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4WRL25V370M-30/G24Z4 M & 4WRPH6C3B24L-20=G24Z4/M=00 Hydraulic Proportional Valve for Industrial Machinery

This combined set includes 4WRL25V370M-30/G24Z4 M pilot-operated proportional directional valve and 4WRPH6C3B24L-20=G24Z4/M=00 direct operated proportional directional valve. Both are equipped with proportional solenoid and spool position feedback system. Electric control signal drives spool displacement to continuously adjust flow rate and flow direction for hydraulic actuators.
The valves maintain high repeatability and low hysteresis under variable working loads. Precision matched spool and sleeve assembly reduces internal leakage, guarantees accurate flow regulation and suppresses hydraulic shock during frequent dynamic adjustment cycles.
This proportional valve family has multiple size and flow rating selections. It adopts closed-loop proportional electric control and can integrate into various high-performance hydraulic circuits. It serves as high-precision motion control components for stationary and mobile heavy-duty hydraulic equipment.

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Introduction to the 4WRL & 4WRPH Series Hydraulic Proportional Valve

This hydraulic proportional valve set delivers precise and continuous hydraulic flow and directional regulation via closed-loop position feedback design. It achieves smooth stepless motion control of cylinders and hydraulic motors and ensures consistent control performance for automated high-precision hydraulic systems.

Details of the 4WRL & 4WRPH Series Hydraulic Proportional Valve

These proportional valves are engineered to cope with demanding industrial operating environments. They preserve outstanding control accuracy in long continuous running and provide high-response precision hydraulic control for heavy-duty automated machinery.

FEATURES

Features of the 4WRL25V370M-30/G24Z4 M & 4WRPH6C3B24L-20=G24Z4/M=00 Series Hydraulic Proportional Valve

Closed-loop Proportional Control

Closed-loop Proportional Control

Built-in spool position feedback realizes closed-loop control, enabling continuous and stepless adjustment according to analog electric input signals.

High Pressure Resistance & Precise Flow Regulation

High Pressure Resistance & Precise Flow Regulation

Precision spool and sleeve machining minimizes internal leakage and maintains stable flow output under high working pressure.

Fast Dynamic Response & Low Hydraulic Impact

Fast Dynamic Response & Low Hydraulic Impact

Optimized spool profile shortens response time and reduces pressure shock and vibration during dynamic flow adjustment.

Wear-resistant Structure & Extended Service Life

Wear-resistant Structure & Extended Service Life

High-grade matching components and reliable sealing materials reduce abrasion and lower regular maintenance requirements.

Broad Hydraulic System Compatibility

Broad Hydraulic System Compatibility

Standard ISO subplate mounting pattern supports simple installation and replacement for various high-precision hydraulic control systems.

APPLICATIONS

Related Application

Application & Usage

Hydraulic Proportional Valve for Construction

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It provides high-precision motion control for hydraulic systems of excavators and heavy construction machinery.

Hydraulic Proportional Valve for Agriculture

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It delivers accurate flow and direction control for agricultural machinery and farming equipment hydraulic drive system.

Hydraulic Proportional Valve for Marine

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It controls hydraulic actuators of marine equipment hydraulic system and supports continuous operation under marine vibration conditions.

Hydraulic Proportional Valve for Mining

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It is fitted on mining equipment for heavy duty operation and keeps precise control performance in harsh working environment.

Hydraulic Proportional Valve for Metallurgy

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It is applied to metallurgy equipment industrial hydraulic control and meets high pressure and high precision industrial application requirements.

Products Feedback

Questions & Answers

Can you customize products to my specifications?

Absolutely. We provide OEM/ODM services and can manufacture according to your samples or technical drawings.

How quickly can you deliver products?

For in-stock items, we can ship within 3 days. For custom or non-stock items, delivery usually takes 7–15 days. We’ll confirm exact timing based on current inventory.

Is there a minimum order quantity?

Yes, but it’s flexible. Spare parts often have an MOQ of 1 piece, while complete pumps or motors vary by model—please inquire for details.

Are you a factory or a trading company?

We are a hybrid—both a manufacturer and a trading company. We produce our own products and also source specific components to offer complete solutions.

How do you ensure product quality?

We follow strict quality control protocols. All parts undergo CNC machining and heat treatment, and each is 100% tested before delivery to guarantee precision and reliability.

What payment methods do you accept?

We accept T/T, L/C, Western Union, Alibaba Trade Assurance, and VISA. For new customers, we usually require full prepayment or a 30% deposit with the balance due before shipment.

What shipping methods are available?

We offer flexible shipping via express carriers (DHL, FedEx, UPS) and sea freight (CIF/FOB). We can also deliver to your designated freight forwarder in China.

What is the warranty period for your products?

All products come with a 1-year warranty, provided they are installed and operated under normal conditions.

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