Crude Oils
Positive displacement pumps are ideal for transferring crude oils due to their ability to handle a wide range of viscosities and maintain a consistent flow rate regardless of pressure changes. These pumps move a fixed amount of fluid with each cycle, making them effective at pumping thick, viscous liquids like crude oil. Additionally, they can generate high pressures, making them suitable for transferring oil over long distances or through pipelines with varying elevations. Their design also allows them to handle fluids containing gases or solids without losing efficiency, which is particularly useful in oil extraction and transportation.
Recommended Pumps
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GB-414 SERIES™
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GB-425 Series™
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4624B SERIES™
- Cast Iron
- Mechanical Seal
- 0.75-182 gpm | 0.17-41 m3h
Articles / Case Studies

Viscosity is a measure of a liquid’s resistance to flow. And you don’t need to work in a laboratory to observe this. Anyone who’s spent any time in the kitchen has observed a variety of liquids with a wide variety of viscosities.

Unlike most of my colleagues I didn’t start out with a mechanical background. While they were studying kinetics and machine design, I was studying digital electronics and industrial power. When I started my career in the world of pumps, I had to learn a whole new set of concepts. What was surprising was that while the terminology may be a bit different, the concepts are very similar. Think of the following as a “Rosetta Stone” for translating the common terms and concepts of fluid systems to your more familiar terms and concepts of electrical systems.
Videos
- How Pump Packing Works - AnimationIn this video, learn about pump packing and how it works.March 14, 2025
- Welcome to Viking Pump's Machine ShopThis is Viking Pump’s machine shop in Cedar Falls, Iowa. Continual investments in machines and people simplify and expedite production – enabling shipment for thousands of products every year.February 28, 2025