first pipeline part 22’ is still within the pipeline receiving portion 10 of the coupling element 1. After said connections are made, a fluid tight connection can be made between the first end 6 of the coupling element 1 and the first part 22’ of the pipeline 22, between the coupling element 22 and the piping element 20, and between the piping element 20 and the second pipeline part 22”, all by means of a compression fit connection using compression nuts and compression rings.

Claims (15)

1. Een werkwijze voor installatie van een pijpelement, zoals een pijpfitting, een klep, of een in-lijn apparaat zoals een watermeter, in een bestaande starre pijpleiding voor fluïdumtransport, omvattende de stappen van: a. het verschaffen van een pijpelement, en het verschaffen van een star pijpkoppelelement omvattende een eerste, hol, cilindrisch gedeelte dat ten minste een eerste uiteinde van het koppelelement omvat, waarbij het eerste gedeelte een pijpleiding-opneemgedeelte heeft dat een binnendiameter en een lengte heeft, zodat het kan schuiven over een eerste vrij uiteinde van een pijpleiding in gebruik, waarbij het eerste gedeelte is geconfigureerd voor het tot stand brengen van een fluïdumdichte verbinding tussen het eerste uiteinde van het koppelelement en een buitenoppervlak van de pijpleiding aan het eerste vrij uiteinde ervan, en waarbij het koppelelement een tweede, hol, cilindrisch gedeelte omvat, dat ten minste een tweede uiteinde van het koppelelement tegenover gelegen aan het eerste uiteinde omvat, waarbij het tweede gedeelte een buitendiameter heeft, waarbij de eerste en tweede gedeelten duurzaam met elkaar zijn verbonden, op een fluïdumdichte wijze, en zodanig dat het pijpleiding-opneemgedeelte en het tweede gedeelte concentrisch ten opzichte van elkaar zijn, en zodanig dat het fluïdum door het koppelelement kan stromen van het eerste uiteinde naar het tweede uiteinde, en waarbij de binnendiameter van het pijpleiding-opneemgedeelte een weinig groter is dan de buitendiameter van het tweede gedeelte, b. het verwijderen van een deel van de pijpleiding voor het creëren van een tussenruimte voor installatie van het pijpelement en het koppelelement, waarbij de tussenruimte een lengte heeft die groter is dan de lengte van het star pijpkoppelelement en die groter is dan een lengte van het pijpelement, en die kleiner is dan de som van de lengtes van het starre pijpkoppelelement en het pijpelement, om zodoende een eerste pijpleidingdeel met een eerste vrij uiteinde en een tweede pijpleidingdeel met een tweede vrij uiteinde te creëren, waarbij de genoemde eerste en tweede vrije uiteinden van elkaar zijn gescheiden door de tussenruimte, c. het schuiven van het starre pijpkoppelelement met het pijpleiding-opneemgedeelte ervan over het eerste pijpleidingdeel, d. het positioneren van het pijpelement in de tussenruimte, e. het schuiven van het koppelelement terug in de richting van het tweede pijpleidingdeel tot dat het tweede uiteinde van het koppelelement is verbonden met een eerste uiteinde van het pijpelement en een tweede uiteinde van het pijpelement is verbonden met het tweede vrij uiteinde van het tweede pijpleidingdeel, en f. het creëren van een fluïdumdichte verbinding tussen het eerste uiteinde van het koppelelement en het eerste pijpleidingdeel, tussen het koppelelement en het pijpelement, en tussen het pijpelement en het tweede pijpleidingdeel.A method for installing a pipe element, such as a pipe fitting, a valve, or an in-line device such as a water meter, into an existing rigid pipeline for fluid transport, comprising the steps of: a. Providing a pipe element, and providing a rigid pipe coupling element comprising a first, hollow, cylindrical part comprising at least a first end of the coupling element, the first part having a pipeline receiving part having an inner diameter and a length so that it can slide over a first free end of a pipeline in use, wherein the first portion is configured to establish a fluid-tight connection between the first end of the coupling element and an outer surface of the pipeline at its first free end, and wherein the coupling element has a second, hollow, cylindrical portion, which has at least one second end of the coupling element opposite comprises at the first end, the second portion having an outer diameter, the first and second portions being permanently connected to each other, in a fluid-tight manner, and such that the pipeline receiving portion and the second portion are concentric with respect to each other, and such that the fluid can flow through the coupling element from the first end to the second end, and wherein the inner diameter of the pipeline receiving portion is slightly larger than the outer diameter of the second portion, b. removing a portion of the pipeline to create a gap for installation of the pipe element and the coupling element, the gap having a length that is greater than the length of the rigid pipe coupling element and that is greater than a length of the pipe element, and which is less than the sum of the lengths of the rigid pipe coupling element and the pipe element, so as to create a first pipeline part with a first free end and a second pipeline part with a second free end, said first and second free ends being apart are separated by the gap, c. sliding the rigid pipe coupling element with its pipeline receiving portion over the first pipeline part, d. positioning the pipe element in the gap, e. sliding the coupling element back in the direction of the second pipeline part until the second end of the coupling element is connected to a first end of the pipe element and a second end of the pipe element is connected to the second free end of the second pipeline part, and f. creating a fluid-tight connection between the first end of the coupling element and the first pipeline part, between the coupling element and the pipe element, and between the pipe element and the second pipeline part. 2. Een werkwijze volgens conclusie 1, waarbij tijdens stap c. eerst een additioneel afdichtingselement over het eerste pijpleidingdeel wordt geschoven, waarna het koppelelement over het eerste pijpleidingdeel wordt geschoven, waarbij tijdens stap f., het afdichtingselement in contact wordt gebracht met het eerste uiteinde van het koppelelement.A method according to claim 1, wherein during step c. first an additional sealing element is slid over the first pipeline part, whereafter the coupling element is slid over the first pipeline part, wherein during step f., the sealing element is brought into contact with the first end of the coupling element. 3. Een werkwijze volgens conclusie 1 of 2, waarbij tijdens stap e. een verder additioneel afdichtingselement over het tweede gedeelte van het koppelelement wordt geschoven voorafgaand aan het wederzijds aangrijpen van het koppelelement en het pijpelement, voor het tot stand brengen van een fluïdumdichte verbinding tussen het koppelelement en het pijpelement.A method according to claim 1 or 2, wherein during step e. a further additional sealing element is slid over the second portion of the coupling element prior to mutual engagement of the coupling element and the pipe element, for establishing a fluid-tight connection between the coupling element and the pipe element. 4. Een werkwijze volgens conclusie 1, 2 of 3, waarbij een eerste en een tweede uiteinde van het pijpelement zijn gevormd als uitsparingen die zijn geconfigureerd, ten behoeve van het tot stand brengen van een verbinding, voor het respectievelijk aangrijpen van een buitenrand van het tweede gedeelte van het koppelelement en een buitenrand van het tweede uiteinde van het tweede pijpleidingdeel, waarbij de verbindingen volgens stap d. worden gemaakt door de buitenrand van het tweede gedeelte van het koppelelement in aangrijping te brengen met het eerste uiteinde van het pijpelement en door een buitenrand van het tweede uiteinde van het tweede pijpleidingdeel in aangrijping te brengen met het tweede uiteinde van het pijpelement.A method according to claim 1, 2 or 3, wherein a first and a second end of the pipe element are formed as recesses configured for the purpose of establishing a connection for engaging an outer edge of the pipe second part of the coupling element and an outer edge of the second end of the second pipeline part, the connections according to step d. be made by bringing the outer edge of the second part of the coupling element into engagement with the first end of the pipe element and by bringing an outer edge of the second end of the second pipeline part into engagement with the second end of the pipe element. 5. Een werkwijze volgens elke willekeurige van de voorgaande conclusies 2, 3 en 4, waarbij het pijpelement en het koppelelement zijn geconfigureerd voor het tot stand brengen van een compressiefitting met beide delen van de pijpleiding en met elkaar, waarbij het afdichtingselement en het verdere afdichtingselement zijn gevormd als een compressiering, waarbij tijdens stap f. van de werkwijze, een fluïdumdichte verbinding in de vorm van een compressiepassing wordt gecreëerd.A method according to any of the preceding claims 2, 3 and 4, wherein the pipe element and the coupling element are configured to establish a compression fitting with both parts of the pipeline and with each other, wherein the sealing element and the further sealing element are formed as a compression ring, wherein during step f. of the method, a fluid-tight connection in the form of a compression fitting is created. 6. Een star pijpkoppelelement, voor toepassing in de werkwijze volgens elke willekeurige van de voorgaande conclusies, voor installatie van een pijpelement in een tussenruimte in een bestaande pijpleiding voor fluïdumtransport, waarbij de tussenruimte is gedefinieerd door een van elkaar gescheiden eerste en tweede vrij uiteinde van de pijpleiding, waarbij het star pijpkoppelelement omvat: - een eerste, hol, cilindrisch gedeelte dat ten minste een eerste uiteinde van het koppelelement omvat, waarbij het eerste gedeelte een pijpleiding-opneemgedeelte heeft dat een binnendiameter en een lengte heeft, zodat het kan schuiven over een eerste vrij uiteinde van een pijpleiding in gebruik, waarbij het eerste gedeelte is geconfigureerd voor het tot stand brengen van een fluïdumdichte verbinding tussen het eerste uiteinde van het koppelelement en een buitenoppervlak van de pijpleiding aan het eerste vrij uiteinde ervan, - een tweede, hol, cilindrisch gedeelte omvattende ten minste een tweede uiteinde van het koppelelement tegenover gelegen aan het eerste uiteinde, waarbij het tweede gedeelte een buitendiameter heeft, waarbij de eerste en tweede gedeelten duurzaam met elkaar zijn verbonden, op een fluïdumdichte wijze, en zodanig dat het pijpleiding-opneemgedeelte en het tweede gedeelte concentrisch ten opzichte van elkaar zijn, en zodanig dat het fluïdum door het koppelelement kan stromen van het eerste uiteinde naar het tweede uiteinde, en waarbij de binnendiameter van het pijpleiding-opneemgedeelte een weinig groter is dan de buitendiameter van het tweede gedeelte.A rigid pipe coupling element, for use in the method according to any one of the preceding claims, for installation of a pipe element in a gap in an existing pipeline for fluid transport, the gap being defined by a separated first and second free end of the pipeline, wherein the rigid pipe coupling element comprises: - a first, hollow, cylindrical part comprising at least a first end of the coupling element, the first part having a pipeline receiving part that has an inner diameter and a length so that it can slide over a first free end of a pipeline in use, the first portion being configured to establish a fluid-tight connection between the first end of the coupling element and an outer surface of the pipeline at its first free end, - a second hollow , cylindrical portion comprising at least a second onion end of the coupling element opposite to the first end, the second portion having an outer diameter, the first and second portions being permanently connected to each other, in a fluid-tight manner, and such that the pipeline receiving portion and the second portion are concentric with from each other, and such that the fluid can flow through the coupling element from the first end to the second end, and wherein the inner diameter of the pipeline receiving portion is slightly larger than the outer diameter of the second portion. 7. Een star pijpkoppelelement volgens conclusie 6, waarbij de verhouding van de lengte van het pijpleiding-opneemgedeelte en de lengte van het tweede gedeelte dat de buitendiameter heeft in het bereik is van 2 tot 4, bij voorkeur ongeveer 3.A rigid pipe coupling element according to claim 6, wherein the ratio of the length of the pipeline receiving portion and the length of the second portion having the outer diameter is in the range of 2 to 4, preferably about 3. 8. Een star pijpkoppelelement volgens conclusie 6 of 7, waarbij de lengte van het pijpleiding-opneemgedeelte ten minste twee keer de binnendiameter ervan is.A rigid pipe coupling element according to claim 6 or 7, wherein the length of the pipeline receiving section is at least twice its inner diameter. 9. Een star pijpkoppelelement volgens de conclusies 6, 7 of 8, waarbij het eerste gedeelte een schroefdraad heeft op de buitenwand daarvan, aan of ten minste nabij het eerste uiteinde.A rigid pipe coupling element according to claim 6, 7 or 8, wherein the first portion has a screw thread on the outer wall thereof, at or at least near the first end. 10. Een star pijpkoppelelement volgens elke willekeurige van de conclusies 6 tot en met 9, waarbij het pijpleiding-opneemgedeelte aan het eerste uiteinde een omtreksrand heeft die afgeschuind of afgerond is.A rigid pipe coupling element according to any of claims 6 to 9, wherein the pipeline receiving portion has a peripheral edge at the first end that is chamfered or rounded. 11. Een star pijpkoppelelement volgens elke willekeurige van de conclusies 6 tot en met 10, waarbij het tweede gedeelte een continue holle, cilindrische vorm heeft die de buitendiameter heeft.A rigid pipe coupling element according to any of claims 6 to 10, wherein the second portion has a continuous hollow, cylindrical shape that has the outer diameter. 12. Een star pijpkoppelelement volgens elke willekeurige van de conclusies 6 tot en met 11, gekenmerkt doordat de eerste en tweede gedeelten zijn vervaardigd uit één stuk materiaal, waarbij het koppelelement bij voorkeur van metaal is, bij voorkeur van staal of koper of messing.A rigid pipe coupling element according to any of the claims 6 to 11, characterized in that the first and second parts are made of one piece of material, the coupling element preferably being made of metal, preferably steel or copper or brass. 13. Een star pijpkoppelelement volgens elke willekeurige van de conclusies 6 tot en met 11, waarbij de eerste en tweede gedeelten duurzaam met elkaar zijn verbonden door lassen, solderen of lijmen.A rigid pipe coupling element according to any of claims 6 to 11, wherein the first and second sections are permanently connected to each other by welding, soldering or gluing. 14. Een star pijpkoppelelement volgens elke willekeurige van de conclusies 6 tot en met 13, waarbij de buitendiameter van het tweede gedeelte in het bereik van 5 tot 60 mm is.A rigid pipe coupling element according to any of the claims 6 to 13, wherein the outer diameter of the second portion is in the range of 5 to 60 mm. 15. Een star pijpkoppelelement volgens elke willekeurige van de conclusies 6 tot en met 14, waarbij de buitendiameter van het tweede gedeelte constant is van het tweede uiteinde van het koppelelement tot het eerste gedeelte.A rigid pipe coupling element according to any of claims 6 to 14, wherein the outer diameter of the second part is constant from the second end of the coupling element to the first part.
NL2012265A 2014-02-14 2014-02-14 Method for installing a piping element in a pre-existing pipe line, and coupling element for use in such a method. NL2012265C2 (en)

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NL2012265A NL2012265C2 (en) 2014-02-14 2014-02-14 Method for installing a piping element in a pre-existing pipe line, and coupling element for use in such a method.

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US666316A (en) * 1899-02-01 1901-01-22 William Kenneally Pipe and pipe-joint.
BE905144A (en) * 1986-07-22 1986-11-17 Nijs Robert De Coupling to repair leak in or connect e.g. water tube - has larger-dia. coupling tube to fit over tube end with interposed seal pressurised by cap nut
FR2608728A1 (en) * 1986-12-23 1988-06-24 Wahl Michel Connection sleeve for pipework
DE202013000812U1 (en) * 2012-01-30 2013-03-18 Thomas Haas Pipe kit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US666316A (en) * 1899-02-01 1901-01-22 William Kenneally Pipe and pipe-joint.
BE905144A (en) * 1986-07-22 1986-11-17 Nijs Robert De Coupling to repair leak in or connect e.g. water tube - has larger-dia. coupling tube to fit over tube end with interposed seal pressurised by cap nut
FR2608728A1 (en) * 1986-12-23 1988-06-24 Wahl Michel Connection sleeve for pipework
DE202013000812U1 (en) * 2012-01-30 2013-03-18 Thomas Haas Pipe kit

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