The shock wave generated by a valve closing rapidly in an irrigation system is called

The phenomenon that occurs when a valve closes rapidly in an irrigation system, generating a sudden increase in pressure, is termed water hammer. This occurs due to the inertia of the water, which is suddenly stopped by the closing valve, causing a rapid change in momentum. As the flow of water is abruptly halted, a pressure wave is created, which can lead to damaging impacts on pipes and fittings if not managed properly. Understanding this concept is crucial for irrigation technicians because it highlights the importance of gradual valve closure and proper system design to mitigate potential damage from these pressure surges. Water hammer is a critical consideration in maintaining the longevity and efficiency of an irrigation system.