50 55 60 65 70 75 750 1000 1250 1500 1750 2000 2250 [rpm] [dBA] Noise comparison between: standard external gear pump, dual flank gear pump, internal gear pump, vane pump, ELIKA pump. 200 bar pressure. Dual Flank Gear Pump Standard Gear Pump Vane Pump Internal Gear Pump ® ELIKA First pump by Marzocchi in 1961 ® First ELIKA by Marzocchi in 2011 ® Low Noise, Low Pulsation Gear Pump Elika Helical Gear Pumps 53 www.jbj.co.uk/ELIKA_gearpumps.html #DriveLineHarmony
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