The hydraulically actuated 3/2 directional spool valve WKH05330 is a direct- acting cartridge valve. In de-energized mode it permits a flow from port 2 to 3 while port 1 is blocked. When the valve is hydraulically operated, i.e., when there is an increase in pressure at port 1 against the spring force, the valve permits flow from port 1 to 2 while port 3 is blocked. Cavity (metric) M 20 x 1.5. Qmax = 15 l/min Pmax = 250 bar