I. Core Features

1. Super-Large Flow Capacity: Optimized internal flow channel design enables a maximum flow rate of 800 L/min, meeting the demands of extreme high-flow hydraulic systems.
2. High-Pressure Resistance: Maximum working pressure reaches 25 MPa (250 Bar, 3630 PSI), supporting long-term stable operation under continuous high-pressure heavy-duty loads。
3. Pipeline-Free Stacked Installation: Direct stacking without pipelines significantly reduces oil leakage, vibration, and noise, simplifies system construction, and enhances overall structural rigidity and reliability.
4. Ultra-High Modular Integration: Diverse functional modules (pressure control, flow control, direction control, etc.) can be freely combined to quickly build complex hydraulic circuits with maximum configuration flexibility.
5. Heavy-Duty Wet Solenoid Technology: Equipped with robust wet solenoids (e.g., for DSHG-10 directional valves) to deliver exceptional durability, low noise, and stable performance under prolonged extreme pressure and flow conditions.
6. Precision Pressure Balance Structure: Adopted in throttle and flow control valves to ensure highly accurate flow regulation even under extreme high-pressure and super-large-flow conditions.
7. Simplified Heavy-Duty Maintenance: Modular design allows for quick inspection, disassembly, and replacement of individual valve components, minimizing system downtime and maintenance costs.

II. Product Types and Models

• F: Special seal for phosphate ester hydraulic fluid
• MPA: Pilot-operated check valve (A-line)
• 10: Valve specification (D10/DN32)
• 2: Design number
• X: External pilot & external drain
• 30: Standard pressure design

III. Technical Specifications

IV. Typical Application Fields

1. Ultra-Large Injection Molding Machinery: Precisely controls injection pressure/flow for 3000+ ton ultra-large injection molding machines, ensuring stable molding quality.
2. Heavy-Duty Press Machinery: Hydraulic systems for 5000+ 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 large hot rolling mills, cold rolling mills, and continuous casting machines in steel plants.
4. Super-Large Construction Machinery: Hydraulic systems for 100+ ton excavators, large crawler cranes, and heavy mining bulldozers, meeting extreme pressure/flow demands.
5. Ship & Offshore Equipment: Hydraulic systems for large container 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 super-large-flow conditions.
   2. Inspect seals for damage; use high-pressure resistant fluorine rubber seals for phosphate ester fluid or pressures above 21 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 NAS1638-8 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 18~22 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 21 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 to ensure structural integrity and prevent leakage.

VI. Comparison with 01/03/04/06 Series