Product Overview
The MOOG D634-341C / R40KO2MONSS2 is a high-performance, two-stage servo proportional valve engineered by MOOG, the global benchmark in electrohydraulic motion control. Featuring a robust pilot-operated design, this valve utilizes a precise torque motor pilot stage to actuate a high-capacity main spool, delivering exceptional dynamic response and precise flow control. The D634 series is specifically designed for demanding industrial applications requiring high resolution, low hysteresis, and superior repeatability. The R40KO2MONSS2 configuration denotes a specific spool geometry and seal arrangement optimized for standard industrial hydraulic systems, ensuring seamless integration into closed-loop control architectures for position, velocity, and force regulation.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Servo Proportional Valve (Two-Stage, Pilot Operated) |
| Model Designation | D634-341C / R40KO2MONSS2 |
| Operating Pressure | Up to 315 bar (Rated), 350 bar (Peak) |
| Mounting & Connection | Standard ISO 4401 / CETOP 5 (NG10) Interface |
| Actuation Type | Electrohydraulic Torque Motor Pilot with Main Spool Position Feedback |
| Rated Flow (Δp = 35 bar) | Up to 100 L/min (Dependent on spool configuration) |
| Hysteresis | ≤ 0.5% (Typical, high-precision metering) |
| Response Time | ≤ 10 ms (Step response, high dynamic performance) |
Engineering Features & Advantages
- Precision Performance: The two-stage pilot-operated design with integrated spool position feedback ensures extremely accurate flow metering and minimal hysteresis, critical for high-gain closed-loop motion control systems.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, featuring a robust torque motor and wear-resistant spool and sleeve assembly for extended service life.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original MOOG D634 series mounting patterns and electrical interfaces, ensuring drop-in replacement without system modification.
- Superior Dynamic Response: Fast step response and high frequency response characteristics enable precise control of acceleration and deceleration profiles in high-cycle industrial machinery.
Typical Industrial Applications
This MOOG servo proportional valve is ideally suited for high-precision motion control in plastic injection molding machines, metallurgical presses, CNC machine tools, and heavy-duty testing rigs. It is also widely deployed in marine and offshore hydraulic systems, turbine control actuators, and continuous casting equipment where precise force, position, and velocity regulation are paramount.
PRODUCT IMAGES
MOOG D634-341C / R40KO2MONSS2 Servo Proportional Valve
⚡ 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 D634-341C / R40KO2MONSS2 Servo Proportional Directional Control Valve. This Germany-made 24V DC hydraulic component features a high-response spool design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.