Integrated connection system in a tubular fluid distribution element

Abstract

An integrated connection system in a tubular fluid distribution element, comprising a tubular element (1) having a first enlarged cup-shaped end (2) and an opposite second opposite end (7) equipped with radial protrusions (8), wherein said first enlarged cup-shaped end (2) is equipped with a special-shaped flange (3) having a concentric edge (4) external to the tubular element and a respective cavity (41) facing the internal of the tubular element (1), said flange being able to receive and hold within it an elastic gasket (11) of circular or other convenient form, and wherein said first enlarged cup-shaped end (2) is equipped with radial recesses (5) which are also concentric and placed side by side outside said edge (4), equipped with an end edge (6) projecting with respect to the external surface of the tubular element itself, wherein the assembly of the tubular elements is carried out by inserting the second opposite end (7) of a tubular element (1) inside the first enlarged cup-shaped end (2) of a similar tubular element (1) until the end of its axial travel up to the contact of the base or shoulder (9) of said first enlarged cup-shaped end (2) with the edge of said second opposite end (7) after which, having said edge already passed through said elastic gasket (11) housed in said cavity (41), a connection block (10) comprising two half-circles (27, 27') is placed radially around said tubular elements (1, 1') at this concentric edge (4) and at this end edge (6), said two half-circles fastening themselves by fastening said two tubular elements (1, 1') by means of clamping elements.

Description

TECHNICAL FIELD

[0001] The present invention relates to a connection system for tubular fluid distribution elements. In particular, the present invention relates to an integrated connection system in a tubular element able to withstand high fluid pressure. BACKGROUND

[0002] Various types of joint systems for tubular elements for fluid distribution are known. The first type consists of a system in which the joint between circular section pipes occurs without the use of radial welding and without threads, where the joint is achieved by using a waterproof cup of elastic sealing gasket. Each single tubular element has a socket joint (female joint) at one end and at the opposite end a joint with a size equal to the nominal outer diameter of the tubular element (male joint) with a tolerance to allow the connection between them. The hydraulic seal to the internal pressure (and to the vacuum) is ensured by a ring gasket (or other suitable shape) in an elastic material. Thus, the pipes can be introduced one inside the other in order to form a continuous pipe. The main disadvantage of this type of joint is that, in the case of introduction of a pressure of a certain force, the extraction resistance between the pipes cannot be guaranteed at all. In order to guarantee the extraction resistance, suitable auxiliary work is necessary, such as concrete blocks, mechanical anchors, etc. These pipes are mainly used for the construction of water pipes, irrigation systems, waste water, fume extraction, vacuum and sewage systems at relatively low atmospheric pressure values. The materials used are many, including metals, thermoplastic plastics, ceramics and fiber cement. They also have several disadvantages, including the impossibility of a stable connection between the pipes when the fluid is under pressure, except through special treatment and / or auxiliary work. Another known system includes pipes with continuous circular section and joint fittings made of the same metal material, where the hydraulic seal to the internal pressure (and to the vacuum) is ensured by a ring gasket (or other suitable shape) in an elastic material. The pipes can be easily inserted into the spigot of the joint sleeve (or another shape of fitting: for example, elbow, reduction), and the anti-slip retention of the tubular elements is achieved by means of extrusion of the radial sectors by means of a tool (mainly hydraulic clamp).

[0003] Therefore, since the locking system is precisely composed of the deformation of the tubular elements and of the fittings, the pressure applied internally to the pipes cannot cause the separation (extraction) of one tubular element from the other. The materials used are mainly stainless steel and copper. The system also has several drawbacks, including the need to use two gaskets on a single joint for as many assembly operations, the need for specific equipment to perform the extrusion, the impossibility of disassembly and reassembly in case of error or modification, and finally, the risk of hydraulic system leakage and / or the need to re-manufacture the joint in case of incorrect "pressing" or positioning of the pipes by the operator. It is also known a connection system by means of a shell fitting, provided with a radial recess positive with respect to the outer surface of the pipes, which has the function of retaining the pipes and housing / compressing an elastomeric sleeve gasket. Each single tubular element has, near each end, a radial recess with a mainly rectangular or semicircular section. The extraction is performed by mechanical treatment or by plastic deformation (for example, rolling). The two half-shells are joined together by bolts at the closed ends of the two pipes and thus perform the retaining function between the same pipes by means of radial segment protrusions that can fit into the corresponding recesses of the tubular elements and achieve the hydraulic seal by housing / compression of the gaskets between the gaskets housed in seats of suitable geometry. Therefore, since the locking system is precisely composed of the recesses (recesses) of the tubular elements that house similar segments of radial teeth (without interference), the pressure applied internally to the pipes cannot cause the separation (extraction) of the pipes. The complementary fitting uses the same connection system, but the recesses (recesses) can also be obtained by forming in a mold (mold casting, casting, forging, etc.). The materials mainly used are: steel, cast iron, stainless steel and aluminum alloys. The system, although allowing a certain speed of installation, requires the joining together of tubular elements of different lengths and the possibility of disassembly and reassembly has several drawbacks, including the high cost of the elastomeric gaskets and the need for caulking of the tubular elements at the two ends. In addition to this, the large volume of the elastomeric gaskets is subjected to a mechanical compression that is generally not uniform, with possible defects in the hydraulic seal (in particular, after installation, due to the possible elastic decay of the elastomer that forms the gasket). The installation also requires a perfect alignment of the pipes, due to the small wedge depth, which creates possible problems of hydraulic seal. Furthermore, if it is necessary to have different lengths of tubular elements from the standard supply, it is necessary to perform an auxiliary treatment (rolling, pressing, turning) on one or more pipes. This operation of cutting to size of the tubular elements involves the loss of one of the two radial recesses, which must be recreated: therefore, the availability of appropriate equipment on site is necessary. However, the recesses formed by rolling cause a local narrowing (constriction) of the passage portion, which is repeated twice for each single pipe.The variations in the passage section also determine the turbulent flow and head losses as a function of the flow rate values, and in the case of recessed grooves performed by removing material (for example, turning), the thickness of the ducts must be excessively large. With this system, the maximum internal pressure values generally cannot exceed 8-10 bar. This is based on the safety factor established by international standards, which can require a minimum yield pressure up to five times the operating pressure. Another known joint system uses a radial band joint of shaped sheet metal, which allows the retention of the tubular elements by compressing the notched radial ring in the sector, and the hydraulic seal by compressing the sleeve gasket. The band joint surrounds the end of the two opposite pipes and "reduces" the diameter by tightening two or more bolts corresponding to the longitudinal openings of the band itself: the reduction of the diameter causes the teeth to penetrate into the thickness of the pipes and, therefore, in contrast to the axial extraction and tightening of the bolts, allows the elastic gasket to be compressed along the surface of the two pipes and, therefore, to achieve the hydraulic seal. The material mainly used for the construction of the essential elements is stainless steel. The disadvantages of this system are the need for perfect alignment of the ducts due to the small bite depth, with possible problems of the hydraulic seal, difficult insertion onto the tubular elements due to the possible limit of expansion contained in some variables of the diameter of the coupler that can be used. Furthermore, the tubular elements require caulking of the opposite ends of the socket, the tightening of the bolts using a torque wrench is mandatory, and the large volume of the elastic gasket is subjected to a mechanical compression that is generally not uniform, with possible defects of the hydraulic seal (in particular, after installation, due to the possible elastic decay of the elastomer made of the gasket). Even in this case, the maximum internal operating pressure values generally cannot exceed 8-10 bar. This is based on the safety factor established by international standards, which can require a minimum yield pressure up to five times the operating pressure. The last known connection system provides for the retention of the tubular elements by means of an elastic gasket with sleeve coupling with hydraulic seal, and with a compressed half-ring acting on a ring with truncated conical section with radial teeth and equipped with tangential clearance. The fitting is inserted axially on the duct (and / or on the duct in the fitting) for the entire degree of keying, through the gasket (usually with annular portion) placed in the seat of the body, up to the stop. By acting on the half-ring bolt, the diameter of the truncated conical ring is reduced, causing the radial teeth to penetrate into the thickness of the pipe. The truncated conical portion improves the penetration of the teeth when the axial stress generated by the internal pressure is relatively high. The construction material is mainly aluminum alloy, different metals and thermoplastic. This joint system also has several disadvantages, including the use of two gaskets on a single joint for many assembly operations: the cost of the joint is quite high. SUMMARY

[0004] The present invention overcomes the above-mentioned drawbacks by providing a stable and safe connection system for pipes, which can be made in reduced installation times, using not complex, bulky and usually supplied assembly equipment and accessories (Allen key, fixed key, battery screwdriver of normal power).

[0005] The system also provides an internal pressure resistance of the fluid up to, for example, 16 bar, with a minimum yield pressure substantially corresponding to 72 bar, with a safety factor value of up to 4.5. Furthermore, it is always possible to assemble, disassemble and reassemble the pipes, using pipes of non-standard length, without the need to recreate the flanges / recesses / grooves necessary to keep them. Finally, for each joint, the system uses a single gasket with a relatively low cost. BRIEF DESCRIPTION OF DRAWINGS

[0006] The integrated connection system for tubular fluid distribution elements of the present invention. The present invention will be described in detail in one of its embodiments, which is exemplary and not limiting, in the attached drawings:

[0007] · Figure 1 a perspective longitudinal section of a tubular element according to the present invention is shown,

[0008] · Figure 2 an enlarged view of detail A of Figure 1 is shown,

[0009] · Figure 3 an enlarged view of detail B of Figure 1 is shown,

[0010] · Figure 4 a perspective longitudinal section of two tubular elements connected together by the system according to the first embodiment of the present invention is shown,

[0011] · Figure 5 an enlarged view of detail C of Figure 4 is shown,

[0012] · Figure 6 a top view of two tubular elements connected together with a joint according to the prior art is shown,

[0013] · Figure 7 a side view of what is shown in Figure 6 is shown,

[0014] · Figure 8 a longitudinal section according to A-A of Figure 7 is shown,

[0015] · Figure 9 an enlarged view of detail D of Figure 8 is shown,

[0016] Figure 10a 10b and 10c show assembly steps of two tubular elements connected together by a connection system according to the present application,

[0017] Figure 11 shows a perspective longitudinal section view of two tubular elements connected together by a connection system according to a second embodiment of the present application,

[0018] Figure 12 shows an enlarged view of detail E of Figure 11

[0019] Figure 13 shows a perspective longitudinal section view of two tubular elements connected together by a connection system according to a third embodiment of the present application,

[0020] Figure 14 shows an enlarged view of detail G of Figure 13

[0021] Figure 15 shows a perspective longitudinal section view of two tubular elements connected together by a connection system according to a fourth embodiment of the present application,

[0022] Figure 16 shows an enlarged view of detail F of Figure 15

[0023] Figure 17 shows a top view of a compression ring according to the present application,

[0024] Figure 18 shows a side view of the compression ring of Figure 17

[0025] Figure 19 shows another side view of the compression ring of Figure 17

[0026] Figure 20 shows a cross section according to A-A of Figure 17

[0027] Figure 21 shows a perspective view of the compression ring of Figure 17

[0028] Figure 22 shows a top view of a compression ring according to a second embodiment of the present application,

[0029] Figure 23 shows a side view of the compression ring of Figure 22

[0030] Figure 24 shows Figure 22 ​​​​​​​​​​​​​​​​​​​​​another side view of the compression ring of the

[0031] · Figure 25 shows a cross-sectional view according to A-A of the Figure 22

[0032] · Figure 26 shows a perspective view of the compression ring of the Figure 22

[0033] · Figure 27 shows a top view of the compression ring of a third embodiment of a ring according to the present application,

[0034] · Figure 28 shows a side view of the compression ring of the Figure 27

[0035] · Figure 29 shows another side view of the compression ring of the Figure 27

[0036] · Figure 30 shows a cross-sectional view according to A-A of the Figure 27

[0037] · Figure 31 shows a cross-sectional view according to B-B of the Figure 27

[0038] · Figure 32 shows a perspective view of the compression ring of the Figure 27

[0039] · Figure 33 shows a top view of a spacer according to the present application,

[0040] · Figure 34 shows a side view of the spacer of the Figure 33

[0041] · Figure 35 shows a front view of the spacer of the Figure 33

[0042] · Figure 36 shows a cross-sectional view of the spacer according to A-A of the Figure 33

[0043] · Figure 37 shows a cross-sectional view of the spacer according to B-B of the Figure 33

[0044] · Figure 38 shows a perspective view of the spacer of the Figure 33 DETAILED DESCRIPTION

[0045] ​​​​​​​​​​​​With reference to the above figures, the tubular element 1 according to the present application has, at the first enlarged cup-shaped end 2, an enlarged cup (concave portion) equipped with a flange 3 of special shape so as to form a concentric edge 4 outside the tubular element and a corresponding cavity 41 turned towards the inside of said tubular element 1 suitable to receive and hold, inside it, an elastic gasket 11 having a circular seal or other convenient shape. Said tubular element 1 comprises, in said first enlarged cup-shaped end 2, a radial recess 5 which is also concentric, provided with an end edge 6 projecting with respect to the outer surface of said tubular element 1, on both sides and outside of said concentric edge 4. Therefore, the aforesaid concentric edge 4 and the aforesaid radial recess 5 form an "S" shaped flange.

[0046] On the other hand, the second opposite end 7 (convex portion) of the tubular element 1 has the same diameter as the tubular element and is equipped with a preferably continuous radial projection with radial projections 8. These tubes are then assembled by inserting the second opposite end 7 of the tubular element 1 inside the first enlarged cup-shaped end 2 of another tubular element 1' up to the end of its axial stroke and therefore after this edge has passed through the elastic gasket 11 housed in the cavity 41, bringing the base or shoulder 9 of the first enlarged cup-shaped end 2 in contact with the edge of the second opposite end 7. In this position, the radial projections 8 of the tubular element 1 are located in the end edge 6 of the tubular element 1'. In order to ensure the axial holding force between the tubular elements 1 and 1', a connecting block 10 is provided consisting of two semicircles 27, 27' placed radially around the tubular element 1 at said concentric edge 4 and at said end edge 6, thus clamping the two tubular elements 1, 1'. Said connecting block comprises at its ends a pair of symmetrical projections 31, 31', 32, 32' with a first through hole 12, 12' able to house a fastening element, for example a screw 13, which is locked with a relative nut 14. The two semicircles 27, 27' on the inner side have radial cavities 15, 16 of special shape so as to house in the radial cavity 15 the concentric edge 4 of the flange 3 and in the radial cavity 16 the end edge 6 of the flange 3. Close to the radial cavity 16 (on the side of the end edge 6 of the flange 3) there is a radial recess 17 which is also concentric and which is provided with a second through hole 18 able to house a fastening element, for example a screw 19, which is locked with a relative nut 20. The radial cavity 16 is also provided with a third through hole 21 able to house a fastening element, for example a screw 22, which is locked with a relative nut 23. The radial cavity 15 is also provided with a fourth through hole 24 able to house a fastening element, for example a screw 25, which is locked with a relative nut 26. Figure 5) of the connecting block 10 has an inclined wall 17 which rests on and covers the radial protrusion 8 of the tubular element 1 and is fitted with a first tooth 18 which in turn rests on the outer edge of the tubular element 1. Thus, the two semicircles 27, 27' geometrically replicate the profile of the flange 3, the radial protrusion 8 of the tubular element 1' and the adjacent portion of the tubular element 1, forming a solid joint engagement when the fastening screw 13 of the connecting block 10 is screwed in. In order to facilitate the alignment of the two locking semicircles 27, 27', the use of a spacer 28 (optional) is provided, shaped in particular to partially house the symmetrical protrusions 31, 31', 32, 32' which must be connected together, thus acting as a fixed guide. Said spacer 28 is equipped with a bushing 29 which can be fitted into the special hole 30, 30' formed in the symmetrical protrusions 31, 31', 32, 32' and into the second through hole 33 which houses the fastening screw 13. Then, in this case, due to the configuration of the piping network, it is necessary to have a shorter tubular element, it is possible to cut the second opposite end 7 of the tubular element 1 which is the tubular element with the radial protrusion 8. In this case, if the cut including said protrusion 8 is in the second embodiment of the present invention ( Figure 11 ), the retention of the cut tubular element, by using a frustoconical crimp ring 19 equipped with teeth 20 in the inner portion, the teeth 20 are able to grip the tubular element when the fastening screw 13 of the connecting block 10 is tightened. Said crimp ring 19 is also equipped with notches 21 the size of which is determined on the basis of the effective need to fasten the tubular element according to its circumference and its thickness. It is inserted into the tubular element 1' and made to slide along it until it contacts the upper portion of the flange 3 of the tubular element; in this position, the inner portion of the connecting block 10 corresponds to the outer portion of the crimp ring 19 with the inclined wall 17 and, when the fastening screw 13 is tightened, the inclined wall 17 presses on the inclined edge 24 of the crimp ring 19, thus causing the crimping described above.

[0047] The particular geometry of the teeth 20 is such as to ensure the retention of the tubular element when it penetrates in the tubular element 1 in the range of variation of 0.5 to 1 millimeters or more with respect to its thickness. However, the penetration must be limited so as not to cause excessive notching in the wall of the tubular element. In a further embodiment, preferably, the crimp ring 19 is provided with two or more teeth 22, 22' in the inner portion, or by a series of two or more teeth 23, 23' parallel to each other and interspersed with free spaces, so as to ensure an even greater pressure seal. In a third embodiment of the present invention ( Figure 13) in which the connecting block 10 is made up of two locking half-circles 27, 27' which, on one side, are connected together by means of an engagement pin 34, while on the other side, the ends are free and can be connected by means of fastening screws 13 with the relative nuts 14. In this case, if it is wished to use spacers 28, therefore only one can be used. The assembly of the pipeline made up of two or more tubular elements is simply carried out by inserting one tubular element inside the other: the second opposite end 7 of the tubular element is introduced into the first enlarged cup-shaped end 2 (female part) of the opposite tubular element until the end of the axial stroke, so as to guarantee the overcoming of the elastic washer 11 present inside it. Thus, it is possible to create a pipeline network in a short time and by means of a few simple tools. Also in this case, if it is necessary to have shorter tubular elements for the construction needs of the pipeline network, it is possible to cut the second opposite end 7 of the tubular element 1 which is equipped with the radial protrusion 8. In the case of cutting including said radial protrusion 8, according to a fourth embodiment of the application (Fig. 6) Figure 15 ), the cut tubular element is kept by using a frustoconical crimp ring 19 and the method already described in the second embodiment. The embodiments described in this description and the configurations shown in the attached drawings are merely preferred embodiments of the application, but technical variants falling within the above expressed concept of the application are also considered as being protected by this patent.

Claims

1. Integrated connection system in tubular fluid distribution elements, comprising • tubular elements (1, 1'), each having a first enlarged cup-shaped end (2) and a second opposite end (7) equipped with a radial protrusion (8), wherein said first enlarged cup-shaped end (2) is equipped with a special-shaped flange (3) having a concentric edge (4) outside said tubular element and a respective cavity (41) facing the inside of said tubular element (1), able to receive and retain an elastic gasket (11) of circular or other convenient form inside, and wherein said first enlarged cup-shaped end (2) is equipped with a radial recess (5) also concentric, side by side outside said concentric edge (4), equipped with an end edge (6) projecting with respect to the outer surface of said tubular element itself, wherein the assembly of said tubular elements is obtained by inserting the second opposite end (7) of a tubular element (1) inside the first enlarged cup-shaped end (2) of a similar tubular element (1') until the end of its axial travel, until the base or shoulder (9) of said first enlarged cup-shaped end (2) comes into contact with the edge of said second opposite end (7) after said edge has passed through said elastic gasket (11) housed in said cavity (41), • a connecting block (10) comprising two semicircles (27, 27') placed radially around said tubular elements (1, 1') at the concentric edge (4) and at the end edge (6), which fasten themselves by means of a clamping element, thus crimping the two tubular elements (1, 1'), characterized in that, the inside of said two half-circles (27, 27') having special-shaped radial cavities (15, 16) in order to house inside them said concentric edge (4) of said flange (3) in a first radial cavity (15) and said end edge (6) of said flange (3) in a second radial cavity (16), and the edge of said connection block (10) close to the second radial cavity (16) having an inclined wall (17) which rests on and covers said radial protrusion (8) of said tubular element (1) and is equipped with a first tooth (18) which rests on the outer edge of said tubular element (1), whereby said two half-circles geometrically reproduce the profile of said flange (3) of said tubular element (1') so that, when the tightening screw (13) of said connection block (10) is turned, said radial protrusion (8) and the adjacent part of said tubular element (1) form a firm crimping constraint.

2. The integrated connection system in a tubular fluid distribution element of claim 1, wherein, said concentric edge (4) and said radial recess (5) form an S-shaped flange.

3. The integrated connection system in a tubular fluid distribution element of claim 1, wherein, said radial protrusion (8) of said tubular element (1) is adapted to abut against said end edge (6) of said tubular element (1').

4. The integrated connection system in a tubular fluid distribution element of claim 1, wherein, the two half-circles (27, 27') radially placed around the tubular elements (1, 1') are each equipped at the opposite ends with a pair of symmetrical protrusions (31, 31', 32, 32') equipped with a first through hole (12, 12') able to house a tightening element comprising a tightening screw (13) and a relative nut (14) in order to ensure the axial blocking between the tubular elements (1, 1').

5. The integrated connection system in a tubular fluid distribution element according to claim 4, wherein, Said two half-circles (27, 27') are aligned by using spacers (28) specially shaped to partially house said symmetrical protrusions (31, 31', 32, 32') and equipped with bushings (29) that can be fitted into special holes (30, 30') made in said symmetrical protrusions (31, 31', 32, 32') and cooperate with second through holes (33) to house said fastening screws (13).

6. Integrated connection system in a tubular fluid distribution element according to any of claims 1-5, characterized in that, Said connecting block (10) is formed by two half-circles (27, 27') connected together on one side by means of a joint pin (34), while on the other side the ends are free and can be connected by means of fastening screws (13) with associated nuts (14).

7. Integrated connection system in a tubular fluid distribution element, comprising, Tubular elements (1, 1') each having a first enlarged cup-shaped end (2) equipped with a special shaped flange (3) having a concentric edge (4) outside the tubular element and a respective cavity (41) facing the inside of the tubular element (1) able to receive and hold an elastic gasket (11) of circular or other convenient form inside, and a second opposite end (7) equipped with a crimping ring (19), and wherein said first enlarged cup-shaped end (2) is equipped with radial recesses (5) also concentric and side by side outside said concentric edge (4), said radial recesses (5) being equipped with end edges (6) projecting with respect to the outer surface of the tubular element itself, wherein the assembly of the tubular elements is carried out by inserting the second opposite end (7) of a tubular element (1) inside the first enlarged cup-shaped end (2) of a similar tubular element (1) until the end of its axial travel, until the base or shoulder (9) of said first enlarged cup-shaped end (2) comes into contact with the edge of said second opposite end (7) after said edge has passed through said elastic gasket (11) housed in said cavity (41), Said two half-circles (27, 27') are aligned by using spacers (28) specially shaped to partially house said symmetrical protrusions (31, 31', 32, 32') and equipped with bushings (29) that can be fitted into special holes (30, 30') made in said symmetrical protrusions (31, 31', 32, 32') and cooperate with second through holes (33) to house said fastening screws (13). • a connecting block (10) comprising two semicircles (27, 27') placed radially around the tubular elements (1, 1') at the concentric edge (4) and the end edge (6), by fastening itself by means of a clamping element, thus crimping two of the tubular elements (1, 1'), characterized in that the two semicircles (27, 27') have a specially shaped radial cavity (15, 16) inside in order to accommodate the concentric edge (4) of the flange (3) in the first radial cavity (15) and the end edge (6) of the flange (3) in the second radial cavity (16) inside them, and the edge of the connecting block (10) close to the second radial cavity (16) has an inclined wall (17) which rests on and covers the crimping ring (19) and is equipped with first teeth (18) which rest on the outer edge of the tubular element (1), whereby the two semicircles geometrically replicate the profile of the flange (3) of the tubular element (1'), and the locking of the tubular element (1) with the other tubular element (1') is achieved by using a crimping ring (19) with a tapering trunk shape, equipped with teeth (20) in the inner part which can be crimped to the tubular element when the tightening screw (13) of the connecting block (10) is tightened.

8. Integrated connection system in a tubular fluid distribution element according to claim 7, characterized in that The crimping ring (19) with a tapering trunk shape is equipped with two or more teeth (22, 22') in the inner part which can be crimped to the tubular element when the tightening screw (13) of the connecting block (10) is tightened.

9. The integrated connection system in a tubular fluid distribution element of claim 7, wherein, The crimping ring (19) with a tapering trunk shape is equipped with a series of two or more teeth (23, 23') parallel to each other and interspersed with free spaces in the inner part which can crimp the tubular element when the tightening screw (13) of the connecting block (10) is tightened.

10. Integrated connection system in a tubular fluid distribution element according to any one of claims 7-9, characterized in that, The crimping ring (19) is equipped with notches (21) the size of which is determined on the basis of the effective need to fasten the tubular element according to the size of the circumference of the pipe and its thickness.

11. Integrated connection system in a tubular fluid distribution element according to any one of claims 7-9, characterized in that The crimping ring (19) is slid along the tubular element (1) until it contacts the upper part of the flange (3) of the tubular element (1'), so that the inner part of the connecting block (10) intersects with the outer part of the crimping ring (19) at the inclined wall (17).

12. Integrated connection system in a tubular fluid distribution element according to claim 11, characterized in that The inclined wall (17) of the connecting block (10) presses on the inclined edge (24) of the crimping ring (19) when the tightening screw (13) is tightened, thus achieving a firm crimping.

13. The integrated connection system in a tubular fluid distribution element of claim 12, wherein, The teeth (20, 22, 22', 23, 23') penetrate into the tubular element (1) in the range of from 0.5 to 1 or more millimeters.

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