YOULI MB-5/2S Precision Hydraulic Control Valve
The YOULI MB-5/2S Precision Hydraulic Control Valve stands as a robust solution for demanding industrial applications requiring precise fluid management. This solenoid-operated directional control valve, engineered for reliability and performance, offers exceptional flow rates and pressure handling capabilities. Key technical specifications include a nominal flow rate of 45 L/min and a maximum operating pressure of 31.5 MPa, ensuring its suitability for high-power hydraulic systems. With a compact design and versatile porting options, the MB-5/2S integrates seamlessly into various machinery, from machine tools to injection molding equipment.
Product Specifications
| Feature | Specification |
| :--------------------- | :-------------------------------- |
| Model | MB-5/2S |
| Type | Solenoid-operated directional |
| Number of Positions | 2 |
| Number of Ways | 2 |
| Nominal Flow Rate | 45 L/min |
| Max. Operating Pressure| 31.5 MPa |
| Coil Voltage | Various (e.g., 24 VDC, 110/220 VAC) |
| Standard Interface | ISO 4401-5-07-3-00 / DIN 24340 A5 |
| Seal Material | Viton, NBR |
Core Features & Market Positioning
The YOULI MB-5/2S distinguishes itself through its superior responsiveness and operational longevity. Its precision-engineered spool and solenoid assembly ensures rapid switching times and repeatable performance, critical for automated manufacturing processes where cycle times and accuracy are paramount. Compared to standard control valves, the MB-5/2S offers enhanced durability through high-quality materials and rigorous manufacturing standards, translating into reduced downtime and lower maintenance costs for end-users. This focus on reliability positions the MB-5/2S as a preferred component in sectors demanding uncompromising hydraulic control.
Key Application Scenarios
This versatile hydraulic valve finds extensive use across numerous industrial sectors. In manufacturing, it expertly manages fluid power for machine tool operations, enabling precise control of cutting speeds, feed rates, and clamping mechanisms. For plastic injection molding machines, the MB-5/2S is integral to controlling injection pressure, mold closing, and ejector functions, ensuring high-quality part production. Furthermore, its robust design makes it suitable for mobile hydraulics, such as in construction equipment and agricultural machinery, where it directs hydraulic flow for lifting, steering, and auxiliary functions under challenging environmental conditions.
Practical System Integration Guidance
Integrating the YOULI MB-5/2S into existing hydraulic circuits is straightforward due to its adherence to the ISO 4401-5-07-3-00 interface standard. Proper installation involves ensuring the valve is mounted on a clean manifold block with correctly torqued fasteners to prevent leaks and maintain seal integrity. Electrical connections to the solenoid coil must match the specified voltage and polarity; incorrect wiring can lead to coil failure or malfunction. Initial commissioning should involve a slow, controlled pressurization of the system, gradually introducing flow while monitoring for leaks and verifying correct valve actuation through manual or electrical signals.
Operation and Risk Mitigation
Safe and efficient operation of the YOULI MB-5/2S hinges on adherence to system design parameters and regular maintenance. Users must ensure the hydraulic fluid used meets the specified cleanliness standards to prevent spool contamination, a common cause of erratic operation or leakage. Over-pressurization beyond the 31.5 MPa limit can lead to component damage or system failure, necessitating the use of appropriately rated relief valves. In the event of system faults, operators should consult the product manual for specific diagnostic information; however, common issues like slow actuation or leakage often point to fluid contamination, worn seals, or inadequate electrical signals to the solenoid.
Scalability & Long-Term Value
The YOULI MB-5/2S offers significant long-term value through its compatibility and potential for integration with advanced automation systems. Its standard interface ensures it can replace or upgrade existing valves from other manufacturers adhering to the same standard, facilitating system modernization without extensive re-engineering. For facilities moving towards Industry 4.0, the MB-5/2S can be incorporated into smart hydraulic systems, where its performance data can be monitored and analyzed to optimize operations and predict maintenance needs. This forward-looking design ensures the valve remains a valuable asset in evolving industrial landscapes.
Frequently Asked Questions (FAQs)
What is the maximum flow rate for the YOULI MB-5/2S?
The YOULI MB-5/2S is rated for a nominal flow rate of 45 liters per minute.
This flow capacity makes it ideal for medium to high-demand hydraulic circuits.
Ensuring the system's pump and plumbing can support this rate is crucial for optimal performance.
What hydraulic pressures can the MB-5/2S valve withstand?
This precision hydraulic control valve can operate at a maximum pressure of 31.5 MPa.
Exceeding this pressure limit risks component damage and system failure.
Always integrate appropriate pressure relief valves into your hydraulic circuit design.
What type of electrical connection is required for the MB-5/2S solenoid?
The MB-5/2S is available with various coil voltages, commonly including 24 VDC and 110/220 VAC.
Users must verify the specific coil voltage and ensure correct polarity for DC applications.
Improper electrical connections can lead to solenoid burnout or erratic valve operation.
How does the MB-5/2S valve ensure precise control?
Its design features a high-quality spool and solenoid assembly for accurate actuation.
This precision engineering guarantees rapid response times and consistent positioning.
Repeatable performance is vital for demanding automated manufacturing processes.
What are the primary industries that benefit from using the YOULI MB-5/2S?
Key sectors include machine tool manufacturing, injection molding, and mobile hydraulics.
It's widely applied in equipment requiring reliable and accurate fluid power control.
Applications range from industrial automation to construction and agricultural machinery.
Is the YOULI MB-5/2S compatible with existing hydraulic systems?
Yes, it adheres to the ISO 4401-5-07-3-00 standard interface.
This ensures compatibility with manifolds and systems designed to this common specification.
Upgrading older valves is often possible without significant system modifications.
What maintenance is typically required for the MB-5/2S valve?
Maintaining fluid cleanliness is paramount to prevent spool contamination and leakage.
Regular inspection for external leaks and proper electrical connection checks are recommended.
Seal wear is a natural aging process, requiring eventual replacement for continued optimal function.
How can I troubleshoot a slow response from the MB-5/2S valve?
First, check the electrical signal to the solenoid for proper voltage and continuity.
Next, examine the hydraulic fluid for contamination, which can impede spool movement.
Ensure the valve is correctly seated on the manifold and not subject to external obstruction.
Can the MB-5/2S valve be used in harsh environmental conditions?
The valve's robust construction and material options (like Viton seals) enhance durability.
However, extreme temperatures or corrosive elements may impact longevity without additional protection.
Consult YOULI for specific environmental rating or sealing options if required.
Does the YOULI MB-5/2S support integration with IIoT or smart factory initiatives?
While the valve itself is a mechanical component, it can be integrated into IIoT systems.
Sensors can be added to monitor its status, and it can be controlled by PLCs connected to network systems.
This enables performance data collection for predictive maintenance and process optimization.
