The GDS Infinite Volume Controller (IVC) is designed to remove constraints of volume capacity such that a test can continuously flow fluid under pressure control or volume control.

When using a single pressure/volume controller, once the volumetric capacity of the barrel has been reached (either 100% full or 100% empty), the user is required to manually fill or empty the controller accordingly. By connecting two GDS pressure/volume controllers in parallel, the IVC system automatically switches between them when they run out of volume thus providing a seamless supply of pressure with unlimited volume capacity. The IVC can be used with any two pressure controllers from the GDS range, i.e. advanced, standard or enterprise.