What is the expansion rate of PVC?

The expansion rate of PVC pipe is commonly accepted to be 3/8 inch per 10 feet of pipe per 100 degrees Fahrenheit of temperature increase. This means that for each 10-foot section of PVC, there will be an increase in length of 3/8 inch for every 100-degree Fahrenheit rise in temperature. Understanding this thermal expansion is crucial for plumbing applications because it helps prevent potential issues such as pipe warping, stress on joints, or even leaks that can occur due to temperature changes. Proper installation practices, such as allowing for expansion and contraction, can enhance the durability and functionality of PVC plumbing systems.