Valve arrangement for pressure medium supply hydraulic consumer has consumer pressure limitation valve with pilot valve unit

摘要

The valve arrangement has a spring-loaded pretension valve (12) and a valve (16) to limit max. consumer pressure. The pressure limitation valve has an associated pilot valve unit (18,28) to alter the max. consumer pressure set by the limitation valve. A pressure limitation connection regulated by a retainer body permits a connection between a pressure connection (P) and a tank connection (T). The pilot valve unit incorporates several pressure limitation valves (22,23,24), which are selectively switched via a path valve (26).