The invention relates to an arrangement for mounting a nozzle over a hole in a pipe, wherein the nozzle with a nozzle body is fixed to the pipe by means of a holder, and wherein deformations are provided on the surface of the pipe which are adapted to engage complementary beads provided on a locating part which partly encloses the pipe, and wherein the deformations are formed by at least one deformation on the surface of the pipe which is provided at a distance from the hole.

Nozzles of the above-mentioned type are used mainly for cooling the air in a stable compartment, where water is atomized and is spread in the stable compartment. The nozzles are connected with a pipe system consisting of thin stainless pipes.

Depending on the layout of the individual stable, the number and the positions of the nozzles are to be determined individually and can frequently only be determined when the entire pipe system has been constructed. Therefore, it is desirable to be able to mount the nozzles on predetermined locations when the entire pipe system has been assembled.

WO 01/79741 A1 discloses an arrangement of the type defined in the introductory portion of claim 1. In this known arrangement, a tool is used for perforating the pipe wall, and at the same time an annular facet area around the perforation is formed, following which a nozzle-carrying coupling part with engagement faces corresponding to those provided on the pipe wall is mounted on the pipe.

The arrangement requires great accuracy in the formation of the facet area which merges into the perforation on the pipe, as the facet area and the perforation are to seal against the engagement faces of the nozzle-carrying

coupling part, which cannot be fixed independently against the pipe, but are "snapped" into position.

An arrangement for use in the mounting of a nozzle around a hole of the type defined in the introductory portion of claim 1 is known from US Patent

Application No. 2003/0226412 A1. In this known arrangement, a locating part is clamped against a gasket by means of a clamping strap arranged around the pipe, following which the nozzle may be mounted in the holder.

The mounting of the locating part includes several time-consuming working operations, including a great deal of screw work.

Accordingly, an object of the invention is to provide a more rapid, stable and flexible as well as accurate arrangement for the mounting of a locating part on a pipe on which nozzles are to be mounted.

The object of the invention is achieved by an arrangement of the type defined in the introductory portion of claim 1 , which is characterized in that there are two deformations and two beads, said deformations and said beads, respectively, having a mutual distance of 180°, or that the mutual distance is greater than 180°.

Rapid and reliable mounting of the locating part against the pipe is ensured in this manner merely by snapping it against the pipe.

When, as stated in claim 2, the locating part is configured as a gasket bearing which has a hole to receive a plastics part, said plastics part and said gasket bearing being positioned at the hole in the pipe, and the gasket bearing with plastics part is clamped together by the holder, an O-ring being arranged on both sides of the plastics part, where the one O-ring engages the pipe, while the other O-ring engages the nozzle body, a strong seal is ensured between the plastics part and the hole in the pipe, as the nozzles

are tightened safely and tightly by traditional tightening means.

Expediently, as stated in claim 3, the deformations are configured as recesses on the pipe in the vicinity of the hole, and the complementary beads in the gasket bearing are configured as rocker pawls.

To ensure a strong seal of the nozzle against the pipe, it is advantageous if, as stated in claim 4, the holder is formed by a clamp which partly encloses the pipe, and that the clamp by means of hooks extends into recesses in a bearing, and that the gasket bearing, the plastics part and the O-rings are disposed between the clamp and the nozzle body.

Expediently, as stated in claim 5, the clamp is tightened against the bearing by means of the body of the nozzle which is terminated with a hexagon, which provides a simple way of tightening and thereby sealing the nozzle relative to the pipe.

The invention will now be explained more fully with reference to the drawing, in which

fig. 1 shows the arrangement according to the invention in an assembled state,

fig. 2 shows the arrangement of fig. 1 in an exploded view,

fig. 3 shows the arrangement of fig. 1 seen from below, while

fig. 4 shows a single part of the arrangement of fig. 3.

In figs. 1 and 2, the numeral 1 designates a sublength of a pipe which extends e.g. in a stable compartment. The pipe must be a thin stainless pipe

to which a plurality of atomizer nozzles are mounted, as will be explained later.

As will be seen, deformations designated 2 and 3 are provided on the pipe 1. These deformations may be configured as centre bulges which are disposed on the pipe at an angle of 180°. Although two deformations are shown here, nothing prevents the provision of one, three or more.

The numeral 4 designates a hole in the pipe which is intended to be con- nected with a nozzle in the form of an atomizer nozzle. This nozzle consists of a nozzle body 16 which is terminated with a hexagon 17. A through hole 18, which is to be connected with the hole 4 in the pipe 1 according to the invention, is provided centrally in the nozzle.

The numeral 5 designates a gasket bearing with a hole 8 into which a plasties part 9 may be inserted. As will be seen, the plasties part is configured with a four-sided external shape, so that it fits the hole 8 in the gasket bearing 5. Further, an O-ring (not shown) is disposed on each side of the plasties part, said O-ring sealing against the pipe 1 and the nozzle body 16.

Beads or rocker pawls are provided on each side of the upper part of the gasket bearing and are adapted to engage the deformations 2, 3 on the pipe 1 , as will be explained later.

The numeral 10 designates a clamp which upwardly has the same curvature as the pipe 1. The clamp 10 is terminated downwardly by hooks 11 , 12 which are adapted to engage recesses 13, 14, cf. figs. 3 and 4, on a bearing 15.

In addition, threads are provided upwardly on the nozzle body 16 which may be screwed into threads in the bearing 15. These threads, however,

are not shown in the figures.

Finally, the numeral 19 designates a holding means which is adapted to hold the pipe 1 and be fixed against a ceiling or a wall.

In practice, several holdings means are used, of course, in the construction of a pipe system proper.

The arrangement, which is explained above, is used in the following man- ner:

First, the locations on the pipe or the pipe system, which are suspended by the holding means 19, with which a nozzle is to be connected, are determined. Then, a hole is drilled or punched in the pipe, and deformations are provided around the hole.

The hole and the deformations may be provided by using a special tool ensuring that the positions of the deformations and the hole are accurate relative to each other.

Then, the gasket bearing 5 is snapped onto the pipe 1 , so that the beads 6, 7 extend into the deformations 2, 3, and so that the hole 4 is flush with the hole in the gasket bearing.

The clamp 10 is now passed down over the pipe 1 , and the hooks 11 , 12 are caused to engage the recesses on the bearing 15. The plastics part 9 is hereby mounted in the gasket bearing 5 at the hole 4 in the pipe 1.

Finally, the nozzle body 16 is screwed into the bearing 15, whereby the plastics part 9 with O-rings form a tight connection between the hole in the nozzle body 16 and the hole 4 in the pipe.