Lobe Pumps

Discover the capabilities of these rotary positive displacement pumps

and how they can be the right solution for your application.

 

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Lobe Pumps

Lobe pumps, also known as rotary lobe pumps, are a type of positive displacement pump that is well-suited for pumping viscous fluids. The efficiency of a lobe pump increases with the viscosity of the product being pumped. They are known for their flexibility, pulsation-free operation, and ability to handle both high and low viscosity fluids at various speeds. Within this page you will find out how a lobe pump works, its operating principle, as well the applications in which lobe pumps excel at and our range of Packo lobe pumps.

How do they work?

Operation is based on two lobes—similar to gears—rotating in opposite directions inside a casing. External timing gears keep them synchronized, maintaining a small clearance to avoid direct contact. This motion creates a vacuum that draws fluid in, traps it between the lobes and casing, and transfers it to the discharge side.

When the lobes mesh, the liquid is expelled from the pump. The following video demonstrates this process with a Packo HP/LH Hy~Line model.

Working Principle Explained

Two counter-rotating rotors draw product into the pump chamber, fill the cavities, and move it around the casing to the discharge port. Different rotor designs; single, double, tri-lobe, multi-lobe, piston circumferential, or helical—can be selected to match the material and application.

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Key Advantages

  • Meets all cleanability processes
  • Extended and improved pump life
  • Ease of maintenance
  • Versatility in applications

Applications

Our lobe pumps are versatile and reliable solutions in handling viscous fluids. Some of the applications include:

Why choose Packo

Packo rotary lobe pumps are an investment in process reliability, hygiene, and efficiency. Benefits include: