Air-relief valves are installed to:

Air-relief valves are specifically designed to vent trapped air that may accumulate in a water system, particularly in a well column. When a well is not in use, air can enter the column, leading to issues with water flow and pressure stability when the well is activated again. By releasing this trapped air, the air-relief valves ensure that the water system can operate efficiently and effectively without the interference of accumulated air, which may cause cavitation or impede the movement of water.

Additionally, the function of air-relief valves is vital in preventing situations where air pockets can form, which can be detrimental to pumping efficiency and overall system performance. When air is allowed to escape, the system maintains a consistent and reliable flow of water, enhancing the operational integrity of the well and its connected infrastructure. This is particularly significant in systems where a consistent pressure is required for proper functioning.