An international manufacturer of starch and starch derivatives was searching for a reliable pump to transfer crystal slurry. The food manufacturer's main priority was to have a smooth production process as any disruptions would lead to huge expense. 

The manufacturer had several different pumps installed for transferring the crystal slurry. All of the pumps installed had suffered serious problems dealing with the pumped medium. The crystal slurry hardens quickly and is highly viscous with a solids content of up to 75% DS. The previous pumps had sealing faults, as the medium coagulated on the sealing surfaces of the mechanical seal and dried there.  

Now the customer is using a Boerger Protect Rotary Lobe Pump. The Boerger Protect is equipped with double-acting mechanical seals. A Boerger thermosyphon system ensures the pressure for the mechanical seal. This prevents the medium from accumulating on the sliding surfaces of the mechanical seal. The Protect model is fitted with a heated cover to ensure the medium does not cool down inside the pump.

The customer is extremely satisfied with the Boerger Protect Rotary Lobe Pump. Production downtime due to faulty mechanical seals is a now a thing of the past. Any maintenance work can also be performed very quickly due to the Boerger pump ease of maintenance design (MIP = Maintenance in Place). Plant productivity also improved.

Technical data