What is the purpose of a temperature and pressure relief valve?

The purpose of a temperature and pressure relief valve primarily revolves around safety in hot water systems. Its main function is to prevent the water heater tank from building up excessive pressure. When water is heated, it expands, and if there’s a malfunction that causes the temperature or pressure to rise too high, the valve is designed to open and release the excess pressure. This prevents potential hazards such as tank rupture or explosion, ensuring the safe operation of the system.

In contrast, regulating water temperature alone does not encompass the full scope of what the valve does; it addresses pressure concerns as well. Monitoring water quality is not a function of this valve, as its sole purpose is related to temperature and pressure management rather than assessing or improving water quality. Additionally, while energy efficiency is an important aspect of water heating, the temperature and pressure relief valve does not directly contribute to this goal. Its priority is safety rather than operational efficiency.