I. Core Features

1. Ultra-Large Flow Capacity: Optimized internal flow channel design enables maximum flow up to 500 L/min, meeting the demands of ultra-high-flow hydraulic systems.
2. High-Pressure Durability: Maximum working pressure reaches 35 MPa (350 Bar, 5076 PSI) for 70-design models, supporting long-term stable operation under high-pressure heavy-duty conditions.
3. Pipeline-Free Stacked Installation: Direct stacking without pipelines reduces oil leakage, vibration and noise, simplifies system construction, and enhances overall structural reliability.
4. High Modular Integration: Diverse functional modules (pressure control, flow control, direction control, etc.) can be freely combined to quickly build complex hydraulic circuits with flexible configuration.
5. Robust Wet Solenoid Technology: Equipped with wet solenoids (e.g., for DSHG-06 directional valves) to deliver high durability, low noise and stable performance under prolonged high-pressure loads.
6. Precision Pressure Balance Structure: Adopted in throttle and flow control valves to ensure accurate flow regulation even under extreme high-pressure and large-flow conditions.
7. Simplified Maintenance: Modular design allows quick inspection, disassembly and replacement of individual valve components, minimizing system downtime.

II. Product Types and Models

• F: Special seal for phosphate ester hydraulic fluid
• MPA: Pilot-operated check valve (A-line)
• 06: Valve specification (D08/DN25)
• 2: Design number
• X: External pilot & external drain
• 70: High-pressure large-flow design

III. Technical Specifications

IV. Typical Application Fields

1. Ultra-Large Injection Molding Machinery: Precisely controls injection pressure/flow for 2000+ ton ultra-large injection molding machines, ensuring stable molding quality.
2. Heavy-Duty Press Machinery: Hydraulic systems for 3000+ ton hydraulic presses, providing precise pressure/flow control for metal forming and stamping.
3. Metallurgical & Steel Mill Equipment: High-temperature/high-pressure hydraulic systems for hot rolling mills, cold rolling mills and continuous casting machines in steel plants.
4. Large Construction Machinery: Hydraulic systems for 80+ ton excavators, crawler cranes and heavy bulldozers, meeting extreme pressure/flow demands.
5. Ship & Offshore Equipment: Hydraulic systems for large ships and offshore platforms (deck machinery, steering gear, cargo handling systems) with harsh environment resistance.
6. Mining Equipment: Hydraulic systems for large mining machinery (hydraulic shovels, loaders, drilling rigs) operating under extreme high-power conditions.
7. Heavy Industrial Machinery: Hydraulic control systems for large forging machines, wind turbine equipment and power plant machinery requiring high reliability.

V. Installation and Maintenance Points

1. Before Installation
   1. Thoroughly clean hydraulic oil and pipelines to prevent impurities from entering the valve body, avoiding component wear or blockage under ultra-high-flow conditions.
   2. Inspect seals for damage; use high-pressure resistant fluorine rubber seals for phosphate ester fluid or pressures above 25 MPa.
   3. Ensure mounting surfaces are flat, scratch/burr-free, and O-rings are intact and compatible with high-pressure large-flow applications.
   4. Verify hydraulic oil cleanliness meets NAS1638-10 class or higher to prevent valve jamming or premature wear.
2. During Installation
   1. Stack valves per hydraulic schematic, aligning oil ports correctly to avoid internal flow resistance and ensure unobstructed flow.
   2. Tighten bolts evenly to 15~18 Nm torque to prevent valve body deformation or oil leakage under high pressure.
   3. For solenoid directional valves, confirm electrical connections, solenoid orientation and system voltage compatibility (AC110V/220V or DC24V).
   4. Ensure pilot line alignment for pilot-operated valves to maintain reliable operation under extreme flow/pressure.
3. Maintenance
   1. Regularly monitor system pressure, flow, noise and temperature to detect internal wear early.
   2. When adjusting pressure, loosen the lock nut, turn the adjusting bolt clockwise to increase pressure, then retighten the nut; make small adjustments above 25 MPa.
   3. Promptly inspect seals and internal components if leakage or abnormal noise occurs, replacing worn parts to prevent system failure.
   4. Replace hydraulic oil and filters regularly (more frequently for large-flow systems) to maintain cleanliness and extend valve life.
   5. Do not exceed 3 stacking layers when pressure >25 MPa to ensure structural integrity and prevent leakage.

VI. Comparison with 01/03/04 Series