Expansion Joints Blog

Content for the expansion joints blog will include updates to the Ducting Systems and Piping Systems Technical Handbooks, how-to examples for joint selection, maintenance, usage, storage, testing, and when and why you would require an expansion joint in your piping & ducting system.
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A User’s Guide to Expansion Joint Control Units

It is no secret that one of the greatest demands for an expansion joint is the expectation to serve a long, leak-free life with little to no maintenance. Once installed, these flexible rubber connectors should require little attention. The preservation of this investment (and one’s sanity) can be maximized with an in-depth overview of how control units can prevent a new expansion joint from being overstressed.

The purpose of a control unit is to act as a safety device against excessive movement resulting from pressure thrust. A typical control unit assembly is comprised of threaded rods, steel gusset plates, nuts and washers.

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