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Testing Your Metal Expansion Joints

When you use metal expansion joints in your piping and other systems, it is important to understand the testing process in order to ensure that your bellow expansion joint is up to code. The American Society of Mechanical Engineers code for expansion joints or ASME Code Expansion Joint strengthens those standards set by the Expansion Joint Manufacturers Association (EJMA), a trade group that establishes industry-wide standards for the use of expansion joints, such as those produced by bellow expansion joint manufacturers.

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