D765-102-4 | MOOG | High-frequency Servo Valve

Description

MOOG D765-102-4 High-Performance Servo Valve

As a premier Moog distributor, Saulcontrol delivers precision motion control solutions for critical industrial applications. Our products come with comprehensive 1-year warranties and expert technical support from hydraulic specialists.

Technical Specifications

Main Features and Advantages

The D765-102-4 represents precision engineering with aerospace-grade tolerances for ultra-high dynamic performance. Featuring Moog’s direct-drive voice coil technology, it achieves an exceptional 250Hz frequency response for vibration control and precise positioning applications. The valve’s symmetric spool design provides consistent bidirectional performance with minimal hysteresis (≤0.5%), ensuring nanometer-level positional accuracy in high-speed applications.

D635-671E

Advanced thermal compensation maintains stable null position over the entire temperature range (-54°C to +135°C), critical for aerospace and defense applications. Integrated dual-position sensors enable continuous health monitoring through Moog’s ISM (Integrated System Monitoring) protocols. The valve’s rugged construction withstands shock loads up to 100g and vibration to 20g RMS. Hermetic sealing and specialized filtration options allow reliable operation in contaminated environments where conventional valves would fail.

Application Areas

Aerospace Testing: The D765-102-4 drives electrohydraulic actuators in flight simulator platforms requiring extreme bandwidth for accurate motion cues. Its microsecond-response capabilities are essential for structural fatigue testing of aircraft components where load profiles must replicate actual flight data with exacting precision.

Semiconductor Manufacturing: Photolithography equipment utilizes this valve’s nanometer positioning accuracy for wafer stage control in sub-5nm processes. In wafer dicing machines, its vibration-cancelling capabilities ensure clean cuts without micro-fractures. For chemical mechanical polishing, the valve maintains uniform pad pressure despite changing wafer topography.

Related Products

D765-102-2 – Lower flow version for compact applications
D765-103-4 – Enhanced pressure version (400 bar)
G122-828A – Compatible high-bandwidth servo amplifier
J745-001 – Calibration fixture for field servicing
D661-Z435 – Compact industrial proportional valve
D792 – Next-generation digital servo valve
BVI-340 – Valve interface module for ISM diagnostics

Installation and Maintenance

Installation Preparation: When installing the D765-102-4, maintain pristine hydraulic fluid quality exceeding NAS Class 5. Use dedicated mounting fixtures to minimize pipe strain effects on precision metering. Install in-plane with actuator motion axes to reduce Coulomb friction errors. For integration with G122-828A amplifiers, implement copper plane grounding and shielded twisted pairs for signal integrity in high-EMI environments.

Maintenance Suggestion: Perform monthly servo current analysis to detect developing spool wear. Maintain filtered air purge on electrical connectors in harsh environments. Record baseline frequency response using Moog VHMS software during commissioning for comparison during preventive maintenance. Replace internal filters annually or when ΔP exceeds 7 bar. Keep critical spares including J745-001 calibration kits for field servicing.

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Email: sales@saulcontrol.com
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