Vickers DG5S-8-2A-M-W-B-20 Two-Stage, Four-Way Directional Hydraulic Valve. Sliding spool, rated pressure 210 bar (3000 psi). NFPA D08 (ISO 4401-08) interface.
Spool closed to T all ports. Spring offset to A port. 1/2 NPT thread wiring housing. 2 mm (0.080 in) pilot valve orifice. See pictures above for more details.
It is assumed that the unit(s) will be installed and operated by qualified personnel.