Product Overview
The Eaton Vickers KHDG4V 3 02 157451 21 (also referenced as 02-157451) is a high-performance proportional directional valve from the Vickers KHDG4V series, engineered for precise electro-hydraulic control of flow direction and magnitude in demanding industrial hydraulic systems. This valve utilizes a proportional solenoid actuator acting on a precision-machined spool within a robust cast housing, enabling infinitely variable flow metering proportional to the electrical input signal. As a pilot-operated, spring-centered four-way directional control valve, it serves as a critical interface between electronic control systems and hydraulic actuators, delivering smooth, controllable motion in applications requiring accurate velocity and position regulation. The KHDG4V series is widely recognized for its fast dynamic response, low hysteresis, and excellent repeatability, making it a preferred choice for closed-loop and open-loop proportional control architectures.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Proportional Directional Valve (Four-Way, Pilot-Operated) |
| Model Designation | KHDG4V 3 02 157451 21 / 02-157451 |
| Manufacturer | Eaton Vickers |
| Operating Pressure | Standard Industrial Grade (Up to 315 bar rated) |
| Actuation Type | Proportional Solenoid with Integrated Position Feedback |
| Spool Configuration | Four-Way, Three-Position, Spring-Centered |
| Mounting & Connection | Standard ISO / Manufacturer Interface (Subplate Mounting) |
| Control Signal | Analog Proportional (Voltage/Current Command) |
| Hysteresis | Low Hysteresis for High Repeatability |
Engineering Features & Advantages
- Precision Proportional Control: The KHDG4V valve delivers infinitely variable flow metering proportional to the electrical command signal, enabling accurate velocity and position control of hydraulic actuators with minimal hysteresis and excellent repeatability.
- Fast Dynamic Response: Optimized spool geometry and high-performance proportional solenoids ensure rapid response times, making this valve ideal for closed-loop control systems requiring high bandwidth and precise motion profiling.
- Robust Industrial Construction: Built with a durable cast iron housing and precision-ground spool and sleeve assembly, the KHDG4V is designed for continuous operation under severe industrial conditions, including high cycle rates and elevated pressures.
- Spring-Centered Fail-Safe Design: In the event of power loss or signal failure, the spring-centered spool returns to the neutral position, ensuring safe system behavior and preventing uncontrolled actuator movement.
- Industrial Reliability: Constructed for continuous duty with durable, corrosion-resistant materials and proven engineering for maximum system uptime.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original Eaton standards, allowing straightforward retrofit into existing hydraulic systems without rework.
Typical Industrial Applications
As a pilot-operated, spring-centered four-way directional control valve, it serves as a critical interface between electronic control systems and hydraulic actuators, delivering smooth, controllable motion in applications requiring accurate velocity and position regulation.
PRODUCT IMAGES
Eaton Vickers KHDG4V 3 02 157451 21 / 02-157451 Proportional Directional Valve
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Shop the genuine Eaton Vickers KHDG4V 3 02 157451 21 / 02-157451 Solenoid Operated Directional Control Valve. This Germany-made 24V DC hydraulic component features a 4-way 3-position spring-centered design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.