Bilder
Inspection of the welded pipes with automatic ultrasonic equipment
The Nord Stream pipeline will be made up of high-quality steel pipes with walls ranging in thickness from 41 mm to 27 mm as the pressure drops along the route. Pipes are coated internally with anti-friction coating and externally with an anti-corrosive and weight coating. From inland storage, the pipes will be taken by pipe carrier to a large pipe-laying vessel, where they will be inspected for possible transport damage.
In a "double-joint welding station", two 12 m pipes will be welded together to a 24 m "double joint", with a welding pass from both inside and outside. Upon completion, the joint will be inspected by ultrasonic testing to identify possible welding defects. Good welds will be covered with an anti-corrosion coating and the double joint lowered to the seabed in a continuous line by pulling the pipe-laying vessel 24 m forward while the pipeline sections are kept under tension over the stinger.
Downloads
| Dateityp | Auflösung | Dateigröße | Bildgröße | Farbraum | |
| JPG | 300 dpi | 6.4 MB | 2240 px × 1680 px | CMYK | Download |
| JPG | 300 dpi | 2.1 MB | 2240 px × 1680 px | RGB | Download |
| JPG | 72 dpi | 1.0 MB | 1400 px × 1050 px | RGB | Download |
Nutzung mit Quellenvermerk (Nord Stream AG) für redaktionelle Beiträge über Nord Stream gestattet.
