Product Introduction: 330101-02-78-05-02-00
The 330101-02-78-05-02-00 is a highly configurable Electro-Hydraulic Servo Valve, commonly used in precise motion control systems. This type of valve functions as a high-performance interface, converting a low-power electrical control signal into a high-power hydraulic output. It provides precise control over the flow and direction of hydraulic fluid to actuators, enabling accurate control of speed, position, and force in demanding industrial applications. The extended part number indicates specific options for coil voltage, spool configuration, feedback type, and seals.
Technical Parameters
The key technical specifications for this servo valve are summarized in the table below.
| Parameter | Specification |
|---|---|
| Part Number | 330101-02-78-05-02-00 |
| Type | Nozzle-Flapper / Jet Pipe Servo Valve |
| Dimensions (L x W x H) | Approx. 120 mm x 80 mm x 80 mm (varies with connector type) |
| Weight | 1.8 kg |
| Rated Flow | 20 L/min (at 1000 psi pressure drop) |
| Maximum Operating Pressure | 210 bar (3000 psi) |
| Input Signal | ±10 VDC or 4-20 mA (configurable) |
| Linearity | < ±1.0% of rated flow |
| Hysteresis | < ±0.5% of rated flow |
| Frequency Response (-3 dB at 1000 psi) | > 80 Hz |
| Coil Impedance | 200 Ω ±20 Ω (typical for dual coils) |
| Operating Temperature Range | -20°C to +80°C (Standard) |
| Fluid Compatibility | Mineral-based hydraulic oils to phosphate esters (specified by seal kit) |
Application Scenarios
This servo valve is designed for high-performance closed-loop control systems in various industries:
Industrial Automation & Press Control:
Used in injection molding machines, metal stamping presses, and roller positioning systems to control force, speed, and position with extreme precision.
Aerospace Test Rigs:
Employed in flight simulators and structural test rigs to apply and control precise aerodynamic or structural loads for component testing.
Steel & Aluminum Mills:
Controls the gap and pressure of rollers in rolling mills to ensure consistent sheet metal thickness and quality (AGC - Automatic Gauge Control).
Simulation and Motion Platforms:
Drives hydraulic actuators in flight simulators, ship bridge simulators, and amusement rides to create realistic and smooth motion.
Research and Development:
Used in custom-built test stands for materials testing, fatigue testing, and other applications requiring precise, dynamic control of force or position.
Global direct procurement guarantee
All products are purchased directly from overseas original manufacturers or authorized channels, 100% guaranteed genuine quality, sufficient spot inventory, and comprehensive model coverage
Quality Commitment
Each product has been tested by our technicians, providing 12-month long warranty, worry-free after-sales
Flexible procurement plan
- Bulk order enjoys Friendship discount (2 pieces or more can be applied)
- Long-term cooperative customers can apply for priority supply
Full service support
7×24 hours technical consultation, from selection guidance to installation and commissioning to provide full life cycle service (paid)
Why do so many customers choose us?
On the basis of the same quality, we provide:
- More competitive price system
- Faster logistics response
- More complete technical support (free product technical documentation)
Your trust is the driving force for our continuous progress, submit your requirements immediately to get exclusive quotes
