Product Description:

The 732540-KDG4V-3 belongs to the Vickers Amplifier Boards series manufactured by Vickers. This board drives proportional directional valve assemblies in hydraulic machinery, translating low-level command signals into regulated spool movement so flow and pressure can be adjusted accurately inside automated presses, machining centers, and material-handling lines. Its slender form factor simplifies panel layout when multiple boards are stacked beside PLC and drive modules.

The target valve is solenoid controlled, allowing fast magnetic actuation that pairs well with closed-loop electronics. The valve is spring-centered, ensuring the spool returns to neutral when power is removed. Connection follows ISO4401-03 (NFPA D03, CETOP 3), so manifolds with that pattern can be used without re-machining. The housing measures 9.370 in long, 1.900 in wide, and 3.400 in high, giving enclosures a predictable footprint. The board can command hydraulic circuits up to 350 bar (5000 psi), providing capacity for high-pressure cylinders and motors. It is sized for a single-stage spool and is compatible with anti-wear hydraulic oils, where viscosity stability supports proportional control. Because no feedback sensor is integrated, external transducers handle position verification in systems that need it.

The commanded valve mounts on a subplate, which simplifies service by keeping pressure passages in the manifold block. Operation requires anti-wear hydraulic oils filtered to ISO 4406 17/15/12 to keep particulate levels low and minimize spool wear. Maintaining this cleanliness level reduces valve hysteresis and extends service intervals. The hydraulic fluid may enter the assembly at ambient temperatures from -20 °C to 70 °C, so seals and electronics must tolerate this span without loss of function. Under those cleanliness and temperature limits, the valve maintains proportional flow control without added pilot-stage complexity.