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EP-4741696-A1 - INSTALLATION FITTING

EP4741696A1EP 4741696 A1EP4741696 A1EP 4741696A1EP-4741696-A1

Abstract

Fitting (1) for installing screw-in connections (6), preferably sensors with threads, in a pipeline, comprising an outer diameter (2), an inner diameter (3), a length (4) and a longitudinal axis (5), wherein the fitting (1) is made of plastic and is designed as an injection-molded part, wherein several eyes (7) are arranged on the outer circumference (2), wherein the eyes (7) each have a central axis (8) that is directed perpendicular to the longitudinal axis (5).

Inventors

  • GRAF, MARCEL
  • RÖSCH, Jürgen
  • BRUGGER, FLORIAN
  • SCHIEFER, CHRISTIAN
  • Atzenhofer, Katja

Assignees

  • Georg Fischer Rohrleitungssysteme AG

Dates

Publication Date
20260513
Application Date
20241112

Claims (10)

  1. Fitting (1) for installing screw-in connections (6), preferably sensors with threads, in a pipeline, comprising an outer diameter (2), an inner diameter (3), a length (4) and a longitudinal axis (5), wherein the fitting (1) is made of plastic and is designed as an injection-molded part, characterized in that several eyes (7) are arranged on the outer circumference (2), wherein the eyes (7) each have a central axis (8) which is directed perpendicular to the longitudinal axis (5).
  2. Fitting (1) according to claim 1, characterized in that the eyes (7) have a round base surface (9) arranged at right angles to the central axis (5).
  3. Fitting (1) according to claim 1 or 2, characterized in that the eye (7) extends cylindrically or conically along the central axis (8).
  4. Fitting (1) according to one of claims 1 or 3, characterized in that the eyes (7) have a central blind hole bore (10).
  5. Fitting (1) according to one of claims 1 to 4, characterized in that more than two eyes (7) are arranged on the fitting (1).
  6. Fitting (1) according to one of claims 1 to 5, characterized in that four eyes (7) are arranged regularly distributed around the outer circumference.
  7. Fitting (1) according to one of claims 1 to 6, characterized in that the eyes (7) are located on a plane perpendicular to the longitudinal axis (5).
  8. Fitting (1) according to one of claims 1 to 7, characterized in that a bridge extending along the outer circumference (2) between the eyes (7) is arranged.
  9. Fitting (1) according to one of claims 1 to 8, characterized in that the fitting (1) is made of one of the plastics PEEK, PVDF, ECTFE, PVC, PP, PE or Peek.
  10. Fitting (1) according to one of claims 1 to 9, characterized in that the eyes (7) are arranged in the middle of the length (4) of the fitting (1).

Description

The invention relates to a fitting for installing screw-in connections, preferably sensors with threads, in a pipeline, comprising an outer diameter, an inner diameter, a length and a longitudinal axis, wherein the fitting is made of plastic and is designed as an injection-molded part. To install threaded sensors in a pipeline, a hole is usually drilled into the existing pipe, into which an outlet fitting is inserted, giving the sensor direct access to the medium. A disadvantage of this method is that installing such outlet fittings is often not possible with thin-walled pipes. Therefore, a fitting with increased wall thickness is typically installed in the existing pipeline to allow for the installation of an outlet fitting. In the DE 10 2013 015 038 A1 A measuring tube for a flow meter is disclosed, in which the branch pipe is attached to the pipeline. A disadvantage of this design is that the pipeline must have a certain wall thickness to ensure the branch pipe can be securely attached. The utility model DE 20 2005 013 904 U1 The invention discloses a pipe with a sensor adapter that is attached to the pipe by means of a bayonet fitting, into which a sensor is then inserted. A disadvantage of this is that only one sensor adapter can be positioned at any one location on the pipe, and no further sensors can be arranged along the same length of the pipe's circumference. The object of the invention is to provide a fitting that makes it possible to attach several connections for e.g. sensors at one point or along a length of the pipeline, which can also be mounted easily and precisely on the fitting. This problem is solved according to the invention by arranging several eyes on the outer circumference, each eye having a central axis that is directed perpendicular to the longitudinal axis. The fitting according to the invention, for installing connections, preferably sensors, in a pipeline, comprises an outer diameter, an inner diameter, a length, and a longitudinal axis. The fitting is made of plastic and is injection-molded, allowing for high-volume production. Several openings are arranged around the outer circumference, each opening having a central axis perpendicular to the longitudinal axis. These openings accommodate connections, preferably sensors, which then protrude into the pipeline and measure the desired properties of the medium. It is advantageous if the eyes have a round base arranged at right angles to the central axis. This provides a good contact surface for the screw-in connector or sensor. It is also advantageous if all eyes on the fitting have the same dimensions. It is advantageous if the eyes extend cylindrically or conically along the central axis. The eyes project beyond the outer diameter of the fitting. Preferably, the eyes have a central bore. The bore is preferably designed as a blind hole and does not protrude through the wall of the fitting. Preferably, a knurled area at the bottom of the blind hole serves as a pre-centering feature, by means of which, when inserting a connector or sensor, the bore is drilled completely through and the connector or sensor is positioned within it. It has proven preferable to have more than two eyes on the fitting. This has the advantage that only one fitting needs to be installed in the pipeline, and several sensor connection options are available. It is advantageous if four eyes are arranged regularly spaced around the outer circumference. This means that the eyes are preferably arranged at 90° intervals around the longitudinal axis or outer circumference and are located at the same height along the longitudinal axis of the fitting. It has proven advantageous if the eyes are positioned in a plane perpendicular to the longitudinal axis. This allows for the installation of several, preferably four, sensors even in confined spaces. Preferably, a circumferential ridge is arranged around the outer circumference between the eyes. This serves to stabilize the eyes on the fitting. It has proven preferable if the fitting is made from one of the following plastics: PEEK, PVDF, ECTFE, PVC, PP, PE or Peek. It is advantageous if the eyes are positioned in the middle of the fitting's length. This ensures the best possible access for mounting the connections or sensors once the fitting is installed in the pipeline. All design options can be freely combined with each other. An embodiment of the invention is described with reference to the figures, although the invention is not limited to this embodiment. The figures show: Fig. 1 a three-dimensional representation of the inventive fitting, Fig. 2 a longitudinal section through a fitting according to the invention. Fig. 3 a side view of a fitting according to the invention with a built-in sensor. The in Fig. 1 The drawing shows a fitting 1 according to the invention for installing sensors 6 in a pipeline. The fitting 1 has an outer diameter 2, an inner diameter 3, and a length 4. Several eyes 7 for receiving the se