Axial pumps are commonly referred to as centrifuge designed pumps because as fluid enters the pump it is pushed outward from the center or axis. Most axial flow pumps operate at lower pressures than radial flow pumps yet still provide higher flow rates. AFP’s are found in thousands of different applications both on the residential and commercial level. With an impeller on a center axis shaft this type of flow pump can produce up to 250,000 gallons per minute and is perfect for thousands of different types of small, medium and large applications.
The Advantages of an Axial Flow Pump in Industrial Applications
The main advantage of the axial flow pump are the ability to change the pitch of the impeller, thus optimizing performance for both high flow low-pressure and low flow high-pressure situations. Although not all models allow for the change of pitch in the impeller, most modern axial pumps do. Being able to change the pitch of the pump and maximize efficiency can save thousands over the life of the pump (in electrical or fuel costs) and improve how long it lasts, and the failure rate of parts.
Another advantage is direct cost. When compared to other pumps like mixed pump and radial pumps axial pumps are often much cheaper. Cost is a factor for any business that means, if possible, an AFP (Axial Flow Pump) may be your best option when design allows for it.
One Downside to Axial Pumps
The one common downside is the inability to use impeller style pumps for suction lift. They must be primed and, in most cases, fully submerged within the liquid being pumped. If the impeller is not submerged before engaging, cavitation may occur and the pump may burn out before it ever starts working. An industrial impeller that is allowed to overheat could cause catastrophic damage to the pump and motor itself or to the internal shaft and housing. In some cases low flow can also cause overheating.
Specific Applications Perfect for Axial Pump Designs
Beyond cost, another advantage of axial designed pumps is that they can fit thousands of applications and are universally popular for many types of fluids, including heavy oils and water. Common industrial applications like water treatment plants, chemical pond drainage applications and as a backup or booster pump systems, are all well suited and common applications for axial pump designs. A smaller commercial application example would be a ballast pump system on a ship.
An axial flow pump is often much cheaper than mixed pump and specialized pump designs. They serve thousands of different applications and can even be custom fit to existing piping through a right angle motor placed outside of a shaft. If you are looking for universal pump design made to stand up for backup and continuous use under normal or severe conditions, an axial flow pump may be perfect for your next commercial installation.
