How do temperature changes typically affect piping materials?

Temperature changes have a significant impact on the physical properties of piping materials. When the temperature rises, most materials expand, increasing their volume, while a decrease in temperature typically results in contraction. This expansion and contraction can be particularly crucial in piping systems because it can lead to changes in the dimensions of pipes, fittings, and joints.

Understanding this property is essential for pipefitters because when designing or installing piping systems, they must account for thermal movement. Failure to do so can result in issues such as misalignment, increased wear on joints, or even catastrophic failures in extreme cases. Therefore, recognizing that temperature changes lead to expansion or contraction is fundamental to performing effective piping installations and maintenance.