We can respond to the special shapes of welded pipe fittings used in boiler applications with high technical skill!
It is a joint that makes one think of a sculpture, finished to an impressive degree. This is made by "machining," which involves cutting from forged material rather than plastic processing. Among the welded pipe joints used in boiler-related applications at thermal power plants, there are products with large and special shapes that cannot be made through plastic processing (stretching, compressing, bending, or drawing steel materials). For such requests, we manufacture by cutting from forged material instead of using standard plastic processing. In terms of shape, there are mainly Y-PIECES that branch at the same angle from one direction, laterals that branch at an angle like a single branch from one direction, and T-PIECES that branch in a T shape. The diameters primarily range from 400 to 800 mm, with some larger ones weighing around 10 tons. Since these products are used under extremely harsh conditions, the specifications include strict component regulations for the materials used and heat treatment conditions based on the technical standards for power generation thermal equipment. We not only ensure that the shape is correct but also conduct UT tests on the materials, tensile tests on the products, impact tests, hardness tests, and penetration tests, and only provide the final product after all these tests are cleared.
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basic information
The joints made of forged steel used in thermal power plants serve the purpose of branching (and sometimes merging) the flow of high-pressure steam (main steam, high-temperature reheated steam, etc.) at temperatures close to 600°C, heated in the boiler. At Benkan Kiko, we have challenged ourselves to manufacture various products with the technical expertise we have cultivated over many years, making it possible to do so. We have a proven track record of producing many difficult forged products. With our diverse capabilities, we assist our customers in reducing costs for their plant piping.
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Applications/Examples of results
We have a track record of deliveries in various fields, including thermal power plants, nuclear power, petrochemical plants, LNG plants, gas pipelines and stations, shipbuilding plants, and others.
Detailed information
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Y-PIECE SFVAF22A 600Ax500A 32.0T/27.0T This is a forged steel Y-PIECE for power plants.
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It is a T-PIECE. It is used in the boiler of a thermal power plant in a certain location in Japan.
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It is a T-PIECE. The length on both sides is 2300mm.
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Company information
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.