Waukesha U22 Lobe pump

• Transferring viscous liquids and slurries in food processing.
• Handling delicate products that require gentle pumping action.
• Metering and dosing applications in chemical and pharmaceutical industries.
• Moving high-solids content fluids in wastewater treatment.

Pump type

Positive displacement lobe pump

Typical flow rate

For this class of equipment, flow rates typically range from a few litres per minute up to several cubic metres per hour, depending on lobe design and motor speed.

Inlet/Outlet connection

This unit features 40mm connections; other Waukesha U-series pumps commonly offer a range of sizes to suit various pipework.

Materials of construction

Units of this type typically feature 316L stainless steel wetted parts for hygiene and corrosion resistance.

Variable speed drive

The inclusion of variable speed allows for precise flow control and adaptability to different product viscosities.

Typical operating pressure

Lobe pumps are generally capable of generating pressures up to 10-20 bar, suitable for many transfer applications.

Power supply

Commonly found on units of this type is a three-phase electrical supply (e.g., 400V, 50Hz in the UK) for the motor and variable speed drive.

• What is the main advantage of a lobe pump over a centrifugal pump for viscous products?

  Lobe pumps are positive displacement, meaning they deliver a constant flow regardless of discharge pressure, making them highly effective for viscous liquids where centrifugal pumps lose efficiency.

• Is this pump suitable for abrasive products?

• What kind of maintenance does a Waukesha U22 typically require?

• Can this pump run dry?

• What certifications are typically relevant for a used food-grade lobe pump?

Food processing pumps are valued for reliability and durability in continuous operations. Buyers typically prioritise corrosion resistance, hygiene compliance, and consistent flow rates. When purchasing used units, inspecting seals, impellers and motor condition proves essential. Industry sentiment favours models with straightforward maintenance requirements and availability of spare parts. Stainless steel construction and gentle handling capabilities for delicate products are consistently sought features.

General overview for this equipment type