What is the role and importance of the pressure relief valve in the irrigation system?

1. Role
Prevent water hammer: In the irrigation system, the sudden start or stop of the water pump, the rapid opening or closing of the control valve and other operations may cause rapid changes in the water flow rate, resulting in water hammer. Water hammer not only causes impact on pipes and equipment, but may also cause serious problems such as pipe rupture and equipment damage. The pressure relief valve can open quickly when water hammer occurs, release the pressure in the pipe, and effectively prevent the occurrence of water hammer.
Stabilize system pressure: The water pressure in the irrigation system is a key parameter. Too high or too low pressure will affect the irrigation effect and equipment life. The pressure relief valve can automatically adjust the opening according to the change of system pressure to keep the system pressure within the set safety range. When the system pressure exceeds the set value, the pressure relief valve will automatically open and release part of the pressure; when the system pressure drops below the set value, the pressure relief valve will automatically close to keep the system pressure stable.
Protect equipment safety: In the irrigation system, key components such as water pumps, filters, and fertilization equipment need to operate under a stable pressure environment. If the system pressure is too high, these devices may be damaged. The function of the pressure relief valve is to automatically open when the system pressure is too high, release part of the pressure, and protect these devices from damage.
2. Importance
Improve irrigation efficiency: By stabilizing the system pressure, the irrigation water flow is evenly distributed, thereby improving irrigation efficiency. At the same time, preventing the occurrence of water hammer can also reduce the waste of water resources.
Extend equipment life: Protect equipment from damage caused by excessive pressure and extend the service life of equipment. This is of great significance for reducing irrigation costs and improving economic benefits.
Enhance system safety: The existence of the pressure relief valve is like a safety barrier that can protect the safety of the entire irrigation system at critical moments. It can not only prevent the occurrence of water hammer, but also respond in time when the system pressure is abnormal, avoiding safety accidents such as equipment damage and casualties.