The production process of the paper industry is complex, and the pressure calibration pump plays a crucial role in many aspects. In the pulp preparation stage, the precise control and monitoring of the pressure inside the digester is of great importance. The pressure calibration pump can calibrate the pressure measuring device of the digester, ensuring that the pulp is cooked under appropriate pressure and temperature conditions, so that the fibers are fully separated and the pulp quality is improved, laying the foundation for the strength and uniformity of the subsequent paper. During the operation of the paper machine, pressure is involved in various parts such as the wire section, press section, and drying section. For example, the press section squeezes out the water in the wet paper web through pressure. The pressure calibration pump can calibrate the pressure control system of the press rolls, ensuring that the pressing pressure is uniform and stable, which can effectively dewater without damaging the paper structure. The pressure of the ventilation system in the drying section also needs to be precisely controlled. The pressure calibration pump can calibrate it, making the hot air act evenly on the paper, promoting water evaporation, improving drying efficiency, ensuring the smoothness and quality of the paper, meeting the strict quality requirements of different uses such as printing and writing, and enhancing the production efficiency and product competitiveness of paper enterprises.