Sundyne OH6 Pumps Play a Critical Role at a Major Greenfield Refinery in India For decades, Sundyne’s LMV single-stage integrally geared pumps have been used in refineries – in Crude Oil Distillation Units (CDU) and Vacuum Distillation Units (VDU). A primary application is Reflux – where liquids are pumped through the column to cool the up-flowing vapors and to create condensation within the column. Sundyne pumps are also widely used as Overhead pumps and as Bottoms/Residue pumps to move liquid products in and out of distillation towers. | 
