Vickers | KDG4V333C30XMUG760
KDG4V333C30XMUG760
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The KDG4V333C30XMUG760 proportional valve belongs to the KDG Non-feedback Proportional Valves series and is produced by Vickers. Designed to modulate hydraulic flow without feedback sensors, it uses solenoid-controlled actuation to vary spool position in response to electrical input. A spring-centered build returns the spool to neutral when power is removed, ensuring fail-safe centering. The coil operates from a 12 V DC supply; its resistance of 1.55 Ω governs steady-state current, while an inductance of 4 mH at 1 kHz limits current rise for smoother motion. Continuous service is supported by a 100 % duty rating, and driver circuits must accommodate up to 3.5 A at 50 °C to reach full stroke. The P-blocked, A and B to tank spool configuration isolates pressure while venting work ports at neutral, and the valve meters up to 30 L/min through ports A or B for medium-capacity actuator control.
At 350 bar maximum operating pressure the valve withstands high system loads, and the tank line may see up to 210 bar without damage to internal seals. Installation follows the ISO 4401-AB-03-4-A mounting pattern, allowing interchange with common CETOP 03 subplates. Electrical hookup is made through an ISO 4400 (DIN 43650) connector, providing quick coil replacement and polarity reversal. The IP65 enclosure resists dust ingress and low-pressure water jets, which permits mounting on exposed machinery. To prevent silting, supplied fluid must meet an ISO 17/15/12 cleanliness code, extending spool and body life. The assembled unit weighs 2.4 kg so a single installer can position it without lifting gear. These characteristics give machine builders a compact proportional stage that is easy to wire, plate-mount, and pressurize within demanding hydraulic circuits.
Technical Specifications
Actuation Type
Solenoid Controlled
Build Type
Spring Centered
Coil Inductance @1000 Hz
4 mH
Coil Resistance @20 C
1.55 Ohm
Coil Voltage
12 V DC
Duty Rating
100% ED
Electrical Connection
ISO 4400 (DIN 43650)
Enclosure Rating
IP65
Fluid Cleanliness
17/15/12
Max Solenoid Current (50 C)
3.5 A
Maximum Operating Pressure
350 bar
Maximum Tank Pressure (t)
210 bar
Mounting Pattern
ISO 4401-AB-03-4-A
Rated Port Flow (a/b)
30 L/min
Spool Type
P Blocked, A & B To Tank
Weight
2.4 kg
1620 Old Apex Road
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