BOKIN 4WRTE Series Proportional Directional Valves

Pilot-Operated | Integrated OBE | Pressure Compensated | ISO 4401 Mounting

 

4WRTE series are high-response pilot-operated two-stage proportional directional valves with electrical position feedback, integrated on-board electronics (OBE) and automatic pressure compensation. Designed for precise, high-speed flow direction and flow rate control in dynamic hydraulic systems, they fully match the mounting dimensions, electrical interfaces and hydraulic performance of equivalent Rexroth 4WRTE configurations, supporting straightforward drop-in installation.

 

Available in NG10, NG16, NG25, NG27, NG32 and NG35 nominal sizes, with ±10V voltage, 4–20mA current loop and enable signal control options, multiple spool profiles and flow characteristics. Optimized for blow molding machines, packaging equipment and high-cycle industrial hydraulic systems.

 

Core Specifications:

NG10 – NG35 Sizes | 350 Bar Max Pressure | Up to 1000 L/min Rated Flow | Hysteresis ≤ 0.1% | 12-Month Warranty

 

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Featured Product Models

 

 

Select the exact configuration for your system, and click to view full details for each model.

 

Model Control Type Nominal Size Max Flow Key Feature Quick Action
4WRTE10 A1 ±10V Voltage NG10 170 L/min <20ms ultra-fast response, compact size

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4WRTE10 F1 4–20mA Current NG10 170 L/min High noise immunity, long-distance transmission

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4WRTE16 A1 ±10V Voltage NG16 460 L/min Pressure compensated, high repeatability

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4WRTE16 F1 4–20mA Current NG16 460 L/min Strong anti-interference, heavy-duty use

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4WRTE25 A1 ±10V Voltage NG25 870 L/min Medium-large flow, blow molding optimized

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4WRTE25 F1 4–20mA Current NG25 870 L/min Stable flow output, high-cycle production

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4WRTE27 A1 ±10V Voltage NG27 1000 L/min Medium-large flow, blow molding optimized

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4WRTE27 F1 4–20mA Current NG27 1000 L/min Stable flow output, high-cycle production

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4WRTE32 A1 ±10V Voltage NG32 1600 L/min Large flow, heavy-duty high-cycle use

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4WRTE32 F1 4–20mA Current NG32 1600 L/min Anti-interference, industrial long-distance control

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4WRTE35 A1 ±10V Voltage NG35 3000 L/min Extra large flow, high-power hydraulic systems

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4WRTE35 F1 4–20mA Current NG35 3000 L/min Heavy-duty industrial grade, reliable performance

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Not sure which model fits? Send us your working pressure, flow rate and application, and our engineers will recommend the optimal configuration within 24 hours.

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Core Advantages of 4WRTE Series

 

 

1.Rexroth-Compatible Mounting & Interfaces

Manufactured strictly to ISO 4401 standard mounting dimensions, with identical port positions and K31 electrical pin assignments to equivalent Rexroth 4WRTE valves. Direct drop-in installation requires no manifold modification, rewiring or circuit redesign, greatly reducing retrofit downtime and project costs.

2. Ultra-Fast Response with Pressure Compensation

Equipped with high-sensitivity pilot stage drive and advanced OBE electronics, the valve delivers dynamic response as fast as 20 ms. The built-in automatic pressure compensation mechanism maintains consistent flow output under fluctuating load pressure, ensuring stable actuation speed and highly repeatable process parameters.

3. Flexible Configuration for Diverse High-Speed Scenarios

Multiple spool profiles (E, E1, W6, W8, V, V1), flow characteristics (linear / fine-control) and pilot supply modes are available to match different circuit requirements. Optional spool position monitoring and enable signal interface support closed-loop system integration and safety function upgrades.

4. Reliable Quality & Fast Delivery

Every valve undergoes 100% full performance testing before shipment, backed by a 12-month global quality warranty. Standard models are available for fast delivery within 2–4 weeks, supporting both sample testing and bulk production orders.

 

 

Rexroth 4WRTE Cross-Reference Guide

 

 

Corresponding Rexroth Model BOKIN Equivalent Model Key Specifications
4WRTE 10 E-25L-4X/6EG24K31/A1M 4WRTE 10 E-25L-4X/6EG24K31/A1M NG10, 25 L/min, ±10V, external pilot & drain, NBR seals, linear flow
4WRTE 10 E-25L-4X/6EG24EK31/A1M 4WRTE 10 E-25L-4X/6EG24EK31/A1M NG10, 25 L/min, ±10V, external pilot & drain, NBR seals, linear flow
4WRTE 10 E-25L-4X/6EG24TK31/A1M 4WRTE 10 E-25L-4X/6EG24TK31/A1M NG10, 25 L/min, ±10V, external pilot & drain, NBR seals, linear flow
4WRTE 10 E-25L-4X/6EG24ETK31/A1M 4WRTE 10 E-25L-4X/6EG24ETK31/A1M NG10, 25 L/min, ±10V, external pilot & drain, NBR seals, linear flow
4WRTE 10 E-50L-4X/6EG24K31/A1M 4WRTE 10 E-50L-4X/6EG24K31/A1M NG10, 50 L/min, ±10V, external pilot & drain, NBR seals, linear flow
4WRTE 10 E-50L-4X/6EG24EK31/A1M 4WRTE 10 E-50L-4X/6EG24EK31/A1M NG10, 50 L/min, ±10V, external pilot & drain, NBR seals, linear flow
4WRTE 10 E-50L-4X/6EG24TK31/A1M 4WRTE 10 E-50L-4X/6EG24TK31/A1M NG10, 50 L/min, ±10V, external pilot & drain, NBR seals, linear flow
4WRTE 10 E-50L-4X/6EG24ETK31/A1M 4WRTE 10 E-50L-4X/6EG24ETK31/A1M NG10, 50 L/min, ±10V, external pilot & drain, NBR seals, linear flow
4WRTE 10 E-100L-4X/6EG24K31/A1M 4WRTE 10 E-100L-4X/6EG24K31/A1M NG10, 100 L/min, ±10V, external pilot & drain, NBR seals, linear flow
4WRTE 10 E-100L-4X/6EG24EK31/A1M 4WRTE 10 E-100L-4X/6EG24EK31/A1M NG10, 100 L/min, ±10V, external pilot & drain, NBR seals, linear flow
4WRTE 10 E-100L-4X/6EG24EK31/A1M 4WRTE 10 E-100L-4X/6EG24EK31/A1M NG10, 100 L/min, ±10V, external pilot & drain, NBR seals, linear flow
4WRTE 10 E-100L-4X/6EG24TK31/A1M 4WRTE 10 E-100L-4X/6EG24TK31/A1M NG10, 100 L/min, ±10V, external pilot & drain, NBR seals, linear flow
4WRTE 10 E-100L-4X/6EG24ETK31/A1M 4WRTE 10 E-100L-4X/6EG24ETK31/A1M NG10, 100 L/min, ±10V, external pilot & drain, NBR seals, linear flow
4WRTE 16 E-150L-4X/6EG24K31/A1M 4WRTE 16 E-150L-4X/6EG24K31/A1M NG16, 150 L/min, ±10V, external pilot & drain, NBR seals, linear flow
4WRTE 16 E-150L-4X/6EG24EK31/A1M 4WRTE 16 E-150L-4X/6EG24EK31/A1M NG16, 150 L/min, ±10V, external pilot & drain, NBR seals, linear flow
4WRTE 16 E-150L-4X/6EG24TK31/A1M 4WRTE 16 E-150L-4X/6EG24TK31/A1M NG16, 150 L/min, ±10V, external pilot & drain, NBR seals, linear flow
4WRTE 16 E-150L-4X/6EG24ETK31/A1M 4WRTE 16 E-150L-4X/6EG24ETK31/A1M NG16, 150 L/min, ±10V, external pilot & drain, NBR seals, linear flow
4WRTE 16 E-220L-4X/6EG24K31/A1M 4WRTE 16 E-220L-4X/6EG24K31/A1M NG16, 220 L/min, ±10V, external pilot & drain, NBR seals, linear flow
4WRTE 16 E-220L-4X/6EG24EK31/A1M 4WRTE 16 E-220L-4X/6EG24EK31/A1M NG16, 220 L/min, ±10V, external pilot & drain, NBR seals, linear flow
4WRTE 16 E-220L-4X/6EG24TK31/A1M 4WRTE 16 E-220L-4X/6EG24TK31/A1M NG16, 220 L/min, ±10V, external pilot & drain, NBR seals, linear flow
4WRTE 16 E-220L-4X/6EG24ETK31/A1M 4WRTE 16 E-220L-4X/6EG24ETK31/A1M NG16, 220 L/min, ±10V, external pilot & drain, NBR seals, linear flow
4WRTE 25 E-220L-4X/6EG24K31/A1M 4WRTE 25 E-220L-4X/6EG24K31/A1M NG25, 220 L/min, ±10V, external pilot & drain, NBR seals, linear flow
4WRTE 25 E-220L-4X/6EG24EK31/A1M 4WRTE 25 E-220L-4X/6EG24EK31/A1M NG25, 220 L/min, ±10V, external pilot & drain, NBR seals, linear flow
4WRTE 25 E-220L-4X/6EG24TK31/A1M 4WRTE 25 E-220L-4X/6EG24TK31/A1M NG25, 220 L/min, ±10V, external pilot & drain, NBR seals, linear flow
4WRTE 25 E-220L-4X/6EG24ETK31/A1M 4WRTE 25 E-220L-4X/6EG24ETK31/A1M NG25, 220 L/min, ±10V, external pilot & drain, NBR seals, linear flow
4WRTE 25 E-350L-4X/6EG24K31/A1M 4WRTE 25 E-350L-4X/6EG24K31/A1M NG25, 350 L/min, ±10V, external pilot & drain, NBR seals, linear flow
4WRTE 25 E-350L-4X/6EG24EK31/A1M 4WRTE 25 E-350L-4X/6EG24EK31/A1M NG25, 350 L/min, ±10V, external pilot & drain, NBR seals, linear flow
4WRTE 25 E-350L-4X/6EG24TK31/A1M 4WRTE 25 E-350L-4X/6EG24TK31/A1M NG25, 350 L/min, ±10V, external pilot & drain, NBR seals, linear flow
4WRTE 25 E-350L-4X/6EG24ETK31/A1M 4WRTE 25 E-350L-4X/6EG24ETK31/A1M NG25, 350 L/min, ±10V, external pilot & drain, NBR seals, linear flow
4WRTE 27 E-500L-4X/6EG24K31/A1M 4WRTE 27 E-500L-4X/6EG24K31/A1M NG27, 500 L/min, ±10V, external pilot & drain, NBR seals, linear flow
4WRTE 27 E-500L-4X/6EG24EK31/A1M 4WRTE 27 E-500L-4X/6EG24EK31/A1M NG27, 500 L/min, ±10V, external pilot & drain, NBR seals, linear flow
4WRTE 27 E-500L-4X/6EG24TK31/A1M 4WRTE 27 E-500L-4X/6EG24TK31/A1M NG27, 500 L/min, ±10V, external pilot & drain, NBR seals, linear flow
4WRTE 27 E-500L-4X/6EG24ETK31/A1M 4WRTE 27 E-500L-4X/6EG24ETK31/A1M NG27, 500 L/min, ±10V, external pilot & drain, NBR seals, linear flow
4WRTE 32 E-400L-4X/6EG24K31/A1M 4WRTE 32 E-400L-4X/6EG24K31/A1M NG32, 400 L/min, ±10V, external pilot & drain, NBR seals, linear flow
4WRTE 32 E-400L-4X/6EG24EK31/A1M 4WRTE 32 E-400L-4X/6EG24EK31/A1M NG32, 400 L/min, ±10V, external pilot & drain, NBR seals, linear flow
4WRTE 32 E-400L-4X/6EG24TK31/A1M 4WRTE 32 E-400L-4X/6EG24TK31/A1M NG32, 400 L/min, ±10V, external pilot & drain, NBR seals, linear flow
4WRTE 32 E-400L-4X/6EG24ETK31/A1M 4WRTE 32 E-400L-4X/6EG24ETK31/A1M NG32, 400 L/min, ±10V, external pilot & drain, NBR seals, linear flow
4WRTE 32 E-600L-4X/6EG24K31/A1M 4WRTE 32 E-600L-4X/6EG24K31/A1M NG32, 600 L/min, ±10V, external pilot & drain, NBR seals, linear flow
4WRTE 32 E-600L-4X/6EG24EK31/A1M 4WRTE 32 E-600L-4X/6EG24EK31/A1M NG32, 600 L/min, ±10V, external pilot & drain, NBR seals, linear flow
4WRTE 32 E-600L-4X/6EG24TK31/A1M 4WRTE 32 E-600L-4X/6EG24TK31/A1M NG32, 600 L/min, ±10V, external pilot & drain, NBR seals, linear flow
4WRTE 32 E-600L-4X/6EG24ETK31/A1M 4WRTE 32 E-600L-4X/6EG24ETK31/A1M NG32, 600 L/min, ±10V, external pilot & drain, NBR seals, linear flow
4WRTE 35 E-1000L-4X/6EG24K31/A1M 4WRTE 35 E-1000L-4X/6EG24K31/A1M NG35, 1000 L/min, ±10V, external pilot & drain, NBR seals, linear flow
4WRTE 35 E-1000L-4X/6EG24EK31/A1M 4WRTE 35 E-1000L-4X/6EG24EK31/A1M NG35, 1000 L/min, ±10V, external pilot & drain, NBR seals, linear flow
4WRTE 35 E-1000L-4X/6EG24TK31/A1M 4WRTE 35 E-1000L-4X/6EG24TK31/A1M NG35, 1000 L/min, ±10V, external pilot & drain, NBR seals, linear flow
4WRTE 35 E-1000L-4X/6EG24ETK31/A1M 4WRTE 35 E-1000L-4X/6EG24ETK31/A1M NG35, 1000 L/min, ±10V, external pilot & drain, NBR seals, linear flow

 

Note: This cross-reference table is for configuration reference only. BOKIN valves are independently developed and manufactured products. Please confirm full model specifications with our team before installation to ensure compatibility.

 

 

 

Typical Applications of 4WRTE Valves

 

 

Plastic Injection Molding
Plastic Injection Molding
Blow Molding Machines
Blow Molding Machines
Packaging & Thermoforming Equipment
Packaging & Thermoforming Equipment
Hydraulic Test Rigs
Hydraulic Test Rigs
High-Speed Automated Production Lines
High-Speed Automated Production Lines
High-Cycle Industrial Hydraulic Systems
High-Cycle Industrial Hydraulic Systems

 

 

 

OEM & Customization Support

 

 

We provide flexible OEM and customization services for global distributors, system integrators and equipment manufacturers:

 

 

MOQ for custom branding is flexible. Contact our sales team for detailed OEM cooperation solutions.

 

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Quality & Certification

 

 

All BOKIN proportional valves are manufactured under strict process control and fully tested before shipment. Our products hold CE verification in compliance with relevant European directives and standards.

 

  • Certificate No.: ICR/VC/HM2601135
  • Standard: MD 2006/42/EC, EN ISO 12100:2010                         
  • Valid until: January 15, 2031
202608241904023344

 

 

 

FAQ

 

 

Q: Are BOKIN 4WRTE valves compatible with Rexroth 4WRTE series installations?

A: Yes. BOKIN 4WRTE valves are independently developed products designed to match ISO 4401 mounting dimensions, port sizes, K31 electrical interfaces and hydraulic performance of equivalent Rexroth configurations. They support direct drop-in installation in compatible systems. We recommend sharing your full model code for suitability confirmation.

Q: What is the core advantage of 4WRTE over standard 4WRZ valves?

A: 4WRTE features built-in OBE electronics, automatic pressure compensation and electrical position feedback, delivering much faster response (as low as 20 ms) and higher control accuracy. 4WRZ requires an external amplifier and is designed for general-purpose applications with lower dynamic demands.

Q: What is the difference between A1 (voltage) and F1 (current) control?

A: The A1 ±10V version offers higher control precision, ideal for high-precision equipment with short wiring runs. The F1 4–20mA current version has stronger anti-interference performance and supports longer transmission distances, suitable for large workshops and harsh industrial sites.

Q: What is the minimum order quantity and standard lead time?

A: MOQ is 1 piece for all standard models. Standard stock models are delivered within 2–4 weeks after order confirmation. Custom configurations take 4–6 weeks. All valves come with a 12-month global quality warranty.

Q: Is spool position monitoring available for 4WRTE series?

A: Yes, spool position monitoring is available as an optional function for sizes NG16 and above, supporting closed-loop system integration and safety-related applications. Please specify your requirement when inquiring.

 

 

 

Need a Quote or Technical Support?

 

 

Send us your required model, quantity and application details, and our hydraulic specialists will get back to you within 24 hours with a formal quotation and professional recommendations.

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Bokin Electro-Hydraulic Technology (Foshan) Co., Ltd. is one of the most experienced 4wrte manufacturers and suppliers in China, featured by quality products and good price. Please rest assured to buy bulk advanced 4wrte in stock here from our factory. Contact us for pricelist and customized service.

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