YUKEN EFBG-06-250-H-2/T 145 Proportional Valve Specification
1. Product Overview
EFBG-06-250-H-2/T 145 is an original integrated proportional Hydraulic valve developed by Japan YUKEN, combining proportional flow regulation and proportional pressure relief functions in one unit. It acts as the core energy-saving control component of the whole hydraulic system, adjusting system flow and working pressure steplessly via analog electric signals. Matched with various hydraulic pump types to form closed-loop hydraulic system, it replaces separate valve combinations to simplify piping layout and cut down energy consumption and leakage risks[(YUKEN ČR s...)].
2. Model Definition
- EFBG: Series code for energy-saving proportional flow & relief composite Hydraulic valve
- 06: NG10 standard CETOP plate mounting size
- 250: Max rated flow 250L/min
- H: Pressure adjusting range 1.4~24.5MPa (high-pressure version)
- 2: 24V DC standard proportional solenoid
- /T: Built-in temperature compensation structure
- 145: Factory customized internal damping and spool calibration code
3. Construction & Materials
1. Forged steel valve body, deformation and corrosion resistant for harsh industrial hydraulic system conditions
2. Integrated main flow spool, pilot relief spool, dual proportional solenoids, differential pressure & temperature compensation components
3. Standard plate mounting for direct installation on hydraulic manifold blocks
4. NBR standard seals for ISO VG32/46/68 mineral hydraulic oil
4. Technical Parameters
Item Specification
Product Type Integrated proportional Hydraulic valve
Max Flow Rate 250 L/min
Pressure Range 1.4 ~ 24.5 MPa
Power Supply DC24V
Rated Coil Current 700mA
Control Signal 0~10V DC / 4~20mA
Repeatability ≤1%, Hysteresis ≤3%
Compensation Pressure + Temperature dual compensation
Operating Temp -10℃ ~ +60℃
Net Weight 3.3 KG
5. Working Principle
Two independent proportional solenoids of this Hydraulic valve control throttle unit and relief unit separately. Electric signals from controller adjust throttle opening to regulate flow for actuator speed control, and set maximum safety pressure of the hydraulic system via relief spool. Dual compensation offsets flow fluctuation caused by load and oil temperature changes. The valve tracks load pressure dynamically to minimize pressure difference between pump and load, reducing heat generation and power waste of the whole hydraulic system .
6. Features & Application
1. All-in-one structure reduces piping and leakage points of the hydraulic system
2. Dual compensation ensures stable flow output under long continuous operation
3. High-precision electric control delivers smooth movement and optimizes hydraulic system performance
4. Energy-saving load-following pressure regulation lowers power consumption