The hydraulically actuated spool valve has been optimised for a higher flow rate with a smaller pressure drop. In addition, the range of applications for lower ambient temperatures and higher corrosion protection has been extended. The valve can switch volumes up to 80 l/min with up to 350 bar and is available as a 2-way or 3-way function.
The «Z604» execution allows use for temperatures down to -40° C. The direct operated valve of nominal size NG6 is available as a 4/2-way and 4/3-way function with the designation WFAFA06. It controls the direction of flow and thus in most cases the direction of movement or rotation of hydraulic actuators.
Further details can be found in data sheet 1.7-33.