How Expansion Joints Work

Category: Expansion Joints

Getting to know how expansion joints work can help you determine which expansion joint material will work best for your specific needs. At Flextech Industries, we understand how important it is to have the right expansion joint for the job. That is why we offer a selection of expansion joints, as well as engineering and design services for tailoring expansion joints to meet your exact requirements.

What Are Expansion Joints Used For?

Expansion joints are commonly installed in industrial piping systems to help relieve anchor stress, reduce noise, compensate for misalignment, and absorb vibrations and shock. In some cases, expansion joints can also be designed to allow for thermal expansion in extremely hot applications.

Types of Expansion Joints and How They Work

Depending on the type of material the expansion joint is made from, it can allow the pipe to move in three different ways: axial compression or extension, lateral offset, and angular deflection. Some of the different materials expansion joints can be made from and how they work include:

Metal Expansion Joints

Most commonly used in applications where thermal expansion is an issue, metal expansion joints are designed to compress, compensating for any movement in the pipe. Through compressing to handle expanding hot pipes, the metal expansion joint can take stress off of the anchors and pipe, preventing ruptures.

Rubber Expansion Joints

Rubber expansion joints can also be used where thermal expansion is an issue, as this material can absorb vibrations and shock waves extremely well. This type of expansion joint is also great for minimizing the transmission of noise and vibrations, protecting other equipment, such as pumps, as well as shock absorbers for minimizing trauma caused by water hammer, pressure surges, and seismic events.

If you would like to learn more about how expansion joints work, or if you are interested in one of our services or products (expansion joints, industrial dampers, flexible hoses, or piping accessories), please contact Flextech Industries at the location nearest you or by filling out a contact form on our website.