There is hardly a field of life where a gear pump isn’t un use. As a positive displacement rotary pump, two internal gears generate enough vacuum pressure to propel the movement of fluid within the pump.

Though a large majority of uses are to transport water, the petroleum and chemical industries also make good use of the system. Because of its properties, it is good for the transport of both corrosive and viscous fluids.

As with anything, there are pros and cons associated with these types of pumps. Here are some of the advantages.

Use and Maintenance

Because the pump is comprised of just two gear, the body, and the front and rear covers, it is quite compact and easy to use. Because it is so lightweight, it makes it useful for a number of applications on a variety of job sites.

It doesn’t require much labor and it is easily transported. The simple structure and few components lend well to affordable and convenient repairs whenever a problem occurs.


If comparing gear pumps to more conventional pumps shows how the gear pumps are much more cost-effective.

To some extent, there is a savings in the delivery or transport costs because of the size of the pump, but the few components of the design create a lower manufacturing cost. Maintenance is easily done, with low costs parts readily found for each component.

These pumps are more economical from a number of perspectives.

Work Efficiency

There is little fluid loss in these pumps, though some fluid is used to keep the sides of the gear and bearing lubricated.

Since the pump body can’t be fitted without clearance, the pump operates at an efficiency of 100%. Even if it isn’t in the best of shape, the pump can reach an efficiency between 93% to 98%.


Gear pumps aren’t affected too much by changes in the density or viscosity of the fluid.

The power of the pump will still push fluid through a strainer or a restrictor that has been added to the side of the discharge port on the pump.

When the filter gets clogged or dirty, the pump can still maintain a constant flow until the weakest component of the pump has reached its limit.

These benefits show why many industries rely on gear pumps for their fluid transport needs. The pumps are durable and affordable, as well as highly capable of the projects that require them.

4 Key Advantages of Gear Pumps 1
4 Key Advantages of Gear Pumps 2