What aspect of a piping system can expansion joints help manage?

Expansion joints are specifically designed to absorb thermal expansion or contraction in piping systems. As temperatures change, liquids or gases within pipes can heat up or cool down, leading to size changes in the piping. This movement can create significant stresses and forces acting on different components of the system, potentially leading to leaks, failures, or damage if not managed properly.

By incorporating expansion joints into a piping system, these movements are accommodated, allowing the pipes to expand or contract without causing undue stress to the system. This is crucial in maintaining the integrity of the piping and ensuring reliable operation. Expansion joints can effectively mitigate the effects of thermal fluctuations, leading to a longer lifespan for the piping system and minimizing the risk of costly repairs or maintenance.

The other options do not accurately reflect the primary purpose of expansion joints. While pressure build-up, maintenance access, and pipe support are important considerations in piping systems, they do not specifically relate to the function of expansion joints.