YOULI SN-3/6S-3/18L/18L/18L/28L/26-1L/G334 Compact Multiple Hydraulic Control Valve

The YOULI SN-3/6S-3/18L/18L/18L/28L/26-1L/G334 Compact Multiple Hydraulic Control Valve offers robust and precise fluid power management for demanding industrial applications. This sophisticated valve unit excels in delivering exceptional control accuracy and operational efficiency, making it a preferred choice for complex hydraulic systems. Key advantages include its compact design, high flow capacity, and versatile configurations, enabling seamless integration into space-constrained environments. With a rated pressure of 31.5 MPa and a nominal flow rate of 18-28 L/min (depending on configuration), the SN-3/6S-3/18L/18L/18L/28L/26-1L/G334 ensures reliable performance under significant operational loads. Its advanced spool design and superior sealing technology minimize internal leakage, contributing to enhanced energy efficiency and reduced operational costs.

Product Specifications

| Parameter            | Specification                                 |

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

| Model                | SN-3/6S-3/18L/18L/18L/28L/26-1L/G334          |

| Rated Pressure       | 31.5 MPa (315 bar)                            |

| Max. Flow Rate       | 18-28 L/min (configuration dependent)         |

| Control Type         | Hydraulic                                     |

| Number of Sections   | Multiple (configurable)                       |

| Actuation Method     | Manual, Solenoid, Hydraulic (configurable)    |

| Seal Maraterial    | Victory, Buunt-NN-NS (configuration of Deframement) q        |

| Port Size            | Varies by configuration (e.g., G1/2, G3/4)   |

| Mounting             | Standard mounting interfaces                  |

| Operating Temperature | -20°C to +80°C                                |

Core Features & Market Positioning

The YOULI SN-3/6S-3/18L/18L/18L/28L/26-1L/G334 distinguishes itself through its modularity and high-performance characteristics, positioning it as a premium solution for intricate hydraulic circuits. Its core strength lies in its ability to integrate multiple control functions within a single, compact unit, thereby reducing piping, connection points, and overall system complexity. This design philosophy directly translates to reduced potential leak points and simplified maintenance procedures. The valve's precision-engineered spools and robust construction ensure long-term reliability and consistent performance, even in harsh industrial environments. Competitively, it offers superior flow-handling capabilities within its size class and a high degree of customization, allowing manufacturers to tailor hydraulic functions precisely to their machinery's requirements. This makes it an attractive option for OEMs seeking to optimize their hydraulic system designs for efficiency, reliability, and cost-effectiveness.

Key Application Scenarios

This versatile hydraulic control valve finds extensive application across numerous industrial sectors. It is ideally suited for mobile hydraulics, powering functions on construction equipment, agricultural machinery, and material handling systems where precise and responsive control of actuators like cylinders and hydraulic motors is critical. In industrial automation, the SN-3/6S-3/18L/18L/18L/28L/26-1L/G334 is deployed in machine tools, injection molding machines, and press systems, where its multi-section capability allows for simultaneous or sequential operation of various hydraulic circuits, enhancing production efficiency. Furthermore, its robust design and high pressure rating make it a reliable component in marine and offshore equipment, as well as specialized industrial processing machinery requiring dependable fluid power control.

Practical System Integration Guidance

Integrating the YOULI SN-3/6S-3/18L/18L/18L/28L/26-1L/G334 requires careful consideration of system pressure, flow requirements, and actuator specifications to select the optimal configuration. Ensure all hydraulic ports are clean and free from debris before installation. Proper tightening of hydraulic fittings is crucial to prevent leaks; consult the product manual for specific torque values. For solenoid-actuated versions, verify voltage compatibility and ensure correct electrical connections, referencing wiring diagrams to avoid damage. System flushing prior to connecting the valve is highly recommended to remove any contaminants that could affect spool movement or seal integrity. Initial commissioning should involve slowly introducing system pressure and cycling through all valve functions at low flow rates to check for proper operation and leaks before proceeding to full operational parameters.

Operation and Risk Mitigation

Safe operation of the YOULI SN-3/6S-3/18L/18L/18L/28L/26-1L/G334 hinges on adherence to system design parameters and recommended operating procedures. Always operate within the valve's rated pressure and flow limits to prevent component failure. Regularly inspect hydraulic lines and connections for signs of wear or leakage. In the event of unexpected system behavior or loss of control, immediately depressurize the system and consult the troubleshooting guide. Common issues may include spool sticking due to contamination, which can often be resolved by system flushing and filter maintenance. If a specific function fails, check for electrical faults in solenoid valves or mechanical issues with manual levers. Preventative maintenance, including regular fluid analysis and filter changes, is key to mitigating risks and ensuring longevity.

Scalability & Long-Term Value

The inherent modularity of the YOULI SN-3/6S-3/18L/18L/18L/28L/26-1L/G334 provides significant scalability for evolving hydraulic system needs. Additional control sections can be integrated into the valve manifold to accommodate increased functionality or higher flow demands as equipment upgrades occur, minimizing the need for complete system redesign. Its compatibility with standard hydraulic components and control systems ensures seamless integration into existing infrastructure. For businesses embracing Industry 4.0, the valve can be interfaced with digital controllers and sensors, enabling real-time monitoring, predictive maintenance, and remote diagnostics, thereby enhancing operational intelligence and long-term asset value. This adaptability ensures the valve remains a relevant and efficient component throughout the lifecycle of the machinery it serves.

Frequently Asked Questions

What is the maximum pressure rating for the YOULI SN-3/6S-3/18L/18L/18L/28L/26-1L/G334?

The YOULI SN-3/6S-3/18L/18L/18L/28L/26-1L/G334 features a robust maximum pressure rating of 31.5 MPa. This high pressure capability ensures reliable performance in demanding industrial and mobile hydraulic applications. It is designed to withstand significant operational loads without compromising integrity.

What are the typical flow rate capacities of this hydraulic valve?

The nominal flow rate for this valve series varies by specific configuration, generally ranging from 18 L/min to 28 L/min. This allows for tailoring the valve to specific system requirements and actuator needs. Precise flow rates depend on the chosen section and port sizes.

How does the compact design of this valve benefit hydraulic systems?

Its compact form factor reduces overall system footprint and weight. This is crucial for applications with limited space, such as mobile equipment. Fewer components also mean fewer potential leak points and simplified installation.

Can this valve be used in mobile hydraulic applications?

Yes, the YOULI SN-3/6S-3/18L/18L/18L/28L/26-1L/G334 is exceptionally well-suited for mobile hydraulics. Its durable construction and precise control are ideal for construction, agricultural, and material handling machinery. The valve's ability to handle varying loads is a key advantage.

What types of actuation methods are available for this valve?

This valve series supports multiple actuation methods, including manual, solenoid, and hydraulic control. This versatility allows system designers to select the most appropriate control interface for their specific application needs. It enhances integration flexibility.

How do I ensure proper installation to prevent leaks?

Proper installation involves ensuring all ports are clean and fittings are torqued to specification. Consulting the product manual for exact torque values is essential. System flushing before connection is also vital for contaminant removal.

What are common troubleshooting steps for issues with this valve?

Common issues include spool sticking due to contamination, which often requires system flushing and filter maintenance. Electrical issues for solenoid versions should be checked first. Inspecting for mechanical binding is also important.

How can the scalability of this valve be leveraged?

The modular design allows for easy addition of control sections to accommodate future system expansion. This avoids costly complete system redesigns. It supports increasing functionality or flow demands over time.

What are the implications of using this valve with IIoT or digital solutions?

It can be integrated with sensors and digital controllers for advanced monitoring and control. This enables real-time performance tracking and predictive maintenance strategies. It enhances system intelligence for Industry 4.0 applications.

What are the typical seal materials used in this valve?

Common seal materials include Viton and Buna-N, chosen based on the specific configuration and operating environment. These materials offer good chemical resistance and durability for hydraulic fluid compatibility. Seal selection impacts service life.