What does proper support from pipe hangers prevent in a plumbing system?

Proper support from pipe hangers is crucial in a plumbing system because it prevents sagging and stress on the pipes. When pipes are inadequately supported, they can bend or sag under their own weight, leading to potential failure points. This sagging can cause joints to become misaligned, leading to leaks and other issues over time. By ensuring that pipes are securely held in place at appropriate intervals, pipe hangers help maintain the structural integrity of the plumbing system, ensuring that pipes remain straight and properly aligned.

While other factors such as corrosion, clogging, and thermal expansion are important in plumbing systems, they are not directly prevented by the use of hangers. Instead, they may require different types of management or mitigation methods. Therefore, the role of pipe hangers is primarily focused on maintaining the right mechanical support and alignment of piping.