It is possible to reduce transportation and construction costs through compactification!
The 3DR elbow is a type of pipe fitting that is often used in gas pipelines. It is primarily manufactured through high-frequency bending, which requires an extra length of 1OD (1 outer diameter) as a gripping area during the manufacturing process. However, this extra length can make transportation cumbersome. Additionally, when buried, the extra length necessitates deeper excavation during construction, increasing the labor involved, including handling. Since many products are used for mainline applications, the impact on costs is significant. However, if manufactured using the mandrel method, the absence of extra length improves loading efficiency onto trucks and eliminates the need for deeper excavation during underground installation in local pipelines, making construction easier. Furthermore, the wall thickness of the bent section is nearly uniform, and the entire elbow undergoes heat treatment, resulting in consistent mechanical properties and high quality, with no discontinuities in wall thickness, making it safe for use in high-pressure pipeline mainlines. At Benkan Kiko, we offer 3DR elbows manufactured using the mandrel bending method. We can provide cost-benefit analyses, so please feel free to consult with us.
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basic information
The product lineup is as follows: 1. API 5LX60 500A x 90° 45° 30° 22.5° 11.25° 3DR mandrel elbow (bend radius = 1524mm) 2. API 5LX60 400A x 90° 45° 30° 22.5° 11.25° 3DR mandrel elbow (bend radius = 1219.2mm) We will handle material procurement, so material supply is not required. Additionally, other materials can also be manufactured.
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Applications/Examples of results
It has been adopted for the bending sections of high-pressure pipeline main lines in large-scale domestic natural gas pipeline projects (long-distance pipelines), and contractors have expressed that "the work is easier compared to conventional construction!" and "the quality is good and reliable." We have also received similarly high evaluations from gas companies.
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From residential water supply and hot water piping to massive pipelines in large-scale plants, piping that supports daily life is spread all over the world. Benkan Kiko Co., Ltd. is involved in the manufacturing of welded pipe fittings, which are essential piping components. We provide optimal products tailored to the piping environment (design, usage conditions, etc.) and construction circumstances, not only for general building water supply and hot water piping but also for power plants, gas plants, refineries, oil and chemical plants, shipbuilding, and more, where strict quality standards are required.