These rotary-lobe pumps avoid pulsation and backflow
The new BLUEline Nova rotary-lobe pump (photo) features a newly designed rotor that ensures nearly pulsation-free pumping at pressure up to 12 bars. The wide sealing surfaces of the screw-profile rotor prevent backflow of media. A modified pump chamber, featuring optimized inlet and outlet geometry and wrap angle, promotes the performance of the dual-lobe rotor and improves volumetric efficiency, says the manufacturer. Furthermore, the large seal chamber of the pump provides space for different types of sealing systems. BLUEline Nova pumps are available with or without casing. The casing-free version offers minimal dead space and can be cleaned according to hygienic procedures. The protected casing-equipped version works well for pumping abrasive media. Booth 1309 — Börger GmbH, Borken-Weseke, Germany