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Pumps

Pumps are essential for moving fluids from one location to another. Their primary purpose varies based on their design and application, ranging from water supply in residential and industrial settings to oil transportation in refineries to medical applications such as insulin pumps. Different types of pumps serve specific purposes in these industries. Examples include machine tool coolant pumps, well pumps, and chemical pumps.

Pumps BY CATEGORY

Well Pumps

Well Pumps

Mechanical devices used to extract water from underground wells or reservoirs.

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Chemical Pumps

Chemical Pumps

Specialized pumps designed to handle the transfer and circulation of various chemicals, acids, corrosive liquids, or hazardous substances, utilizing materials and construction that are resistant to chemical corrosion.

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Machine Tool & Parts Washer Pumps

Machine Tool & Parts Washer Pumps

Specialized pumps used in manufacturing and cleaning processes to remove contaminants, ensuring efficient operation.

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Drum Pumps

Drum Pumps

Utilizes rotating elements to create suction and deliver a consistent flow of liquid, making them suitable for various applications.

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Centrifugal Pumps

Centrifugal Pumps

Utilizes centrifugal force, converting rotational energy into kinetic energy, creating a high-velocity flow and pressure that allows for the efficient transfer of liquids.

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Rotary Pumps

Rotary Pumps

Utilizes rotating elements, such as gears, lobes, or vanes, to create suction and deliver a consistent flow of liquid, suitable for various applications requiring efficient and reliable fluid transfer.

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Fuel and Oil Transfer Pumps

Fuel and Oil Transfer Pumps

Specialized pumps designed for the efficient and safe transfer of fuels, oils, and other petroleum-based liquids, featuring robust construction and materials that are compatible with flammable or combustible substances.

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Sump, Sewage & Utility Pumps

Sump, Sewage & Utility Pumps

Facilitates the disposal of wastewater and sewage. Utility pumps are versatile pumps utilized for water transfer, dewatering, and pumping out flooded areas.

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Pump Parts, Kits and Accessories

Pump Parts, Kits and Accessories

Components and supplementary items used to maintain, repair, or enhance the functionality of pumps, ensuring optimal performance and longevity.

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About Pumps

Pumps are essential components in many industrial and residential applications, enabling the movement of fluids from one place to another. What kind of fluids? We won’t ask and, frankly, we don’t want to know! Different types of pumps exist, each designed for specific tasks, making them vital in various sectors, from agriculture and petrochemicals to domestic water supply. And that’s it. You can move onto something else now. Tra la la, da da dee…just kidding! Here are those different types of pumps.


Centrifugal pumps are among the most common types, if you’re into labels. They use centrifugal force to create pressure, pushing the fluid out. They’re typically employed in industries needing high flow rates and for water supply in residential and commercial buildings. They are also involved in side hustles like walking dogs and rideshare driving. Well pumps, including submersible, jet, and solar, are another popular type used to pump liquid from great depth, depths so great that, upon special request, they can be called upon to release…the Kraken! (Please book ahead.)


Rotary pumps are positive displacement pumps that operate by the rotation of revolving elements-gears, vanes, and lobes--to transfer energy to the pumped fluid. Negative displacement pumps bring everyone down and we don’t like to talk about them. These components create a vacuum at the pump suction, which draws the liquid in and pushes it out—then draws the left foot in and shakes it all about—through the discharge as the elements move back into contact. They are especially effective for handling viscous fluids, though companies can use them with a broad spectrum of fluid viscosities. If you feel your fluids are not sufficiently viscous, call the Fluid Hotline at 1-800- SOMETHING FUNNY. Rotary pumps are prevalent in numerous industries, including oil and gas, food and beverage, and pharmaceuticals, because of their efficiency, reliability, and ability to handle various fluid types with downhome charm and a whole lot of moxie.


Fuel and oil transfer pumps move oil, fuel, and other petroleum products from one place to another. What places, you may ask? Why, places as far as the eye can see and as honest as the day is long. Often used in various industries, these pumps create a suction force that draws the liquid into the pump before expelling it out the other side. They are commonly used in refineries, fuel storage facilities, and vehicles requiring fuel or oil, or oil and fuel, depending on who’s in charge. These pumps can be manually operated or powered by electric or gas-powered engines. There aren’t any candy powered engines yet, but wouldn’t that be cool? The selection of a transfer pump may depend on factors such as the viscosity of the liquid, the distance to be pumped, and the desired flow rate. And if you’ve been involved with as many flow rates as us, you know how truly desirable they can be.


MRO understands that pumps are critical in many aspects of life, from providing water in homes to enabling complex industrial processes. MRO also understands the importance of daily fiber in your diet, which enables some other complex processes which we won’t detail now. The variety of pump types and their numerous uses testify to their importance. Understanding these different types and their benefits can help you choose the right pump for the correct application, thus increasing efficiency and saving energy. And all that saved energy will come in handy one day when you’re thinking, “Gee, I need some energy” and there it is.


As your industrial partner, you can depend on MRO's expertise to help you select the appropriate high-quality pumps from reputable manufacturers for your specific needs. As your tennis partner, you probably shouldn’t depend on MRO because they have a weak backhand and constantly use the wrong grip.

Pumps BLOGS

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Water Well Pump Diagnosis and Repair: The Only Guide You Need

Diagnosing and repairing issues with water well pumps requires a systematic approach and understanding of...

Advice Regarding Pump Selection

When selecting a pump for your application, consider the following key factors to ensure optimal...

Your Full Guide to Submersible Pumps

Submersible pumps are essential for various applications, including water supply, drainage, sewage...

Basic Introduction to Pump Selection

Pump selection involves assessing the type of pump needed, understanding fluid properties and system...

Pumps ARTICLES

Four Things to Consider When Selecting a Sanitary Food Grade Pump

Four Things to Consider When Selecting a Sanitary Food Grade Pump

Choosing the best food grade pump can be confusing, but partnering with experts can help.

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Pump Practicalities

Pump Practicalities

Pumps crucial for food, medicine production. Select high-pressure capacity and efficiency.

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How to Select the Right Hydraulic Hose for Your Project

How to Select the Right Hydraulic Hose for Your Project

Choosing the right hydraulic hose for a high-pressure industrial tool application can be a challenge

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23 Tips for Using Hydraulic Tools Safely

23 Tips for Using Hydraulic Tools Safely

When used correctly, hydraulic power is one of the safest methods of applying force to your work.

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Pumps LITERATURE

Troubleshooting guide

Troubleshooting guide

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Grundfos pump types

Grundfos pump types

Basic principles and Grundfos pump types

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Pump Handbook

Pump Handbook

The Pump handbook can either be read from one end to the other or partly on specific topics. The handbook is divided into 5 chapters which deal with different phases when designing pump systems.

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Centrifugal Pumps & Accessories

Centrifugal Pumps & Accessories

Bell & Gossett’s complete line of in-line and base-mounted centrifugal pumps can handle virtually any HVAC and plumbing requirement. The pumps are engineered for exceptional performance and rugged durability.

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