Vickers | KDG4V3S2C19NMKUP1H560
KDG4V3S2C19NMKUP1H560
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The KDG4V3S2C19NMKUP1H560 proportional directional valve belongs to the KDG Non-feedback Proportional Valves series from Vickers and directs flow in hydraulic automation systems. It is a proportional directional valve with a closed-center spool that blocks all ports at neutral. The spool is spring centered and actuated by dual solenoids, providing automatic return when de-energized. Each solenoid coil is rated for 24 V DC, shows 7.3 Ω resistance at 20 °C, and offers 29 mH inductance at 1000 Hz for predictable electrical performance. Continuous service allows up to 1.6 A through the coil at 50 °C without exceeding thermal limits. System responsiveness is defined by a −3 dB frequency response of 18 Hz, supporting mid-range control bandwidth.
The hydraulic endures 350 bar (5000 psi) on pressure and work ports while the tank line withstands 100 bar (1450 psi). Flow control operates under meter-in and meter-out conditions, giving symmetrical modulation during load changes. The valve attaches to manifolds that follow ISO 4401-AB-03-4-A, simplifying plate selection. With a 10 bar differential in a looped test circuit, the rated flow reaches 19 L/min. Drive accuracy benefits from 4 % hysteresis when supplied by a PWM amplifier and 1 % repeatability across repeated strokes. Overall mass is 2.3 kg, allowing single-person installation.
Technical Specifications
Coil Inductance (h, 1000 Hz)
29 mH
Coil Resistance (h, 20 C)
7.3 Ω
Coil Voltage Rating
24 V DC
Frequency Response (−3 Db)
18 Hz
Hysteresis (pwm Drive)
4%
Max Current (h Coil @ 50 C)
1.6 A
Max Pressure (p, A, B)
350 bar (5000 psi)
Max Tank Line Pressure
100 bar (1450 psi)
Metering Condition
Meter-In And Meter-Out
Mounting Pattern
ISO 4401-AB-03-4-A
Rated Flow (looped, Δp 10 Bar)
19 L/min
Repeatability
1%
Spool Type
Closed Center
Spool/spring Arrangement
Spring Centered, Dual Solenoid
Valve Type
Proportional Directional Valve
Weight
2.3 kg
1620 Old Apex Road
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