Guangdong Yanhui Hydraulic Co., Ltd. is one of the leading manufacturers and suppliers of 4WRPEH 10 in China. We warmly welcome you to wholesale bulk 4WRPEH 10 for sale here from our factory. If you have any enquiry about pricelist and quotation, please feel free to email us.
Product Overview
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The 4WRPEH 10 is a direct-operated proportional directional valve of size 10, equipped with electrical position feedback and integrated electronics (OBE). Designed for high-frequency dynamic responses, it offers precise control of oil flow direction and rate in closed-loop hydraulic circuits. It operates as a core control element in high-end hydraulic control systems, bridging the gap between standard proportional valves and high-cost servo valves by delivering exceptional response speed, minimal hysteresis, and superior repeatability.
Key Advantages
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- High-Dynamic Performance: Optimized spool and linear solenoid design achieve extremely short step-response times and exceptional dynamic bandwidth.
- Integrated Control Electronics (OBE): Factory-calibrated, onboard electronics simplify wiring, eliminate external amplifier tuning, and ensure zero-drift operating stability.
- Closed-Loop Position Control: The LVDT (Linear Variable Differential Transformer) directly monitors spool position, ensuring zero-point precision and high linearity under varying pressure and thermal conditions.
- Fail-Safe Function: Features defined zero-position/fail-safe switching behavior upon power loss or signal interruption to safeguard operational equipment.
- Subplate Mounting Standard: Conforms to ISO 4401-05-04-0-05 mounting interface standards for seamless integration and field replacement.
Technical Specifications
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| Technical Parameter | Specification Value / Range | Unit / Condition |
| Nominal Size (NG) | Size 10 (ISO 4401-05-04-0-05) | - |
| Max. Operating Pressure (Ports A, B, P) | 315 / 350 | bar |
| Max. Return Pressure (Port T) | 210 | bar |
| Nominal Flow (at Δp = 35 bar per land) | 25 / 40 / 50 / 80 / 100 | L/min |
| Hysteresis | < 0.1 | % |
| Response Time (0 to 100% stroke) | 8 to 15 | ms |
| Fluid Temperature Range | -20 to +80 | °C |
| Ambient Temperature Range | -20 to +60 | °C |
| Viscosity Range | 15 to 380 | mm²/s (cSt) |
| Required Fluid Cleanliness | ISO 4406 Class 16/14/11 (NAS 1638 Class 5) | Min. recommended |
| Supply Voltage | 24 (18 to 35) | V DC |
| Control Signal Options | ±10 V / 4 to 20 mA | Configurable |
| Protection Degree | IP65 | With standard plug |
Applications
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- Plastic Injection Molding Machines: Used for precise closed-loop speed control during mold opening/closing and dynamic position control of hydraulic ejector pins.
- Metal Stamping & Forging Presses: Executing high-speed position-controlled synchronization of main pressing cylinders and hydraulic cushioning units.
- Die Casting Machinery: Direct controlling high-acceleration shot cylinder motion during fast-approach and pre-fill stages.
- Hydraulic Test Benches: Regulating real-time pressure-flow ramps and high-frequency dynamic load simulators in aerospace and automotive component testing.
- Bending & Shearing Equipment: Providing synchronized movement and precise leveling control on multi-axis CNC hydraulic press brakes.
Related Models
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| Model Code | Porting Size | Nominal Flow Rate | Signal Input Type | Seal Material |
| 4WRPEH 10 C3 B25L-2X/G24K0/A1M | NG 10 | 25 L/min | ±10 V Voltage Signal | FKM (Viton) |
| 4WRPEH 10 C3 B50L-2X/G24K0/A1M | NG 10 | 50 L/min | ±10 V Voltage Signal | FKM (Viton) |
| 4WRPEH 10 C3 B80L-2X/G24K0/A1M | NG 10 | 80 L/min | ±10 V Voltage Signal | FKM (Viton) |
| 4WRPEH 10 C3 B100L-2X/G24K0/A1M | NG 10 | 100 L/min | ±10 V Voltage Signal | FKM (Viton) |
| 4WRPEH 10 C3 B50L-2X/G24K0/F1M | NG 10 | 50 L/min | 4 to 20 mA Current Signal | FKM (Viton) |
| 4WRPEH 10 C3 B100L-2X/G24K0/F1M | NG 10 | 100 L/min | 4 to 20 mA Current Signal | FKM (Viton) |
FAQ
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1. How do I confirm the exact replacement part number for my existing valve?
Compare the full model code printed on the valve body nameplate. Pay close attention to the flow rating designation (e.g., B25, B50, B100), series code (2X series), command signal option (A1M for voltage, F1M for current), and plug pin layout. If the label is worn off, provide your system's required flow, working pressure, and control signal type to our engineers.
2. What level of oil filtration is required for the 4WRPEH 10 valve?
Because the 4WRPEH 10 utilizes tight spool-to-sleeve clearances to achieve high dynamic response, strict oil cleanliness is required. The system must maintain a minimum oil cleanliness rating of ISO 4406 Class 16/14/11. We strongly recommend installing a pressure line filter with a filtration rating of 3 µm to 10 µm absolute upstream of the valve.
3. Which hydraulic oil types are compatible with this valve?
The valve comes standard with Viton (FKM) seals, making it fully compatible with conventional mineral oil-based hydraulic fluids (HL, HLP), eco-friendly synthetic esters (HEES), and flame-resistant fluids (HFD-U). Ensure fluid operating viscosity stays between 15 and 380 mm²/s.
Contact Us
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Request a Quote Today to ensure your hydraulic system performs at its best with genuine components from Yanhui Hydraulic.
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