MOOG G761-3033B Two-Stage Electro-Hydraulic Servo Valve

MOOG G761-3033B belongs to the G761 series two-stage mechanical feedback electro-hydraulic servo valve. It adopts nozzle-flapper pilot stage and dry torque motor structure, converting analog electrical signals into continuously adjustable hydraulic flow for closed-loop motion control systems.

This four-way spool servo valve features high response speed, low hysteresis and excellent repeatability. It supports mineral hydraulic oil and fire-resistant phosphate ester fluid, widely used as critical spare parts for turbine control, metallurgical rolling mill and high-precision hydraulic test equipment.

Main Specifications

• Brand: MOOG
• Model: G761-3033B
• Structure: Two-stage, Mechanical Spool Feedback
• Max Working Pressure: 315 bar
• Rated Current: 40 mA
• Hysteresis: Less than 0.2%
• Resolution: Better than 0.1%
• Mounting Standard: ISO 10372 Size 04
• Fluid Medium: Mineral oil, phosphate ester fluid
• Operating Temperature Range: -29°C ~ +135°C

Core Functions

• Realize precise proportional control of hydraulic flow direction and flow rate according to analog command signals
• Support closed-loop control of position, velocity and force for hydraulic actuators
• Dry torque motor design avoids corrosion risks caused by direct contact with hydraulic medium
• Mechanical feedback rod ensures stable spool positioning and excellent control linearity
• Fast dynamic response adapts to frequent load fluctuation and high-speed adjustment scenarios
• Built-in pilot filter prevents particle contamination from blocking nozzle-flapper assembly
• Robust valve body structure withstands vibration and temperature changes in industrial environments
• Standard mounting pattern allows direct replacement during equipment overhaul and maintenance
• Maintain stable control accuracy under long-term continuous operating conditions
• Guarantee safe and reliable operation of high-precision hydraulic closed-loop control systems

Application Scenarios

• Thermal power plant steam turbine DEH electro-hydraulic control EH oil system
• Metallurgical rolling mill AGC hydraulic thickness closed-loop control equipment
• Industrial hydraulic simulation platform and material fatigue testing machines
• Oil & gas industry gas turbine and turbocompressor hydraulic control units
• Energy recovery turbine and waste heat power generation unit control systems
• Ship and offshore platform high-response precision hydraulic actuator equipment
• Aerospace component simulation test bench hydraulic servo control loops
• Hydraulic system renovation, overhaul and servo valve spare parts replacement projects
• MOOG G761 series servo valve spare parts inventory and maintenance supporting projects