NO337569B1 - Device by clamping coupling - Google Patents
Device by clamping coupling Download PDFInfo
- Publication number
- NO337569B1 NO337569B1 NO20140560A NO20140560A NO337569B1 NO 337569 B1 NO337569 B1 NO 337569B1 NO 20140560 A NO20140560 A NO 20140560A NO 20140560 A NO20140560 A NO 20140560A NO 337569 B1 NO337569 B1 NO 337569B1
- Authority
- NO
- Norway
- Prior art keywords
- coupling
- sealing element
- seal
- clamp
- secondary seal
- Prior art date
Links
- 230000008878 coupling Effects 0.000 title claims description 43
- 238000010168 coupling process Methods 0.000 title claims description 43
- 238000005859 coupling reaction Methods 0.000 title claims description 43
- 238000007789 sealing Methods 0.000 claims description 37
- 238000012360 testing method Methods 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 10
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000011016 integrity testing Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
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- 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
- F16L23/00—Flanged joints
- F16L23/16—Flanged joints characterised by the sealing means
- F16L23/18—Flanged joints characterised by the sealing means the sealing means being rings
- F16L23/20—Flanged joints characterised by the sealing means the sealing means being rings made exclusively of metal
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- 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
- F16L23/00—Flanged joints
- F16L23/16—Flanged joints characterised by the sealing means
- F16L23/18—Flanged joints characterised by the sealing means the sealing means being rings
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/035—Well heads; Setting-up thereof specially adapted for underwater installations
- E21B33/038—Connectors used on well heads, e.g. for connecting blow-out preventer and riser
-
- 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
- F16L23/00—Flanged joints
- F16L23/04—Flanged joints the flanges being connected by members tensioned in the radial plane
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/007—Leak detector calibration, standard leaks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2853—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipe joints or seals
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Gasket Seals (AREA)
- Seal Device For Vehicle (AREA)
- Clamps And Clips (AREA)
- Vehicle Body Suspensions (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Cable Accessories (AREA)
- Flanged Joints, Insulating Joints, And Other Joints (AREA)
Description
ANORDNING VED KLEMMEKOPLING DEVICE FOR CLAMP CONNECTION
Denne oppfinnelse vedrører en klemmekopling. Nærmere bestemt dreier det seg om en klemmekopling som omfatter to koplingshalvdeler, et tetningselement og en klemme, og hvor det i bruksstilling, mellom koplingshalvdelene og tetningselementet, er anordnet minst én primærtetning og minst én sekundærtetning, idet en testkanal for-løper fra mellom primærtetningen og sekundærtetningen og til tetningselementets utside, og hvor sekundærtetningen utgjøres av en metall-mot-metalltetning. This invention relates to a clamp connection. More specifically, it concerns a clamp coupling which comprises two coupling halves, a sealing element and a clamp, and where in use position, between the coupling halves and the sealing element, at least one primary seal and at least one secondary seal are arranged, with a test channel extending from between the primary seal and the secondary seal and to the outside of the sealing element, and where the secondary seal consists of a metal-to-metal seal.
Oppfinnelsen omhandler en anordning for mere pålitelig å kunne kontrollere om en rørkopling av arten klemmekopling er tett. The invention relates to a device for more reliably checking whether a pipe connection of the clamp connection type is tight.
Klemmekoplinger av denne art er velkjent i industrien og markedsføres av flere leve-randører. Freudenberg Oil & Gas Technologies LTD, UK, markedsfører klemmekoplingen som Vector Techlok Clamp Connector, Graylock Products, TX, USA, markedsfører den som Clamp Connector, og Galperi Engineering, Italia markedsfører den som G-lok. Clamp connectors of this type are well known in the industry and are marketed by several suppliers. Freudenberg Oil & Gas Technologies LTD, UK markets the clamp connector as Vector Techlok Clamp Connector, Graylock Products, TX, USA markets it as Clamp Connector, and Galperi Engineering, Italy markets it as G-lok.
Særlig etter montering av rørkoplinger, men også under drift, kan det være ønskelig å kontrollere at klemmekoplingen er tett. Especially after fitting pipe connections, but also during operation, it may be desirable to check that the clamp connection is tight.
Freudenberg har utviklet en anordning for såkalt «Reverse Integrety Testing» RIT, hvor det mellom koplingens primærtetning og en sekundærtetning påsettes et trykk for å kunne teste primærtetningen. Se h tt p: // www. vecto rtq/ reve rs ed - i n teq retv-testinq/. Freudenbergs RIT-verktøy er imidlertid utformet slik at sekundærtetningens trykkmotstand ikke alltid er tilstrekkelig til å kunne gjennomføre tester ved ønsket trykk. Freudenberg has developed a device for so-called "Reverse Integrity Testing" RIT, where a pressure is applied between the coupling's primary seal and a secondary seal in order to test the primary seal. See h tt at: // www. vecto rtq/ reve rs ed - i n teq retv-testinq/. However, Freudenberg's RIT tool is designed so that the pressure resistance of the secondary seal is not always sufficient to carry out tests at the desired pressure.
GB952755A beskriver en rørkopling med et tetningselement som er anbrakt mellom to flenser, omfatter en første leppetetning og en andre tetning som kan være i form av en plan tetningsflate eller en andre leppetetning. Fra rommet mellom primær- og sekundærtetningene går en kanal gjennom tetningselementet til elementets utside for registrering av lekkasje. Tetningselementet er fortrinnsvis tildannet av metall. DE202006002457U1 beskriver en flenskopling med et tetningselement omfattende en primærtetning, en sekundærtetning og en kanal som strekker seg gjennom tetningselementet slik at mellomrommet mellom tetningene er forbundet med omgivelsene. Sekundærtetningen utgjøres av et element som kan være av metall. GB952755A describes a pipe connection with a sealing element which is placed between two flanges, comprises a first lip seal and a second seal which can be in the form of a flat sealing surface or a second lip seal. From the space between the primary and secondary seals, a channel runs through the sealing element to the outside of the element for recording leakage. The sealing element is preferably made of metal. DE202006002457U1 describes a flange coupling with a sealing element comprising a primary seal, a secondary seal and a channel which extends through the sealing element so that the space between the seals is connected to the surroundings. The secondary seal consists of an element which can be made of metal.
US4019371A beskriver en klemmekopling med primær- og sekundærtetninger samt en testkanal. Sekundærtetningene utgjøres av ordinære O-ringer. US4019371A describes a clamp connection with primary and secondary seals and a test channel. The secondary seals consist of ordinary O-rings.
WO03027561A1 viser et flatt tetningselement mellom to flenser med en kanal mellom primær-/sekundærtetningene og tetningselementets utside. Ytterligere pakninger an-vendes på hver side av tetningselementet. WO03027561A1 shows a flat sealing element between two flanges with a channel between the primary/secondary seals and the outside of the sealing element. Additional gaskets are used on each side of the sealing element.
Oppfinnelsen har til formål å avhjelpe eller redusere i det minste én av ulempene ved kjent teknikk. The purpose of the invention is to remedy or reduce at least one of the disadvantages of known technology.
Formålet oppnås i henhold til oppfinnelsen ved de trekk som er angitt i nedenstående beskrivelse og i de etterfølgende patentkrav. The purpose is achieved according to the invention by the features indicated in the description below and in the subsequent patent claims.
Det er tilveiebrakt en anordning ved klemmekopling hvor klemmekoplingen omfatter to koplingshalvdeler, et tetningselement og en klemme, og hvor det i bruksstilling, mellom koplingshalvdelene og tetningselementet, er anordnet minst én primærtetning og minst én sekundærtetning, idet en testkanal forløper fra mellom primærtetningen og sekundærtetningen og til tetningselementets utside, og hvor klemmekoplingen kjennetegnes ved at sekundærtetningen utgjøres av en metall-mot-metalltetning. A device for a clamp connection is provided where the clamp connection comprises two coupling halves, a sealing element and a clamp, and where in use position, between the coupling halves and the sealing element, at least one primary seal and at least one secondary seal are arranged, with a test channel extending from between the primary seal and the secondary seal and to the outside of the sealing element, and where the clamp connection is characterized by the secondary seal consisting of a metal-to-metal seal.
En metall-mot-metalltetning holder normalt tett opp til et vesentlig høyere trykk enn det som kan oppnås ved for eksempel enkle O-ringtetninger og lignende kunststoff-tetn inger. A metal-to-metal seal normally holds tight up to a significantly higher pressure than can be achieved with, for example, simple O-ring seals and similar plastic seals.
Det er derfor ved hjelp av oppfinnelsen mulig å teste klemmekoplinger opp til samme testtrykk som for de øvrige komponenter i for eksempel en rørlinje eller en del av et prosessanlegg. With the help of the invention, it is therefore possible to test clamp connections up to the same test pressure as for the other components in, for example, a pipeline or part of a process plant.
Sekundærtetningen kan omfatteren omkransende rygg som befinner seg på tetningselementet. Det er selvfølgelig mulig, men sannsynligvis lite praktisk, å anordne ryggene i koplingshalvdelenes koplingsflater. The secondary seal may comprise a surrounding ridge located on the sealing element. It is of course possible, but probably impractical, to arrange the ridges in the coupling surfaces of the coupling halves.
Det er vanligvis gunstig å anordne flere rygger utenfor hverandre i radial retning. Det oppnås derved at sekundærtetningen ytterligere sikres mot lekkasje. It is usually advantageous to arrange several ridges outside each other in the radial direction. It is thereby achieved that the secondary seal is further secured against leakage.
Ryggene kan ved sitt anlegg mot koplingsflaten ha en profil av enhver hensiktsmessig form. Avhengig av de rådende forhold og materialvalg kan ryggene for eksempel ha en krum eller en skarp profil. The ridges can have a profile of any appropriate shape when they abut against the coupling surface. Depending on the prevailing conditions and choice of material, the backs can, for example, have a curve or a sharp profile.
Normalt er tetningselementet utformet i ett materialstykke. Under noen forhold kan tetningselementet være fremstilt i flere komponenter. Normally, the sealing element is designed in one piece of material. Under some conditions, the sealing element can be produced in several components.
Anordningen i henhold til oppfinnelsen tilrettelegger for en sikker testing av disse mye anvendte rørkoplinger ved ønsket trykk og ved hjelp av enkle midler. The device according to the invention facilitates a safe testing of these widely used pipe connections at the desired pressure and by means of simple means.
Oppfinnelsen er definert av det selvstendige patentkravet. De uselvstendige kravene definerer fordelaktige utførelser av oppfinnelsen. The invention is defined by the independent patent claim. The independent claims define advantageous embodiments of the invention.
Oppfinnelsen vedrører mer spesifikt en anordning ved klemmekopling omfattende to koplingshalvdeler, et tetningselement og en klemme, hvor det i bruksstilling, mellom koplingshalvdelene og tetningselementet, er anordnet minst én primærtetning og minst én sekundærtetning, idet en testkanal forløper fra mellom primærtetningen og sekundærtetningen og til tetningselementets utside, og hvor sekundærtetningen ut-gjøres av en metall-mot-metalltetning, kjennetegnet ved at sekundærtetningen omfatter flere omkransende rygger anordnet utenfor hverandre i radial retning. The invention relates more specifically to a clamp coupling device comprising two coupling halves, a sealing element and a clamp, where in the use position, between the coupling halves and the sealing element, at least one primary seal and at least one secondary seal are arranged, with a test channel running from between the primary seal and the secondary seal and to the sealing element's outside, and where the secondary seal consists of a metal-to-metal seal, characterized in that the secondary seal comprises several encircling ridges arranged outside each other in the radial direction.
Ryggen kan ved sitt anlegg mot koplingsflaten ha en krum profil. Alternativt kan ryggen ved sitt anlegg mot koplingsflaten ha en skarp profil. The ridge can have a curved profile when it abuts the coupling surface. Alternatively, the back can have a sharp profile when it abuts against the coupling surface.
I det etterfølgende beskrives et eksempel på en foretrukket utførelsesform som er anskueliggjort på medfølgende tegninger, hvor: Fig. 1 viser i lengdesnitt en klemmekopling under sammenkopling; Fig. 2 viser det samme som i fig. 1, men etter at klemmekoplingen er aktivert; Fig. 3 viser perspektivisk klemmekoplingens tetningselement i noe større målestokk; Fig. 4 viser i større målestokk et snitt av et tetningselement; In what follows, an example of a preferred embodiment is described which is visualized in the accompanying drawings, where: Fig. 1 shows a longitudinal section of a clamp connection during connection; Fig. 2 shows the same as in fig. 1, but after the clamp connection is activated; Fig. 3 shows a perspective view of the clamp coupling's sealing element on a somewhat larger scale; Fig. 4 shows on a larger scale a section of a sealing element;
Fig. 5 viser i ytterligere større målestokk et utsnitt fra fig. 4; og Fig. 5 shows on an even larger scale a section from fig. 4; and
Fig. 6 viser det samme som i fig. 5, men i en annen utførelsesform. Fig. 6 shows the same as in fig. 5, but in a different embodiment.
På tegningene betegner henvisningstallet 1 en klemmekopling som i denne utførelses-form omfatter en første koplingshalvdel 2 og en identisk andre koplingshalvdel 4. Koplingshavdelene 2, 4 som er utformet til å kunne forbindes til tilstøtende, ikke viste rør, er forsynt med i bruksstilling mot hverandre seg befinnende koplingsflater 6. Pa sin innside og ragende fra sin respektive koplingsflate 6 er hver av koplingshalvdelene 2, 4 utformet med en konisk tetningsflate 8 som munner ut i en sentrisk gjennomgående åpning 10 i koplingshalvdelen 2, 4. Det kan nevnes at den gjennomgående åpning 10 for ulike formål kan være tett eller være utformet med en ikke vist reduksjon eller annen strømningsregulerende funksjon. In the drawings, the reference number 1 denotes a clamp coupling which, in this embodiment, comprises a first coupling half 2 and an identical second coupling half 4. The coupling parts 2, 4, which are designed to be able to be connected to adjacent pipes, not shown, are provided with in use position against each other located coupling surfaces 6. On its inside and projecting from its respective coupling surface 6, each of the coupling halves 2, 4 is designed with a conical sealing surface 8 which opens into a centric through opening 10 in the coupling half part 2, 4. It can be mentioned that the through opening 10 for various purposes can be tight or be designed with a not shown reduction or other flow regulating function.
En klemme 12 omkranser koplingshalvdelene 2, 4. Klemmens 12 innvendige, koniske klemflater 14 ligger an mot koplingshalvdelenes 2, 4 utvendige koniske flater 16. Når klemmen 12 trekkes radialt sammen, forskyves koplingshalvdelene 2, 4 sammen, se fig. 2. A clamp 12 encircles the coupling halves 2, 4. The internal, conical clamping surfaces 14 of the clamp 12 rest against the external conical surfaces 16 of the coupling halves 2, 4. When the clamp 12 is pulled radially together, the coupling halves 2, 4 are displaced together, see fig. 2.
Et tetningselement 18 er anbrakt mellom koplingsflatene 6 på koplingshalvdelene 2, 4. A sealing element 18 is placed between the coupling surfaces 6 of the coupling halves 2, 4.
Tetningselementet 18 omfatter et ringformet plateparti 20 som har en gjennomgående åpning 22. Ved den gjennomgående åpning 22 er platepartiet 20 forsynt med et ringformet, i aksial retning, til hver side ragende utstikk 24. The sealing element 18 comprises an annular plate part 20 which has a through opening 22. At the through opening 22, the plate part 20 is provided with an annular projection 24 projecting in the axial direction to each side.
Utstikkene 24 er utvendig utformet med koniske ringflater 26 som komplementært passer i tetningsflatene 8 og utgjør i bruksstilling klemkoplingens 1 to primærtetninger 28, se nedenfor. The protrusions 24 are designed on the outside with conical ring surfaces 26 which complementarily fit into the sealing surfaces 8 and make up the clamp coupling 1's two primary seals 28 in use position, see below.
På de sider av platepartiet 20 som i bruksstilling vender mot koplingsflatene 6, er tetningselementet 18 forsynt med fortrinnsvis omkransende eller oppdelte spor 30. Det er typisk anordnet flere spor 30 utenfor hverandre, typisk i en korrugeringslignende form. On the sides of the plate portion 20 which in use position face the coupling surfaces 6, the sealing element 18 is provided with preferably encircling or divided grooves 30. Typically several grooves 30 are arranged outside each other, typically in a corrugation-like form.
Mellom sporene 30 og gjerne ved siden av sporene 30 er det tildannet rygger 32 som, når de trekkes inn mot sine respektive koplingsflater 6, utgjør en metall-mot-metall-sekundærtetning 34. Profilen av spor 30 og rygger 32 kan for eksempel inneha en sinuskurvelignende form slik det er vist i fig. 5, en form hvor ryggene 32 har en kvas-sere form slik det er indikert i fig. 6, eller en annen hensiktsmessig, ikke vist form. Between the grooves 30 and preferably next to the grooves 30, ridges 32 are formed which, when drawn in towards their respective connecting surfaces 6, form a metal-to-metal secondary seal 34. The profile of grooves 30 and ridges 32 can, for example, have a sine curve-like shape as shown in fig. 5, a shape where the ridges 32 have a more square shape as indicated in fig. 6, or another suitable form, not shown.
En ringformet nedsenkning 36 på hver side av platepartiet 20, mellom ringflatene 26 og sporene 30, utgjør et testspor som ved hjelp av en testkanal 38 kommuniserer med tetningselementets 18 radielle utside hvor det kan være koplet til passende, ikke vist testutstyr. An annular depression 36 on each side of the plate portion 20, between the ring surfaces 26 and the grooves 30, forms a test groove which, by means of a test channel 38, communicates with the radial outside of the sealing element 18 where it can be connected to suitable, not shown, test equipment.
Når klemkoplingen 1 er anordnet slik det er vist i fig. 1 og klar for sammenkopling, er tetningselementet 18 anbrakt mellom koplingshalvdelene 2, 4. Fortrinnsvis er tetningselementets 18 begge koniske flater 26 ført inn i sine respektive tetningsflater 8. When the clamp connection 1 is arranged as shown in fig. 1 and ready for connection, the sealing element 18 is placed between the coupling halves 2, 4. Preferably, both conical surfaces 26 of the sealing element 18 are inserted into their respective sealing surfaces 8.
Når klemmen 12 med sine innvendige klemflater 14 legges an mot koplingshalvdelenes 2, 4 og deretter trekkes radialt til innover de koniske flatene 16, forskyves de to koplingshalvdelene 2, 4 mot hverandre mens hver ringflate 26 under radial, elastisk deformasjon skyves inn i sin respektive tetningsflate 8. Denne forspenningen bevirker at hver ringflate 26 sammen med tetn i ngsf laten 8 utgjør en sikker primærtetning 28. When the clamp 12 with its internal clamping surfaces 14 is placed against the coupling halves 2, 4 and then pulled radially inwards towards the conical surfaces 16, the two coupling halves 2, 4 are displaced towards each other while each ring surface 26 is pushed into its respective sealing surface under radial, elastic deformation 8. This bias causes each ring surface 26 together with the seal in the sealing surface 8 to form a secure primary seal 28.
Koplingsflatene 6 trekkes inn mot platepartiet 20 hvor ryggene 32 sammen med koplingsflatene 6 danner klemmekoplingens 1 sekundærtetning 34 som er en metall-mot-metalltetning. The coupling surfaces 6 are drawn in towards the plate portion 20 where the ridges 32 together with the coupling surfaces 6 form the clamp coupling 1's secondary seal 34 which is a metal-to-metal seal.
Ved å trykksette området mellom primærtetningen 28 og sekundærtetningen 34 kan primærtetningens 28 integritet testes ved relativt høye trykk. By pressurizing the area between the primary seal 28 and the secondary seal 34, the integrity of the primary seal 28 can be tested at relatively high pressures.
Claims (3)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO20140560A NO337569B1 (en) | 2014-04-30 | 2014-04-30 | Device by clamping coupling |
| GB1617910.3A GB2542040B (en) | 2014-04-30 | 2015-04-23 | Clamp coupling device |
| PCT/NO2015/050072 WO2015167343A1 (en) | 2014-04-30 | 2015-04-23 | Clamp coupling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO20140560A NO337569B1 (en) | 2014-04-30 | 2014-04-30 | Device by clamping coupling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NO20140560A1 NO20140560A1 (en) | 2015-11-02 |
| NO337569B1 true NO337569B1 (en) | 2016-05-09 |
Family
ID=54358948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO20140560A NO337569B1 (en) | 2014-04-30 | 2014-04-30 | Device by clamping coupling |
Country Status (3)
| Country | Link |
|---|---|
| GB (1) | GB2542040B (en) |
| NO (1) | NO337569B1 (en) |
| WO (1) | WO2015167343A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105334000B (en) * | 2015-12-08 | 2017-08-25 | 天津博益气动股份有限公司 | Laminar flow pipe identifying system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB952755A (en) * | 1959-10-28 | 1964-03-18 | Gray Tool Co | Improved coupling for fluid pressure duct |
| US4019371A (en) * | 1976-01-28 | 1977-04-26 | Exxon Production Research Company | Apparatus and method for externally testing conduit connections |
| WO2003027561A1 (en) * | 2001-09-26 | 2003-04-03 | Ann Helen Hystad | An arrangement for monitoring and/or testing of flange joints |
| DE202006002457U1 (en) * | 2006-02-16 | 2006-05-11 | Höcketstaller, Gerhard | Flange connections and/or shaft feedthrough sealing device for e.g. chemical industry, has secondary seal attached outside primary seal, and chamber created in flange or outside of flange, where leakage is collected in chamber |
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2014
- 2014-04-30 NO NO20140560A patent/NO337569B1/en unknown
-
2015
- 2015-04-23 GB GB1617910.3A patent/GB2542040B/en active Active
- 2015-04-23 WO PCT/NO2015/050072 patent/WO2015167343A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB952755A (en) * | 1959-10-28 | 1964-03-18 | Gray Tool Co | Improved coupling for fluid pressure duct |
| US4019371A (en) * | 1976-01-28 | 1977-04-26 | Exxon Production Research Company | Apparatus and method for externally testing conduit connections |
| WO2003027561A1 (en) * | 2001-09-26 | 2003-04-03 | Ann Helen Hystad | An arrangement for monitoring and/or testing of flange joints |
| DE202006002457U1 (en) * | 2006-02-16 | 2006-05-11 | Höcketstaller, Gerhard | Flange connections and/or shaft feedthrough sealing device for e.g. chemical industry, has secondary seal attached outside primary seal, and chamber created in flange or outside of flange, where leakage is collected in chamber |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2542040B (en) | 2020-07-22 |
| GB2542040A (en) | 2017-03-08 |
| GB201617910D0 (en) | 2016-12-07 |
| WO2015167343A1 (en) | 2015-11-05 |
| NO20140560A1 (en) | 2015-11-02 |
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