Abstract: A device for self-regulation and reduction of an outlet pressure (Ps), starting from an inlet pressure (Pe), designed to equip a paint spraying device, the self-regulation and reduction device including an element (28) for equalizing the output pressure at a pilot pressure (Pp) and a valve (30) that makes it possible to regulate and reduce the inlet pressure controlled by the equalizing element, so as to limit the outlet pressure by keeping the pressure essentially constant in an independent manner, the valve including a passage opening (42) more or less sealed by a sealing element (46) connected by a rod (50) to the equalizing elements (28), characterized in that the rod (50) connecting the equalizing element (28) and the sealing element (46) do not pass through the passage opening (42), the equalizing element (28) and the sealing element (46) being placed on the same side relative to the passage opening.