Valve arrangement for a hydraulic system

摘要

In a valve arrangement for controlling a plurality of hydraulic consumers, to be actuated simultaneously, independently of load, a pressure balance is allocated to each consumer. The pressure balance can be adjusted in the opening direction by the pressure downstream of the allocated measuring choke and a spring and in the closing direction by the maximum respective load pressure. The load pressure of the load-carrying consumer is fed via a stop valve downstream of the directional control valve into the signal line. The valve arrangement permits many uses, preferably also in combination with a directional control valve with which the direction of flow through the pressure balance can be reversed, so that one pressure balance is sufficient for one double-acting consumer. In addition, the pressure medium fed into the signal line is delivered by the pump and not by the consumer so that stalling is avoided when starting a consumer.