Which type of pipe can expand and contract more easily with temperature changes?

PVC pipe is known for its ability to expand and contract more easily with temperature changes compared to other materials. This characteristic is due to its flexible nature and the lower density of the plastic as opposed to metals like copper, galvanized steel, or cast iron.

When temperatures rise, materials typically expand, and when temperatures drop, they contract. PVC can accommodate these changes better because it is less rigid than metals. This flexibility helps prevent the development of stress or fractures that can occur in more rigid pipes if they are subjected to significant temperature fluctuations.

In contrast, materials like copper, galvanized steel, and cast iron are more rigid and susceptible to cracking or other structural issues when undergoing thermal expansion and contraction. Therefore, PVC’s properties make it an ideal choice for applications where temperature variations are a concern.