Maximum pressure regulatory valve with direct action, the PM3 valve is a direct action regulator, made in a modular version. It is available with limitation of pressure on P, on A, on B, on A and B, with limitation on A and B and cross -unloading, or with limitation on B and unloading in A, in four pressure adjustment fields. This valve is used as a pressure regulator of the hydraulic circuit or as a pressure peaks limit generated during the variation of movement of hydraulic actuators. It is supplied with adjustment screws with a recessed hexagon, locking nut and limitation of the maximum adjustment race.