PILOT-OPERATED PRESSURE CONTROL VALVE

摘要

The invention relates to a pilot-controlled pressure control valve having a pilot control stage, on the pilot control piston (46, 48) of which a pilot control spring (50) acts in a closing direction of the pilot control stage. The pilot control spring is supported on a spool valve (54), which can be positioned by a control pressure against the force of an overload spring (58) for setting a preload of the pilot control spring. At the same time, in a loaded position, in which the pilot control valve has minimum preload, the spool valve rests against a stop (70, 70a). According to the invention a preload of the overload spring and a position of the stop can be set independently of one another.