DE19603228A1 - Press connection device for joining to tube - Google Patents

Press connection device for joining to tube

Info

Publication number
DE19603228A1
DE19603228A1 DE1996103228 DE19603228A DE19603228A1 DE 19603228 A1 DE19603228 A1 DE 19603228A1 DE 1996103228 DE1996103228 DE 1996103228 DE 19603228 A DE19603228 A DE 19603228A DE 19603228 A1 DE19603228 A1 DE 19603228A1
Authority
DE
Germany
Prior art keywords
characterized
device
piece
device according
preceding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE1996103228
Other languages
German (de)
Inventor
Willi Hendrickx
Eddy Hendrickx
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Henco Industries NV
Original Assignee
Henco Industries NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Henco Industries NV filed Critical Henco Industries NV
Priority to DE1996103228 priority Critical patent/DE19603228A1/en
Publication of DE19603228A1 publication Critical patent/DE19603228A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L13/00Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
    • F16L13/14Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling
    • F16L13/141Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling by crimping or rolling from the outside
    • F16L13/143Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling by crimping or rolling from the outside with a sealing element placed around the male part before crimping or rolling
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L33/00Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
    • F16L33/20Undivided rings, sleeves or like members contracted on the hose or expanded in the hose by means of tools; Arrangements using such members
    • F16L33/207Undivided rings, sleeves or like members contracted on the hose or expanded in the hose by means of tools; Arrangements using such members only a sleeve being contracted on the hose
    • F16L33/2071Undivided rings, sleeves or like members contracted on the hose or expanded in the hose by means of tools; Arrangements using such members only a sleeve being contracted on the hose the sleeve being a separate connecting member
    • F16L33/2073Undivided rings, sleeves or like members contracted on the hose or expanded in the hose by means of tools; Arrangements using such members only a sleeve being contracted on the hose the sleeve being a separate connecting member directly connected to the rigid member

Abstract

The press connection device is to connect at least one tube for pressurised fluid. It has a base body with a centre piece which can be connected to the tube. The centre piece has at least one internal tube carrier (2a-2c) fixed to it. There is a pressing shell (7) on the centre piece, fitting round the internal tube carrier with clearance, which can be fixed to the centre piece. It may be possible to push the press shell onto an annular sector of the centre piece.

Description

The invention relates to a device and a method for assembling the Device for connecting to at least one tube through which one pressurized liquid is conductive, the device a Has base body with a center piece that can be connected to the tube is.

Such a device is known from EP-A 0 503 125. Here this device relates to a press connection for guiding a liquid under pressure. To connect a pipe with the end of the pipe with two fittings Provide flares. Then the valve body over the thus pushed tube and then a pipe encompassing the tube Sleeve area pressed together. Here are in the sleeve area Recessed ring grooves that interact with the flares. This press connection is complex to process, since starting from a ready prepared valve body in a first step the pipe must be provided with the flanges and only then actual press connection can be made. In addition, there is Risk of the pipe not being inserted correctly into the valve body and folds away during the pressing process. This allows Leakage points arise, which in certain circumstances only in time Appearance.

The invention has for its object a press connection To provide, which can be assembled on site with little effort and where a secure and permanent connection with the to connecting pipe is ensured.

This object is achieved in that the Center piece of the base body attached at least one inner tube support or is molded and that the inner tube support at a distance comprehensive press sleeve is attachable to the center piece. According to the The pipe to be connected is then claimed on the inside Slide the tube carrier until it is at the middle of the Base body rests. Then the compression sleeve is then on the Pressed pipe. Through this device and this method is First of all, no preparation of the pipe to be connected necessary as this is simply cut to the appropriate size and is easily pushed onto the inner tube support. In which Pressing is a buckling of the tube due to this training not possible inside, so that a safe and permanent Press connection is guaranteed.

In a development of the invention, the compression sleeve is on a rotating Ring heel of the middle piece can be pushed on. Thus, the main body and the compression sleeve in a simple manner as separate components are manufactured, for example, on site or at Manufacturing can be simply put together. It is also there easily possible, possibly different materials for the Basic body and the press sleeve to use.

In a development of the invention is in the ferrule on the Ring heel, push-on end recessed at least one cutout, which is a greater depth than the area to be pushed onto the heel the sleeve has. This results in on the base body mounted compression sleeve an opening through which the approach of the inner Pipe support can be seen. This is to assemble the tube from Advantage, as it can be checked without any doubt whether the pipe have been pushed onto the inner tube support correctly and far enough  is. As long as the pipe is not visible through the opening, it is not yet pushed far enough onto the pipe support.

In a further development of the invention, three sections on the scope of the distributed on the ring heel pushable end. This Training or arrangement ensures that at all possible Installation situations can be easily checked whether the pipe is pushed onto the inner tube support correctly and far enough. Of course, it is also possible to have two or more than three provide appropriate cutouts at the end of the compression sleeve. in the the rest of these cutouts ensure a given flexibility of the end region of the press sleeve. This compliance is for Sliding the compression sleeve onto the circumferential ring shoulder is an advantage, since in the context of the invention the ring heel is slightly larger Has diameter than the inner diameter of the compression sleeve. Consequently can, for example, by simply opening the compression sleeve on the Ring heel these can be attached securely and easily.

In a development of the invention, the press sleeve has a molded, outward-facing ring flanging in the area of the ring shoulder pushable end. This ring flanging acts according to the Process claim with a circumferential recess in the Press device together. This is a correct position of the Basic body with the press sleeve and the pushed tube in Relation to the pressing device ensured. This is further ensures that with the press device, at precisely predetermined Place the pressure on the compression sleeve, the pipe and the pipe support is exercised. Furthermore, the ring flange helps to stiffen the Press sleeve, possibly in the formed by the ring flange inner recess a corresponding sealing device or Sealant can be inserted.

In a development of the invention is / are in the inner tube support at least one, preferably two first annular groove (s) incorporated into the One O-ring can be used. This training ensures a secure sealing of the pipe against the base body or the inner tube support. This is also the case with smaller ones  Damage to the inner surface of the pipe (grooves or the like) secure sealing against the base body ensured.

In a development of the invention is / are in the inner tube support at least one further, preferably three further second annular groove (s) incorporated in the area next to the first ring groove (s) is / are arranged. This results in the according to the preferred Embodiment given arrangement the following constellation. Starting from the end of the inner facing the center piece Tube carrier is first a second ring groove, then a first ring groove an O-ring, then another ring groove, then again a first ring groove with an O-ring and finally one second ring groove worked into the inner tube support. It is then in a further embodiment of the invention, the pressing device designed that this is fixed by the ring flange exactly in the area the second ring grooves is provided with circumferential ring lugs that the Deform the compression sleeve inwards. The press sleeve can then be used the subsequent pipe slightly into the second ring grooves penetration. This ensures a positive connection does not diverge even under the toughest conditions.

In a further development of the invention, inner parts are on both sides of the center piece Pipe support molded. This device is then used for Connecting two pipes.

In a further development of the invention, the center piece is a triangular piece formed on the three inner tube supports are formed. It can the branching leg also a different diameter than that have two other legs. Of course it is in the frame the invention also possible and provided four or more pipe supports to form an appropriately designed middle piece. Corresponding serves such a device for connecting several Pipes.

In a further development of the invention, the center piece is a Threaded connector or a flange connector or other Molded connector. So here are within the scope of the invention  all necessary for the respective application and provided connectors to a corresponding center piece molded.

In a development of the invention, the device is made of a metal, especially made of stainless steel or brass. These two metals are corrosion resistant and are particularly suitable for the use of Device in the sanitary area. Here is the corresponding device with the pipe sections especially for underfloor heating, heating with conventional radiators, cold and hot water supplies or similar can be used.

The associated press device consists of a total of three press jaws constructed and in the manner described above with a revolving Recess and three ring lugs in the respective press jaws Mistake. In this press device that is on the inner tube support of the base body pushed on tube together with the press sleeve used and then mechanically, hydraulically or electrically the necessary Press pressure applied to the three press jaws. Here is the Press device designed so that all the variants described above the device, for example, with a threaded connector or three Pipe supports can be used in this pressing device.

Finally, it should be noted that the device according to the invention for a wide variety of pipe diameters that also work with each other can be combined, can be applied by appropriate Devices for such standard pipe diameters are available be put.

Further advantageous embodiments of the invention are the The description of the drawing can be seen in the figure shown in the figures Embodiments of the invention are described in more detail.

Show it:

Fig. 1 shows a section through a device for connecting two pipes,

Fig. 2 is a sectional view of a disassembled device with a tube support and a terminal,

Fig. 3 shows a section through a device by qualified as a triangular piece center piece,

Fig. 4 is a partial view of a center piece and an assembled press sleeve and

Fig. 5 shows a section through a disassembled device with a tube support and a corner connection.

The apparatus of Fig. 1 is shown in the lower part in section and in the upper part in elevation. The right part is also assembled, while the left part is unmounted. The device has a base body with a center piece 1 , to which a left inner tube support 2 a is molded and a right inner tube support 2 b is fastened by a thermal connection method (soldering, welding). The inner tube supports 2 a, 2 b have two first annular grooves 3 a, 3 b, in each of which an O-ring 4 is inserted. Furthermore, three second annular grooves 5 a, 5 b, 5 c are incorporated into the inner tube supports 2 a, 2 b. These second annular grooves 5 a, 5 b, 5 c ensure, as shown in FIG. 4 in the lower area, a positive connection of the device with the inserted and pressed pipe 10 .

The center piece 1 also has two circumferential ring shoulders 6 , onto each of which a press sleeve 7 can be pushed. The press sleeve 7 has a circumferential ring flange 8 , which is used for correct insertion in a press device. If necessary, further ring grooves can be worked into the tube support 2 a, 2 b. In addition, bevels can be attached in the end region of the ring carrier for an easier pushing on of the tube 10 and for a streamlined flow of the liquid.

In the exemplary embodiment according to FIG. 2, a ring piece 1 c is shown, to which only one tube support 2 b is attached. The center piece 1 c is formed on the left side as a connector which can be attached to corresponding connector parts by means of a nut 12 to be pushed open.

In the exemplary embodiment according to FIG. 3, the center piece 1 b is designed as a triangular piece, to which three inner tube supports 2 a, 2 b, 2 c are formed. The further structure corresponds to the exemplary embodiment according to FIG. 1.

Fig. 4 shows a partial section of a device with inserted tube 10 , wherein a finished pressed device is shown in the lower region of the tube support 2 b. Here, the press sleeve 7 has a total of three indentations 9 a, 9 b, 9 c, which are formed by the pressing device. These three indentations 9 a, 9 b, 9 c press the tube 10 to a small extent into the second annular grooves 5 a, 5 b, 5 c, whereby a permanent positive connection between the components is achieved. As can also be seen in the other figures, a total of three end-side cutouts 11 are worked into the press sleeve, which have a greater depth than the area of the press sleeve 7 to be pushed onto the ring shoulder 6 . Accordingly, a portion of the inserted tube 10 can be seen through the cutout. This can therefore be checked for correct seating through the opening created in this way.

In the embodiment of FIG. 5, a ring piece 1 d is shown, to which only a tube support 2 b is attached. The center piece 1 c is formed on the left side as a corner connection with an internal thread, a component being screwable into the corner connection. The further structure corresponds to the previous figures.

Claims (15)

1. A device for connecting to at least one pipe through which a pressurized liquid can be conducted, the device having a base body with a central piece that can be connected to the pipe, characterized in that on the central piece ( 1 , 1 a, 1 b, 1 d) of the base body, at least one inner tube support ( 2 a, 2 b, 2 c) is fastened and that an inner tube support ( 2 a, 2 b, 2 c) with a spacing press sleeve ( 7 ) on the center piece ( 1 , 1 a, 1 b, 1 d) can be attached.
2. Device according to claim 1, characterized in that the press sleeve ( 7 ) on a circumferential ring shoulder ( 6 ) of the central piece ( 1 , 1 a, 1 b, 1 d) can be pushed.
3. Apparatus according to claim 1 or 2, characterized in that at least one cutout ( 11 ) is inserted in the press sleeve ( 7 ) at the end which can be pushed onto the ring shoulder ( 6 ) and which has a greater depth than that on the ring shoulder ( 6 ) has to be pushed on area of the press sleeve ( 7 ).
4. Device according to one of the preceding claims, characterized in that three cutouts ( 11 ) are arranged distributed over the circumference of the end which can be pushed onto the ring shoulder ( 6 ).
5. Device according to one of the preceding claims, characterized in that the pressing sleeve ( 7 ) has a molded-in, outwardly facing ring flange ( 8 ) in the region of the end which can be pushed onto the ring shoulder ( 6 ).
6. Device according to one of the preceding claims, characterized in that in the inner tube support ( 2 a, 2 b, 2 c) at least one, preferably two first annular groove (s) ( 3 a, 3 b) is / are incorporated in which can be used with an O-ring ( 4 ).
7. Device according to one of the preceding claims, characterized in that in the inner tube support ( 2 a, 2 b, 2 c) at least one further, preferably three further second annular groove (s) ( 5 a, 5 b, 5 c) incorporated is / are arranged in the area next to / between the first annular groove (s) ( 3 a, 3 b).
8. Device according to one of the preceding claims, characterized in that the pressing sleeve ( 7 ) in the region of the second annular groove (s) ( 5 a, 5 b, Sc) can be pressed.
9. Device according to one of the preceding claims, characterized in that on the center piece ( 1 , 1 a, 1 b, 1 d) inner tube supports ( 2 a, 2 b, 2 c) are formed on both sides.
10. Device according to one of the preceding claims, characterized in that the central piece ( 1 , 1 a, 1 b, 1 d) is designed as a triangular piece, on which three inner tube supports ( 2 a, 2 b, 2 c) are integrally formed.
11. Device according to one of the preceding claims, characterized in that a threaded connection piece, a corner connection, a flange connection piece or another connection piece is integrally formed on the central piece ( 1 , 1 a, 1 b).
12. Device according to one of the preceding claims,  characterized in that the device is made of a metal, is made in particular of stainless steel or brass.
13. A method for preassembling the device, characterized in that in the first (n) annular groove (s) ( 3 a, 3 b) of the inner tube support ( 2 a, 2 b, 2 c) O-rings ( 4 ) are used and that then the press sleeve ( 7 ) is pushed onto the ring shoulder ( 6 ) of the center piece ( 1 , 1 a, 1 b, 1 d) with an end having at least one cutout ( 11 ).
14. A method for assembling a tube with the device, characterized in that the tube ( 10 ) on the inner tube support ( 1 , 1 a, 1 b, 1 d) of the pre-assembled device is pushed until the tube ( 10 ) the middle piece ( 1 , 1 a, 1 b, 1 d) and! or through the cutouts ( 11 ) is visible.
15. A method for pressing the device, characterized in that the middle piece ( 1 , 1 a, 1 b, 1 d) with the press sleeve ( 7 ) and the inserted tube ( 10 ) is used in a pressing device, the ring flanging ( 8 ) enables a correct position in cooperation with a circumferential recess in the pressing device and then the press sleeve ( 7 ) in the region of the second annular grooves ( 5 a, 5 b, 5 c) is pressed all around onto the tube ( 19 ).
DE1996103228 1996-01-30 1996-01-30 Press connection device for joining to tube Withdrawn DE19603228A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1996103228 DE19603228A1 (en) 1996-01-30 1996-01-30 Press connection device for joining to tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1996103228 DE19603228A1 (en) 1996-01-30 1996-01-30 Press connection device for joining to tube

Publications (1)

Publication Number Publication Date
DE19603228A1 true DE19603228A1 (en) 1997-07-31

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE1996103228 Withdrawn DE19603228A1 (en) 1996-01-30 1996-01-30 Press connection device for joining to tube

Country Status (1)

Country Link
DE (1) DE19603228A1 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19741641A1 (en) * 1997-09-22 1999-03-25 Wavin Bv Pipe or hose connection with socket and pressing sleeve
DE19748623A1 (en) * 1997-11-04 1999-05-06 Henco Ind Nv Press connection
FR2780134A1 (en) * 1998-06-23 1999-12-24 Trelleborg Ind Connector for positioning on the end of a pipe
WO2001086188A1 (en) * 2000-05-05 2001-11-15 Uponor Innovation Ab Fitting for connecting a composite pipe made of plastic and/or of a plastic/metal
EP1241390A1 (en) * 2001-03-15 2002-09-18 gabo Systemtechnik GmbH Pipe connection with fitting
DE10233559B3 (en) * 2002-07-24 2004-01-08 Uponor Ab Press fitting for a pipe
DE102005028558B3 (en) * 2005-06-21 2007-01-04 Uponor Innovation Ab Press fitting for a pipe has fitting and supporting bodies for a connecting pipe to be pushed onto it and a press-on sleeve with a holding end for holding the press-on sleeve on the fitting body
EP1933073A1 (en) 2006-12-12 2008-06-18 Uponor Innovation Ab Pressfitting for a pipe
DE102007008759B3 (en) * 2007-02-22 2008-06-19 Uponor Innovation Ab Press-fitting for a plastic/plastic-cum-metal composite pipe has a fitting body with a support sleeve, a pressing sleeve and retaining elements
US9803786B2 (en) 2007-07-31 2017-10-31 Uponor Innovation Ab Press fitting for a pipe, in particular plastic pipe or plastic and metal composite pipe

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7238547U (en) * Kessler & Co Techno Chemie Gmbh
US4407532A (en) * 1981-01-26 1983-10-04 Dana Corporation Hose end fitting
WO1990000697A1 (en) * 1988-07-13 1990-01-25 Mie Horo Co., Ltd. Coupling means and method for pipe material
DE9110998U1 (en) * 1991-09-05 1991-10-31 Hewing Gmbh
DE4136848A1 (en) * 1990-11-13 1992-05-14 Dana Corp Coupling for pressure hoses
WO1992009840A1 (en) * 1990-11-30 1992-06-11 Hewing Gmbh Tube joint, in particular for composite tubes
EP0503125A1 (en) * 1991-03-08 1992-09-16 COHNEN BETEILIGUNGS-GMBH & CO. KG Press-connection
DE4204430A1 (en) * 1992-02-14 1993-08-19 Unit Verwaltungsgesellschaft M Adaptable connection device for pipes
DE9116948U1 (en) * 1991-09-05 1994-10-13 Hewing Gmbh Pipe connection
DE4325349A1 (en) * 1993-07-28 1995-02-02 Kirchner Fraenk Rohr Connecting device
DE29515269U1 (en) * 1995-09-23 1995-11-30 Liedelt D F Velta Prod Connection system for outside and inside with plastic-coated sanitary pipes

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7238547U (en) * Kessler & Co Techno Chemie Gmbh
US4407532A (en) * 1981-01-26 1983-10-04 Dana Corporation Hose end fitting
WO1990000697A1 (en) * 1988-07-13 1990-01-25 Mie Horo Co., Ltd. Coupling means and method for pipe material
DE4136848A1 (en) * 1990-11-13 1992-05-14 Dana Corp Coupling for pressure hoses
WO1992009840A1 (en) * 1990-11-30 1992-06-11 Hewing Gmbh Tube joint, in particular for composite tubes
EP0503125A1 (en) * 1991-03-08 1992-09-16 COHNEN BETEILIGUNGS-GMBH & CO. KG Press-connection
DE9110998U1 (en) * 1991-09-05 1991-10-31 Hewing Gmbh
DE9116948U1 (en) * 1991-09-05 1994-10-13 Hewing Gmbh Pipe connection
DE4204430A1 (en) * 1992-02-14 1993-08-19 Unit Verwaltungsgesellschaft M Adaptable connection device for pipes
DE4325349A1 (en) * 1993-07-28 1995-02-02 Kirchner Fraenk Rohr Connecting device
DE29515269U1 (en) * 1995-09-23 1995-11-30 Liedelt D F Velta Prod Connection system for outside and inside with plastic-coated sanitary pipes

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JP 2-256992 A.,In: Patents Abstracts of Japan, M-1066,Jan. 8,1991,Vol.15,No. 6 *

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1015804B1 (en) * 1997-09-22 2003-05-21 Wavin B.V. Coupler for a pipe or hose section
DE19741641A1 (en) * 1997-09-22 1999-03-25 Wavin Bv Pipe or hose connection with socket and pressing sleeve
DE19741641C2 (en) * 1997-09-22 2000-11-23 Wavin Bv Connection device for a pipe or hose part
DE19748623B4 (en) * 1997-11-04 2009-06-04 Henco Industries Nv compression joint
DE19748623A1 (en) * 1997-11-04 1999-05-06 Henco Ind Nv Press connection
EP0967428A1 (en) * 1998-06-23 1999-12-29 Trelleborg Industrie Connector to be located on the end of a hose
FR2780134A1 (en) * 1998-06-23 1999-12-24 Trelleborg Ind Connector for positioning on the end of a pipe
WO2001086188A1 (en) * 2000-05-05 2001-11-15 Uponor Innovation Ab Fitting for connecting a composite pipe made of plastic and/or of a plastic/metal
EP1241390A1 (en) * 2001-03-15 2002-09-18 gabo Systemtechnik GmbH Pipe connection with fitting
DE10233559B8 (en) * 2002-07-24 2004-07-08 Uponor Innovation Ab Press fitting for a pipe
DE10233559B3 (en) * 2002-07-24 2004-01-08 Uponor Ab Press fitting for a pipe
DE102005028558B3 (en) * 2005-06-21 2007-01-04 Uponor Innovation Ab Press fitting for a pipe has fitting and supporting bodies for a connecting pipe to be pushed onto it and a press-on sleeve with a holding end for holding the press-on sleeve on the fitting body
US8141913B2 (en) 2005-06-21 2012-03-27 Uponor Innovation Ab Press fitting for a pipe
EP1933073A1 (en) 2006-12-12 2008-06-18 Uponor Innovation Ab Pressfitting for a pipe
DE102007008759B3 (en) * 2007-02-22 2008-06-19 Uponor Innovation Ab Press-fitting for a plastic/plastic-cum-metal composite pipe has a fitting body with a support sleeve, a pressing sleeve and retaining elements
US9803786B2 (en) 2007-07-31 2017-10-31 Uponor Innovation Ab Press fitting for a pipe, in particular plastic pipe or plastic and metal composite pipe

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