James DashwoodMarch 20252 min read

What is a transfer pump?

What is a Transfer Pump? | Transfer Pumps | Crest Pumps

1:29

A transfer pump is a versatile piece of equipment designed to efficiently move liquids from one place to another — whether that’s water, chemicals, fuel, or other fluids. In this blog post, we’ll explain exactly what a transfer pump is, how it works, the different types available, and the key factors to consider when choosing the right pump for your application. Whether you’re handling industrial processes, agricultural tasks, or everyday liquid transfer, understanding transfer pumps will help you select the most efficient and reliable option.

How does a transfer pump work?

Transfer pumps operate by creating a flow of liquid through the pump chamber and out to the discharge point. The exact mechanism depends on the pump type, but in all cases, the goal is to move liquid efficiently without excessive waste or downtime.

Types of transfer pumps

They can take many forms depending upon the liquid to be transferred and the discharge pressure required. However, the most common form of transfer pump is centrifugal that can be sized according to the application. Often the capacity of the pump is not critical. As it simply needs to move liquid and the time it takes is usually not very important.

It should be noted that the discharge pressure may vary. Especially if filling a tank from a bottom entry position, and as the tank fills the system head will increase causing the flow rate to drop slightly.

How to choose the right transfer pump

When selecting a transfer pump, it’s important to ensure that the pump’s construction materials are suitable for the liquid being handled. Factors to consider include:

Chemical compatibility – Pump materials must resist corrosion or damage from the liquid.
Temperature – Ensure materials and seals can withstand the operating temperature.
Viscosity and density – These can affect the pump’s efficiency and required power.
Flow rate and pressure requirements – Even if time isn’t critical, ensure the pump meets your operational needs.