1. The contact materials of the fluid medium are all made of high-temperature-resistant perfluorinated materials, which have good corrosion resistance and high temperature resistance.；
2. No metal design inside, no lubricant added, no potential pollution such as particles and ions, suitable for high-cleanliness occasions.；
3. No motor, no solenoid valve, no circuit and other non-heating components, easy to install, suitable for explosion-proof applications；
4. There is no contact, no friction, and high reliability between the air sac and the pump body, and it runs automatically after the gas is introduced.；
5. The design of a single air inlet is adopted, the wear resistance coefficient and precision of the ceramic valve stem are high, and there is no trouble with the card machine after heat expansion and contraction.；
6. The reversing valve and the main body are designed to be separated. There is no need to disassemble the main body of the air sac pump during maintenance.；
7. The whole pump can withstand dry operation and debugging for several minutes without affecting the service life.；
8. It can meet the use of more than 2 million travel cycles, with less maintenance, low failure rate and long service life.