The pneumatic diaphragm pump is a positive displacement pump driven by compressed air, whose volume changes due to the reciprocating deformation of the diaphragm. Its working principle is similar to that of the plunger pump. Because of the characteristics of the working principle of the pneumatic diaphragm pump, the pneumatic diaphragm pump has the following characteristics:

(1) The pump will not overheat: driven by compressed air, the exhaust is a process of expansion and heat absorption. The temperature of the pneumatic pump is reduced when it works, and no harmful gas is discharged.

(2) No electric spark: the pneumatic diaphragm pump is not powered by electricity, and it prevents electrostatic spark after grounding.

(3) It can pass the liquid containing particles: because the volume type works and the inlet is a ball valve, it is not easy to be blocked.

(4) The shearing force on materials is extremely low: how to suck in and how to spit out when working, so the stirring of materials is minimal, and it is suitable for the transportation of unstable materials.

(5) The flow is adjustable. A throttle valve can be installed at the material outlet to adjust the flow.

(6) It has the function of self-priming.

(7) It can run empty without danger.

(8) It can work by diving.

(9) It can transport a wide range of fluids, from low viscosity to high viscosity, from corrosive to viscous.

(10) No complex control system, no cables, fuses, etc.

(11) Small size, light weight, easy to move.

(12) No lubrication is required, so the maintenance is simple, and the working environment will not be polluted due to leakage.

(13) The pump is always efficient and will not be reduced due to wear.

(14) 100% energy utilization. When the outlet is closed, the pump automatically stops, and there is no equipment movement, wear, overload and heating.

(15) There is no dynamic seal, and the maintenance is simple to avoid leakage. There is no dead point during operation.