4WRPEH Direct-acting proportional servo valve
- High-response proportional servo valve
- High-precision control
- Multiple signal inputs
- Enable signal design
The 4WRPEH series is a direct-acting high-response proportional servo directional valve. It adopts a spool-sleeve structure, featuring ultra-fast response (≤10 ms) and high-precision control (hysteresis ≤0.1%). Integrated with an amplifier and electrical position feedback function, it supports multiple signal inputs and is suitable for high-precision hydraulic control systems.
Technical Specifications
- High frequency response and high precision, substitute for conventional servo valves;
- Servo-grade spool-sleeve construction;
- Direct-acting high-response valves with size 6 and size 10;
- Integrated electronic controller accepting voltage or current control command signals;
- Closed-loop spool position control;
- When power is cut off, the spool stays at the 4th position (fail-safe position);
- Subplate mounting, port mounting surface complies with ISO 4401;
- Control command is set via analog input; actual feedback signal is output via analog signal;
- Suitable for closed-loop hydraulic control of position, velocity, pressure and force.






