Description
Technical Specifications
| Parameter | Value |
|---|---|
| Product Model | G403-552A |
| Manufacturer | MOOG |
| Product Type | Servo Valve |
| Flow Capacity | 40 L/min @ 70 bar |
| Max Operating Pressure | 315 bar |
| Response Time | 10 ms |
| Hysteresis | <3% |
| Input Signal | ±10V DC / 4-20mA |
| Null Leakage | <1% of rated flow |
| Operating Temperature | -40°C to +120°C |
| Port Size | SAE-10 |
| Coil Resistance | 40 Ω ±10% |
Main Features and Advantages
The MOOG G403-552A servo valve delivers exceptional precision control for demanding hydraulic applications. With its industry-leading 10ms response time and <3% hysteresis, this valve provides unmatched positioning accuracy and repeatability in high-performance systems. The dual-input capability (±10V DC and 4-20mA) ensures compatibility with various control architectures.
High-flow performance: Rated at 40 L/min @ 70 bar, the G403-552A maintains precise control even under high-flow conditions. The optimized hydraulic amplifier design minimizes pressure losses while delivering consistent flow characteristics across its full operating range.

G403-552A
Robust industrial construction: Built to withstand extreme environments, the valve operates reliably across -40°C to +120°C temperature ranges. The hardened spool and sleeve assembly ensures extended service life even with contaminated fluids, while the low null leakage (<1% of rated flow) enhances system efficiency.
Advanced diagnostics: Integrated fault detection capabilities monitor coil integrity and spool position, providing early warning of potential issues. The symmetrical design allows for easy mounting in any orientation, simplifying installation in space-constrained applications.
Our motion control specialists provide application engineering support – contact us via WhatsApp for valve sizing and system integration guidance.
Application Areas
The G403-552A excels in precision motion control applications including flight simulators, industrial robotics, injection molding machines, and test equipment. Its rapid response and high accuracy make it ideal for aerospace actuation systems, steel mill controls, and any application requiring closed-loop hydraulic positioning with micron-level precision.
Related Products
- G403-551A: Lower flow version for precision applications
- G631-3006: High-flow servo valve for heavy machinery
- D661: Compact servo valve with integrated electronics
Please contact Sunny sales@xiongbagk.cn for the best price.
➱ sales manager: Sunny
➱ email mailto: sales@xiongbagk.cn
➱ Skype/WeChat: 18059884797
➱ phone/Whatsapp: + 86 18059884797
➱ QQ: 3095989363
➱ Website:www.sauldcs.com
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