Product Overview
Electric Proportional Directional Valve is an electro-hydraulic control valve designed for precise regulation of flow direction, flow rate, and pressure in industrial hydraulic systems.
It converts electrical control signals into proportional spool movement, enabling smooth and stable hydraulic motion control.
The valve is designed for OEM machinery manufacturers and industrial automation systems requiring high repeatability, stable performance, and long service life.
In many industrial applications, it is used in systems requiring compatibility with European and international proportional hydraulic control architectures.
Key Features
- High-precision proportional flow and direction control
- Low hysteresis for stable motion performance
- Fast response for dynamic hydraulic systems
- Smooth switching reduces shock and vibration
- Compatible with PLC / DCS automation systems
- Supports 4–20mA / 0–10V / digital signals
- Designed for continuous industrial duty cycles
- OEM customization available (signal / pressure / interface)
- Wear-resistant spool for extended lifecycle
Working Principle
The valve operates by converting electrical control signals into proportional spool displacement via an electro-hydraulic actuator.
The driver processes the input signal (4–20mA or 0–10V) and controls actuator movement accordingly. The spool position regulates the hydraulic flow path, enabling precise control of direction and flow rate.
This proportional control architecture ensures stable performance under continuous and dynamic industrial operating conditions.
Technical Specifications
Nominal Size: DN6 – DN50
Max Pressure: Up to 315 bar
Flow Range: 5 – 300 L/min
Control Signal: 4–20mA / 0–10V / digital
Power Supply: 24V DC / 220V AC
Response Time: ≤ 50 ms
Medium: Hydraulic oil (ISO VG32 / VG46)
Temperature: -20°C to +80°C
Protection: IP65 / IP67 optional
Mounting: Subplate / manifold / inline
Engineering Applications (Field-Proven Use Cases)
This valve is widely used in industrial hydraulic systems requiring precise motion and pressure control, including:
- Hydraulic press systems used in continuous production environments
- Injection molding machines requiring dynamic flow regulation
- CNC and automation systems with multi-axis synchronization
- Metallurgical and steel processing equipment under heavy load conditions
- Marine hydraulic steering and control systems
- Construction machinery hydraulic circuits
- Industrial automation production lines
These applications typically require long service life, stable repeatability, and reliable operation under harsh industrial environments.
OEM & Engineering Capability
We provide OEM and customized hydraulic solutions for global industrial customers.
Capabilities include:
- Electrical interface customization (voltage / connector / signal type)
- Pressure and flow range adaptation
- Spool geometry optimization for application performance
- Mounting standard customization (ISO / SAE / manifold)
- Private label manufacturing
Our engineering team supports system integration to help customers reduce design risk and improve hydraulic efficiency.
Market Positioning & Compatibility
This proportional directional valve is designed for integration into industrial hydraulic systems requiring proportional flow control.
It can be used as a compatible functional solution in selected applications where performance equivalence to international hydraulic proportional control systems is required, depending on system configuration and engineering validation.
Manufacturing & Quality Assurance
Each valve is manufactured under strict quality control procedures and undergoes:
- 100% pressure testing before shipment
- Leakage and sealing inspection
- Spool accuracy calibration
- Load performance verification testing
Precision CNC machining and high-strength alloy materials ensure stable operation under demanding industrial conditions.
Commercial Information (Risk Reduction & Procurement Support)
- OEM/ODM available for global industrial customers
- Standard lead time: 7–15 days (depending on order volume)
- Technical response within 24 hours
- Suitable for OEM machinery manufacturers and system integrators
- Global shipping available
- Warranty provided for industrial applications
- Spare parts and technical support available upon request
FAQ
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