Vickers 02-154278 KDG4V Series 4 Way Proportional Hydraulic Directional Valve, Closed Center Bleed A and B Spool Type, 5000 psi Maximum Pressure, 24 VDC, 5 GPM Flow Rate: Amazon.com: Industrial & Scientific
Vickers DG4V Hydraulic Control Directional Solenoid Valves
Eaton Vickers Directional Control Valve DG4V-3-6BL-M-U-H7-60 NOS – governmenttransitsurplus.com