Renewable resources - biogas substrate

The operator of a biogas plant was looking for a reliable pump for transferring highly abrasive biogas substrate from a fermenter to a secondary fermenter. The rotary lobe pump previously used increasingly suffered from extreme wear on the rotor. It was essential for the operator of the biogas plant to have a pump on-site with a long service life, low wear and be easy to maintain in the case of repairs. Owing to the design of the pipe line system, the pump had to be able to cope with pressure of -0.4 bar.  

The customer chose a Boerger Rotary Lobe Pump. The speed of the Boerger pump is controlled by a frequency converter depending on the negative pressure. An electronic pressure gage measures the pressure.

Technical data