PRESSURE REGULATING DEVICE FOR HYDRAULIC SYSTEMS

摘要

Described herein is a device for regulating the pressure in hydraulic systems in which there is at least one nozzle (50) for determining the section of passage of the water in the device and in which there are provided switching means for moving the tap (20) between at least one enabling position, in which the flow of water passes only through the calibrated hole of the nozzle, and at least one disabling position, in which the water flows also through bypass passages made on the outer surface of the nozzle.