In the pharmaceutical field, accurate pressure control and measurement are one of the key elements to ensure the quality and safety of drug production. Pressure calibration pumps play an indispensable role in multiple links of the pharmaceutical process. For example, in drug synthesis reactions, the pressure inside the reaction vessel needs to be precisely regulated. The pressure calibration pump can provide accurate calibration for pressure sensors, enabling operators to accurately grasp the reaction pressure and ensure that the chemical reaction proceeds according to predetermined conditions, thereby improving the purity and consistency of drugs. In the drug packaging process, especially for some drug packaging that requires specific air pressure for filling or sealing, such as aerosol drugs, the pressure calibration pump can be used to calibrate the pressure devices in packaging equipment to ensure that the air pressure inside the packaging meets the standards, prevent drug leakage or deterioration, and guarantee the stability and effectiveness of drugs during storage and transportation. In addition, the air pressure monitoring and control in the clean rooms and pipeline systems of pharmaceutical factories also rely on pressure calibration pumps. It helps to maintain a stable and clean production environment, avoid adverse effects of external pollution on drug quality, and meet the strict quality control and regulatory requirements of the pharmaceutical industry.