Steel sewers

Steel sewers contain steel pipes. These pipes are fabricated by riveting or wielding the edges and either rolling the soft steel plates to the desired diameter. Due to the fact that wielded pipes are much stronger and smoother than the riveted pipes, therefore commonly wielded pipes are used.

Welded Steel pipes are available in different lengths up to 12 m and they are manufactured with internal diameters varying within a range of 150 mm to 900 mm. Although, welded pipes are also manufactured with an internal diameter of up to 24000 mm. The Indian standard IS: 3589-1991 provides the detailed and brief specifications of the electrically welded steel pipes.

In comparison with iron pipes, steel pipes can bear vibrations and impact load much better than cast-iron pipes. In addition, steel pipes have high ductility and can bear higher water hammer pressures. The main disadvantage of steel pipes is that they cannot bear high external loads. Also, there is a huge possibility that it will get collapsed if high negative pressure is applied to it. At sewerex.com, one can find the denver drain cleaning company and book the sewer line replacement denver service.

Steel pipes are not that much resistant to corrosion, and they become suspect to various types of corrosion. Therefore, it is not advisable to use steel pipes in partially full sewers. Before fixing the steel pipes, there has to be a thorough soil analysis all along the area where steel pipes are going to be laid down. There has to be a security layer that saves the steel pipes from corrosion both internally and externally.

To save the steel pipes from corrosion, pipes can be galvanized or we can simply coat the internal and externally of the pipes with the bituminous material or maybe lined with cement mortar. We can also protect the steel pipes by cementing plasticized polyvinyl chlorides sheets to the pipes.

Welded joints and mechanical joints are used to are used to join and connect steel pipes.

The steel pipes are quite expensive and therefore they are not that much commonly used in sewers. But although, steel pipes are preferred where situations are like bridge crossings, pressure sewer mains, self-supporting spans, underwater river crossings, necessary connections for pumping stations, and railway crossing.

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