Plug-in connection system for fluid-conducting components, in particular of fire extinguishing systems, and component parts of said connection system

1. A plug-in connection system for fluid-conducting components of fire extinguishing systems, comprising:

a first component,

a second component, wherein the first and the second component can be plugged into one another,

a locking element that secures the first and the second component to one another when the components are fully plugged into one another, and

a corresponding positioning element for unique alignment of the components with each other is formed on each of the first and second components,

wherein the corresponding positioning element of one of the first and second components comprises a recess formed on a front side of the one of the first and second components, wherein a ring comprises the recess, wherein the ring can be rotated around the one of the first and second components, and

wherein the corresponding positioning element of the other of the first and second components comprises a corresponding protrusion provided on a front side of the other of the first and second components.

2. The plug-in connection system according to claim 1 ,

wherein the first component comprises an outer peripheral surface and a first recess in the peripheral surface, and the second component comprises an inner peripheral surface and a second recess in the inner peripheral surface, wherein, when the components are fully plugged into one another, the recesses lie opposite one another and define a locking element channel, wherein the locking element which, when the components are fully plugged into one another, can be inserted into the locking element channel until an interlock position is reached and at least part of the locking element engages in both recesses in the interlock position, and

wherein the plug-in connection system further comprises a locking element safety device for reversibly releasably securing the locking element on the first and/or second component.

3. The plug-in connection system according to claim 1 , wherein the corresponding positioning elements are arranged in such a way that the first and second components are unable to be fully plugged in until the positioning elements engage in each other.

4. The plug-in connection system according to claim 3 , wherein one or both of the positioning elements have insertion bevels.

5. The plug-in connection system according to claim 4 , wherein the first and the second component are each selected from the list: pipes, end caps, valves, or fluid-conducting flow elements.

6. The plug-in connection system according to claim 4 , wherein the insertion bevels are formed on the ring at sides of the recess.

7. The plug-in connection system according to claim 6 , wherein the insertion bevels are formed on the protrusion.

8. The plug-in connection system according to claim 3 , wherein the ring is clipped onto the one of the first and second components.

9. The plug-in connection system according to claim 3 , wherein the ring encircles a portion of the one of the first and second components to form the recess.

10. The plug-in connection system according to claim 2 , wherein the locking element is embodied as an interlock chain having a plurality of chain links.

11. The plug-in connection system according to claim 3 , wherein a first mark is arranged on the corresponding positioning element of the one of the first and second components and a second mark is arranged on the corresponding positioning element of the other of the first and second components, wherein the first mark and second mark are aligned when the components are fully plugged into one another.

12. The plug-in connection system according to claim 11 , wherein the ring comprises the first mark and the protrusion comprises the second mark.