Piping prefab and welded structures

basic information

A welded pipe fitting is a product used to extend, change the direction, branch, or change the diameter of piping by joining it with piping materials such as pipes, and it is connected by welding by the customer after delivery. However, in cases where the piping has high specifications due to regulations (such as the Electric Utility Industry Law and the Gas Utility Industry Law), managing everything from material procurement, welding work, quality inspection, to the preparation of various documents is not easy. Furthermore, when welding on-site, it is not uncommon for the working environment to be unsuitable or for there to be no equipment to verify the quality of the weld. For customers in such situations, we propose "piping prefabrication" and "welded structures." Piping prefabrication requires extensive management, including the procurement of welded pipe fittings and pipes, construction methods for welding, quality inspection, and application processes. When it comes to piping specified by regulations, even stricter management is necessary. In contrast, if you request "piping prefabrication" and "welded structures" from Benkan Kiko, which has extensive experience in delivering regulated piping and is well-versed in its specifications and inspection requirements, it is possible to centralize that management. For customers, this can lead to significant benefits through improved operational efficiency and cost reduction.

Price range

Delivery Time

Applications/Examples of results

For example, when assembling piping according to the Electric Utility Industry Law, the welding work between components must be performed using welding methods that comply with the Electric Utility Industry Law. When manufacturing large-diameter pipes and fittings, construction methods in accordance with the Electric Utility Industry Law are also required, and it is necessary to place orders with contractors that have obtained these construction methods. However, if it is possible to entrust pipe and fitting manufacturing and prefabrication work to a single company, it becomes possible to centralize all necessary regulatory-related planning documents, inspection applications, and management and inquiry contact points. Additionally, it is possible to reduce the number of pressure tests required by regulations, which can also lead to cost savings.

Detailed information

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  Steam manifold for geothermal power plants with protective bolts for moisture-retaining nuts after painting. [Case Study] Steam manifold for geothermal power plants http://benkankikoh.com/blog/2016/07/04/case-study

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  Header pipe This is a prefabricated header pipe for geothermal power plants. The longitudinal welding of the pipe is also performed by Benkan Kiko in accordance with the welding construction methods of the Electric Utility Industry Law.

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  Short pipe with reducer TEE This is a prefabricated product for electric power companies. Even the short pipe sections that are difficult to procure due to electrical construction methods can be manufactured in-house by Benkan Kiko to meet your needs.

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  Bar-sleeved TEE This is designed for gas companies and is equipped with a bar for guiding sleeve pipes and pipeline pigs. A pipeline pig is a device primarily used for cleaning by passing through the pipeline under pressure.

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  Pipe with nozzle attached TEE This is for gas companies, and we prefabricate the nozzle pipe from the branching part of the TEE. We are entrusted with the management, including special coating on both the inner and outer surfaces.