Insert for pipelines, especially freshwater pipelines, running through road foundations comprises a mechanism that interacts with a status indicator so that exclusively two opening states of an underground blocking element are displayed

摘要

Insert for pipelines, especially freshwater pipelines, running through road foundations comprises a status indicator (2) displaying the opening state of an underground blocking element. The insert also has a mechanism that interacts with the status indicator so that exclusively the two opening states "open" and "closed" of the blocking element are displayed. Preferred Features: The status indicator is formed by a one- or two-part flap (28) provided with markings symbolizing the opening state of the pipeline.