What is a primary benefit of using pressure relief valves in a plumbing system?

The primary benefit of using pressure relief valves in a plumbing system is that they prevent pipe damage from excessive pressure. These valves are designed to automatically release pressure when it exceeds a predetermined level, thereby protecting the plumbing infrastructure from the damaging effects of high pressure. Excessive pressure can lead to leaks, ruptures, or bursts in pipes, which can result in costly repairs and water loss. By maintaining safe pressure levels within the system, pressure relief valves help ensure the integrity and longevity of the piping system.

Regarding the other options, reducing water temperature pertains to temperature controls rather than pressure management, while increasing the lifespan of pipes can be a secondary effect, but is not the primary function of pressure relief valves. Improving water taste involves treating or filtering the water, which is unrelated to pressure control mechanisms. Thus, the primary and most direct function of pressure relief valves is to mitigate the risk of pipe damage due to excessive pressure.