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Lobe Pumps

Lobe Pumps. Marco Duca Tony Ghioldi Becky Grove. 12 October 2005. Lobe Pumps. Lobe Pumps are rotating, fixed volume, positive displacement pumps. Basic components include Inlet Outlet Lobes. Operation: Step 1. Rotation of lobes Creation of expanding volume Suction effect

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Lobe Pumps

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  1. Lobe Pumps Marco Duca Tony Ghioldi Becky Grove 12 October 2005

  2. Lobe Pumps • Lobe Pumps are rotating, fixed volume, positive displacement pumps. • Basic components include • Inlet • Outlet • Lobes

  3. Operation:Step 1 • Rotation of lobes • Creation of expanding volume • Suction effect • Fluid entrapment

  4. Operation:Step 2 • Liquid flows between walls

  5. Operation:Step 3 • Lobes re-mesh • Fluid forced out by pressure

  6. Operating Conditions • Operating Pressure • 50—300 psi • Volume • 0—600 gpm • Rotational Speed • 500—1000 rpm • Suction lift • Up to 25 ft.

  7. Advantages • Able to mass medium solids • No metal to metal connectivity • Non pulsating discharge • High sanitary qualities • High efficiency, reliability • Good clean-in-place/service-in-place qualities

  8. Disadvantages • Requires timing gears • Requires two seals • Lower viscosity fluids lower the suction lift

  9. Industrial Uses • Sanitation • Food Services • Pharmaceutical • Beverage

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