Recently, one of our engineers quoted a replacement gear pump, and the customer was puzzled by the...
If you've decided on a positive displacement pump but aren't sure which type suits you best, it's best to understand the options available. This guide focuses on rotary lobe pumps, their functionality, and their ideal applications.
What is a Rotary Lobe Pump?
Rotary lobe pumps are versatile, used in industries ranging from food and beverage to wastewater treatment. They are favored for their efficiency, reliability, and ability to handle solids and maintain CIP and sanitary conditions.
How It Works
Rotary lobe pumps are similar to external gear pumps but they use lobes—single, bi-wing, tri-lobe, or multi-lobe—to move fluid. The lobes rotate independently, driven by external timing gears, and work against each other to push the liquid through the pump. This design helps manage large particles and abrasive materials effectively.
Advantages
These pumps excel in applications requiring gentle handling of shear-sensitive fluids and solids. They’re commonly used in food processing, soaps, paints, and polymers due to their ability to manage particles without damage.
Limitations
Rotary lobe pumps struggle with low-viscosity fluids due to their relatively loose clearances, making them less effective for such applications.
- Best Applications
- Soaps
- Paints and dyes
- Various food products
- Polymers
- Paper coating
Did you know we offer rotary lobe and gear pumps from Gorman Rupp, Pulsafeeder, Ampco, LobePro, and more?
Expert Assistance
If you think a rotary lobe pump might fit your needs, reach out to us to ensure you select the right model. Professional Pump, located in Belleville, Michigan, is equipped to service and repair all makes and models of pumps, valves, and fluid handling systems in the industry. We serve businesses located throughout Michigan and NW Ohio.
