Первым first consider the electrohydraulic servo valve from the MOOG brand — model G413-604A, designed for precise control of fluid flow and pressure in high-performance industrial systems. This device combines advanced hydraulic design with robust electronics, making it indispensable in aerospace, automotive testing, metalworking, and precision manufacturing, where dynamic response and reliability under heavy loads are critical.
MOOG G413-604A features integrated position feedback sensors and a modular control interface, enabling seamless integration with PLC controllers (such as Siemens S7-1500 or Allen-Bradley ControlLogix) via analog signals (4–20 mA) or digital protocols (PROFINET). This allows the servo valve to be easily incorporated into closed-loop control systems, ensuring rapid response to changing command signals.
Notably, MOOG G413-604A is constructed from high-strength alloy steel with a corrosion-resistant coating, ensuring durability in harsh environments, including exposure to industrial hydraulic fluids and extreme temperatures. Its compact design facilitates installation in space-constrained applications, such as test rigs or robotic hydraulic systems. Complete information about MOOG G413-604A — including technical manuals and wiring diagrams — can be found at the link:
Type — 4-way proportional servo valve with feedback control;
Operating pressure range — 10–35 MPa;
Maximum flow rate — 120 L/min;
Response time (90% of signal) — ≤20 ms;
Control spool type — lapland-style with pressure compensation.
Electrical characteristics:
Control signals — 4–20 mA (analog), PROFINET (digital);
Supply voltage — DC 24 V (18–30 V);
Current consumption — ≤350 mA;
Isolation — 2500 V AC (between electronics and hydraulic section).
Operational characteristics:
Housing material — alloy steel 4140;
Protection class — IP65 (external components);
Operating temperature range — -20 °C to +70 °C;
Mean Time Between Failures (MTBF) — ≥200,000 hours;
Compatible fluids — mineral oils (ISO VG 32–68), synthetic esters.
Преимущества и особенности
High dynamic performance: MOOG G413-604A delivers a response time of ≤20 ms, making it ideal for applications requiring rapid adjustments, such as dynamic testing of automotive suspension systems or precision pressing operations where load changes occur frequently.
Pressure-compensated design: The integrated pressure compensation ensures consistent flow rates regardless of fluctuations in supply pressure, maintaining stability in systems with variable load conditions — a key advantage in metal forming presses.
Dual protocol support: Compatibility with both analog (4–20 mA) and digital (PROFINET) signals allows MOOG G413-604A to integrate seamlessly with legacy and modern automation systems, reducing retrofitting costs.
Robust construction: The alloy steel housing and IP65 protection class ensure resistance to vibration, dust, and moisture, making it suitable for harsh industrial environments like foundries or offshore platforms.
Predictive diagnostics: Built-in condition monitoring features transmit real-time data on valve performance, enabling proactive maintenance and minimizing unplanned downtime. Additional application examples are available at:
The MOOG G413-604A servo valve is widely used in high-precision hydraulic systems:
Aerospace (flight simulation): In full-motion flight simulators, MOOG G413-604A controls hydraulic actuators that replicate aircraft movements, with its rapid response (≤20 ms) ensuring realistic handling characteristics. Signals from a Siemens S7-1500 PLC via PROFINET synchronize valve operation with simulator software. Specific case studies are available at:
Automotive (durability testing): On automotive test rigs, the valve simulates road loads on vehicle components (e.g., shock absorbers), adjusting pressure dynamically to replicate varying terrain conditions.
Metalworking (hydraulic presses): In large stamping presses, MOOG G413-604A regulates ram force with ±1% accuracy, ensuring consistent part quality in high-volume production of automotive body panels.
Сравнение с конкурентами
Comparison of MOOG G413-604A with competing servo valves (Bosch Rexroth 4WRLE, Parker D41FBE, Atos DLKZOR):
Parameter
MOOG G413-604A
Bosch Rexroth 4WRLE
Parker D41FBE
Maximum pressure
35 MPa
31.5 MPa
28 MPa
Flow rate
120 L/min
100 L/min
90 L/min
Response time
≤20 ms
≤25 ms
≤30 ms
Digital protocols
PROFINET
PROFINET
CANopen
MOOG G413-604A stands out with its higher pressure rating, greater flow capacity, and faster response time, making it preferable for high-performance applications. Further comparisons are available at:
For systems requiring pressures up to 35 MPa and flow rates of 120 L/min — MOOG G413-604A is ideally suited, offering superior dynamic performance.
When integrating with PROFINET-based automation systems (e.g., Siemens TIA Portal) — the valve’s native protocol support simplifies setup and reduces latency.
In harsh environments with temperature extremes or vibration — the robust construction and IP65 rating ensure long-term reliability. Compatibility details are available at: