Smooth positioning and load-independent motion control have been standard for Hawe’s proportional spool valves, type PSL/PSV. A new size is a scaled-down version with more than 50 lpm at 420 bar that features the same functionality. Its compact takes up less space in the hydraulic system at much reduced cost. Typical applications include truck-mounted cranes, municipal trucks, lifting devices, logging equipment and concrete delivery booms.