WO2013168143A1 - Heating radiator element and method for closing an end part op a heating radiator element - Google Patents

Heating radiator element and method for closing an end part op a heating radiator element Download PDF

Info

Publication number
WO2013168143A1
WO2013168143A1 PCT/IB2013/053812 IB2013053812W WO2013168143A1 WO 2013168143 A1 WO2013168143 A1 WO 2013168143A1 IB 2013053812 W IB2013053812 W IB 2013053812W WO 2013168143 A1 WO2013168143 A1 WO 2013168143A1
Authority
WO
WIPO (PCT)
Prior art keywords
plug
seat
radiator element
shoulder
end part
Prior art date
Application number
PCT/IB2013/053812
Other languages
French (fr)
Other versions
WO2013168143A8 (en
Inventor
Orlando NIBOLI
Fabio Sassi
Maurizio BOLOGNA
Original Assignee
Fondital S.P.A.
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 Fondital S.P.A. filed Critical Fondital S.P.A.
Publication of WO2013168143A1 publication Critical patent/WO2013168143A1/en
Publication of WO2013168143A8 publication Critical patent/WO2013168143A8/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0202—Header boxes having their inner space divided by partitions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0035—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for domestic or space heating, e.g. heating radiators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2220/00—Closure means, e.g. end caps on header boxes or plugs on conduits

Definitions

  • the invention is applied in particular, but not exclusively, to radiator elements made of cast aluminum.
  • the heating radiator element according to the invention is provided with a closing plug that is simple and fully effective and that is applied in a simple, fast and economical way, without requiring relatively long and complex operations; in addition, the plug remains entirely hidden within the radiator element, without altering the aesthetic line of the latter.
  • the seat 10 has an axial radially inner shoulder 11, facing the chamber 4 and defined, for example, by an undercut 12 formed in the side wall 8 and precisely in the edge 7; in particular, the shoulder 11 is defined by a radially inner projection 13 of the edge 7: the projection 13 extends towards the axis A and can be made by a continuous annular collar or can be interrupted and formed by sectors angularly spaced apart from one another.
  • the connecting portion 30 consists of an end portion of the side wall 24 which is placed at the end 28 of the plug 20 and, in use ( Figure 1) , is widened radially outwards to engage the shoulder 11 (i.e., the undercut 12) and precisely to cooperate in abutment against the shoulder 11, so as to axially clamp the plug 20 between the shoulder 11 and the contact element 14.
  • the sealing ring 36 cooperates with a sealing seat 40 of the seat 10; the sealing seat 40 is constituted for example by the shoulder 15.
  • the sealing ring 36 is axially clamped between the plug 20 and the sealing seat 40.
  • the connecting portion 30 is in an undeformed condition in which the connecting portion 30 has a transverse dimension (cross sectional area) smaller than the cross section of the opening 6 so as to be insertable through the opening 6.
  • the collar 34 and/or the teeth 32 are substantially parallel to the axis A, or in any case oriented with respect to the axis A so as not to axially interfere with the edge 7 and to be axially insertable through the opening 6.
  • the plug 20, provided with the sealing ring 36, is then inserted in the seat 10 through the opening 6 and axially pushed up to abut substantially against the shoulder 15.
  • the connecting portion 30 is plastically deformed for blocking the plug 20, which assumes a blocking configuration (shown in Figure 1) , in the seat 10; precisely, the teeth 32 are widened radially outwards to engage axially the shoulder 11 (i.e. the undercut 12) and axially push the plug 20 against the opposite contact element 14.
  • a suitable tool for example a punch or a member rotatable around the axis A
  • the connecting portion 30 is plastically deformed for blocking the plug 20, which assumes a blocking configuration (shown in Figure 1) , in the seat 10; precisely, the teeth 32 are widened radially outwards to engage axially the shoulder 11 (i.e. the undercut 12) and axially push the plug 20 against the opposite contact element 14.
  • the pressure exerted by the fluid circulating in the element 1, and precisely in the chamber 4 acts on the plug 20 (more precisely, on the convex surface 29) for further blocking the plug 20 in the seat 10, increasing the clamping force of the teeth 32.
  • the plug 20 described above can be used to close any openings 6 formed in the end part 2 of the element 1, also in a different position from that first described and illustrated;
  • the axis A can be, as previously described, the main longitudinal axis of the element 1 (vertical axis in use), but can also be a different axis, variously oriented with respect to the longitudinal axis of the element 1; the axis A should therefore be considered as the axis of the opening 6, that is the axis along which the end part 2 extends, whichever orientation the opening 6 has with respect to the longitudinal axis of the element 1.
  • radiator element and the method for closing its end part described and illustrated here may be subject to modifications and variations that do not depart from the scope of the invention as defined in the appended claims .

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Resistance Heating (AREA)

Abstract

A heating radiator element (1) has a body (3) provided with an internal water chamber (4) for water circulation and comprising a substantially tubular end part (2) extending along an axis (A) and having a bottom opening (S) delimited by an edge (7) and closed by a plug (20), which is housed in a seat (10) formed inside the end part (2); the seat (10) has one radially inner axial shoulder (11), facing the chamber (4), and a contact element (14), facing and opposite to each other; the plug (20) rests in abutment against the contact element (14) and comprises a connecting portion (30) that is widened radially outwards and engages the shoulder (11) of the seat (10) so as to clamp the plug (20) between the shoulder (11) and the contact element (14).

Description

" HEATING RADIATOR ELEMENT AND METHOD FOR CLOSING AN END PART OF A HEATING RADIATOR ELEMENT"
TECHNICAL FIELD
The present invention relates to a heating radiator element and to a method for closing an end part of a heating radiator element .
The invention is applied in particular, but not exclusively, to radiator elements made of cast aluminum.
BACKGROUND ART
As known, a cast aluminum radiator element typically has a tubular body which extends along an axis and has an end part which, for constructive requirements, is open at the bottom; the end part therefore has a bottom opening arranged along the axis, as well as, typically, a pair of opposite side holes for allowing the connection of the element to other similar elements.
Also radiator elements made with other technologies have bottom openings which must be closed.
Various systems for closing the bottom opening of a radiator element are known.
The traditional solution consists in welding a lid around a front edge of the bottom opening. This solution is not entirely satisfactory, since it requires the execution of a weld with all the disadvantages associated therewith.
Other solutions, which provide instead a mechanical coupling between a lid and the end part of the radiator element, are not fully satisfactory in terms of hydraulic seal and/or cost effectiveness and simplicity of implementation, as well as, in some cases, from an aesthetic point of view. DISCLOSURE OF INVENTION
It is an object of the present invention to provide a heating radiator element and a method for closing an end part of a heating radiator element that are free of the drawbacks highlighted in the prior art; in particular, it is an object of the invention to provide a radiator element having a bottom opening closed in a simple, effective and fully satisfactory way also from an aesthetic point of view. The present invention therefore relates to a heating radiator element, in particular an element made by aluminum die casting, and a method for closing an end part of said radiator element, as defined in essential terms in the appended claims 1 and, 12, respectively.
The heating radiator element according to the invention is provided with a closing plug that is simple and fully effective and that is applied in a simple, fast and economical way, without requiring relatively long and complex operations; in addition, the plug remains entirely hidden within the radiator element, without altering the aesthetic line of the latter.
BRIEF DESCRIPTION OF THE DRAWINGS
Further characteristics and advantages of the present invention will become clear from the following example describing a non- limiting embodiment thereof, with reference to the accompanying drawings, wherein:
- Figure 1 is a partial view in longitudinal section of a heating radiator element according to the invention, and specifically shows an end part of the radiator element provided with a closing plug;
- Figure 2 is a partial exploded view in longitudinal section of the radiator element of figure 1, where the plug is shown in an initial mounting configuration;
- Figures 3, 4 and 5 are in the order a perspective view, a side view and a longitudinal sectional view of the plug of the radiator element, shown in the initial mounting configuration.
BEST MODE FOR CARRYING OUT THE INVENTION
In Figures 1 and 2 is indicated as a whole with 1 a heating radiator element, of which only an end part 2 is shown; the element 1 has a body 3 made of metallic material, in particular in aluminum and for example in die-cast aluminum (i.e. obtained through an aluminum die casting process) ; the body 3 is a substantially tubular body provided with an internal water chamber 4 for water circulation; the body 3 and the radiator element 1 as a whole extend longitudinally along an axis A which, with reference to the normal use position of the element 1, is substantially vertical; the element 1 is provided with transverse connecting sleeves for the connection to other radiator elements and/or to an hydraulic circuit, and a plurality of fins and/or radiant plates variously connected together and/or to the body 3, all components known and not shown for simplicity.
The body 3 has for example a cross-section, possibly variable along the axis A, substantially circular or oval or elliptical, or yet another shape. The end part 2 is arranged at an axial end 5 of the element 1, for example a lower end (always with reference to the normal use position of the element 1) .
The end part 2 is substantially tubular and extends substantially along the axis A and has a bottom opening 6 arranged along the axis A and substantially transverse to the axis A and delimited by an edge 7. The end part 2 is delimited by a lateral wall 8 which preferably, but not necessarily, has a circular or substantially oval or elliptical cross section.
The end part 2 preferably comprises a flared outwards portion 9, which diverges towards the opening 6 and converges towards the inside of the element 1 (i.e. towards the chamber 4); the end part 2 is internally provided with a seat 10 that communicates with the opening 6 and which is in turn preferably, but not necessarily, flared outwards, diverging towards the opening 6 and the edge 7.
The seat 10 has an axial radially inner shoulder 11, facing the chamber 4 and defined, for example, by an undercut 12 formed in the side wall 8 and precisely in the edge 7; in particular, the shoulder 11 is defined by a radially inner projection 13 of the edge 7: the projection 13 extends towards the axis A and can be made by a continuous annular collar or can be interrupted and formed by sectors angularly spaced apart from one another.
The seat 10 also has a contact element 14, for example constituted by a shoulder 15 axially facing and opposite to the shoulder 11 and defined by a transverse narrowing of the seat 10.
The opening 6 is closed by a plug 20 that is inserted inside the end part 2, and specifically in the seat 10; advantageously, the plug 20 is entirely housed in the seat 10 within the end part 2 and does not project axially (along the axis A) beyond the edge 7.
As shown in detail in Figures 3-5, the plug 20 has a body 21, preferably a monolithic body (for example, in aluminum or other metallic material, but also in polymeric or composite material) , extending along and around the axis A and insertable into the seat 10; the body 21 is advantageously a substantially hollow cup- shaped body; in particular, the body 21 is generally concave and has a cavity 22 delimited by a bottom wall 23, substantially transverse to. the axis A and having the shape in plan of the cross-section of the end part 2, and by a lateral wall 24, arranged around the axis A and which extends from the bottom wall 23 towards the opening 6 and the edge 7. The bottom wall 23 has two opposite surfaces 25, 26 and precisely a surface 25, facing towards the opening 6 and the edge 7 and from which the side wall 24 protrudes, and a surface 26 facing the chamber 4; the surface 25 is concave ; the surface 26 is convex.
The side wall 24 is, for example (but not necessarily) substantially parallel to the axis A, but could also be inclined to the axis A. The plug 20 extends along the axis A between two opposite axial ends 27, 28, provided respectively with a closing surface 29, defined by the surface 26 of the bottom wall 23 and facing towards the chamber 4, and a connecting portion 30. The connecting portion 30 is plastically deformable for mechanically coupling the plug 20 to the end part 2.
In particular, the connecting portion 30 consists of an end portion of the side wall 24 which is placed at the end 28 of the plug 20 and, in use (Figure 1) , is widened radially outwards to engage the shoulder 11 (i.e., the undercut 12) and precisely to cooperate in abutment against the shoulder 11, so as to axially clamp the plug 20 between the shoulder 11 and the contact element 14.
In particular, the connecting portion 30 comprises a plurality of teeth 32 that project radially outwards from the end 28 to engage the undercut 12; the teeth 32 are arranged along a peripheral edge 33 of the side wall 24 and are angularly spaced apart from one another. In the non- limiting embodiment shown, the connecting portion 30 is defined by a substantially annular collar 34, that projects from the end 28; the teeth 32 are constituted by respective portions of the collar 34, separated by through slots 35 radially formed through the collar 34.
The element 1 further comprises a sealing ring 36, for example a gasket of elastomeric material, which is arranged between the plug 20 and the end part 2 inside the seat 10 and that fluid tightly seal the end part 2. In particular, the sealing ring 36 is interposed between an outer surface 37 of the plug 20 and an inner surface 38 of the end part 2 (namely of the seat 10) , and is optionally housed in a seat formed on the surface 37 and/or on the surface 38.
In the non-limiting embodiment shown, the sealing ring 36 is fitted around the side wall 24 of the plug 20, and is housed in a recess 39 of the side wall 24; the recess 39 is defined by a step formed between the side wall 24 and the connecting portion 30.
The sealing ring 36 cooperates with a sealing seat 40 of the seat 10; the sealing seat 40 is constituted for example by the shoulder 15. The sealing ring 36 is axially clamped between the plug 20 and the sealing seat 40.
According to the invention, the bottom opening 6 of the end part 2 is closed with the following method. The plug 20 is arranged in an initial mounting configuration
(shown in Figures 2 and 3-5) wherein the plug 20 is insertable into the seat 10 through the opening 6; in particular, the connecting portion 30 is in an undeformed condition in which the connecting portion 30 has a transverse dimension (cross sectional area) smaller than the cross section of the opening 6 so as to be insertable through the opening 6. In the present embodiment, the collar 34 and/or the teeth 32 are substantially parallel to the axis A, or in any case oriented with respect to the axis A so as not to axially interfere with the edge 7 and to be axially insertable through the opening 6.
The plug 20, provided with the sealing ring 36, is then inserted in the seat 10 through the opening 6 and axially pushed up to abut substantially against the shoulder 15.
Subsequently, by way of a suitable tool, for example a punch or a member rotatable around the axis A, the connecting portion 30 is plastically deformed for blocking the plug 20, which assumes a blocking configuration (shown in Figure 1) , in the seat 10; precisely, the teeth 32 are widened radially outwards to engage axially the shoulder 11 (i.e. the undercut 12) and axially push the plug 20 against the opposite contact element 14.
In the blocking configuration the plug 20 is blocked in the seat 10 by the connecting portion 30 and precisely by the teeth 32: the connecting portion 30 is in a deformed condition wherein it has a transverse dimension (cross sectional area) larger than the opening 6.
In the shown embodiment, the collar 34 and/or the teeth 32 diverge outwards and towards the side wall 8 of the end part 2 and are inclined with respect to the axis A so as to axially interfere with the edge 7 and precisely so as to engage the shoulder 11 and the undercut 12.
The end part 2 of the element 1 has instead not to be deformed, nor does it require further mechanical machining for blocking the plug 20 in the seat 10. The plug 20 is shaped so that a pressure exerted on the closing surface 29 (defined in this case by the surface 26 of the bottom wall 23 and therefore also convex) tends to radially enlarge the connecting portion 30 and precisely to diverge teeth 32 from the axis A.
In this way, in use, the pressure exerted by the fluid circulating in the element 1, and precisely in the chamber 4, acts on the plug 20 (more precisely, on the convex surface 29) for further blocking the plug 20 in the seat 10, increasing the clamping force of the teeth 32.
This effect is obtained by way of the geometry of the plug 20 and is incremented, in particular, by the fact that the closing surface 29 is convex.
It is understood that the plug 20 described above can be used to close any openings 6 formed in the end part 2 of the element 1, also in a different position from that first described and illustrated; the axis A can be, as previously described, the main longitudinal axis of the element 1 (vertical axis in use), but can also be a different axis, variously oriented with respect to the longitudinal axis of the element 1; the axis A should therefore be considered as the axis of the opening 6, that is the axis along which the end part 2 extends, whichever orientation the opening 6 has with respect to the longitudinal axis of the element 1.
It is then understood that the radiator element and the method for closing its end part described and illustrated here may be subject to modifications and variations that do not depart from the scope of the invention as defined in the appended claims .

Claims

1. A heating radiator element (1) , having a body (3) , provided with an internal water chamber (4) for water circulation and comprising a substantially tubular end part (2) , which extends along an axis (A) and has a bottom opening (6) delimited by an edge (7) and closed by a plug (20) , which is housed in a seat (10) formed inside the end part (2) ; the radiator element being characterized in that the seat (10) has at least one radially inner axial shoulder (11) , facing the chamber (4), and a contact element (14), facing and opposite to each other; and the plug (20) rests against the contact element (14) and comprises a connecting portion (30) that is widened radially outwards and engages the shoulder (11) of the seat (10) so as to clamp the plug (20) between the shoulder (11) and the contact element (14) .
2. A radiator element according to claim 1, wherein the shoulder (11) is defined by an undercut (12) formed in the edge (7) and in particular by a radially inner projection (13) of the edge (7) that extends towards the axis (A) .
3. A radiator element according to claim 1 or 2, wherein the contact element (14) consists of a second axial shoulder (15) facing and opposite to the shoulder (11) and defined by a transverse narrowing of the seat (10) .
. A radiator element according to one of the preceding claims, wherein the plug (20) extends along the axis (A) between two opposite axial ends (27, 28), provided with a closing surface (29) , facing the chamber
(4) , and the connecting portion (30) respectively.
5. A radiator element according to claim 4, wherein the plug (20) is shaped so as a pressure exerted onto the closing surface (29) tends to widen radially the connecting portion (30) .
6. A radiator element according to one of the preceding claims, wherein the plug (20) has a convex closing surface (29) facing the inside of the radiator element (1) and the chamber (4) .
7. A radiator element according to one of the preceding claims, wherein the connecting portion (30) comprises a plurality of teeth (32) that project radially outwards from an end (28) of the plug (20) for engaging the shoulder (11) and are angularly spaced apart from one another.
8. A radiator element according to claim 7, wherein the connecting portion (30) is defined by a substantially annular collar (34) , that projects from the end (28) of the plug (20) , and the teeth (32) consist of respective portions of the collar (34) , separated by radially through slots (35) formed through the collar (34) .
9. A radiator element according to one of the preceding claims, wherein the plug (20) is entirely housed in the seat (10) inside the end part (2) and does not project axially along the axis (A) beyond the edge (7) .
10. A radiator element according to one of the preceding claims, wherein he radiator element (1) comprises a sealing ring (36) which is positioned inside the seat (10) and is interposed between an outer surface (37) of the plug (20) and an inner surface (38) of the seat (10) .
11. A radiator element according to one of the preceding claims, wherein the seat (10) is flared outwards, and diverges towards the opening (6) and the edge (7) .
12. A method for closing an end part (2) of a heating radiator element (1) , characterized by comprising the steps of:
- providing a radiator element (1) having a body (3) , provided with an internal water chamber (4) for water circulation and comprising a substantially tubular end part (2) , which extends along an axis (A) and has a bottom opening
(6) , delimited by an edge (7) , and a seat (10) for receiving a plug (20) ; the seat (10) having at least one radially inner axial shoulder (11) , facing the chamber (4) , and a contact element (14),' facing and opposite to each other;
- providing a plug (20) in an initial mounting configuration, in which the plug (20) is insertable in the seat (10) through the opening (6) ;
- introducing the plug (20) in the seat (10) through the opening (6) until reaching the contact element (14) in the seat (10) ;
- deforming a connecting portion (30) of the plug (20) for blocking the plug (20) in the seat (10) , by widening radially outwards the connecting portion (30) so as to engage the shoulder (11) of the seat (10) and to clamp the plug (20) between the shoulder (11) and the contact element (14) .
PCT/IB2013/053812 2012-05-10 2013-05-10 Heating radiator element and method for closing an end part op a heating radiator element WO2013168143A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI2012A000804 2012-05-10
IT000804A ITMI20120804A1 (en) 2012-05-10 2012-05-10 RADIATOR ELEMENT FOR HEATING AND CLOSING METHOD OF A TERMINAL PART OF A HEATING RADIATOR ELEMENT

Publications (2)

Publication Number Publication Date
WO2013168143A1 true WO2013168143A1 (en) 2013-11-14
WO2013168143A8 WO2013168143A8 (en) 2014-03-13

Family

ID=46321268

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2013/053812 WO2013168143A1 (en) 2012-05-10 2013-05-10 Heating radiator element and method for closing an end part op a heating radiator element

Country Status (2)

Country Link
IT (1) ITMI20120804A1 (en)
WO (1) WO2013168143A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015173766A1 (en) * 2014-05-15 2015-11-19 Mecc-Lan S.R.L. Radiator element provided with a hooked closing cap and radiator thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19637324C1 (en) * 1996-09-13 1997-11-20 Berg Hans Gmbh & Co Kg Closure piece for connecting sleeve of heating fitment
WO2011012978A2 (en) * 2009-07-28 2011-02-03 Fondital S.P.A. Heating radiator element, in particular made of die-cast aluminium, and method for closing an end part of a heating radiator element
WO2011012981A1 (en) * 2009-07-28 2011-02-03 Fondital S.P.A. Heating radiator element and method and device for closing an end part of a heating radiator element

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19637324C1 (en) * 1996-09-13 1997-11-20 Berg Hans Gmbh & Co Kg Closure piece for connecting sleeve of heating fitment
WO2011012978A2 (en) * 2009-07-28 2011-02-03 Fondital S.P.A. Heating radiator element, in particular made of die-cast aluminium, and method for closing an end part of a heating radiator element
WO2011012981A1 (en) * 2009-07-28 2011-02-03 Fondital S.P.A. Heating radiator element and method and device for closing an end part of a heating radiator element

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015173766A1 (en) * 2014-05-15 2015-11-19 Mecc-Lan S.R.L. Radiator element provided with a hooked closing cap and radiator thereof
CN106415137A (en) * 2014-05-15 2017-02-15 麦克-兰有限公司 Radiator element provided with hooked closing cap and radiator thereof
EA031247B1 (en) * 2014-05-15 2018-12-28 МЕКК-ЛАН С.р.л. Radiator element provided with a hooked closing cap and radiator thereof
CN106415137B (en) * 2014-05-15 2020-09-29 麦克-兰有限公司 Heat sink element

Also Published As

Publication number Publication date
WO2013168143A8 (en) 2014-03-13
ITMI20120804A1 (en) 2013-11-11

Similar Documents

Publication Publication Date Title
US10221976B2 (en) Fluid coupling with lock connection
CA2939349C (en) Clam shell push-to-connect assembly
CA2885457C (en) Fitting for a metallically sealing, and method for joining a fitting to a metallic pipe
TWI658229B (en) Valve coupling and method of joining pipe elements to a valve
EP2459950B1 (en) Heating radiator element and method and device for closing an end part of a heating radiator element
EP3052849B1 (en) Quick-connect clip-on connector
US10156308B2 (en) Connector
HUE028010T2 (en) Fitting for connecting pipes, in particular flexible pipes
WO2013168143A1 (en) Heating radiator element and method for closing an end part op a heating radiator element
JP6289122B2 (en) Detachment prevention fitting
US9169950B2 (en) Connector for flexible hoses
JP5484169B2 (en) Branch joint
US9021701B1 (en) Ferrule, hose coupling, and methods of making same
EP3301339B1 (en) Assembly of a press-fitting connector and a corrugated pipe and kit comprising the assembly and a press-fitting tool for its application
JP2007170658A (en) Pipe joint
US20180135785A1 (en) Axial metal seal retainer for improved fatigue resistance
KR100945494B1 (en) Stainess pipe connecting structure
KR20220050225A (en) pipe joint member
EP2193964B1 (en) Brake master cylinder
CN107036476B (en) Heat exchange tube, heat exchanger and method for manufacturing heat exchanger
WO2011012978A2 (en) Heating radiator element, in particular made of die-cast aluminium, and method for closing an end part of a heating radiator element
JP6085048B2 (en) nipple
JP6613136B2 (en) Tube unit
GB2581773A (en) Connector
JP2015205326A (en) Method of manufacturing metal fitting for fluid piping, and metal fitting for fluid piping

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13735416

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 13735416

Country of ref document: EP

Kind code of ref document: A1