Wandfluh’s spool valve in the nominal size NG6 was specially developed for applications in which leakages must be minimal, or in which a reduced dimension is required. The valve can be operated with input pressures of up to 350 bar and switches volume flows of up to 10 l/min securely and reliably. The leakage is 4-6 ccm/min at 200 bar. The valve is designated as WDEFA06…-Z546 and can be operated with all Wandfluh standard solenoid coils in the size 37×40 mm.