The Biogas Rotary Lobe Pump from Boerger offers biogas operators an effective and wear-resistant solution for pumping biogas substrate from renewable resources. At the core of the pump is the Premium profile steel rotor that ensures fibers in the pumped medium actually become part of the short-term surface. They attach themselves in the grooves and are continuously renewed each time the rotor turns. This organic short-term surface provides full protection from wear and the profile rotor itself shows virtually no signs of wear even when subjected to long-term exposure. It is constructed using a maintenance-in-place design, which allows for all wetted parts to be replaced without the removal of pipe or drive systems. 612/435-7300; www.boerger.com.