Functional Description

The directional control valves DCV 03 consist of housing (1), a control spool (5) with two centering springs (4) and cylindrical operating solenoids (2, 3). The three-position directional valves are fitted with two solenoids and two springs. Two-position directional valves have either one solenoid and one return spring or two solenoids and a detent assembly. The operating solenoids are d.c. solenoids. For a.c. supply the solenoids are provided with a rectifier, which is integrated directly into the connectors. The plug connectors (6, 7) can be turned by 90°. By loosening the fixing nut (8), the solenoids can be turned arbitrarily in the range of 360°, or replaced. This enables the operating coils to be replaced without opening the pressure-tight spaces.

In the case of solenoid malfunction or power failure, the spool of the valve can be repositioned by manual override (9), provided the pressure in T-port does not exceed 25 bar. The basic surface treatment of the valve housing (1) is phosphate coated and the operating solenoids (2, 3) are zinc coated.

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