The glass manufacturing industry has extremely high requirements for temperature and pressure control, and the pressure calibration pump has an indispensable application in the glass production process. In the glass melting furnace, melting glass raw materials requires a precise pressure environment to ensure the full mixing and uniform melting of the raw materials. The pressure calibration pump can calibrate the pressure monitoring system of the furnace, enabling operators to accurately grasp the pressure inside the furnace and adjust the pressure parameters according to the glass formula and production process, ensuring the stable quality of the glass melt and avoiding defects such as bubbles and stones. In the glass forming stage, whether it is the float production of flat glass or the blowing, pressing, and other processes of glass products, the pressure calibration pump can calibrate the pressure devices in the forming equipment. For example, in the float glass production, the pressure of the protective gas in the tin bath needs to be strictly controlled. The pressure calibration pump can ensure the accuracy of the pressure, making the glass spread and cool evenly on the surface of the molten tin to obtain high-quality flat glass. In the glass deep processing process, such as the tempering treatment of tempered glass, the pressure calibration pump can calibrate the pressure in the tempering furnace, making the glass bear the appropriate pressure during the heating and rapid cooling processes, enhancing the strength and safety of the glass, meeting the diverse performance requirements of the glass in many industries such as construction, automobiles, and electronics, and promoting the development and progress of glass manufacturing technology.