Bokin Electro-Hydraulic Technology (Foshan) Co., Ltd. is one of the leading manufacturers and suppliers of 4WRKE10 A1 Pilot‑Operated Proportional Directional Valve
±10V Voltage Control | NG10 Size | Integrated OBE Position Feedback in China. If you're going to wholesale bulk durable 4WRKE10 A1 Pilot‑Operated Proportional Directional Valve
±10V Voltage Control | NG10 Size | Integrated OBE Position Feedback made in China, welcome to get pricelist from our factory. All customized products are with high quality and competitive price.
Key Specifications At a Glance
| Parameter | Value |
|---|---|
| Nominal Size | NG10 (Component Series 3X) |
| Mounting Standard | ISO 4401‑05‑05‑0‑05 |
| Max Operating Pressure (A/B/P ports) | 350 bar |
| Max Operating Pressure (T port, external pilot return) | 315 bar |
| Max Flow | 170 L/min |
| Rated Flow (Δp = 5 bar per control edge) | 25 – 100 L/min |
| Control Signal | A1 interface, ±10 VDC voltage input |
| Input Resistance | ＞100 kΩ |
| Dynamic Response Time | ＜30 ms |
| Hysteresis | ≤ 1% |
| Response Sensitivity | ≤ 0.5% |
| Pilot Oil Supply Modes | External pilot & external return (standard) / internal pilot & external return (E) / internal pilot & internal return (ET) / external pilot & internal return (T) |
| Supply Voltage | 24 VDC (18 – 36 VDC range) |
| Protection Class | IP65 (correctly mounted connector) |
| Ambient Temperature | -20°C to +50°C |
| Weight | 9 kg |
| CE Compliance | MD 2006/42/EC, EN ISO 12100:2010, EMC Directive 2014/30/EU |
Available Configurations
Select the flow rating and spool type for your system:
|
Model Number |
Rated Flow |
Spool Type |
Quick Action |
| 4WRKE 10 E100L-3X/6EG24ETK31/A1M |
100 L/min |
Standard (external pilot & external return) | |
| 4WRKE 10 E100L-3X/6EG24EK31/A1M | 100 L/min | Internal pilot supply (E) | |
| 4WRKE 10 E100L-3X/6EG24TK31/A1M | 100 L/min | Internal pilot return (T) | |
| 4WRKE 10 E100L-3X/6EG24K31/A1M | 100 L/min | Internal pilot & return (ET) | |
| 4WRKE 10 E1-100L-3X/6EG24ETK31/A1M | 100 L/min | Underlap spool, standard pilot | |
| 4WRKE 10 E1-100L-3X/6EG24EK31/A1M | 100 L/min | Underlap spool, internal pilot (E) | |
| 4WRKE 10 E1-100L-3X/6EG24TK31/A1M | 100 L/min | Underlap spool, internal return (T) | |
| 4WRKE 10 E1-100L-3X/6EG24K31/A1M | 100 L/min | Underlap spool, internal pilot & return (ET) |
Need a custom spool profile or special configuration? Send us your requirements → Get Custom Solution
Product Key Advantages
1. Pilot‑Operated Stable Flow & Position Control
Two‑stage pilot amplification with main‑stage electrical position feedback delivers precise flow regulation independent of flow‑force disturbances, even under varying load pressure. Spring‑centered main spool automatically returns to neutral position upon de‑energization for safe system reset.
2. Hassle‑Free Direct Interchangeability
Manufactured strictly to ISO 4401‑05‑05‑0‑05 NG10 mounting dimensions, with identical port layout and ±10V A1 electrical pin‑out matching Rexroth 4WRKE10 A1. Direct drop‑in installation without manifold re‑machining or rewiring, minimizing retrofit downtime.
3. Precise ±10V Closed‑Loop Regulation
A1 differential voltage interface with ＞100 kΩ input resistance delivers stable command‑signal reception. Integrated OBE continuously compares command value and actual position value, adjusting the pilot solenoid to maintain accurate spool positioning. Hysteresis ≤1% and response sensitivity ≤0.5% ensure consistent closed‑loop performance.
4. Robust Industrial‑Grade Reliability
Robust construction with IP65 ingress protection and wide operating temperature range withstands harsh industrial environments. 75‑year MTTFd rating per EN ISO 13849 ensures long‑term reliability for continuous‑operation production equipment. Multiple pilot oil supply modes adapt to different circuit designs.
Compatibility Reference
|
Corresponding Rexroth Model |
BOKIN Equivalent Model |
Core Match Points |
| 4WRKE 10 E100L-3X/6EG24ETK31/A1M | 4WRKE 10 E100L-3X/6EG24ETK31/A1M | Same ISO 4401 NG10 mounting, ±10V A1 interface, position feedback, hydraulic performance |
| 4WRKE 10 E100L-3X/6EG24EK31/A1M | 4WRKE 10 E100L-3X/6EG24EK31/A1M | |
| 4WRKE 10 E100L-3X/6EG24TK31/A1M | 4WRKE 10 E100L-3X/6EG24TK31/A1M | |
| 4WRKE 10 E100L-3X/6EG24K31/A1M | 4WRKE 10 E100L-3X/6EG24K31/A1M | |
| 4WRKE 10 E1-100L-3X/6EG24ETK31/A1M | 4WRKE 10 E1-100L-3X/6EG24ETK31/A1M | |
| 4WRKE 10 E1-100L-3X/6EG24EK31/A1M | 4WRKE 10 E1-100L-3X/6EG24EK31/A1M | |
| 4WRKE 10 E1-100L-3X/6EG24TK31/A1M | 4WRKE 10 E1-100L-3X/6EG24TK31/A1M | |
| 4WRKE 10 E1-100L-3X/6EG24K31/A1M | 4WRKE 10 E1-100L-3X/6EG24K31/A1M | |
|
More models are available; please contact us for additional model options. |
||
Note: For system configuration reference only. BOKIN is an independent brand. Please verify specifications before installation.
Typical Applications
- Small hydraulic presses & precision forming equipment
- Precision automation actuators & micro‑positioning cylinders
- Laboratory hydraulic test rigs & testing systems
- Compact material handling machinery & servo‑driven systems
- Small‑to‑medium injection molding auxiliary circuits
Need current‑loop anti‑interference control?
Need larger flow capacity?
Installation & Commissioning Guidelines
Installation Notes
- Thoroughly clean all oil ports and connecting surfaces before installation to prevent contaminants from entering the valve body.
- Confirm the control signal type (±10V voltage) and power‑supply voltage match the valve nameplate specifications before wiring.
- Tighten mounting bolts evenly to the recommended torque (13.5–15.5 Nm for M6 screws) to avoid valve‑body deformation and internal leakage, complying with ISO 4401‑05‑05‑0‑05 NG10 mounting specifications.
- Ensure the tank line does not run empty. Install a preload valve (approx. 2 bar preload pressure) if required by installation conditions.
- Gradually ramp‑up system pressure during commissioning. Inspect for leakage and abnormal noise before switching to full‑load operation.
Safety Precautions
- Retain manual hydraulic override for backup safety during system retrofits.
- Fit pressure‑relief valves in the hydraulic circuit for overpressure protection.
- Implement emergency‑stop logic to de‑energize the proportional valve under fault conditions.
- Ensure hoses and hydraulic connections are rated for the system's maximum working pressure. ‑ Zero‑point adjustment shall only be performed by trained personnel.
FAQ
Q: What is the main difference between 4WRKE10 A1 and 4WREE10 A1?
A: 4WRKE10 A1 is a pilot‑operated two‑stage valve with main‑stage position feedback for stable large‑flow control. 4WREE10 A1 is a direct‑acting valve for smaller‑flow higher‑precision scenarios. 4WRKE handles higher flow forces with better load‑pressure immunity.
Q: What pilot oil supply modes are available for 4WRKE10?
A: Four standard modes: external pilot & external return (standard), internal pilot & external return (E), internal pilot & internal return (ET), external pilot & internal return (T). Select based on your system circuit design.
Q: Can this valve directly replace Rexroth 4WRKE10 series?
A: Yes. It follows the same ISO 4401 NG10 mounting standard, identical port geometry, ±10V A1 electrical interface and hydraulic performance. It supports drop‑in installation on compatible manifolds. Please send your full part number for final compatibility confirmation.
Q: What about warranty and lead‑time?
A: All standard valves carry a 12‑month quality warranty from delivery date plus lifelong technical consultation. Standard 4WRKE10 A1 configurations ship within 2‑4 weeks after order confirmation.
Ready to Get a Quote?
Send us your required model, quantity and application details, and our team will reply within 24 hours with a formal quotation.
Hot Tags: 4WRKE10 A1 Pilot‑Operated Proportional Directional Valve
±10V Voltage Control | NG10 Size | Integrated OBE Position Feedback, China 4WRKE10 A1 Pilot‑Operated Proportional Directional Valve
±10V Voltage Control | NG10 Size | Integrated OBE Position Feedback manufacturers, 4WRKE25 Hydraulic Proportional Valve, Pilot Operated Hydraulic Proportional Valve 4WRKE27 F1 4 20mA Control, 4WRKE16 Pilot Operated Hydraulic Valve, 4WRKE32 Hydraulic Proportional Valve, Pilot Operated Hydraulic Proportional Valve 4WRKE25 A1 10V Control, 4WRKE35 Pilot Operated Hydraulic Valve
