Two-screw positive displacement pumps provide performance solutions for many chemical batch processing applications that cannot be achieved through the use of more common centrifugal pump technology. Frequently, two-screw pumps are a “last resort” because they can be a higher investment cost than centrifugal technology and are less known – but these factors should not be an engineer’s only criteria for evaluation.  wo-screw pumps should be considered in any application where the process may involve variations in flow, temperature, pressure, liquid characteristics or viscosity. Two-screw performance excels in chemical process and transfer applications that experience one or more of these variations, as well… (to continue reading open the white paper)