THM – 4WRPEH6 Servo Solenoid – Proportional Valve
Achieve absolute, servo-level fluid control in space-constrained manifolds with the THM 4WRPEH6 Series Servo Solenoid Proportional Valve. Engineered exclusively by Thm Hydraulics for the most demanding electro-hydraulic applications, this compact, direct-operated directional control valve combines high-performance servo-quality internals with state-of-the-art On-Board Electronics (OBE). Delivering exceptional power density with nominal flow rates available at 40 L/min or a massive 100 L/min, it effortlessly sustains maximum working pressures up to 315 bar. Factory-calibrated and featuring a critical 4/4 fail-safe position, the 4WRPEH6 is the ultimate precision upgrade for advanced production and testing systems, as well as the heavy-duty civil and road construction machinery where physical space is at an absolute premium.
Core Technical Specifications:-
- Valve Architecture: Direct Operated Servo Solenoid Directional Control Valve
- Model Series: THM 4WRPEH6
- Standard Size: Size 6 (NG6)
- Maximum Working Pressure: Up to 315 bar
- Nominal Flow Rates: 40 L/min or 100 L/min
- Control Technology: Electric Position Feedback with Integrated Electronics (OBE)
- Electrical Connection: Standard 6P+PE
Key Features & Engineering Advantages
- Compact Power Density: Despite its small NG6 footprint, the hydro-dynamically optimized internal galleries can push up to an astonishing 100 liters of fluid per minute, giving engineers massive servo-level power in an incredibly tight space.
- Servo-Quality Precision: The internal control spool and sleeve are machined to strict servo-quality tolerances. This guarantees ultra-fast response times, minimal internal leakage, and the highly sensitive fluid metering required for exact motion control.
- Factory-Calibrated OBE: Features a built-in amplifier unit (On-Board Electronics) that is fully calibrated at the factory. This entirely eliminates the need for bulky external control cards, drastically simplifying machine wiring and guaranteeing true plug-and-play installation.
- 4/4 Fail-Safe Security: Operated on one side, the valve features a critical 4/4 fail-safe position. In the event of an electrical power loss or system shutdown, the valve automatically defaults to a secure, switched-off state to instantly lock actuators and protect the job site.
- Versatile Signal Inputs: Equipped with a differential amplifier signal input, allowing seamless interfacing via standard "A1" (±10V) or "F1" (4...20mA, Rsh = 200Ω) control signals, ensuring flawless communication with your existing PLCs and testing computers.
Ideal Industry Applications
The compact size, servo-level accuracy, and fail-safe security of the 4WRPEH6 Series make it a mandatory automated component for:
- Production & Testing Systems: Providing the exact, highly repeatable fluid routing required for compact hydraulic test benches, automated quality control rigs, and complex, space-constrained manufacturing lines.
- Heavy Civil & Road Machinery: Delivering the dynamic, precise motion control needed for automated leveling screeds, sensor-driven steering systems, and precision auxiliary attachments on large-scale asphalt pavers and road milling machines.
- Automated Industrial Manufacturing: Managing the exact, multi-stage clamping forces and rapid, highly metered pressing speeds of advanced metal-forming presses and plastic injection molding equipment.
- Precision Earthmoving: Regulating the complex, variable-speed pilot circuits on modern, drive-by-wire tracked excavators and high-capacity trenching equipment without expanding the manifold block.
Why Choose the THM 4WRPEH6 Series?
- Uncompromising Accuracy: Servo-quality internals ensure your machinery executes its programmed movements with zero deviation.
- Space-Saving Integration: The compact NG6 footprint combined with the integrated OBE drastically reduces the physical size of your power unit and electrical cabinets.
- Guaranteed System Safety: The mechanical 4/4 fail-safe position safeguards your entire hydraulic infrastructure against unpredictable electrical faults.
