There are many types of internal gear pumps, but they are basically the same. The "gear within a gear" design is a relatively recent development. The advantage is that the mechanical shaft has fewer support bearings and larger but fewer teeth, so it is particularly suitable for very viscous fluids. Despite their cantilevered design and less ability to handle very high pressures, they have become very popular in the fields of chemicals, bitumen, resins, etc., mainly because of their ease of maintenance and versatility. A big advantage over external gear pumps with factory preset clearances is that the end clearances of the pump can be adjusted, thus extending the pump's service life and versatility. The design shown below has simple straight teeth.

Viscous fluids can be moved easily with a gear pump. Typically, industrial gear pumps can handle up to 5,000 cPoise, while process gear pumps can handle more than 100,000 cPoise. When the viscous fluid is pumped, the pump speed is reduced accordingly.

The above explains what an internal gear pump is and whether a gear pump can handle viscous fluids. 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。