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EFBG-03/06/10-17 Flow Control and Relief Valves

更新時間：2026-05-29 15:34:43??

EFBG-03/06/10-17 is a high-performance electro-hydraulic proportional pressure and flow compound valve, produced by Japan YUKEN Corporation. Essentially, it is a combination of three EFBG series valves with different specifications (EFBG-03-17, EFBG-06-17, and EFBG-10-17). Its core function is to proportionally and linearly control the flow rate and pressure of the hydraulic system according to the input current signal, and provide overload safety protection through the relief function, with the characteristics of energy saving, high-precision control and stable operation, widely used in various medium and large-scale 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 overload protection) 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, adapting to hydraulic systems of different scales.
17	Seal Specification	Nitrile rubber (NBR) seal, suitable for general hydraulic oil working conditions, with good oil resistance and sealing performance, ensuring the valve operates stably without oil leakage, and is a cost-effective seal specification commonly used in YUKEN EFBG series valves.

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-03-17	25MPa (250kgf/cm²)	1~80L/min	Plate Mounting (CETOP-3 Standard)	15kg	Flow Control: Rated Current 650mA, Coil Resistance 44Ω; Relief Function: Adjustment Range 1.4~14MPa (Type C)/1.4~21MPa (Type H), Rated Current 700mA (Type C)/760mA (Type H), Coil Resistance 10Ω.
EFBG-06-17	25MPa (250kgf/cm²)	2~150L/min	Plate Mounting	31kg	Flow Control: Rated Current 720mA, Coil Resistance 41Ω; Relief Function: Adjustment Range 1.4~14MPa (Type C)/1.4~21MPa (Type H), Rated Current 740mA (Type C)/690mA (Type H), Coil Resistance 10Ω, suitable for medium-flow hydraulic systems.
EFBG-10-17	25MPa (250kgf/cm²)	5~300L/min	Plate Mounting	56kg	Flow Control: Rated Current 750mA, Coil Resistance 40Ω; Relief Function: Adjustment Range 1.4~14MPa (Type C)/1.4~21MPa (Type H), Rated Current 750mA (Type C)/700mA (Type H), Coil Resistance 10Ω, suitable for large-flow hydraulic systems requiring overload protection.

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. The relief function can quickly release excess pressure when the system pressure exceeds the set value, avoiding equipment damage caused by overload.

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EFBG-03/06/10-17 Flow Control and Relief Valves

I. Model Parameter Interpretation

II. Core Technical Parameters (by Specification)