MOOG hydraulic servo valve
5 week ago
Product details
MOOG hydraulic servo valves are the core components of electro-hydraulic servo control systems, developed by MOOG Inc. in the United States. They convert minute electrical signals into high-power hydraulic outputs (flow or pressure), enabling precise control over actuators. Below is a detailed introduction covering their technical features, application areas, product series, and selection recommendations.
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I. Technical Features
1. High Dynamic Response: Utilizing structures such as torque motors and nozzle-flapper valves, MOOG hydraulic servo valves offer high response frequencies, enabling rapid tracking of input signal changes to meet complex dynamic operational requirements. For instance, certain models achieve response times in the millisecond range, suitable for high-frequency vibration control scenarios.
2. High Control Precision: Through precise mechanical or electrical feedback mechanisms, they achieve accurate regulation of flow or pressure, with control errors controllable at the micrometer level, ensuring stable system operation.
3. Long Service Life: Key components like spool valves and nozzles are made from high-strength alloy materials and undergo special surface treatments (such as hard chrome plating or ceramic coatings), reducing wear and corrosion and enhancing durability.
4. Compact Structure: Some models incorporate giant magnetostrictive material (GMM) transducers to further reduce size, facilitating integration into compact hydraulic systems.
5. Multiple Control Modes: Supporting various control interfaces, including analog and digital signals, they seamlessly connect with different types of controllers to meet diverse application needs.
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II. Application Areas
MOOG hydraulic servo valves are widely used in fields demanding high control precision and rapid response, including but not limited to:
1. Aerospace: Employed in aircraft control surface actuation, satellite attitude adjustment, and rocket engine thrust vector control, ensuring flight stability and maneuverability.
2. Industrial Automation: Achieving precise position, speed, and pressure control in injection molding machines, blow molding equipment, and metallurgical machinery, enhancing production efficiency and product quality. For example, in precision CNC machine tools, MOOG servo valves significantly improve machining accuracy.
3. Automotive Testing and Simulation: Utilized in automotive chassis testing and engine testing simulation systems to replicate hydraulic loads under actual driving conditions, accelerating product development cycles.
4. Energy Sector: Enabling precise regulation of blade angles and water flow in wind and hydroelectric power generation equipment, optimizing energy conversion efficiency.
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III. Product Series
MOOG offers a diverse range of hydraulic servo valve series to cater to various application scenarios. Below are some typical series and their characteristics:
1. J761 Series:
• Features a card-type control amplifier with a compact size and 24V DC power supply.
• Suitable for space-constrained applications, such as aerospace equipment.
2. D661 Series:
• Accepts analog signals to modulate flow output, widely used in industrial automation.
• Certain models, like the D661-4697C, employ high-performance materials for excellent wear and corrosion resistance.
3. G631 Series:
• Originating from Germany, it offers stable performance, long service life, and significant energy-saving effects.
• Ideal for applications demanding high reliability and energy efficiency, such as energy equipment.
4. 760N Series:
• Robust structure and long service life, suitable for harsh operating conditions.
• Excels in heavy industries like metallurgy and mining.
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