Yuken EFBG Valve | EFBG-03-125-C | EFBG-06-250 | EFBG-10-500 | Proportional Flow & Relief Valve

Yuken EFBG Series Proportional Electro-Hydraulic Flow & Relief Valves

Product Overview:

The Yuken EFBG series is a high-performance solution for energy-saving control in modern hydraulic systems. These valves integrate dual functionality—proportional pressure control (Relief) and proportional flow control—into a single unit, allowing for real-time adjustment of output based on load demand. From the precise control of the EFBG-03 to the high-capacity EFBG-10 (supporting up to 500 L/min), this series minimizes energy waste and prevents excessive oil heating. In 2026, the EFBG series is the industry standard for optimizing injection molding machines, large-scale die-casting units, and industrial extrusion equipment.

Featured models: EFBG-03-125-C/H, EFBG-06-250-C/H, EFBG-10-500-C/H, and the 1720 design sequence.

Key Technical Advantages:

• Integrated Multi-Function Control: Manages both system pressure and flow within one valve body, simplifying circuit design and reducing overall installation costs.

• Tiered Flow Capacities: Available in 125 L/min, 250 L/min, and 500 L/min nominal sizes to accommodate various power unit requirements from medium to heavy-duty.

• C/H Pressure Ranges: * C-Grade: Optimized for low-pressure precision adjustment (typically up to 7-14 MPa).

  • H-Grade: Engineered for high-pressure operations (up to 21-25 MPa).

• 1720 Design Sequence: Utilizing the latest 1720 technical iteration, the spool’s hydrodynamic characteristics are optimized for ultra-fine flow regulation and minimal hysteresis.

• Efficiency & Noise Reduction: Through load-sensing pressure-flow matching, the valves significantly boost system efficiency while improving noise performance under high-pressure conditions.

Detailed Specifications & Parameters:

• Featured Model Matrix:

  • EFBG-03-125-C/H: Size 03 (NG10), Rated Flow 125 L/min.

  • EFBG-06-250-C/H: Size 06 (NG25), Rated Flow 250 L/min.

  • EFBG-10-500-C/H: Size 10 (NG32), Rated Flow 500 L/min.

• Technical Specifications:

  • Rated Current: 0 – 800 mA or 0 – 900 mA (depending on amplifier).

  • Max Operating Pressure: 24.5 MPa (245 bar).

  • Repeatability: $\le 1\%$.

  • Hysteresis: $\le 3\%$.