M4 VALVE OVERVIEW

M4 series multi-way directional valve is a modular load-sensing valve specially designed for mobile machinery, including M4-12, M4-15, M4-22 three displacement specifications.It adopts front pressure compensation to achieve load-independent flow regulation, compatible with open/closed hydraulic circuits. Multiple valve sections can be freely combined, supporting manual, hydraulic pilot and electro-proportional control. Perfectly interchangeable with Rexroth original M4 valve, widely matched with agricultural and construction machinery.

Features and Benefits

• Modular sandwich structure, 1–18 valve sections flexible combination for multi-action equipment

• Load-sensing compensation keeps steady flow under variable loads, low energy consumption

• Independent secondary overflow valve on each working port for overload protection

• Multiple control options: manual lever, hydraulic pilot, 12/24V electro-proportional solenoid

• Hardened valve spool & body, strong wear resistance and long service life

• Full interchangeability with Rexroth M4, direct replacement without pipeline modification

• Customizable spool function, flow rate and relief pressure for OEM demands

Specifications of M4 VALVE

• Rated inlet pressure: 350 bar (5076 PSI), Max inlet pressure: 380 bar

• Max pressure of A/B working ports: 420 bar (6092 PSI)

• Series flow range: M4-12 up to 100L/min, M4-15 up to 160L/min, M4-22 up to 400L/min

• Max valve sections: 9 sections (side inlet) / 18 sections (central inlet)

• Applicable hydraulic oil: AW anti-wear hydraulic oil ISO VG32 / VG46 / VG68

• Working temperature: -40℃ ~ +120℃

Applications

• Agricultural Machinery

  Large tractors, combine harvesters, farm loaders, self-propelled sprayers, balers
• Construction Machinery

  Wheel loaders, mini excavators, road rollers, truck-mounted cranes, aerial work platforms, backhoe loaders
• Municipal & Sanitation Equipment

  Road sweepers, garbage trucks, sewer cleaning vehicles, snow removal machines
• Mining & Special Engineering Vehicles

  Underground transport vehicles, drilling rigs, small mining loaders
• Other Mobile Hydraulic Machinery

  All mobile machines requiring synchronous and independent control of multiple actuators

Packaging & Delivery

M4 VALVE are typically packaged securely to prevent damage during transit. The packaging includes:

Protective Wrapping: To safeguard the pump from environmental damage.

Custom Crates: For larger, heavier pumps, ensuring safe handling.

Documentation: Includes installation, maintenance instructions, and warranty details.

Delivery time depends on the model, customizations, and location but typically ranges from 2 to 6 weeks from the order date.

M4 VALVE FAQ:

1. What is the M4 VALVE ?

• Modular sandwich design allows flexible combination of 1–18 valve sections for multi-function machines.

• Load-sensing front pressure compensation maintains steady flow and cuts energy loss under varying loads.

• Compatible with both open-center fixed pump and closed-center variable pump systems.

• Multiple control options: manual lever, hydraulic pilot, 12V/24V electro-proportional solenoid.

• Independent secondary relief valve on each working port for reliable overload protection.

• Hardened spool and valve body offer great wear resistance and long service life.

• Fully interchangeable with original Rexroth M4 valves for direct replacement without pipeline modification.

• Customizable spool functions, flow rates and relief pressures to meet OEM demands.
  
  

3. What is the working pressure range of M4 VALVE ?

The M4 VALVE is designed for medium and high-pressure hydraulic systems:

• Rated inlet pressure: 350 bar (5076 PSI), maximum inlet working pressure reaches 380 bar.

• Max pressure of A & B working ports: 420 bar (6092 PSI).
  
  

4. Can M4 VALVE replace other brands?

• Yes, our M4 valve is fully interchangeable with original Rexroth M4 series valves. It shares identical mounting dimensions, port layout and internal flow paths, so you can directly replace the original parts without modifying pipelines. At present, it mainly matches Rexroth M4 series; we can also customize valves to fit other brand specifications upon your OEM requirements.

  
  

5. What hydraulic oil is recommended for M4 VALVE ?

• The M4 valve has no fixed rotating speed itself. Its applicable flow ranges are as follows:
• M4-12 model: Max 100 L/min
• M4-15 model: Max 160 L/min

• M4-22 model: Max 400 L/min

• Match the pump output flow within the above range for normal stable operation.

7. Do you provide OEM or customized services?

• Yes, we support full OEM and customized services for M4 valves. We can customize the number of valve sections, spool flow, spool functions, secondary relief pressure and control modes (manual, hydraulic pilot, electro-proportional). Besides, we can print your brand logo on products and develop special valve blocks according to your equipment requirements.

8. How can I get a quotation quickly

Please provide the following details:

• Model or displacement

• Working pressure

• Speed

• Quantity
  We will reply within 12 hours with a competitive quotation.

  
  

Certifications & Quality Assurance

M4 VALVE are manufactured in compliance with international standards, ensuring high performance and reliability:

ISO 9001: Certified for quality management systems.

CE Certification: Ensures compliance with European safety, health, and environmental protection standards.

RoHS Compliance: Ensures the pump does not contain hazardous materials.

Factory Testing: Every pump is rigorously tested for performance, pressure, and leak integrity before shipping.

FAQ

1.What's our advantages?

Factory established in 2005;

With a great deal of production experience;

80+ employees become the professional team;

Constant updated ERP system ensure efficiency of work;

Sophisticated equipment ehanced the accuracy of products;

Professional salesmen provide the greast service;

With a large number of famous customers all over the world;

Great after-sales service;

With the long term cooperation with famous logistics and express company in China,provide the better goods service.

2.What is your payment terms?

Small order/sample order,full payment in advance; Big orders send the first payment 30% before the production,and the balance before shippment.We'll show the photos of the products and packages before delivery.

3.Can you make my own brand on the products?

Of course we can. Just send me your logo  we can make it for you.

4.What is our main export market?

America(40.5%):USA, Canada, Argentina, Brazil

Europe(30.8%):Italy,Germany,England,Holland,Spain,Swiss,Finland,Russia,Poland.

Asia(23.5%):Korea,singapore,India,Turkey,Vietnam,Saudi Arabia,Syria, Israel,Lebanon.

Others(5.8%).

The Green hydraulic pump manufacturing facility is a specialized industrial plant that focuses on producing hydraulic pumps and related components. These factories are equipped with advanced machinery and technology to fabricate high-quality pumps designed for a wide range of applications, from heavy equipment and machinery to automotive and industrial systems.

The production process typically involves precision engineering, where raw materials like metals and alloys are processed into pump components such as gears, pistons, cylinders, and seals. These parts are then assembled into fully functional hydraulic pumps, which are tested for performance and quality control to ensure reliability, efficiency, and durability under various working conditions.