DE2840746C3 - Double tube crossing - Google Patents

Description

The invention relates to a double pipe crossing piece with separate inlet and outlet channels, in particular for Radiator, riser and the like connections.

In practice, the procedure so far has been to use an inclined fitting and a subsequent one bent pipe end part of the crossing pipe (inlet or outlet) without any point of contact has bypassed. As a result, it was necessary for the installer to adjust this pipe end accordingly to bend the existing conditions. The pipe crossing pieces still used are solid and resemble a Kaisten with separate channels (AT-PS 2 22 853). This box but requires a lot of space and is therefore not suitable for narrow pipe laying. Handling too is awkward.

The object of the invention is to design a double pipe crossing piece of the type mentioned at the outset in such a way that that a simple, tensile and space-saving assembly is possible.

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45 This object is achieved according to the invention by the solution given in the characterizing part of patent claim 1.

Advantageous refinements result from the subclaims.

In the solution according to the invention 4 short pieces of pipe are used with Endpreßfittings, which are attached to the Crossing points have nested flats and there with each other z. B. by soldering or Welding or otherwise connected in a suitable manner. This enables a tight pipe guide, without the need to add the pipes to be connected, possibly due to the location to provide given pipe bends with curvatures. The pipe crossing piece is also designed in such a way that that there are already the usual and necessary distances z. 3. Fulfilled in heating So it is for the Installer no longer required to adjust pipes unnecessarily and to apply extensive assemblies. The design of the ends as press fitting connections also makes assembly easier, since now only the pipes still need to be deburred and pushed into the connection. With a The fitting connection is then made using suitable crimping pliers. It has been shown that the fitting connection withstands high loads, which are significantly higher than those occurring in actual operation.

This solution is therefore also much more advantageous than the connection known from DE-Gbm 19 74 386.

The drawings show a possible embodiment of a double pipe crossing with a press fitting connection shown schematically. It shows

F i g. 1 is a plan view of a double pipe intersection.

F i g. 2 a section through the return.

F i g. 3 a section through the inlet.

As in Fig. 1, the double pipe crossing consists of four pipes 1, 2, 3 which cross each other in pairs and 4, which have the press fitting connection at their ends 5. The pipes 1 and 2 are used for the inlet, the Pipes 3 and 4 to the return.

As shown in FIGS. 2 and 3, the tubes 1, 2, 3 and 4 are flattened at the contact points 6, the tubes 3 and 4 at 7 and the tubes 1 and 2 at 8 are perforated. The joining of the pipes 1, 2,3 and 4 to the double pipe crossing can be done by soldering or the like.

1 sheet of drawings

Claims (3)

Patent claims: 1. Double pipe crossing piece with separate inlet and outlet channels, especially for radiator, Riser and the like connections, characterized in that there are 4 to each other the crossing points by soldering, welding or similar pipe fittings (1 to 4) exists, which fit into one another at the crossing points Flattened areas (6), the flattened area (6) for the inlet at (8) and for the return at (7) is broken Z double pipe crossing piece according to claim 1, characterized in that the pipes (1 and 3) have a smaller diameter than the tubes (2 and 4). 3. Double pipe crossing piece according to claims 1 and 2, characterized in that the Pipes (1-4) are widened at their ends by a wall thickness of the pipes to form sleeves.