WO2015177259A1 - Fitting for coupling to a pipe - Google Patents
Fitting for coupling to a pipe Download PDFInfo
- Publication number
- WO2015177259A1 WO2015177259A1 PCT/EP2015/061204 EP2015061204W WO2015177259A1 WO 2015177259 A1 WO2015177259 A1 WO 2015177259A1 EP 2015061204 W EP2015061204 W EP 2015061204W WO 2015177259 A1 WO2015177259 A1 WO 2015177259A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pressure
- sleeve
- pipe
- fitting
- pressure member
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L21/00—Joints with sleeve or socket
- F16L21/08—Joints with sleeve or socket with additional locking means
-
- 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
- F16L21/04—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 in which sealing rings are compressed by axially-movable members
Definitions
- the invention relates to a fitting for coupling to at least one pipe.
- EP-A-0 794 378 discloses a fitting for coupling to at least one pipe, comprising:
- a pressure member for applying a pressure to the sleeve and to the pipe
- the sealing member is arranged between the pressure member and the pipe and be-0 tween the pressure member and the sleeve in order to provide the required seal between the sleeve and the pipe .
- a fitting according to the preamble of the main claim is further known from WO2011/120669.
- the actuation5 means of the fitting are arranged so as to have the pressure member apply a pressure capable to withstand for a stand time of not less than 50 years axial forces that may act on the pipe which is received in the sleeve ; to provide sufficient pressure both on the part of the sealing member positioned be-0 tween the pressure member and the pipe and on the part of the sealing member positioned between the pressure member and the sleeve ; and to compensate for relaxation of the material of the fitting that may occur during said, fifty-year stand time.
- the pressures that are thus applied to the sealing member, in5 particular on the part of the sealing member between the pressure member and the sleeve are at such a high level that the sealing member, usually rubber, is overstressed in particular when the pipe diameter is larger than 300 mm. It is particularly with diameters larger than 300 mm that the reguired pre- tension on the part of the sealing member between the pressure member and the sleeve becomes too high for the rubber of the sealing member to survive and maintain its long-term physical properties .
- the fitting has the features of one or more of the appended claims.
- the fitting of the invention first and foremost is arranged with the feature that the at least one sealing member is connected with or pressed against the sleeve without being positioned between the pressure member and the sleeve.
- This arranges for a completely closed seal between the sleeve and the pipe wherein the sealing property of the fitting of the invention is not linked to the pressure applied by the pressure member. Accordingly the level of the pressure applied by the pressure member has no bearing anymore on the lifetime of the sealing between the pressure member and the sleeve.
- opposite extremities of the at least one sealing member are connected to the pressure mem ⁇ ber and the sleeve respectively.
- the at least one sealing member is connected with or pressed against the sleeve without being positioned between the slanting surfaces of the pressure ring and the pressure member. This contributes to the longevity of the fitting of the invention.
- the fitting comprises a clip for attaching the sealing member to the sleeve. This makes mounting and dismounting of the fitting very easy without sacrificing reliability.
- the figure shows an embodiment of the fitting 1 of the invention for application with a pipe 2.
- the fitting has a sleeve 10 for receiving the pipe 2, at least one sealing mem- ber 4 to provide a seal between the sleeve 10 and the pipe 2, a pressure member 5 for applying a pressure to the sleeve 10 and to the pipe 2, gripper teeth 6 provided on the pressure member 5 and arranged to act on the pipe 2, and actuation means 3, 7 that are tuneable from a single point outside the sleeve 10 for arranging that a pressure is applied to the pressure member 5.
- the actuation means 3, 7 comprise a pressure ring 3 acting on the pressure member 5 through adjoining slanting contacting surfaces 11', 11'' of said pressure ring 3 and pressure member 5, respectively.
- This a a force applied to the pressure member 5 in parallel with a longitudi ⁇ nal body axis of the sleeve 10 or the pipe 2 acts on the pressure member 5 with a. component perpendicular to said longitudinal body axis of the sleeve 10 on the pipe 2 received in said sleeve 10.
- the sealing member 4 is in accordance with the invention positioned between the pressure member 5 and the pipe 2 and is connected with or pressed against the sleeve 10 with ⁇ out being positioned between the pressure member 5 and the sleeve 10.
- fitting 1 of the invention is that it is provided with said sealing member 4 without same being positioned between the slanting surface 11 ' of the pressure ring 3 and the slanting surface 11*' of the pressure member 5.
- opposite extremities of the at least one sealing member 4 are connected to the pressure member 5 and to the sleeve 10 respectively.
- the fitting 1 of the invention is preferably further provided with a. clip 13 for attaching the sealing member 4 to the sleeve 10. This makes mounting and dismounting of the fitting very easy without sac ⁇ rificing reliability .
Abstract
A fitting (1) for coupling to at least one pipe (2), comprising : a sleeve (10) for receiving the pipe (2); at least one sealing member (4) to provide a seal be- tween the sleeve (10) and the pipe (2); a pressure member (5) for applying a pressure to the sleeve (10) and to the pipe (2); gripper teeth (6) provided on the pressure member (5) and arranged to act on the pipe (2); and actuation means (3, 7) for exerting a pressure to the pressure member (5) comprising a pressure ring (3) acting on the pressure member (5) through adjoining slanting contacting surfaces (11% 11'') of said pressure ring (3) and pressure member (5), respectively; wherein the at least one sealing member (4) is positioned between the pressure member (5) and the pipe (2); wherein the at least one sealing member (4) is connected with or pressed against the sleeve (10) without being positioned between the pressure member (5) and the sleeve (10).
Description
Fitting for coupling to a pipe
The invention relates to a fitting for coupling to at least one pipe.
5 EP-A-0 794 378 discloses a fitting for coupling to at least one pipe, comprising:
- a. sleeve for receiving the pipe;
- at least one sealing member to provide a seal between the sleeve and the pipe ;
0 - a pressure member for applying a pressure to the sleeve and to the pipe;
- gripper teeth provided on the pressure member and arranged to act on the pipe; and
- actuation means for exerting a pressure to the
-5- -p-r-e-s-s-u-re menibex comprising a pressure ring acting' on the pressure member through adjoining slanting contacting surfaces of said pressure ring and pressure member respectively .
In the fitting of EP-A-Q 794 378 the sealing member is arranged between the pressure member and the pipe and be-0 tween the pressure member and the sleeve in order to provide the required seal between the sleeve and the pipe .
A fitting according to the preamble of the main claim is further known from WO2011/120669.
During installation of the fitting the actuation5 means of the fitting are arranged so as to have the pressure member apply a pressure capable to withstand for a stand time of not less than 50 years axial forces that may act on the pipe which is received in the sleeve ; to provide sufficient pressure both on the part of the sealing member positioned be-0 tween the pressure member and the pipe and on the part of the sealing member positioned between the pressure member and the sleeve ; and to compensate for relaxation of the material of the fitting that may occur during said, fifty-year stand time. The pressures that are thus applied to the sealing member, in5 particular on the part of the sealing member between the pressure member and the sleeve are at such a high level that the sealing member, usually rubber, is overstressed in particular when the pipe diameter is larger than 300 mm. It is particularly with diameters larger than 300 mm that the reguired pre-
tension on the part of the sealing member between the pressure member and the sleeve becomes too high for the rubber of the sealing member to survive and maintain its long-term physical properties .
It is therefore an object of the invention to provide a solution to this problem, and to provide a fitting having a lifetime of at least 50 years, and which can withstand axial forces that may come to work on the pipe during this lifetime whilst maintaining its sealing properties, and which can cope with the general deterioration of the fitting during its lifetime, also when the fitting is dimensioned for pipes having a diameter larger than 300 mm.
According to the invention the fitting has the features of one or more of the appended claims.
The fitting of the invention first and foremost is arranged with the feature that the at least one sealing member is connected with or pressed against the sleeve without being positioned between the pressure member and the sleeve. This arranges for a completely closed seal between the sleeve and the pipe wherein the sealing property of the fitting of the invention is not linked to the pressure applied by the pressure member. Accordingly the level of the pressure applied by the pressure member has no bearing anymore on the lifetime of the sealing between the pressure member and the sleeve.
In a suitable embodiment opposite extremities of the at least one sealing member are connected to the pressure mem¬ ber and the sleeve respectively.
In a further suitable embodiment the at least one sealing member is connected with or pressed against the sleeve without being positioned between the slanting surfaces of the pressure ring and the pressure member. This contributes to the longevity of the fitting of the invention.
In a particular embodiment it is desirable that the fitting comprises a clip for attaching the sealing member to the sleeve. This makes mounting and dismounting of the fitting very easy without sacrificing reliability.
The invention will hereinafter be further elucidated with reference to the drawing.
In the drawing of a single figure a preferred embod-
iment is shown of the fitting of the invention.
The figure shows an embodiment of the fitting 1 of the invention for application with a pipe 2. The fitting has a sleeve 10 for receiving the pipe 2, at least one sealing mem- ber 4 to provide a seal between the sleeve 10 and the pipe 2, a pressure member 5 for applying a pressure to the sleeve 10 and to the pipe 2, gripper teeth 6 provided on the pressure member 5 and arranged to act on the pipe 2, and actuation means 3, 7 that are tuneable from a single point outside the sleeve 10 for arranging that a pressure is applied to the pressure member 5.
The actuation means 3, 7 comprise a pressure ring 3 acting on the pressure member 5 through adjoining slanting contacting surfaces 11', 11'' of said pressure ring 3 and pressure member 5, respectively. This a a force applied to the pressure member 5 in parallel with a longitudi¬ nal body axis of the sleeve 10 or the pipe 2, acts on the pressure member 5 with a. component perpendicular to said longitudinal body axis of the sleeve 10 on the pipe 2 received in said sleeve 10.
The sealing member 4 is in accordance with the invention positioned between the pressure member 5 and the pipe 2 and is connected with or pressed against the sleeve 10 with¬ out being positioned between the pressure member 5 and the sleeve 10.
One of the further characterizing features of the fitting 1 of the invention is that it is provided with said sealing member 4 without same being positioned between the slanting surface 11 ' of the pressure ring 3 and the slanting surface 11*' of the pressure member 5.
Furthermore it is preferable that opposite extremities of the at least one sealing member 4 are connected to the pressure member 5 and to the sleeve 10 respectively.
The figure further shows that the fitting 1 of the invention is preferably further provided with a. clip 13 for attaching the sealing member 4 to the sleeve 10. This makes mounting and dismounting of the fitting very easy without sac¬ rificing reliability .
Although the invention has been discussed in the
foregoing with reference to a variety of embodiments of the fitting of the invention, the invention is not restricted to these particular embodiments which can be varied further in many ways without departing from the invention. The discussed exemplary embodiments shall therefore not be used to construe the appended claims strictly in accordance therewith. On the contrary the embodiments are merely intended to explain the wording of the appended claims without intent to limit the claims to the discussed exemplary embodiments. The scope of protection of the invention shall therefore be construed in accordance with the appended claims only, wherein a possible ambiguity in the wording of the claims shall be resolved using these exemplary embodiments.
Claims
1. A fitting (1) for coupling to at least one pipe ( 2 ) , comprising :
- a sleeve (10) for receiving the pipe (2);
- at least one sealing member (4) to provide a seal be- tween the sleeve (10) and the pipe (2);
- a pressure member (5) for applying a pressure to the sleeve (10) and to the pipe (2);
- gripper teeth (6) provided on the pressure member (5) and arranged to act on the pipe (2) ; and
- actuation means (3, 7) for exerting a pressure to the pressure member (5) comprising a pressure ring (3) acting on the pressure member (5) through adjoining slanting contacting surfaces {11*, 11'') of said pressure ring (3) and pressure member (5), respectively;
- wherein the at least one sealing member (4) is positioned between the pressure member (5) and the pipe (2); characterized in that
the at least one sealing member (4) is connected with or
pressed against the sleeve ( 10 ) without being positioned be- tween the pressure member (5) and the sleeve (10) .
2. The fitting according to claim 1, characterized in th t opposite extremities of the at least one sealing member (4) are connected to the pressure member (5) and the sleeve ( 10 ) respectively.
3. The fitting (1) according to claim 1 or 2, characterized in that the at least one sealing member (4) is connected with or pressed against the sleeve ( 10 ) without being positioned between the slanting surfaces (11', 11' ' ) of the pressure ring (3) and the pressure member (5) .
4. The fitting according to any one of the previous claims 1 - 3, characteriz it comprises a clip ( 13 ) for attaching the sealing member (4) to the sleeve ( 10 ) .
Priority Applications (15)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP15723531.8A EP3146249B1 (en) | 2014-05-22 | 2015-05-21 | Fitting for coupling to a pipe |
| SI201530396T SI3146249T1 (en) | 2014-05-22 | 2015-05-21 | Fitting for coupling to a pipe |
| SG11201608279XA SG11201608279XA (en) | 2014-05-22 | 2015-05-21 | Fitting for coupling to a pipe |
| RU2016144054A RU2664722C2 (en) | 2014-05-22 | 2015-05-21 | Mount assembly for connection with tube |
| US15/311,451 US10655765B2 (en) | 2014-05-22 | 2015-05-21 | Fitting for coupling to a pipe |
| PL15723531T PL3146249T3 (en) | 2014-05-22 | 2015-05-21 | Fitting for coupling to a pipe |
| CA2944828A CA2944828C (en) | 2014-05-22 | 2015-05-21 | Fitting for coupling to a pipe |
| NZ726910A NZ726910A (en) | 2014-05-22 | 2015-05-21 | Fitting for coupling to a pipe |
| AU2015261882A AU2015261882B2 (en) | 2014-05-22 | 2015-05-21 | Fitting for coupling to a pipe |
| RS20180960A RS57544B1 (en) | 2014-05-22 | 2015-05-21 | Fitting for coupling to a pipe |
| ES15723531.8T ES2689572T3 (en) | 2014-05-22 | 2015-05-21 | Accessory to attach to a pipe |
| BR112016026232-8A BR112016026232B1 (en) | 2014-05-22 | 2015-05-21 | accessory (adapter) to attach to a tube |
| JP2017513337A JP6588088B2 (en) | 2014-05-22 | 2015-05-21 | Fittings for connecting to pipes |
| DK15723531.8T DK3146249T3 (en) | 2014-05-22 | 2015-05-21 | CONNECTOR TO CONNECT WITH A PIPE |
| HRP20181356TT HRP20181356T1 (en) | 2014-05-22 | 2018-08-24 | Fitting for coupling to a pipe |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL2012869 | 2014-05-22 | ||
| NL2012869A NL2012869B1 (en) | 2014-05-22 | 2014-05-22 | Fitting for coupling to a pipe. |
| NL2013241A NL2013241B1 (en) | 2014-05-22 | 2014-07-23 | Fitting for coupling to a pipe. |
| NL2013241 | 2014-07-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2015177259A1 true WO2015177259A1 (en) | 2015-11-26 |
Family
ID=53189837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2015/061204 WO2015177259A1 (en) | 2014-05-22 | 2015-05-21 | Fitting for coupling to a pipe |
Country Status (2)
| Country | Link |
|---|---|
| CA (1) | CA2944828C (en) |
| WO (1) | WO2015177259A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL2019920B1 (en) * | 2017-11-16 | 2019-05-22 | Fischer Georg Waga Nv | Coupling device |
| AT524049B1 (en) * | 2020-12-15 | 2022-02-15 | E Hawle Armaturenwerke Gmbh | PIPE CONNECTION DEVICE WITH A SEAL CARRIER |
| AT524050B1 (en) * | 2020-12-15 | 2022-02-15 | E Hawle Armaturenwerke Gmbh | Pipe connection device with a locking wedge and a braking element |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11215306B2 (en) | 2017-04-19 | 2022-01-04 | Mueller International, Llc | Joint restraint device |
| US11199280B2 (en) | 2017-04-19 | 2021-12-14 | Mueller Intemational, LLC | Joint restraint device |
| US11131412B2 (en) | 2017-04-19 | 2021-09-28 | Mueller International, Llc | Joint restraint device |
| US10677381B2 (en) | 2017-04-19 | 2020-06-09 | Mueller International, Llc | Joint restraint device |
| US11193609B2 (en) | 2018-02-28 | 2021-12-07 | Mueller International, Llc | Pipe coupling |
| US11473705B2 (en) | 2018-08-22 | 2022-10-18 | Mueller International, Llc | Joint restraint device |
| US10774508B2 (en) | 2018-09-04 | 2020-09-15 | Mueller International, Llc | Hydrant shoe assembly |
| US11162621B2 (en) | 2019-02-04 | 2021-11-02 | Mueller International, Llc | Gland assembly |
| US11396965B2 (en) | 2019-07-19 | 2022-07-26 | Mueller International, Llc | Restraint gripper cover with lockout breakaway |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0794378A2 (en) | 1996-03-04 | 1997-09-10 | Georg Fischer WAGA N.V. | A coupling device |
| WO2003010461A1 (en) * | 2001-07-25 | 2003-02-06 | Philmac Pty Ltd | Coupling or transition fitting for the connection of metal or plastic pipes |
| GB2415472A (en) * | 2004-06-23 | 2005-12-28 | Gloway Internat Inc | A pipe coupling including hydraulically actuated pipe grippingmembers |
| EP1906073A1 (en) * | 2006-09-26 | 2008-04-02 | Ludwig Frischhut GmbH & Co. KG | Sealing organ for a tube |
| WO2011120669A1 (en) | 2010-04-01 | 2011-10-06 | E. Hawle Armaturenwerke Gmbh | Pipe connecting device |
-
2015
- 2015-05-21 WO PCT/EP2015/061204 patent/WO2015177259A1/en active Application Filing
- 2015-05-21 CA CA2944828A patent/CA2944828C/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0794378A2 (en) | 1996-03-04 | 1997-09-10 | Georg Fischer WAGA N.V. | A coupling device |
| WO2003010461A1 (en) * | 2001-07-25 | 2003-02-06 | Philmac Pty Ltd | Coupling or transition fitting for the connection of metal or plastic pipes |
| GB2415472A (en) * | 2004-06-23 | 2005-12-28 | Gloway Internat Inc | A pipe coupling including hydraulically actuated pipe grippingmembers |
| EP1906073A1 (en) * | 2006-09-26 | 2008-04-02 | Ludwig Frischhut GmbH & Co. KG | Sealing organ for a tube |
| WO2011120669A1 (en) | 2010-04-01 | 2011-10-06 | E. Hawle Armaturenwerke Gmbh | Pipe connecting device |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL2019920B1 (en) * | 2017-11-16 | 2019-05-22 | Fischer Georg Waga Nv | Coupling device |
| EP3486542A3 (en) * | 2017-11-16 | 2019-08-07 | Georg Fischer WAGA N.V. | Coupling device |
| EP3892905A1 (en) | 2017-11-16 | 2021-10-13 | Georg Fischer WAGA N.V. | Coupling device |
| AT524049B1 (en) * | 2020-12-15 | 2022-02-15 | E Hawle Armaturenwerke Gmbh | PIPE CONNECTION DEVICE WITH A SEAL CARRIER |
| AT524049A4 (en) * | 2020-12-15 | 2022-02-15 | E Hawle Armaturenwerke Gmbh | PIPE CONNECTION DEVICE WITH A SEAL CARRIER |
| AT524050B1 (en) * | 2020-12-15 | 2022-02-15 | E Hawle Armaturenwerke Gmbh | Pipe connection device with a locking wedge and a braking element |
| AT524050A4 (en) * | 2020-12-15 | 2022-02-15 | E Hawle Armaturenwerke Gmbh | Pipe connection device with a locking wedge and a braking element |
| WO2022128906A1 (en) * | 2020-12-15 | 2022-06-23 | E. Hawle Armaturenwerke Gmbh | Pipe connection device with a seal support |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2944828C (en) | 2020-10-27 |
| CA2944828A1 (en) | 2015-11-26 |
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