YOULI MB-3/6S Compact Pilot Operated Hydraulic Valve

The YOULI MB-3/6S Compact Pilot Operated Hydraulic Valve is engineered for precision control in demanding industrial hydraulic systems. This valve boasts a high maximum flow rate of 6L/min and operates efficiently with a pilot pressure range of 0.1-1.0 MPa. Its compact design and robust construction ensure reliable performance, making it a superior choice for applications requiring accurate and responsive hydraulic actuation. The MB-3/6S features a normally closed (NC) configuration and a maximum working pressure of 35 MPa, delivering exceptional control over fluid power.

| Parameter             | Specification          |

| :-------------------- | :--------------------- |

| Model                 | MB-3/6S                |

| Type                  | Compact Pilot Operated |

| Function              | Hydraulic Valve        |

| Max. Flow Rate        | 6L/min                 |

| Pilot Pressure Range  | 0.1-1.0 MPa            |

| Max. Working Pressure | 35 MPa                 |

| Configuration         | Normally Closed (NC)   |

Core Features & Market Positioning

The YOULI MB-3/6S distinguishes itself through its pilot-operated design, which allows for sensitive and precise control of hydraulic circuits, even under high-pressure conditions. This technology minimizes internal leakage and ensures a smooth, consistent response, a critical factor in applications demanding accuracy. Its compact footprint is a significant advantage in space-constrained industrial environments, facilitating easier integration without compromising performance. YOULI's reputation for manufacturing durable and reliable hydraulic components further solidifies the MB-3/6S's market position as a high-value solution for critical control tasks.

Key Application Scenarios

This hydraulic valve finds extensive use in automated machinery, including injection molding machines, die-casting equipment, and robotic arms, where precise hydraulic actuation is paramount for product quality and operational efficiency. It is also integral to material handling systems, presses, and specialized industrial equipment requiring fine-tuned hydraulic power. The MB-3/6S is particularly well-suited for circuits where pilot pressure can be reliably supplied and modulated, offering a cost-effective yet high-performance alternative to larger or more complex valve configurations.

Practical System Integration Guidance

Integrating the YOULI MB-3/6S requires careful attention to pilot pressure porting and main flow connections. Ensure the pilot signal line is free of obstructions and delivers the specified pressure range (0.1-1.0 MPa) to reliably actuate the valve. Proper filtration of the hydraulic fluid is essential to prevent contaminants from affecting the pilot mechanism and valve spool. Connection to the main hydraulic line should follow standard industrial practices, ensuring secure seals to prevent leaks and maintain system integrity.

Operation and Risk Mitigation

Safe operation of the YOULI MB-3/6S relies on adhering to its specified pressure and flow limits (Max. Working Pressure: 35 MPa, Max. Flow Rate: 6L/min). Regular inspection of pilot and main lines for leaks or damage is crucial. System designers should incorporate appropriate pressure relief mechanisms to safeguard against over-pressurization. In case of erratic operation, check the pilot pressure supply for consistency and ensure the main hydraulic fluid is clean and at the correct operating temperature. Avoid exceeding the specified operational parameters to prevent premature wear or failure.

Scalability & Long-Term Value

The YOULI MB-3/6S offers excellent long-term value due to its robust design and compatibility with standard hydraulic system components. While this specific model is a compact unit, YOULI provides a range of hydraulic valves that can be integrated into more complex systems as scalability demands increase. Its reliable performance minimizes downtime, contributing to overall operational efficiency. The inherently durable construction of YOULI products ensures a long service life, reducing the need for frequent replacements and supporting a sustainable industrial operation.

Frequently Asked Questions

What is the pilot pressure range for the YOULI MB-3/6S?

The YOULI MB-3/6S operates with a pilot pressure range of 0.1 to 1.0 MPa. This allows for precise control over the valve's actuation.

Maintaining the correct pilot pressure is key for reliable performance. Ensure your system's pilot pressure source stays within these specified limits.

Correct pilot pressure is crucial for smooth operation and valve longevity. Deviations can lead to sluggish response or component damage.

What is the maximum flow rate this hydraulic valve can handle?

This compact hydraulic valve, the YOULI MB-3/6S, is rated for a maximum flow rate of 6 liters per minute. This specification is vital for system design.

Ensure your hydraulic circuit's flow requirements do not exceed 6L/min to prevent valve damage. It's designed for moderate flow applications.

Exceeding the 6L/min maximum flow rate can lead to overheating and reduced valve lifespan. Always design within specified limits.

What is the maximum working pressure for the YOULI MB-3/6S valve?

The YOULI MB-3/6S hydraulic valve is designed to handle a maximum working pressure of 35 MPa. This is a critical safety and performance parameter.

Always operate this valve below its 35 MPa maximum pressure limit to ensure system safety and durability. Pressure spikes should be managed.

Operating above 35 MPa can cause catastrophic failure, posing significant safety risks. Adhere strictly to this pressure rating.

Can the YOULI MB-3/6S valve be used in normally open (NO) configurations?

No, the YOULI MB-3/6S is specifically manufactured and designed for normally closed (NC) operation only. This means it blocks flow when unactuated.

Its internal design is optimized for blocking flow in its default state. Reconfiguring it to NO is not supported or recommended.

The NC configuration ensures that hydraulic flow is prevented until a pilot signal is applied. This is a key characteristic for safety systems.

How does the pilot-operated mechanism benefit this hydraulic valve?

The pilot-operated design allows for sensitive actuation, meaning a small pilot pressure controls a larger hydraulic flow. This improves control precision.

It reduces the required actuating force, making the valve easier to control and more responsive to signal changes. This is ideal for automation.

This operational principle also helps to minimize internal leakage and ensures smoother transitions between flow states. It enhances overall system efficiency.

What are the typical industries where the YOULI MB-3/6S valve is utilized?

This valve is commonly found in manufacturing automation, such as injection molding and die-casting machinery. Precision is key here.

It's also integral to material handling systems, robotic applications, and various types of industrial presses requiring accurate hydraulic control. These sectors demand reliability.

You will also see the MB-3/6S in specialized hydraulic circuits for testing equipment and other custom-built industrial machinery. Its versatility shines here.

What technical considerations are important for integrating this valve into a system?

Proper pilot pressure supply within the 0.1-1.0 MPa range is essential for correct valve actuation. Ensure the pilot source is stable.

System fluid cleanliness is critical; contamination can impede the pilot mechanism and shorten the valve's life. Use appropriate filtration.

Secure connections for both pilot and main hydraulic lines are necessary to prevent leaks and maintain system efficiency and safety. Check seals diligently.

How does the compact size of the MB-3/6S offer an advantage?

Its compact dimensions allow for easier installation in machinery where space is limited, facilitating denser component layouts. This saves valuable panel space.

This design can simplify system plumbing and reduce the overall footprint of hydraulic power units, leading to more streamlined equipment. It promotes efficiency.

The smaller size often translates to reduced material usage and potentially lower shipping costs, adding to its economic value. It's practical for modern designs.

What maintenance is recommended for the YOULI MB-3/6S hydraulic valve?

Regular inspection for external leaks around seals and connections is crucial for safety and efficiency. Address any leaks promptly.

Monitor system fluid condition and ensure filtration is effective to prevent internal contamination of the valve's sensitive pilot mechanism. Clean fluid is vital.

Periodic checks of the pilot pressure source for consistency and accuracy help ensure optimal valve performance and longevity. Maintain pilot supply.

Is the YOULI MB-3/6S valve suitable for high-cycle applications?

Yes, its robust construction and precise pilot operation make it suitable for many high-cycle industrial applications. Durability is a key feature.

The efficient design minimizes wear during frequent actuation, contributing to a longer service life even under demanding operational schedules. It's built to last.

However, always ensure the application stays within the specified flow and pressure limits to maximize its lifespan in high-cycle scenarios. Adherence is key.