The working principle of the internal gear pump is the same as that of the external gear pump. However, the two meshing gears of the inner pump are different in size, and one meshing gear rotates in the other meshing gear.

The largest gear is the internal gear, such as its teeth protruding inward. In this area, the minimum external gear eccentricity is positioned. It is designed to work with the rotor so that tooth meshing occurs at a specific point. The shaft bushing and pinion are installed in the pump housing to hold the idler in place.

Internal gear pump with self-priming, no pulsation, can be dry for a short time. The pump is also bi-rotating, which means you can use the same pump to load and unload containers. These pumps are highly reliable and easy to use and maintain.

1, when the pump suction side of the gear off, the volume will increase. As the gear continues to rotate relative to the pump housing and diaphragm, the fluid enters the cavity and is confined by the teeth of the gear.

2. The trapped liquid flows from the inlet to the outlet around the shell.

3, when the gear teeth mesh in the pump outlet section, the volume is reduced, and the liquid is forced out under pressure.

Advantages of internal gear pump:

1, easy to maintain

2. Low NPSH is required

3. Run under medium pressure

4. It has only two moving components

5, most suitable for high viscosity fluids

6. Non-pulsating release

7. Only one stuffing box

8. Its flexible design allows you to customize your application

9, one side adjustable clearance

10. Normal operation in any direction

11, no matter what the pressure conditions, can be uniform and continuous fluid release

Disadvantages of internal gear pump:

1. The price is high

2. Cantilever load on bearing

3, medium pressure limit

4. Average speed is usually required

The above content introduces what is the working principle of the internal gear pump and what are the advantages and disadvantages of the internal gear pump. In addition, Shenzhen Oudejie Technology specializes in the sale of new imported internal gear pumps, and promises to sell products are new imported, while providing our customers with quotation, selection, product information and other services.