The mechanical action of the gear pump allows self-priming, but the pump should always be kept wet, dry operation of the pump will cause damage and affect performance, and eventually damage the pump can not be repaired.

As with all engineering equipment, gear pumps have a design range that, if used outside of this range, will produce disappointing performance and/or shortened service life.

1, with mesh parts make the pump completely unsuitable for solid or abrasive media, except in some very special cases.

2, gear pump relies on precision clearance and has a number of rotating components. This makes them more expensive than centrifugal pumps.

3. Their ability to generate high pressure can also be a problem! If there is any risk of a "valve off" situation, a pressure relief valve and/or pressure switch must be used to prevent a potentially dangerous situation in the pump that results in excessive discharge pressure.

4, the mechanical design of the gear pump means that there are fewer material choices than centrifugal pumps.

5. Meshing gears can also be noisy. Thin fluids and high speeds can cause the pump to be noisy and may not be suitable for some operating environments.

6, finally, the gear pump is limited by size. When large flow rates are required, they become physically unsuitable compared to other pump technologies.

The above content is whether the gear pump can self-priming, the shortcomings of the gear pump. In addition, Shenzhen Oudejie Technology specializes in the sale of new imported gear pumps, and promises to sell products are new imported, while providing our customers with quotation, selection, product information and other services.