https://www.ness.de/wp-content/uploads/2022/11/slider-Eingeschlossenes-thermaloel.jpg7002200J. Ohrmanhttps://www.ness.de/wp-content/uploads/2018/06/ness_logo_web-01.pngJ. Ohrman2022-11-08 15:10:232022-11-08 15:14:16Avoidance of excessive pressure rises of trapped thermal oil or water in pipelines