Fabrication of a Recuperative Heat Exchanger for the Foundry Industry

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Fabrication of a Recuperative Heat Exchanger

Maumee Valley Fabricators completed this custom plate rolling and fabrication project for our customer in the foundry industry. This recuperative heat exchanger is 66" in diameter and 52' long. It is used to capture exhaust gas exiting the foundry and utilizes the residual heat in the gas to preheat the combustion air, providing the foundry with a fuel savings of up to 30%. The heat exchanger was fabricated from a combination of stainless steels. The outer shell was rolled to the desired diameter while the inner components were formed on our press brake.

After fabricating the individual components, both TIG and MIG welding were used to complete the entire heat exchanger assembly. Fabrication tolerances on this one of a kind heat exchanger were ±1/8". After welding, the heat exchanger was tested using radiographic examination to verify the quality of the welds. The lead time on a project of this scale is 14-20 weeks. For more information about this custom plate rolling and fabrication project, see the table below, or contact us directly.

Fabrication of a Recuperative Heat Exchanger - Project Highlights