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Threeway Steel - Model SSAW -Spiral Steel Pipe
Spiral welded pipe(SSAW pipe, also called HSAW pipe). The pipe is formed by spiral submerged arc welding technology. Spiral welded pipes are formed using narrower plates or hot rolled coils, which lowers their production costs significantly. The welding line shape like a helix. The spiral welding process permits the production of large-diameter pipes suitable for transporting large volumes of oil and gas. Some SSAW pipes were historically limited to low-pressure applications.
Spiral-welded pipe is manufactured from coils of steel that are unwound and flattened. The flattened strip is formed by right-angle rollers into a cylinder of the desired diameter.
The weld is welded under powder coating. This process is also known as Submerged Arc Welding (SAW). At the end of the spiral, a new spiral is welded to the back edge of the pipe, creating a cross seam. The pipe is cut to length and the ends are beveled if necessary.
Spiral pipe manufacturing has come a long way in recent decades. Cold bending of a spiral pipe was very difficult in the past, but thanks to better manufacturing processes, it can be bent even easier than a steel pipe with a straight weld seam.
Spiral pipes also have close tolerances on the outside diameter and are to weld as ordinary steel pipes. Spiral pipes, like ordinary pipes, can be coated and lined without difficulty.
This type of pipe is used in large pipeline systems around the world, and thanks to the spiral structure of the pipe, spiral pipe also has the most favorable properties for stopping a running crack. Because of these advantages, spiral welded pipe is used in a wide range of applications.
- Water supply engineering
- Petrochemical industry
- Chemical industry
- Electric power industry
- Agricultural irrigation
- Urban construction.
- Water supply and drainage.
- Gas transport
- Structure construction