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  • Electro-Hydraulic Proportional Pressure & Flow Control Valve
  • Electro-Hydraulic Proportional Pressure & Flow Control Valve
  • PRODUCT DETAILS
  • FAQ
Specific Applications

·Hydraulic power units and hydraulic stations
·CNC machines and machining equipment
·Industrial automation systems
·Injection molding and forming machinery
·Energy-saving hydraulic systems requiring variable control

Core Functions

Proportional Pressure and Flow Control
The valve uses input current signals to proportionally adjust hydraulic pressure and flow, enabling stepless control for different operating conditions.

Energy-Saving Hydraulic Operation
The valve provides the minimum working pressure and energy required by hydraulic components, helping reduce energy consumption and system operating costs.

Temperature Compensation Design
The integrated temperature compensation function helps reduce the influence of oil temperature changes and improves pressure and flow stability during operation.

Electro-Hydraulic Integrated Control
When combined with a power amplifier, the valve converts electrical signals into hydraulic control output, supporting automated hydraulic system applications.

Wide Flow Adjustment Range
The EFBG-03-125 model supports a maximum working pressure of 24.5 MPa, a maximum flow rate of 125 L/min, and a flow adjustment range of 1.0–125 L/min.

Technical Specifications
Model EFBG-03-125 EFBG-06-250 EFBG-10-500
Maximum Operating Pressure (MPa) 24.5  24.5  24.5 
Maximum Flow Rate (L/min) 125  250  500 
Flow Rate Adjustment Range (L/min) 1.0-125 2.5-250 5.0-500
Traffic Control Rated Current (mA) 680  580  700 
Coil Resistance (Ω) 43.5  43.5  43.5 
Pressure (MPa) 0.6  0.7  0.9 
Hysteresis <7% <7% <7%
Repeatability 1% 1% 1%
Pressure Control Pressure Adjustment Range (MPa) C:1.4~14 H:1.4~21 C:1.5~14 H:1.5~21 C:1.6~14 H:1.6~21
Rated Current (mA) C:710 H:770 C:690 H:730 C:690 H:690
Coil Resistance (Ω) 10  10  10 
Hysteresis <3% <3% <3%
Repeatability 1% 1% 1%
Weight(kg) 16  30  60 

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OEM / ODM Customization

We provide OEM and ODM services for hydraulic equipment manufacturers, distributors, and system integrators, including:

·Customized pressure and flow control requirements
·Electrical input and amplifier compatibility adjustment
·Valve configuration optimization according to hydraulic system design
·Product labeling and packaging support
·Production based on customer drawings or technical specifications

Purchasing Information

Item

Details

MOQ

Standard cartridge valves: 100 pcs/model; Custom manifold blocks: 30 pcs minimum. Small trial orders are accepted.

Lead Time

Stock valves: 2 weeks; Regular orders: 6–8 weeks; Custom products: about 8 weeks after drawing approval and deposit.

Payment Terms

30% T/T deposit, 70% balance before shipment. Sample orders require full payment. L/C is negotiable for long-term customers.

Trade Terms

FOB Ningbo by default. CIF quotations are available upon request.

Sample Policy

Stock samples are available. OEM/ODM samples can be produced based on drawings or samples.

OEM / ODM

Logo engraving, customized packaging, and product customization are supported.

Quality Assurance

Every valve is pressure-tested before shipment and covered by a 12-month warranty.

FAQ

1. What is an Electro-Hydraulic Proportional Pressure & Flow Control Valve used for?
An Electro-Hydraulic Proportional Pressure & Flow Control Valve is used to continuously control hydraulic pressure and flow through electrical signals, helping improve system efficiency and control accuracy.

2. What are the advantages of proportional pressure and flow control technology?
The proportional design enables stepless adjustment, energy-saving operation, reduced noise, and more flexible hydraulic system control compared with fixed control valves.

3. Does this valve require a power amplifier?
Yes. The valve is designed to work with a power amplifier to achieve electro-hydraulic proportional control and convert electrical input signals into hydraulic output.

4. What factors should be considered when selecting this valve?
Important factors include working pressure, required flow range, control signal, hydraulic circuit design, oil temperature conditions, and equipment application requirements.

5. How can I select the right Electro-Hydraulic Proportional Pressure & Flow Control Valve?
Provide your hydraulic system parameters, including pressure requirements, flow range, control method, and application conditions. Our technical team can help recommend a suitable valve model and configuration.

Ningbo Stars Hydraulic Co., Ltd.

Founded in 2001, Ningbo Stars Hydraulic Co., Ltd. is a hydraulic valve manufacturer that upholds integrity and wins market recognition through superior quality and pragmatic craftsmanship. We introduced hydraulic valve technologies from Germany’s Rexroth and Japan’s Yuken series, and through years of dedicated research, digestion, absorption, modification and optimization, our products stand out in the market. Our valves sell well nationwide and are exported to overseas markets, earning praise and trust from numerous customers at home and abroad. Though compact in size, hydraulic valves deliver critical functions as indispensable core components enabling multi-functional and automatic operation of mechanical equipment. The quality of a hydraulic valve largely determines the overall operating performance of the entire machinery. Supported by national industrial policies, China’s machinery industry is striving to catch up with European and American counterparts to meet booming demands from agriculture, industry, construction, transportation, and land, sea and air defense sectors—this momentum has greatly boosted the domestic hydraulic industry. To embrace the new wave of machinery upgrading, our company has launched a new round of optimization and improvement for our valve products. Building on our existing valve manufacturing technologies and processes, and under the guidance of domestic and international industry experts as well as Taiwanese technical engineers, we have comprehensively upgraded product structures, internal workshop purification and precision of core components. We have implemented effective control over internal stress, thermal deformation, leakage and noise of valves. Every batch of raw materials, auxiliary parts, semi-finished and finished products undergoes rigorous item-by-item inspection. We have also strengthened full-process quality supervision, with zero tolerance for defective products leaving the factory, guaranteeing reliable and long-lasting product performance. Our after-sales service includes timely technical guidance and warranty support, plus follow-up tracking of product operating conditions throughout their service life. Product competition is essentially a contest of technology, workforce dedication, team competence and corporate management. More importantly, it hinges on the founder’s philosophy, integrity and service mindset. There is no end to pursuing premium quality. Committed to specialization, refinement, quality excellence and technological innovation, our company adheres to the manufacturing principle of “Better fewer than shoddy goods” and the service tenet of “Put ourselves in customers’ shoes”. Standing at a new developmental milestone, all staff at Stars sincerely seek cooperation with clients worldwide. We aim to build mutual trust and shared prosperity, and jointly create a brighter future for the hydraulic industry.

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