I. Core Features

1. High-Pressure Large-Flow Design: Optimized internal structure to handle higher pressure and larger flow rates while maintaining compact dimensions.
2. Pipeline-Free Connection: Stacked installation reduces oil leakage, vibration and noise issues, simplifies system construction, and improves overall reliability.
3. High Integration: Various functional modules can be freely combined, allowing quick construction of complex hydraulic circuits with flexible configuration options.
4. Easy Maintenance: The modular structure facilitates quick inspection, maintenance and replacement of individual valve components, reducing downtime.
5. Wet Solenoid: Used in solenoid directional valves (such as DSG-03) to achieve high durability, low noise and stable operation under long-term high-pressure working conditions.
6. Advanced Pressure Balance Structure: Adopted in throttle valves and flow control valves to ensure precise flow regulation even under high pressure conditions.
7. High Performance Parameters: Maximum working pressure up to 31.5 MPa (315 Bar, 4570 PSI), maximum flow rate 70 L/min (18.49 U.S.GPM) (varies slightly by valve type).

II. Product Types and Models

• F: Series Identification (indicating special seal for phosphate ester hydraulic fluid)
• MCP: Valve Type (Check Valve)
• 03: Valve Specification
• 2: Design Number (70 design for high-pressure large-flow models)
• 70: Special Seal Series Number (updated for higher pressure resistance)

III. Technical Specifications

IV. Typical Application Fields

1. Large-Scale Machine Tool Equipment: Hydraulic system control of heavy-duty CNC machine tools, gantry machining centers and special-purpose machines requiring high pressure and large flow.
2. Large Injection Molding Machinery: Precisely controls injection pressure and flow rate, adapting to large-tonnage injection molding machines (over 500 tons) and ensuring stable molding quality.
3. Heavy-Duty Automated Production Lines: Direction, speed and pressure control of executive components in large-scale automated production lines with high power requirements.
4. Metallurgical & Steel Mill Equipment: Hydraulic systems operating under high temperature and high pressure conditions in steel mills and metallurgical plants, such as rolling mills and continuous casting machines.
5. Heavy Construction Machinery: Hydraulic systems of large construction machinery, including excavators, cranes and bulldozers, meeting high pressure and large flow requirements.
6. Ship and Offshore Equipment: Hydraulic systems for ships and offshore platforms, with reliable performance under harsh working environments and high pressure conditions.
7. Press Machinery: Hydraulic systems of large hydraulic presses (over 1000 tons) requiring precise pressure and flow control.

V. Installation and Maintenance Points

1. Before Installation:
2. Clean hydraulic oil and pipelines thoroughly to prevent impurities from entering the valve body, which may cause component wear or blockage under high pressure conditions.
3. Check the condition of seals to ensure no damage; use special high-pressure resistant fluorine rubber seals when using phosphate ester hydraulic fluid or operating at pressures above 25 MPa.
4. Confirm that the mounting surface is flat, free of scratches or burrs, and the O-ring on the mounting surface is intact and compatible with high-pressure applications.
5. During Installation:
6. Stack valves in the order of the hydraulic principle diagram, paying attention to the direction of oil ports and ensuring correct alignment of each valve to avoid internal flow resistance issues.
7. Tighten bolts evenly with the specified torque (8~10 Nm) to avoid valve body deformation or oil leakage under high pressure.
8. For solenoid directional valves, pay attention to electrical connections and solenoid direction, and ensure compatibility with the system voltage (AC110V/220V or DC24V).
9. Ensure proper alignment of pilot lines for pilot-operated valves to maintain reliable operation under high pressure.
10. Maintenance:
11. Regularly check system pressure and flow rate to ensure normal operation; monitor for any abnormal noise or temperature rise which may indicate internal wear.
12. When adjusting pressure, first loosen the lock nut, rotate the adjusting bolt clockwise to increase pressure, and retighten the nut after adjustment; make small adjustments when working at pressures above 25 MPa.
13. If oil leakage or abnormal noise is found, promptly check seals and internal valve components, and replace worn parts in time to prevent system failure under high pressure.
14. Regularly replace hydraulic oil and filters according to the system requirements to maintain cleanliness and extend valve life.

VI. Comparison with 01 and 007 Series