Pilot-Operated Hydraulic Proportional Valve 4WRKE25 F1 4-20mA Control

Pilot-Operated Hydraulic Proportional Valve 4WRKE25 F1 4-20mA Control
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Discover the 4WRKE25 Size 25 (Component Series 3X), a pilot-operated hydraulic proportional valve. Features "F1" 4–20mA control and integrated electronics (OBE) for precise flow control up to 350 bar.
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Product Details

Bokin Electro-Hydraulic Technology (Foshan) Co., Ltd. is one of the leading manufacturers and suppliers of pilot-operated hydraulic proportional valve 4wrke25 f1 4-20ma control in China. If you're going to wholesale bulk durable pilot-operated hydraulic proportional valve 4wrke25 f1 4-20ma control made in China, welcome to get pricelist from our factory. All customized products are with high quality and competitive price.

 

Product Parameters

 

 

▶ Size 25

▶ Component series 3X

▶ Maximum operating pressure 350 bar

▶ Maximum flow 870 L/min

 

Features

 

 

▶ Operation by means of proportional solenoids

▶ Control of flow direction and size

▶ For subplate mounting

▶ Porting pattern according to ISO 4401-07-07-0-05(Ports A, B, T and P with Ø20 mm)

▶ Electrical position feedback

▶ Spring-centered main control spool

▶ Pilot control by means of proportional directional valve

▶ Main stage with position control

▶ CE conformity according to EMC Directive 2014/30/EU

 

Pilot-Operated Hydraulic Proportional Valve 4WRKE25 F1 4-20mA Control Complete Model

 

4WRKE 25 E350L-3X/6EG24ETK31/F1M

4WRKE 25 E350L-3X/6EG24EK31/F1M

4WRKE 25 E350L-3X/6EG24TK31/F1M

4WRKE 25 E350L-3X/6EG24K31/F1M

4WRKE 25 E1-350L-3X/6EG24ETK31/F1M

4WRKE 25 E1-350L-3X/6EG24EK31/F1M

4WRKE 25 E1-350L-3X/6EG24TK31/F1M

4WRKE 25 E1-350L-3X/6EG24K31/F1M

4WRKE 25 W6-350L-3X/6EG24ETK31/F1M

4WRKE 25 W6-350L-3X/6EG24EK31/F1M

4WRKE 25 W6-350L-3X/6EG24TK31/F1M

4WRKE 25 W6-350L-3X/6EG24K31/F1M

4WRKE 25 W8-350L-3X/6EG24ETK31/F1M

4WRKE 25 W8-350L-3X/6EG24EK31/F1M

4WRKE 25 W8-350L-3X/6EG24TK31/F1M

4WRKE 25 W8-350L-3X/6EG24K31/F1M

 

Technical Specifications

 

 

Available Size

4WRKE10

4WRKE16

4WRKE25

4WRKE27

4WRKE32

4WRKE35

Dynamic Response Time

<30ms

<40ms

<60ms

<60ms

<90ms

<140ms

Max Operating Pressure

350 bar

Max Flow

170L/min

460L/min

870L/min

1000L/min

1600L/min

4700L/min

Supply Voltage

DC24V

Interfaces of the Control Electronics

±10V/4~20mA

 

Product Advantages

 

Core Positioning

Automated heavy-duty pilot-operated proportional valve with 4-20mA current control, engineered for high-flow hydraulic systems in industrial automation. Features OBE and position feedback for reliable performance in demanding automated applications.

Key Flow & Pressure Performance

Rated flow 220–350 l/min (Δp=5 bar/control edge), maximum flow 870 l/min. Main valve ports A/B/P rated 350 bar, pilot supply 25–350 bar. Port T external return pressure 250 bar, suitable for automated heavy-duty hydraulic circuits.

4-20mA Control Advantages

F1 interface with 4–20mA command input (200 Ω input resistance) and 4–20mA actual value output. Current-based signaling ensures stable transmission over long distances (up to 40 m) with minimal interference. OBE includes cable break detection and making current limiter.

Structural & Installation Flexibility

Weighs 18 kg, ISO 4401-08-08-0-05 porting pattern. Requires 6 M12 x 60 fixing screws (100 Nm ±10% tightening torque). Compatible with LiYCY 7×1.0 mm² cable, shield connected to PE on supply side for EMC compliance.

Safety & Environmental Adaptability

Spring-centered main spool and OBE undervoltage protection (18–36 VDC supply). IP65 protection and -20~+50°C ambient temperature range. Optional electronics protection membrane (-967) resists condensation in high-humidity industrial environments.

Fluid & Contamination Resistance

Compatible with NBR/FKM seals (fluid-dependent), supporting mineral, biodegradable, and flame-resistant hydraulic fluids. ISO 4406 cleanliness class 17/15/12 (pilot) and 20/18/15 (main valve) to prevent wear in heavy-duty operation.

Industry Application Fit

Ideal for automated heavy hydraulic presses, industrial conveyor systems, and die-casting machines. Seamlessly integrates with PLCs in automotive manufacturing, steel processing, and material handling facilities requiring high-flow current-controlled hydraulic performance.

 

Our Advantage

 
 
 

CORE TECHNOLOGY

20+ years R&D experience, industry expert-led, independent IP rights

 
 
 

CORE IP PRODUCT

4WREE, 4WRKE, 4WRJE, 4WRLE, 4WRPEH, etc

 
 
 

OUTPUT

Proportional valve monthly output >10000+ pieces

 
 
 

BRAND

100% independent proportional valve brand, supporting brand customization

 
 
 

CUSTOMIZED ELECTRO-HYDRAULIC SYSTEM SOLUTIONS FOR ALL APPLICATIONS

Integrating core component development, system design and customized Implementation Services

 
 
 

APPLICATION FIELDS

• Precision Injection Molding
• Die Casting
• Metallurgy & Foundry
• New Energy

 

 

CE Certificate

 

 

1

 

Hydraulic proportional valve CE certification certificate

 

Selection of Product Express Transportation

 

 

1

 

FAQ

 

 

Q: Can you do OEM and ODM?

A: Yes, OEM and ODM are both acceptable. We can customize product specifications (displacement, pressure, flow), control modes, logos, and packaging as you require. The minimum order quantity for customized orders will be advised after we discuss your specific needs in detail.

Q: How can we get a quote?

A: Contact us with detailed specifications, such as: For hydraulic pumps: Model, geometric displacement, rated pressure, flow rate, speed, and application scenario. For hydraulic valves: Model, size (NG), control type (voltage/current), pressure/flow requirements, and installation method. For hydraulic motors: Displacement, torque, power, speed, and working pressure. It's better if you can provide technical drawings or product pictures for more accurate quotation.

Q: How long is your delivery time?

A: - In-stock standard products: 1-3 days after receiving the balance payment. Regular non-stock products: 7-15 days after receiving the down payment. Customized products or bulk orders: 25-45 days, depending on the production complexity and order quantity.

Q: What's your term of delivery?

A: Our ordinary delivery term is EXW Foshan. We also accept FOB, CFR, CIF, DDP, etc. We will offer detailed shipping charges based on your destination, and you can choose the most convenient and cost-effective option.

Q: Do you have the test and audit service?

A: Yes, we can assist in providing designated product test reports (performance, pressure, flow, etc.) and factory audit reports. Our production process and quality control system are fully compliant with international industrial standards.

Q: Why Choose Bokin?

A: Bokin has an experienced team with more than 20 years' experience in the hydraulic industry, focusing on product R&D, production, and after-sales service. We also act as a buying office for overseas customers in China, providing one-stop hydraulic procurement solutions. Our core advantages include independent IP rights for proportional valves, monthly output of over 10,000 proportional valves, and long-term cooperation with well-known brands such as Rexroth, Parker, and Atos.

Q: Would you offer a discount for a large order?

A: Yes, we can provide different discount levels according to your order quantity. The larger the order quantity, the more favorable the discount. Please contact our sales team for detailed pricing.

Q: Can we cooperate with Bokin as an agent or exclusive agency?

A: Of course, we welcome cooperation as agents or exclusive distributors worldwide. We offer favorable cooperation policies including competitive pricing, marketing support, technical training, and regional protection. Please contact our overseas manager for detailed cooperation terms.

Q: What main software are you using in your product drawing?

A: We use the most advanced industry hydraulic component designing and developing software, such as AutoCAD, SolidWorks, and ANSYS, to ensure the accuracy and feasibility of product drawings and technical solutions.

Q: Payment Methods (Supplementary)

A: We accept T/T (Telegraphic Transfer), L/C (Letter of Credit), D/A (Documents against Acceptance), D/P (Documents against Payment), Western Union, and Alibaba Trade Assurance, etc.

 

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