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EFBG-03-125-61/06-250-61/10-500-51 Flow Control and Relief Valves

更新时间：2026-05-05 11:23:22

EFBG-03-125-61/06-250-61/10-500-51 is an electro-hydraulic proportional pressure and flow compound valve, a high-performance hydraulic control component produced by Japan YUKEN Corporation. Essentially, it is a combination of three EFBG series valves with different specifications (EFBG-03-125-61, EFBG-06-250-61, EFBG-10-500-51). Its core function is to proportionally and linearly control the pressure and flow of the hydraulic system according to the input current signal, with the characteristics of energy saving, high-precision control and safety protection, and it is widely used in various automatic hydraulic equipment.

I. Model Parameter Interpretation

In this composite model, each part of the code corresponds to the core specifications of the valve. The specific interpretation is as follows, combined with industry standards and YUKEN product specifications:

Model Segment	Code Meaning	Specific Parameters
EFBG	Series Name	Electro-hydraulic proportional pressure and flow compound valve, integrating flow control and relief (pressure control) functions, composed of electro-hydraulic proportional electromagnet, low-noise logic cartridge valve and poppet valve.
03/06/10	Nominal Size (Port Diameter)	03: Corresponding to G1/4 port (10 port diameter); 06: Corresponding to 3/4” port; 10: Corresponding to 1 1/4” port, which determines the flow range and installation specifications of the valve.
125/250/500	Maximum Adjustment Flow	125: Maximum flow 125L/min; 250: Maximum flow 250L/min; 500: Maximum flow 500L/min, covering the flow requirements of medium and large hydraulic systems.
61/51	Seal Specification	Both are fluororubber seals, suitable for high-temperature and environmentally friendly oil working conditions, ensuring the sealing performance of the valve and extending its service life. Among them, 51 is one of the commonly used seal specifications.

II. Core Technical Parameters (by Specification)

The three combined valves share the core technical characteristics of the EFBG series, and only differ in parameters such as nominal size, flow rate and weight. The specific parameters are summarized below (refer to YUKEN official standard parameters):

Specification Model	Maximum Working Pressure	Flow Adjustment Range	Installation Method	Weight	Core Control Parameters
EFBG-03-125-61	25MPa (250kgf/cm²)	1~125L/min	Plate Mounting (CETOP-3 Standard)	16kg	Flow Control: Rated Current 680mA, Coil Resistance 43.5Ω; Pressure Control: Adjustment Range 1.4~14MPa (Type C)/1.4~21MPa (Type H), Rated Current 710mA (Type C)/770mA (Type H), Coil Resistance 10Ω
EFBG-06-250-61	25MPa (250kgf/cm²)	2~250L/min	Plate Mounting	33kg	Flow Control: Rated Current 750mA, Coil Resistance 40Ω; Pressure Control: Adjustment Range 14MPa (Type C)/21MPa (Type H), Rated Current 750mA (Type C)/700mA (Type H), Coil Resistance 10Ω
EFBG-10-500-51	25MPa (250kgf/cm²)	5~500L/min	Plate Mounting	58kg	Flow Control: Rated Current 750mA, Coil Resistance 40Ω; Pressure Control: Adjustment Range 14MPa (Type C)/21MPa (Type H), Rated Current 750mA (Type C)/700mA (Type H), Coil Resistance 10Ω, suitable for large-flow hydraulic systems.

Supplementary Note: All three valves have the characteristics of small hysteresis (flow control <7%, pressure control <3%) and high repeatability (≤1%), and all need to be used with supporting power amplifiers to ensure control accuracy.

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EFBG-03-125-61/06-250-61/10-500-51 Flow Control and Relief Valves

I. Model Parameter Interpretation

II. Core Technical Parameters (by Specification)