Technical Specifications:

• Flow Capacity: Up to 200 L/min (53 GPM) at 35 bar pressure drop.
• Operating Pressure: Maximum 350 bar (5075 psi).
• Response Time: ≤9 ms for rapid adjustments at 210 bar.
• Frequency Response: Up to 500 Hz for high-speed applications.
• Feedback Mechanism: Built-in displacement sensor for closed-loop control.
• Electrical Interface: 24 V DC supply with 4-20 mA or ±10 V control signals.
• Mounting Standard: ISO 4401 compatibility for easy integration.

Functional Features:

• Servo Jet™ Pilot Stage: Utilizes a射流管 (servo jet) design for improved contamination resistance and reduced wear.
• High Precision: ±0.5% flow accuracy ensures consistent performance.
• Fault-Safe Function: Automatically reverts to a safe position during power loss.
• Compact Design: Space-saving structure with integrated electronics.
• Durable Construction: Hardened alloy materials for longevity in harsh environments.

Application Scenarios:

• Aerospace Testing: Flight simulator attitude control and engine thrust testing.
• Heavy Machinery: Hydraulic presses, rolling mills, and injection molding machines.
• Energy Sector: Turbine speed control and generator excitation systems.
• Material Processing: Pressure regulation in die-casting and composite molding.
• Metallurgical Equipment: Roll gap control in rolling mills and tension adjustment in continuous casting lines.

Advantages:

• High Dynamic Response: Ideal for applications requiring rapid adjustments.
• Energy Efficiency: Reduced power consumption compared to traditional designs.
• Low Maintenance: Self-cleaning orifices and robust construction minimize downtime.
• Versatility: Compatible with various hydraulic fluids and operating temperatures (-20°C to +70°C).

Industry Recognition:
The Moog D661-4064 is widely adopted in sectors demanding high reliability, such as aerospace, energy, and metal processing. Its compliance with MIL-STD-883 standards for vibration resistance further underscores its suitability for critical applications.

Compatibility Notes:

• Requires oil cleanliness of NAS 7 or better to prevent premature wear.
• Not recommended for systems operating below 150 bar, as this may lead to response delays.