# Rotating Positive Displacement Pump

Rotating Positive Displacement pumps are usually used to move high viscosity liquids through a system. A rotary pump traps fluid in its closed casing and discharges a smooth flow. These types of pumps can handle any liquid that does not contain hard or abrasive solids. Unlike a centrifugal pump the rotary design will deliver a capacity that is not greatly affected by pressure requirements at either the suction or discharge ends.