Weird Loops in Pipes - What are They? What are They For?

Описание: Have you ever seen a pipe that turns laterally but again loops back to its original direction without really going anywhere? Why does it have to loop, instead of just going straight?

This video explains what it is and why it has to be there.

Image Links:

1. Weird pipe @ Quai de l'Île @ Genève, by Guilhem Vellut of Annecy, France.
https://commons.wikimedia.org/wiki/Fi...

2. Video by Ketot Subiyanto:
https://www.pexels.com/video/a-man-wi...

3. Team pipelines leading from a steamfield near Lake Taupo to the geothermal power plant at Wairakei, Region of Waikato, New Zealand. Photo taken from the bridge carrying State Highway 1 over the pipeline stretch, by Ingolfson, https://commons.wikimedia.org/wiki/Fi...

4. Pipeline in Jyväskylä, by Tiia Monto, https://commons.wikimedia.org/wiki/Fi...

5. Steam pipelines leading from steamfield towards Wairakei geothermal power station near Taupo, by Pseudopanax, https://commons.wikimedia.org/wiki/Fi...

6. Gelsenkirchen-Erle, pipeline along the Emscher, by Michielverbeek, https://commons.wikimedia.org/wiki/Fi...

7. Pipelines in ditch, Madách Street houses and water tower, Újváros neighborhood, Százhalombatta, Pest County, Hungary, by Globetrotter19, https://commons.wikimedia.org/wiki/Fi...

8. Pipelines Running parallel to the railway, seen on the left. The larger one says "pumped sewage" on it! The loop on the smaller right hand one is to allow for expansion, by Mick Garratt,
https://commons.wikimedia.org/wiki/Fi...

9. Expansion Loop in Pipeline, by Mick Garratt,
https://commons.wikimedia.org/wiki/Fi...

10. Heating pipeline at Objazdowa Street in Kłodzko, by Jacek Halicki, https://commons.wikimedia.org/wiki/Fi...

11. Heating pipeline at Objazdowa Street in Kłodzko, by Jacek Halicki, https://commons.wikimedia.org/wiki/Fi...

12. Google Earth, https://earth.google.com/web/@29.8303...