Abstract: A fluidic valve allowing to propel and sustain a moving device on an air-cushion, by means of a fluid under pressure issued from caissons serving as guide-rails, through the opening, when the moving device travels, of valves forming air-locks and drawers, said valves comprising a sleeve perforated so as to provide the valves with fluid towards the outlet, in a laminar discharge, with venturi and vortex effects intended to suck up the movable obturator towards the outlet, a duct or a fluid container. An over-pressure caused by a movable object passing at the outlet of the sleeve drives the movable obturator downwards, disclosing the lights of the sleeve. The fluid leaves the container. If the object is removed, the fluid flows more quickly and, thanks to venturi and vortex effects, a depression occurs, which drives the movable obturator upwards, thus stopping the outflow of the fluid.