Direct-Acting Hydraulic Proportional Valve 4WRPEH10 A1 10V Control

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▶ Size 10

▶ Component series 3X

▶ Maximum operating pressure 350 bar

▶ Rated flow 50 … 100 l/min

▶ Digital interface, IO link for I4.0

▶ Reliable - proven and robust design

▶ Safe - fail-safe position of the control spool in switched-off condition

▶ Energy-efficient - no pilot oil demand

▶ High quality - control spool and sleeve in servo quality

▶ Flexible - suitable for position, velocity and pressure control

▶ Precise - high response sensitivity and little hysteresis

▶ IO-Link interface, optional

▶ IO-Link interface, optional. Use of the valve with IO-Link as a shut-off element up to category 3, PL d according to EN 13849-1.

• Key Performance Parameters: Rated flow ranges from 50 to 100 l/min (at Δp = 35 bar per control edge), supporting high-flow hydraulic systems. It boasts a maximum operating pressure of 350 bar for ports A, B, and P, and 250 bar for port T, making it suitable for heavy-duty industrial environments. The valve operates with a nominal supply voltage of 24 VDC (19–36 VDC range) and features a 10V differential command value input (±10 V) with an input resistance exceeding 100 kΩ, ensuring stable signal reception and precise control.
• Servo-Quality Construction: The control spool and sleeve are crafted to servo-quality standards, minimizing hysteresis (≤0.2) and temperature drift (zero shift <1% with Δϑ = 40 °C). This design guarantees exceptional precision, even in long-term continuous operation (S1 duty cycle per VDE 0580), with minimal manufacturing tolerances (qVmax <10) for consistent performance.
• Energy Efficiency & Safety: Unlike traditional valves, the 4WRPEH10 A1 requires no pilot oil, reducing energy consumption and system complexity. It features a fail-safe spool position when deactivated, ensuring operational safety in critical applications. The valve also holds an IP65 protection class (when using suitable mating connectors) and complies with CE (EMC directive 2014/30/EU) and RoHS (2011/65/EU) standards, meeting global industrial regulations.

At the heart of the 4WRPEH10 A1 is its advanced 10V control interface (Interface A1), designed for seamless integration into analog control systems. The differential amplifier-based command value input (0–10 V positive for P→A/B→T flow; 0–-10 V negative for P→B/A→T flow) enables precise proportional control of spool stroke and flow rate. The integrated electronics (OBE) continuously compares the command value to the position actual value (feedback via ±10 V test signal), adjusting the control solenoid with position transducer to eliminate deviations-delivering high response sensitivity and minimal lag for dynamic applications.

Zero-point calibration (±1 ex works) ensures accuracy out of the box, while the valve's linear flow characteristic (version "L") provides predictable, repeatable performance across the entire control range. Whether regulating cylinder position, motor speed, or system pressure, the 4WRPEH10 A1's 10V control delivers the precision needed for automated industrial processes.

• Hydraulic Fluid Compatibility: The valve works seamlessly with a wide range of hydraulic fluids, including mineral oils (HL, HLP, HLPD, HVLP, HVLPD per DIN 51524), biodegradable fluids (HETG, HEES, HEPG per ISO 15380), and flame-resistant fluids (HFDU, HFDR, HFC per ISO 12922). It supports NBR or FKM seals (selectable based on fluid type) and operates within a viscosity range of 10–800 mm²/s (20–100 mm²/s recommended) and fluid temperature range of -20 to +70 °C.
• Easy Integration: Designed for subplate mounting per ISO 4401-05-04-0-05, the 4WRPEH10 A1 fits standard hydraulic manifolds, simplifying system design and retrofitting. It weighs just 7.1 kg and can be installed in any orientation, adapting to diverse machine layouts. Connection cables up to 40 m (LiYCY 7 x 1.0 mm²) are supported, with EMC-compliant installation options (metal mating connectors, shielded cables) to ensure signal integrity in industrial environments.
• Durable & Reliable: Built to withstand harsh industrial conditions, the valve undergoes rigorous testing-including sine vibration (10–2000 Hz, 10 g), shock (35 g, 6 ms), and temperature extremes (-30 to +80 °C transport). Its MTTFd value of 150 years (per EN ISO 13849) underscores long-term reliability, while optional accessories like damping plates (for high-frequency excitation >300 Hz) and electronics protection membranes (for high humidity/outdoor use) enhance durability in specialized applications.

Hydraulic proportional valve CE certification certificate