ES2302405B1 - PIPE UNION HOSE TO ABSORBER THERMAL DILATATION AND EV ITAR ELECTROLYSIS. - Google Patents

Abstract

Tube connection sleeve to absorb thermal expansion and prevent electrolysis, applicable both in domestic drinking water installations and in heating installations, comprising the following parts made of brass: a hollow cylindrical cartridge (2) inside which Insert a cylindrical and hollow slide (3) that is welded at one of its ends to a pipe (8) and incorporates two O-rings (9) to prevent water leaks and contact between the different pipes (7, 8) and a stop guide (4) located on the bottom of the cartridge (2) that prevents the slide (3) from being able to exit by means of screws (5) that fix the stop guide (4) to the cartridge (2) through the holes (6) of the cartridge (2). The upper end of the cartridge (2) is threaded to another pipe (7), the sleeve absorbing thermal expansion between the pipes (7, 8).

Description

Tube connection sleeve to absorb the thermal expansion and avoid electrolysis.

It is a set of parts that due to its system serves to prevent dilation and electrolysis in sanitary water and heating installations where they attend copper / copper and copper / iron pipes.

Technical sector

The invention is within the sector of Plumbing facilities.

In the world of plumbing, on the subject concerning the distribution of hot water both in heating as the distribution of domestic hot water, facilities suffer from the market of reliable long-term parts for unions between pipes of different metals iron and copper because of the problems caused by dilation and electrolysis, especially with the copper in heating installations where it most accuses the dilatation.

Current state of the facilities

The existing sleeves in the market deserve poor reliability, especially when it is built, the material with which they are manufactured is flimsy and over time it It forms a lime film where electrolysis occurs.

The sleeves must be changed whole and frequently, with the consequent cost in working hours.

It would therefore be desirable to obtain an item. new to avoid electrolysis and dilation problems, which  although somewhat more expensive than those that are commonly used, its greater robustness and easy repair, avoid large numbers of repairs and therefore savings in the number of hours of job. As a consequence of the foregoing, the invention which proposed in the long term would be economic.

Brief explanation of the figures

The tube connection sleeve to absorb the thermal expansion and avoid electrolysis in joints between tubes Copper / copper and copper / iron, consists of three pieces of brass: Slide cartridge (2) (3) and stop guide (4).

Figure one

Elevation, plan and longitudinal section of the connecting sleeve of tubes to absorb thermal expansion and electrolysis

(one)

Top of the form cartridge hexagonal

(2)

Cartridge

(3)

Slider

(4)

Top guide

(5)

Screw

(6)

Screw hole

(7)

Threaded tube to the cartridge

(8)

Tube that is welded to the slide

(9)

O-rings

Figure 2.1

Figure 2.1 is an elevation, a plan and a cartridge section (2) at the bottom where they are located the holes (6) of the screws (5) for securing the guide stop (4).

The cartridge (2) is a piece of brass shape cylindrical and hollow inside. Upper outer part (1) of the cartridge (2), has a hexagonal shape as a nut for facilitate tightening with the pipes (7).

Figure 2.2

Figure 2.2 is a longitudinal section of the cartridge (2) in which it can be seen in the upper inner part that incorporates a female thread of half an inch, which is with which will produce the union with the pipe (7).

Figure 3

It is an elevation of the slide with two joints O-rings (9) of rubber placed.

An elevation and floor of the slide (3).

And a longitudinal section of the slide (3).

The slider (3) is a piece of brass cylindrical, hollow, inside diameter equal to outside diameter of the pipe (8) to which it is welded.

The outer cylindrical part has two grooves to incorporate the two o-rings (9) of elastic material common in the market, heat resistant.

Figure 4

Elevation and plan of the top guide (4).

Longitudinal and transverse sections of the piece.

The stop guide, (4) is a cylindrical piece and hollow brass, with an outside diameter equal to the inside diameter of the cartridge (2), the inside diameter is one millimeter greater than copper pipes (8).

Preferred embodiment

Tube connection sleeve to absorb the thermal expansion and avoid electrolysis at the joints between copper / copper and copper / iron metals, exercising both functions in a single set.

The sleeve comprises the following parts made of brass: a cylindrical and hollow cartridge (2) in whose inside a cylindrical and hollow slide (3) is inserted which is  welded at one of its ends to a first pipe (8) and incorporates two o-rings (9) to prevent water leaks and the contact between the different pipes (7, 8) and a stop guide (4) located at the bottom of the cartridge (2) that prevents the slide (3) can be removed by means of screws (5) that fix the stop guide (4) to the cartridge (2) through the holes (6) of the cartridge (2). The upper inner part of the cartridge (2) incorporates a female thread for connection with the second pipe (7) and the part upper outside (1) of the cartridge (2) has hexagonal shape for facilitate the tightening of said pipe (7). The sleeve absorbs the thermal expansion between the pipes (7, 8).

O-rings (9) and screws (5) are existing parts in the market.

It can be applied both in water installations Domestic drinking as in heating installations.

Mounting

To mount the Pipe Joint Sleeve for absorb thermal expansion and avoid electrolysis.

The end of the pipe (8) will be introduced in the stop guide (4), then the slide (3) will be welded to the end of the copper pipe (8) then you will have to incorporate the two o-rings (9). The slide (3) will be introduced by the bottom of the cartridge (2) with the two o-rings (9) already placed on the slide (3) so that they exert adequate pressure on the inner wall of the tube that forms the cartridge (2) and for thus avoid water leaks, and at the same time avoid contact between copper and iron so that electrolysis does not occur,  while facilitating thermal expansion between the pipes (7 and 8).

To end the stop guide (4), enter at the bottom of the cartridge (2), in the position shown three screws (5), which will definitely hold the stop guide (4) to the cartridge (2) preventing the slide (3) from being welded to the pipe (8) can get out.

Claims (1)

1. Tube connection sleeve to absorb thermal expansion and prevent electrolysis, applicable both in domestic drinking water installations and in heating installations, characterized in that it comprises the following parts made of brass: a hollow cylindrical cartridge (2) in whose interior is inserted a cylindrical and hollow slide (3) that is welded at one of its ends to a first pipe (8) and incorporates two o-rings (9) to prevent water leaks and contact between the different pipes (7 , 8) and a stop guide (4) located in the lower part of the cartridge (2) that prevents the slide from being able to exit by means of screws (5) that fix the stop guide (4) to the cartridge (2) through the holes (6) of the cartridge (2). The upper inner part of the cartridge (2) incorporates a female thread for connection with the second pipe (7) and the upper outer part (1) of the cartridge (2) is shaped hexagonal to facilitate the tightening of said pipe (7). He sleeve absorbs thermal expansion between pipes (7, 8).