What is the Best Type of Chemical Transfer Pump?

What is the Best Type of Chemical Transfer Pump?

A chemical transfer pump is essential to operations across numerous industries. These pumps make transfers safer and more efficient. In some cases, the task would be impossible without the right chemical transfer pump.

Of course, some pumps are better for the job than others. Which is best? The best chemical transfer pump for each application is largely determined by the type of fluid involved, the distance the fluid needs to travel, and the flow rate required.

Based on these variables, pump owners may choose a centrifugal pump or a positive displacement pump for their systems. For example, if the fluid is highly viscous, positive displacement pumps may be the preferred choice.

What are the available options? Following are the most common types of chemical transfer pump:

  • Centrifugal: Sealed or Sealless
  • Positive Displacement: AODD, Rotary lobe, Gear, Vane, or Peristaltic

While each of these types has merit, centrifugal pumps are frequently selected due to their high efficiency and simple design. Because they are often the top choice, let’s take a closer look at the main types of centrifugal chemical transfer pumps and how to choose the best one for your application.

Sealed vs. Sealless Centrifugal Chemical Transfer Pump

A centrifugal chemical transfer pump is designed as either sealed or sealless.

A chemical transfer pump with a mechanical seal can offer the perfect solution for applications that require the transfer of liquids that contain solids. A second advantage of these pumps is the cost. Compared to sealless pumps, these styles are typically available at a lower price point.

A sealless centrifugal transfer pump, on the other hand, offers unique advantages. By eliminating the seal (which eventually fails), the sealless design prevents leaks and emissions. For some applications, this is critical, because they involve toxic chemicals, corrosive liquids, or flammable fluids that would pose extreme hazards if a leak occurred.

Sealless pumps are also extremely reliable and require very little maintenance. They often can operate for a decade or more without requiring any repairs. This advantage offsets the higher initial cost of this style of pump. The overall savings during the lifetime of the pump typically exceed the additional cost that owners incur when purchasing the pump.

Ultimately, the final decision regarding which chemical transfer pump to use for your application should be based on the unique characteristics of your operations. However, in any application, certain qualities are key. As you choose a chemical transfer pump, always consider the following three factors.

Factors to Consider


How long can you expect the pump to last? How often will it require maintenance? Will your operations suffer from frequent down time?

If you can’t rely on a chemical transfer pump to deliver quality performance, it’s not the right pump for your application. When you select a pump, you’re making an investment in your operations, with the accompanying expectation of a good return on that investment. You need to be able to count on the pump to keep your application running smoothly and safely. To choose the best chemical transfer pump, look for one with proven reliability.


Not every chemical transfer pump is suitable for each application. Basic application parameters to consider include:

  • Fluid concentration
  • Specific gravity
  • Viscosity
  • Solids data
  • Temperature
  • Flammability

To determine which chemical transfer pump is most suitable for your application, consider using tools such as an online pump guide, pump selector, and chemical compatibility guide. These resources can quickly point you in the right direction to find the best chemical transfer pump.


If you’re going to entrust the safety and efficiency of your operations to a chemical transfer pump, it should be branded with a name you can trust. Look for a manufacturer that has a track record of success in the industry. Choose one that stands behind their products with excellent service and extended warranties and quality reputation.

Finish Thompson’s Chemical Transfer Pump Lineup

Finish Thompson is a world leader in chemical transfer pump manufacturing. We offer a complete line of pumps to meet the needs of a full range of applications. If you’re looking for the best type of chemical transfer pump, follow the links below. These pumps deliver the reliability, suitability, and industry-leading quality you want for your operations.

DB Series Chemical Transfer Pump

  • Strongest neodymium magnets
  • Polypropylene or PVDF material
  • Rugged construction
  • High efficiency
  • Hours of run-dry capability
  • 5-year manufacturer’s warranty

Finish Thompson DB Series Mag Drive Pump

MSDB Series Multi-Stage Chemical Transfer Pump

  • Multi-stage pump design
  • Based on the reliable DB series
  • Ideal for high-head, low flow applications
  • Over 300 feet (91 meters) of maximum head
  • Extended run-dry ability
  • 5-year manufacturer’s warranty

Finish Thompson MSDB Series Mag Drive Pump

SP Series Self-Priming Chemical Transfer Pump

  • Lightning-fast self-priming
  • Corrosion resistant
  • No seals, so there are no leaks
  • Deep lift abilities
  • Transfer from tanks, sumps, rail cars
  • 5-year manufacturer’s warranty

Finish Thompson SP Series Mag Drive Pump

ULTRAChem Series ANSI Directional Chemical Transfer Pump

  • Leak-free operation
  • Ductile iron construction
  • EFTE-lined housing and wetted components
  • ANSI dimensional
  • Powerful neodymium magnets
  • 2-year manufacturer’s warranty

Finish Thompson UC Series Mag Drive Pump

About Finish Thompson

Finish Thompson Inc. designs and manufactures pumps for the safe transfer of a wide variety of corrosive liquids. Products include centrifugal sealless magnetic drive pumps with run-dry capability, mechanically sealed pumps, drum and barrel pumps, vertical mag-drive pumps, multi-stage pumps, and the FTI Air line of air operated double diaphragm (AODD) pumps. For durable solutions for your applications, contact Finish Thompson Inc.