1. There is no shaft seal, no leakage, and the flow passage is spacious. Therefore, when transporting the medium containing particles with high viscosity (viscosity up to 10000 centipoises), which is volatile and corrosive, it will not cause environmental pollution and endanger personal safety.

2. No rotating parts, good passing performance, and the maximum particle diameter allowed to pass is 10mm. The liquid has no shear flow, and the wear of pump parts is small. It has little damage to the transported materials, and can transport sludge and life forms such as small fry.

3. No need for irrigation and water diversion, strong self-priming capacity, suction head up to 7 meters, dry breathing for a long time, and no damage to the pump. In case of overload, the pump will automatically stop. When the load returns to normal, it can automatically start and run, with self-protection function (electric pump does not have this function).

4. The lift of the pneumatic pump is 50 meters, the electric pump is 30 meters, and the maximum outlet pressure can reach 0.6 MPa. The electric pump has no such function, and the inlet shall be controlled by a regulating valve.

5. The pneumatic pump can be immersed in the medium to work without power supply, which is safe and reliable [the electric pump has no such performance].

6. The pneumatic pump does not need power supply, and is more suitable for the transportation of flammable and explosive media.