Pre-control valve with path valve unit and jet system for high pressure jet has main valve body, elastic element, inflow channel and pre-control unit

摘要

The valve (1) has a connecting line (18) running from a secondary outflow aperture of the main valve cavity (13) to the valve outflow channel (9). Liquid can thus be supplied under high pressure to the outflow channel even when the valve is closed, without the direct connection between the inflow channel (8) and the outflow channel having to be used.