Roto Pumps

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Engineered Pumping for Viscous, Abrasive, and High-Solids Fluids

Roto Pumps is recognized for its work in progressive cavity pump technology, with installations across more than 50 countries and a strong presence in industries where fluid properties vary significantly. These pumps are typically selected for applications involving viscous, shear-sensitive, abrasive, or solids-laden fluids where consistent flow and controlled handling are required.

Progressive Cavity Pump Technology and Performance

Roto Pumps’ core technology is based on the progressive cavity pumping principle. The design uses a single-helix metallic rotor rotating inside a double-helix elastomer stator. As the rotor turns, sealed cavities form and move from suction to discharge, carrying fluid through the pump.

This mechanism produces a continuous, non-pulsating flow that is largely independent of discharge pressure. Flow rate is directly proportional to speed, allowing predictable control in process systems.

Progressive cavity pumps are used where maintaining consistent flow is more important than achieving high flow rates. The design also allows handling of high-viscosity fluids, entrained solids, and shear-sensitive materials without significant degradation.

Pump Technologies and Product Range

Roto Pumps’ product offering is centered on progressive cavity pump technology for applications requiring controlled flow of viscous, abrasive, or solids-laden fluids. These pumps are available in multiple configurations, including general industrial transfer, dosing, food-grade, and vertical designs.

In operation, progressive cavity pumps are used for continuous transfer and metering where flow stability is required. Their ability to maintain consistent output under varying system pressures makes them well-suited for process applications involving difficult fluids.

Roto Pumps also manufactures additional positive displacement technologies. Within IPE’s offering, the focus remains on progressive cavity systems for industrial applications that require consistent flow and solids handling.

Applications Across Process Industries

Roto Pumps equipment is used in industries where fluid handling conditions are often challenging and require consistent performance. Typical applications include chemical processing, wastewater treatment, oil and gas, food and beverage production, mining, and power generation.

These pumps are particularly effective in systems involving:

High-viscosity fluids
Slurries and solids-laden media
Shear-sensitive materials
Abrasive or corrosive process fluids

Because progressive cavity pumps operate with low internal velocity and continuous flow, they are often selected for processes where maintaining fluid integrity is important.

Engineering Considerations for Roto Pump Selection

Selecting a progressive cavity pump requires evaluating both the fluid and the operating conditions. Viscosity, solids content, abrasiveness, and chemical compatibility all affect pump performance and component life.

Rotor-stator geometry, speed selection, and material choice determine efficiency and wear characteristics. These pumps are capable of self-priming and handling suction lift conditions, which can simplify system design in certain applications.

Operating limits must be respected. Dry running, excessive speed, or incorrect material selection will reduce stator life and overall reliability. These factors should be addressed during pump selection and system design to ensure long-term performance.

Applying Roto Pumps with Illinois Process Equipment

Illinois Process Equipment works with customers to apply Roto Pumps technology to systems where fluid-handling requirements extend beyond standard pump selection.

This includes evaluating process conditions, selecting appropriate configurations, and verifying compatibility with both the fluid and system design. IPE supports integration, troubleshooting, and long-term service planning to maintain consistent operation.

By combining Roto Pumps’ progressive cavity technology with IPE’s application expertise, facilities can implement systems designed to reliably handle difficult fluids.

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