No wear thanks to reversal of material: Robust rotary lobe pumps designed for a significantly longer service life when using media with crystallizing MAPBy NS Energy Staff Writer
Until early 2013, a conventional rotary lobe pump was used to pump centrate into the aeration tank of a wastewater treatment plant. However, significant signs of wear appeared quickly, particularly on the elastomer lobes, due to the high con-tent of magnesium ammonium phosphate (MAP) in the water. The unit required frequent maintenance. For this reason, the decision makers decided to replace the pump with a more robust and reliable model. They chose TORNADO® T2 T.Envi® rotary lobe pump by NETZSCH Pumpen & Systeme GmbH from Waldkraiburg. It is specially tailored to the requirements on site, and thus guar-antees maximum operational safety. Wear could be minimized due to the reversal of material, typical of each particular model series, where metal lobes rotate in elastomer housing. This sets the T2 apart from rotary lobe pumps made by other manufacturers.