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What is a "union"?

Explaining the structure that makes maintenance easier and the importance of gaskets and tape in preventing leaks!

In piping work, fittings that are always installed with future maintenance in mind are called "unions." Unlike regular fittings that "cannot be removed without cutting once connected," unions have the significant advantage of being "removable at any time." In this article, we will explain the mechanism of unions, the correct installation methods, and the importance of "gaskets" and "seal tape" in preventing leaks. *For detailed content of the column, please refer to the related links. For more information, feel free to download the PDF or contact us.

Related Link - https://www.daiko-jp.com/media/useful/a255

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Daiko is a manufacturer specialized in processing various industrial products, including gaskets and packing. With industry-leading processing equipment, including one of Japan's largest water jet cutting machines, and a wide range of materials such as joint sheets, rubber, resin, and metal, we meet our customers' diverse needs. Leveraging the technology and experience we have cultivated over 50 years, we provide high-quality, short-lead-time, and low-cost products to contribute to solving our customers' challenges. To respond to our customers' varied needs, Daiko's production bases are equipped with various processing facilities. Among them, the water jet cutting machines, with a total of four installed at our Osaka headquarters and Tokyo branch, boast one of the largest scales in the country. The maximum processing range is W4,000 × L5,500 mm, allowing for the high-precision manufacturing of large-diameter gaskets and packing. By maximizing material efficiency, we achieve the provision of 'high quality at low cost.'