Product Overview
The MOOG D661-4636 / G60KOAA5VSX2HA is a high-performance servo proportional valve from the MOOG D661 series, engineered for precise electrohydraulic control of position, velocity, force, and pressure in demanding industrial and mobile applications. This two-stage servo valve utilizes a robust torque motor pilot stage driving a high-capacity spool main stage, delivering exceptional dynamic response, minimal hysteresis, and superior flow linearity. The D661 platform is widely recognized as the industry benchmark for closed-loop hydraulic control, offering outstanding resolution and repeatability in the most critical motion control systems. With its ISO 4401 standard mounting interface and integrated spool position feedback, this valve ensures seamless integration into both new OEM designs and existing MOOG-controlled systems requiring a direct-fit replacement.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Servo Proportional Valve (Two-Stage, Spool Type) |
| Model Designation | D661-4636 / G60KOAA5VSX2HA |
| Manufacturer | MOOG Inc. |
| Operating Pressure | Up to 350 bar (5,080 psi) rated — standard industrial grade |
| Rated Flow Capacity | Model-code dependent (G60 spool designation), nominal per MOOG D661 sizing tables |
| Pilot Stage | Torque motor with integrated spool position feedback |
| Mounting & Connection | ISO 4401 standard subplate mounting interface |
| Electrical Interface | Standard MOOG valve connector with position transducer output |
| Hysteresis & Linearity | Ultra-low hysteresis, high-resolution spool positioning |
Engineering Features & Advantages
- Precision Performance: The torque motor pilot stage and position-feedback spool design deliver extremely fast dynamic response, minimal hysteresis, and excellent flow linearity for accurate closed-loop control of position, velocity, and force.
- High-Resolution Metering: Precision spool land geometry ensures fine metering capability and repeatable performance across the full command range, critical for high-accuracy motion profiles.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with robust construction that withstands high pressure cycling, contamination, and demanding duty cycles.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original MOOG D661 OEM standards, ensuring drop-in replacement without modification to manifolds or control electronics.
- Integrated Feedback: On-board spool position transducer provides closed-loop valve control, maintaining precise spool positioning regardless of flow forces or pressure fluctuations.
<h3
PRODUCT IMAGES
MOOG D661-4636 / G60KOAA5VSX2HA Servo Proportional Valve
âš¡ Emergency Plant Maintenance & Ready-to-Ship Notice:
- Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
- Fast Dispatch: In-stock units ready for same-day dispatch via DHL / FedEx Express directly to your plant.
- Pre-Shipment Verification: High-definition photos, video testing runs, and serial number verification provided prior to shipment.
- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine MOOG D661-4636 / G60KOAA5VSX2HA Servo Valve. This Germany-made high-performance hydraulic component features a two-stage design with mechanical feedback, delivering leak-free, reliable fluid control for heavy-duty industrial systems.