5WRPE10 Rexroth High-Response Directional Valve 70 L/min 350 Bar

Product Overview

The 5WRPE10 series high-response directional valve (model 5WRPE10F1B70L-2X/G24K0/B5M) is a high-performance direct-operated electro-hydraulic servo proportional control component manufactured to original Bosch Rexroth technical standards. Belonging to the 5WRPE series with size 10 (NG10), this valve features a direct-operated plate design conforming to ISO 4401-05 mounting standards (mounting surface per DIN 24340 Form A and ISO 4401). Equipped with electrical position feedback and integrated on-board electronics (OBE), the valve is actuated by proportional solenoids to provide continuous, precise high-response control of both direction and velocity of hydraulic actuators.

This product is dimensionally and functionally identical to the original Rexroth 5WRPE10 series valve, offering true drop-in interchangeability for direct replacement of same-specification OEM valves without modifying piping systems or control programs. Every unit undergoes 100% bench testing under simulated working conditions, including rated pressure holding, spool position accuracy, flow linearity, and dynamic response characterization, ensuring performance consistency with the original equipment.

Technical Specifications 

General Specifications

• Model: 5WRPE10F1B70L-2X/G24K0/B5M

• Related Model: 5WRPE10F1B70L-2X/G24K0/A1M (Material No. 0811402107)

• Product Series: 5WRPE (Size 10 / NG10)

• Component Series: 2X / 3X

• Spool Type: F1B (4-way, 3-position, closed center)

• Design: Direct-operated, plate mounting high-response directional valve with electrical position feedback and integrated on-board electronics (OBE)

• Mounting Pattern: ISO 4401-05 / DIN 24340 Form A / CETOP-RP 121 H

• Installation Position: Any

Hydraulic Parameters

• Nominal Flow Rate: 70 L/min (at Δp = 11 bar per control edge, range 50-80 L/min)

• Maximum Operating Pressure (Ports P/A/B): 350 bar (5075 psi)

• Maximum Tank Port Pressure (Port T): 250 bar (3625 psi)

• Hydraulic Fluid: Mineral-based hydraulic oil (HL, HLP, HLPD, HVLP, HVLPD) and biodegradable fluids

• Viscosity Range: 20 – 380 mm²/s (cSt)

• Fluid Temperature Range: -20°C to +80°C

• Filtration: ISO 4406 19/17/14 (NAS 1638 Class 10)

• Characteristic Curve: Linear

Electrical Parameters

• Supply Voltage: 24 VDC (19 – 36 VDC range)

• Rated Current: approx. 2.5 A

• Command Signal: ±10 V voltage input (interface A1) / B5M interface available

• Solenoid Type: Proportional solenoid, single-sided actuation

• Integrated Electronics: OBE (On-Board Electronics)

• Electrical Position Feedback: Integrated inductive position transducer

• Electrical Connector: K0 (standard connector)

• Protection Class: IP65 (with standard connector)

Materials & Construction

• Valve Body: High-strength cast iron

• Control Spool: Carburized steel, precision ground, hard chrome plated

• Seals: NBR (standard) / FKM (optional)

• Surface Treatment: Phosphating / anti-corrosion coating

Weight

• Weight: approx. 4.0 kg

Key Technical Advantages

1. High-Response Dynamic Characteristics with Integrated OBE Electronics
The 5WRPE10F1B70L-2X/G24K0/B5M features a direct-operated high-response design where the spool is directly actuated by proportional solenoids, equipped with an electrical position feedback closed-loop control system. The integrated on-board electronics (OBE) embed the proportional amplifier board directly into the valve body, eliminating the need for an external amplifier. Users can directly drive the spool via a ±10 V signal, significantly simplifying system architecture. The high-response design substantially reduces spool dynamic response time, meeting the demands of high-precision closed-loop speed and pressure control applications.

2. Precision Spool Machining for High-Accuracy Flow Control
The clearance between spool and bore is controlled at micron level. Metering notches are precision-machined on the spool lands, allowing oil flow to begin before the lands fully clear the valve ports, delivering progressive linear flow characteristics. Combined with the integrated inductive position transducer for spool position sensing, spool position accuracy is maintained at high precision, enabling accurate actuator speed and direction control for high-accuracy synchronization applications.

3. Designed for Closed-Loop Speed and Pressure Control
The 5WRPE10 series is specifically engineered for closed-loop speed and pressure control applications. Closed-loop pQ control can be achieved with an external pressure compensator (available as accessory). Actuated by control solenoids and utilizing electrical position feedback for precise closed-loop spool position control, the valve is suitable for industrial hydraulic systems requiring high control accuracy and dynamic response. The linear characteristic curve ensures flow rate maintains a linear relationship with the input signal, facilitating system calibration and precise control.

4. 100% Simulated Working Condition Testing and Drop-in Interchangeability
Every 5WRPE10F1B70L-2X/G24K0/B5M valve undergoes 100% bench testing prior to shipment, covering 350 bar rated pressure holding, spool position accuracy calibration, flow-signal linearity verification, internal leakage measurement, and solenoid dynamic response characterization. Mounting dimensions, port positions, electrical interfaces, and performance curves are strictly matched to the original Rexroth valve, enabling direct drop-in replacement without modifying piping or control programs.

Application Areas

• CNC Press Brakes: Ram synchronization control, pressure-position compound closed-loop control

• Injection Molding Machines: High-response proportional control of injection speed and holding pressure

• Die Casting Machines: Shot speed and intensification pressure precise regulation

• Hydraulic Presses: High-accuracy proportional speed and direction regulation

• Material Testing Machines: Force-displacement closed-loop control for loading systems

• Metallurgical Equipment: Continuous casting machines, rolling mill auxiliary hydraulic control

• Hydro Power: Turbine governor systems, gate hoist hydraulic control

• Precision Machine Tools: Hydraulic clamping systems, grinding machine feed control

Expert Maintenance Tips

Installation Guidelines

1. The 5WRPE10 series can be mounted in any position. Horizontal installation (coil facing upward or horizontal) is recommended to facilitate solenoid heat dissipation and proper oil immersion of the spool. Mounting surface flatness must be ≤ 0.05 mm. Use grade 12.9 M5 bolts and tighten diagonally in stages to the recommended torque value.

2. Thoroughly flush all piping circuits before installation. Ensure no welding slag, metal chips, or particulate contaminants remain. Prior to first operation, circulate the system through a 10 μm filter element for a minimum of 30 minutes.

3. Electrical connections must use standard connectors to maintain IP65 protection. Control signal cables should be shielded, with the shield grounded at one end to prevent electromagnetic interference causing spool oscillation.

Routine Maintenance Procedures

1. Fluid Cleanliness Management: Maintain system fluid cleanliness at ISO 4406 19/17/14 or better. Check fluid particulate contamination every 500 operating hours and replace filter elements and hydraulic fluid when contamination exceeds limits.

2. Electrical Zero Point Verification: Periodically check the electrical zero point for drift with the power supply disconnected. If zero point deviation exceeds ± 2%, re-calibrate using dedicated tools.

3. Coil Resistance Verification: Measure solenoid coil resistance every 1,000 operating hours. Deviation from factory value should not exceed ± 10%.

4. Internal Leakage Monitoring: An annual internal leakage test is recommended. If leakage exceeds 150% of the factory standard, seal replacement should be scheduled.

5. Tank Line Back Pressure Management: The tank line must not be allowed to run empty. Under corresponding installation conditions, a preload valve (preload pressure approx. 2 bar) must be installed to maintain return line back pressure. The maximum tank port pressure must not exceed 250 bar.