KBFDG4V-3-2C20N-Z-M1-PH7-H7-11

The KBFDG4V-3-2C20N-Z-M1-PH7-H7-11 directional valve is produced by Vickers as part of the Directional Control Valves series. It converts electrical commands into proportional spool movement for closed loop hydraulic automation. The valve operates from a 24 VDC supply voltage, allowing direct connection to standard machine control power. A rated pressure of 350 bar on ports P, A, and B supports high-force actuators without compromising durability. The hydraulic passages deliver a rated flow of 20 L/min at a 5 bar differential per path, so circuit designers can size pumps and lines accurately. Meter-in and meter-out spool metering permits balanced control during both extension and retraction strokes. The body uses the ISO 4401-03 (D03) mounting interface to fit common subplates. Electrical command is ±10 VDC, while the spool begins to react at a 0.25 V command threshold to achieve fine position control. Dynamic performance is defined by a 17 ms 0–100 % step response, providing rapid pressure or flow shifts in servo applications.

For environmental and electrical limits, the valve tolerates ambient temperatures up to 70 °C, extending service in hot enclosures. Port T can withstand 105 bar back pressure, maintaining function when return lines see elevated loads. Internal electronics draw a maximum of 3 A, which guides fuse and power supply selection. The enable line must exceed 8.5 V before the drive becomes active, and the disable level falls below 6.5 V to guarantee a clear shutdown margin. A differential monitor output of ±10 VDC mirrors spool position for diagnostic feedback. Sealing gaskets and connector designs achieve IP65 and IP67 protection ratings, allowing wash-down or outdoor service. Pulse-width modulation operates at 10 kHz, reducing noise and improving current resolution in the proportional solenoids. These parameters complete the functional profile required for integrating the valve into precise hydraulic motion systems.