Which statement is true when comparing Schedule 40 to Schedule 80 PVC?

When comparing Schedule 40 to Schedule 80 PVC, it is true that Schedule 80 can be used in applications where it may be exposed to physical damage. This is primarily because Schedule 80 PVC has a thicker wall compared to Schedule 40, providing greater impact resistance and durability.

This increase in thickness means Schedule 80 is particularly advantageous in environments where piping could be subject to physical stress or mechanical impact, such as in industrial settings or exposed locations. Additionally, the enhanced strength of Schedule 80 allows it to withstand higher pressures than Schedule 40, further reinforcing its suitability for a wider range of applications where safety and durability are a priority.

While the other statements detail characteristics that are incorrect, understanding the robust nature of Schedule 80 PVC and its appropriate applications clarifies why this option is the most accurate choice.