What type of connection does a compression fitting utilize?

A compression fitting utilizes a mechanical compression connection to join two pieces of pipe or tubing. This type of fitting works by compressing a ferrule or ring around the outside of the pipe as the fitting is tightened, creating a secure and leak-tight seal. The design allows for easy assembly and disassembly without the need for soldering or additional sealing compounds.

Mechanical compression is particularly advantageous because it can accommodate minor misalignments between the pipes and does not require a specialized tool or skill level to achieve a robust connection. This is why compression fittings are commonly used in plumbing and piping systems, where both strength and the ability to easily make adjustments are important.

In contrast to this, other connection types such as adhesive bonds require a curing process, welded joints involve melting the materials together which can be complex and require specific training, and threaded joints depend on the quality of the threads to ensure a tight fit, which may not be as reliable under all conditions.