DFA & DFB Solenoid Valve | DFA-02 DFA-03 | 2B2 3C60 3C11 | AC110V DC24V D12 | Directional Control Valve

DFA & DFB Series Direct-Operated Solenoid Valves

Product Overview:

The DFA and DFB series are pivotal directional control components in industrial hydraulic systems, widely utilized in machine tools, automated production lines, and hydraulic power units. This range encompasses both the compact 02 (NG6) and the high-flow 03 (NG10) specifications. Featuring a wet-armature design, the armature moves smoothly within the hydraulic fluid, eliminating dynamic seal leakage risks while significantly reducing shifting shock and noise. With rugged cast bodies and optimized flow paths, DFA/DFB valves maintain exceptionally low pressure drops even under high-pressure conditions.

Featured models: DFA-02-2B2-D12-35C-7F, DFB-02-2B3-A110V-32-13, DFA-03-3C60-DC24V-3519F, and DFA-03-3C11-DC24V-3519F.

Key Technical Advantages:

• Wet-Armature Technology: The armature is immersed in oil for excellent self-lubrication, ensuring smooth shifting and an extremely long mechanical service life.

• Versatile Electrical Configurations: Supports DC24V, DC12V (D12), and AC110V, making them compatible with major industrial control systems worldwide.

• High-Pressure Capability: Engineered for demanding environments with ratings up to 31.5 MPa (315 bar) or 35 MPa.

• Wide Range of Spool Functions: * 2B2 / 2B3: 2-position 4-way single solenoid for fundamental switching logic.

  • 3C60 / 3C11: 3-position 4-way double solenoid, providing various centering logics (e.g., all ports blocked or unloading).

• Superior Protection: Molded coils provide excellent insulation, achieving IP65 protection when used with standard junction boxes or connectors.

Detailed Specifications & Parameters:

• Featured Model Matrix:

  • DFA-02 / DFB-02: Size 06 (NG6), standard subplate mounting interface.

  • DFA-03: Size 10 (NG10), designed for hydraulic circuits requiring higher flow rates.

  • 35C / 3519F: Denotes specific design series and performance enhancement configurations.

• Core Technical Specs:

  • Max Operating Pressure: 31.5 – 35 MPa.

  • Max Flow Capacity: Up to 80 L/min for 02 series; 120-160 L/min for 03 series.

  • Electrical Interface: Standard terminal box or plug-in type.

  • Hydraulic Media: Mineral-based hydraulic oils (viscosity range 15-400 $mm^2/s$).