Product Overview
The Eaton KDG4V-5-33C50N-Z-M-U-H7-30 is a high-performance proportional directional valve from the Vickers KDG4V series, engineered for precise electro-hydraulic control of flow direction and magnitude in demanding industrial systems. Utilizing a robust solenoid-actuated spool design, this valve delivers infinitely variable flow control proportional to the electrical input signal, enabling smooth acceleration and deceleration of actuators without pressure spikes or shock loads. The KDG4V-5 platform is widely recognized for its exceptional response characteristics, low hysteresis, and repeatable metering performance, making it a preferred choice for closed-loop and open-loop motion control applications. With a nominal flow capacity of 50 L/min (NG10 / CETOP 5 size), this valve serves as a critical interface between electronic control systems and hydraulic power circuits in modern industrial machinery.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Proportional Directional Valve (Vickers Proportional Valve) |
| Model Designation | KDG4V-5-33C50N-Z-M-U-H7-30 |
| Series / Platform | Vickers KDG4V-5 (NG10 / CETOP 5 / ISO 4401-05) |
| Spool Configuration | 33C — Closed Center, P→A/B & T Ports Blocked in Neutral |
| Nominal Flow Rate | 50 L/min (at Δp = 7 bar per land, nominal) |
| Operating Pressure | Up to 315 bar (P, A, B ports); T port rated to 160 bar |
| Actuation Type | Proportional Solenoid (dual solenoid, wet-pin armature design) |
| Electrical Interface | H7 — DIN 43650 / ISO 4400 connector, 24V DC nominal coil |
| Mounting & Connection | Subplate mounting per ISO 4401-05 / CETOP 5 / NFPA D05 |
| Seal Material | N — Nitrile (NBR), suitable for mineral oil-based hydraulic fluids |
| Hysteresis | ≤ 5% of rated signal (typical, without dither) |
Engineering Features & Advantages
- Precision Performance: The proportional directional valve (vickers proportional valve) delivers precise, repeatable performance with low hysteresis and stable control across the full working range.
- 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.
- Rated Capability: Rated for pressure ratings up to 315 bar and flow rates up to 50 L/min, supporting stable operation across the full working range.
Typical Industrial Applications
With a nominal flow capacity of 50 L/min (NG10 / CETOP 5 size), this valve serves as a critical interface between electronic control systems and hydraulic power circuits in modern industrial machinery.
PRODUCT IMAGES
Eaton KDG4V-5-33C50N-Z-M-U-H7-30 Proportional Directional Valve
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Shop the genuine Eaton KDG4V-5-33C50N-Z-M-U-H7-30 Proportional Directional Valve. This US-made high-performance hydraulic component features a 4-way proportional design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.