Product Overview
The MOOG D661-4469C / G75JOAA6VSX2HA is a high-performance servo proportional valve from the MOOG D661 series, engineered for precise electrohydraulic control of position, velocity, pressure, and force in demanding industrial and motion control systems. Utilizing MOOG’s proven two-stage servo valve architecture, the D661 platform combines a torque-motor pilot stage with a spool-type main stage to deliver fast dynamic response, high resolution, and excellent repeatability. The valve features integrated onboard electronics (OBE) for closed-loop spool position control, enabling direct interface with analog or digital command signals. With its robust construction and high-pressure capability, this valve is a direct-fit solution for applications requiring accurate, high-bandwidth hydraulic actuation.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Servo Proportional Valve (Two-Stage, Spool-Type) |
| Model Designation | D661-4469C / G75JOAA6VSX2HA |
| Series / Platform | MOOG D661 Series with Onboard Electronics (OBE) |
| Operating Pressure | Up to 350 bar (5,080 psi) rated system pressure |
| Rated Flow | Nominal 75 L/min at 70 bar valve pressure drop (per model code G75) |
| Pilot Stage | Torque-motor driven nozzle-flapper pilot stage |
| Main Stage | Four-way, four-land spool with position feedback |
| Command Signal | Analog ±10 V DC (standard OBE interface) |
| Mounting & Connection | ISO 4401 / CETOP subplate mounting, standard MOOG interface |
| Seal Material | Fluorocarbon (FKM) seals, compatible with mineral-based hydraulic fluids |
Engineering Features & Advantages
- Precision Performance: The torque-motor pilot stage and closed-loop spool position control deliver high resolution, minimal hysteresis, and excellent repeatability for accurate metering of flow and pressure.
- High Dynamic Response: Optimized spool and pilot stage design provides fast step response and high frequency bandwidth, essential for closed-loop position and force control applications.
- Integrated Onboard Electronics: Factory-configured OBE simplifies wiring, reduces external signal conditioning requirements, and ensures consistent valve-to-valve performance.
- Industrial Reliability: Designed for dependable long-term operation in demanding industrial environments, with quality bearings and sealing systems ensuring extended maintenance intervals.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original MOOG standards, allowing straightforward retrofit into existing hydraulic systems without rework.
Typical Industrial Applications
With its robust construction and high-pressure capability, this valve is a direct-fit solution for applications requiring accurate, high-bandwidth hydraulic actuation.
PRODUCT IMAGES
MOOG D661-4469C / G75JOAA6VSX2HA Servo Proportional Valve
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Shop the genuine MOOG D661-4469C / G75JOAA6VSX2HA Servo Valve. This Germany-made 24 VDC hydraulic component features a high-response two-stage design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.