These directional spool valves are designed as valve bank. Actuation is via directlyacting pressure resistant single stroke solenoids (wet armature); type SWS may becontrolled also via twin solenoids enabling two speed rates or via prop. solenoidsoptionally with a stroke limitation. Versions with ATEX-approval are available as well.Every valve bank consists of a connection block or adapter plate (for direct mountingonto power packs), valve sections, and an end plate all held together by tension rods.The valve sections type SWS can be combined with consumer sided ancillary blockswith various options e.g. check-, over-center-, or pre-load valves. Another option arecheck valves, throttles, orifices or flow controllers on the pump side. These directionalspool valves are mainly used at mobile applications.