Lobe Pumps

CORROSION-RESISTANT, GOOD CIP/SIP FEATURES, NO PRODUCT DEGRADATION
Rotary lobe pumps are positive-displacement type pumps that use two or more lobes rotating around parallel shafts in the pump’s body to move liquids.

POSITIVE DISPLACEMENT: ROTARY PUMP

Non-contacting Rotary Lobes

Rotary lobe pumps are positive-displacement type pumps that use two or more lobes rotating around parallel shafts in the pump’s body to move liquids. They are widely used in the hygienic processing industries, including food & beverage processing and biopharmaceutical manufacturing.

Unlike gear pumps, the lobes used in these pumps do not make physical contact with each other, a feature that provides some distinct advantages in pumping certain types of materials. The shafts to which the lobes are attached rotate in opposite directions when in operation. This process repeatedly creates collapsing cavities inside the pump, and moves out products through the discharge.

OPERATING PRINCIPLE OF 
LOBE PUMPS

Positive Displacement Pump

Inside a lobe pump, fluid flows around the interior of the casing. Unlike external gear pumps, however, the lobes do not make contact. Lobe contact is prevented by external timing gears located in the gearbox. Pump shaft support bearings are located in the gearbox, and since the bearings are out of the pumped liquid, pressure is limited by bearing location and shaft deflection.

As the lobes come out of mesh, they create expanding volume on the inlet side of the pump. Liquid flows into the cavity and is trapped by the lobes as they rotate. Liquid then travels around the interior of the casing in the pockets between the lobes and the casing. Basically, fluid does not pass between the lobes. Finally, the meshing of the lobes is what forces the liquid through the outlet port under pressure.

LOBE PUMPS FEATURES 
AND BENEFITS

Outstanding sanitary characteristics
High efficiency and reliability
Corrosion-resistant
Moves medium-sized solids without damaging
Continuous constant flow regardless change in system pressure
Rugged and long MBTF
Superior CIP/SIP capabilities
Long term dry run but with lubrication

INDUSTRIAL LOBE PUMP BRANDS 
WE SELL, STOCK & SERVICE

Packo represents a legacy of innovation that spans almost 90 years and accounts for millions of quality pumps sold and used around the globe.Waukesha Cherry-Burell LogoAlfa Laval Pump LogoAMPCO pumps logo
All-Pumps has an extensive range of Lobe Pumps from the world’s most trusted manufacturers. Spare parts are also available for emergency cases. We also have trained and experienced staff who can be dispatched to the field for quick and effective Lobe pump servicing.
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