DG4V-3-7A-M-W-B-40

The DG4V-3-7A-M-W-B-40 valve is manufactured by Vickers for the Directional Control Valves series and directs hydraulic flow in automated circuits where remote electrical control is required. It is solenoid operated, so an electrical signal shifts the spool without manual effort. The valve is a single stage model, meaning the solenoid moves the spool directly for simple response. Size D03 (NG06) dimensions let it fit compact power units while meeting common equipment footprints. A rated flow of 80 L/min (21 gpm) supports medium-capacity actuators without excessive pressure drop. The P, A, and B ports tolerate continuous pressures up to 350 bar (5000 psi), enabling work circuits that demand high force. Subplate or manifold mounting simplifies replacement and permits removal without disturbing hard piping.

The ISO 4401-03 (CETOP 3/NG06) interface standardizes the port layout, easing interchangeability with other D03 valves. T-port pressure is limited to 210 bar (3000 psi), so return lines and tanks must be sized accordingly. Compatibility with petroleum oils allows use with conventional hydraulic fluids in most industrial machines. A fluid cleanliness level of ISO 4406 19/17/14 is required to protect the spool lands from wear and sticking. Viton (FKM) seals withstand aggressive additives and maintain elasticity across the service range. The working temperature window of −20 to +70 °C keeps the elastomers and coil within safe limits for indoor or mobile equipment. Together, these features support reliable directional control in automated hydraulic systems.