Abstract: A vortex separator includes a vortex chamber having a circular cross section, an inlet for delivering a fluid to the vortex chamber, a gas outlet through which gas present in the fluid exits the vortex chamber, a membrane positioned to substantially prevent liquid from passing through the gas outlet, and a liquid outlet through which liquid present in the fluid exits the vortex chamber.

Abstract: A liquid depth-operated valve assembly for use in a zero gravity environment includes a Pitot pump disposed within a centrifugal separator configured to separate an air and a liquid from one another. Also included is a Pitot opening disposed at a first radial location relative to a substantially central location of the centrifugal separator. Further included is a depth-sensing port disposed at a second radial location along the Pitot pump, the second radial location disposed radially inwardly of the first radial location, the depth-sensing port in operative communication with a valve.