What is the role of a pressure relief valve in a water system?

In a water system, the primary function of a pressure relief valve is to release excess pressure. When pressure within the system exceeds a predetermined threshold, the valve activates to open, allowing some of the fluid to escape. This mechanism is crucial for the safety and integrity of the system, as excessive pressure can lead to equipment failure, leaks, or even catastrophic explosions. By maintaining the pressure within safe limits, the pressure relief valve protects not only the system components but also the overall water supply infrastructure.

The other functions mentioned, such as increasing water flow, filtering impurities, or augmenting water purification, do not align with the specific purpose of a pressure relief valve. Instead, those tasks are managed by other system components like pumps, filters, and purification units, which serve distinct roles in the overall water management process.