Which statement is true regarding the differences between Schedule 40 and Schedule 80 PVC?

The statement regarding Schedule 80 PVC having a thicker wall and offering more protection is accurate. Schedule 80 PVC is specifically designed with a heavier wall compared to Schedule 40. This thicker wall provides increased strength, allowing it to withstand higher pressures and physical stress, making it suitable for applications involving greater impact or durability requirements.

In contrast, Schedule 40, while still robust and widely used, is not as thick or pressure-rated as Schedule 80, thus making it less suitable for applications that may encounter significant physical damage or require greater structural integrity. Understanding these physical differences is crucial in selecting the right type of PVC pipe for specific applications, ensuring safety and compliance with local codes and regulations.