Agricultural production highly depends on irrigation systems to ensure the water supply required for crop growth, and pressure calibration pumps play a crucial role in it. In large-scale irrigation networks, pumping stations are core facilities. The pressure calibration pump can accurately calibrate the outlet pressure of water pumps. This ensures that the irrigation water maintains a stable pressure during long-distance transportation, avoiding uneven water delivery due to pressure fluctuations, so that each piece of farmland can receive an appropriate flow of irrigation water. For sprinkler and drip irrigation systems, the working pressure of sprinkler heads and drip emitters directly affects the irrigation effect. The pressure calibration pump can calibrate the pressure regulating devices of these equipment, ensuring that the sprinkler heads of sprinkler irrigation can evenly atomize and spray water onto the predetermined area, and the drip emitters of drip irrigation can drip water at a precise flow rate. This not only saves water but also meets the water demand of crops at different growth stages, improves water resource utilization efficiency, promotes the sustainable development of agriculture, and reduces the damage to irrigation equipment caused by improper pressure, reducing agricultural production costs.