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  • Low Noise Two-Stage Solenoid Relief Valve
  • Low Noise Two-Stage Solenoid Relief Valve
  • PRODUCT DETAILS
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Specific Applications

·Hydraulic power units (HPUs)
·Injection molding machines
·Hydraulic presses
·Machine tools
·Industrial automation equipment
·Construction machinery
·Hydraulic manifold systems
·General hydraulic control circuits

Core Functions

Low Noise Hydraulic Operation
The Low Noise Two-Stage Solenoid Relief Valve is designed to minimize hydraulic operating noise while providing reliable pressure relief and protecting pumps, pipelines, and other hydraulic components.

Two-Stage Pressure Switching
The integrated solenoid allows the valve to switch between two preset pressure levels, improving hydraulic system flexibility and supporting automated pressure management.

Stable Pressure Regulation
The pilot-operated design helps maintain stable system pressure, reducing pressure fluctuations during continuous operation and improving overall system reliability.

High Pressure and Flow Capacity
Available in SBSG-03, SBSG-06, and SBSG-10 models, the Low Noise Two-Stage Solenoid Relief Valve provides a maximum operating pressure of 250 bar and a maximum flow rate of 100 L/min (26.42 gpm) based on Model SBSG-03.

Easy System Integration
The compact structure supports installation in a wide range of hydraulic systems, making the valve suitable for both new equipment and replacement applications.

Technical Specifications
Model Number Maximum Pressure(bar) Minimum adjustment pressure Maximum Flow Rate
(Ipm)
Weight
(kg)
SBSG-03 250(3571 psi) Please refer to the minimum adjustment pressure characteristics. 100(26.42gpm)
SBSG-06 200(52.84gpm) 6.4 
SBSG-10 400(105.67gpm) 7.8 

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Accessories
SBSG-03 HEX COUNTER-SINK SCREW M12×40L
SBSG-06 HEX COUNTER-SINK SCREW M16×50L
SBSG-10 HEX COUNTER-SINK SCREW M20×60L

Model A B C D E F
 SBSG-03 76(2.99") 53.8(2.12") 11.1(0.44") 26.9(1.06") 53.8(2.12") 171(6.73")
 SBSG-06 104(4.09") 70(2.76") 17(0.67") 35(1.38") 66.7(2.63") 171(6.73")
 SBSG-10 120(4.72") 82.6(3.25") 18.7(0.74") 41.3(1.63") 88.9(3.50") 188(7.40")

Model G H J K L M
 SBSG-03 13.5(0.53") 21 (0.83") 51(2.0") 128(5.04") 102(4.02") 22(0.87")
 SBSG-06 17.5(0.69") 25(0.98") 51(2.0") 130(5.12") 1054.13") 27(1.06")
 SBSG-10 21.5(0.85") 32(1.26") 66(2.56") 127(5.0")  135(5.31") 33.5(1.32")

OEM / ODM Customization

We provide OEM and ODM services for low noise two-stage solenoid relief valves to meet different hydraulic system requirements.

·Pressure setting customization
·Solenoid voltage customization
·Two-stage pressure configuration
·Mounting interface customization
·Seal material selection
·Logo marking and packaging customization
·Hydraulic application support

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 a Low Noise Two-Stage Solenoid Relief Valve used for?
A Low Noise Two-Stage Solenoid Relief Valve is used to protect hydraulic systems from overpressure while providing low-noise operation and electrically controlled two-stage pressure switching.

2. What are the advantages of two-stage pressure control?
Two-stage pressure control allows the hydraulic system to switch between two preset pressure levels, improving operational flexibility and supporting automated equipment.

3. What are the pressure and flow capabilities?
Based on Model SBSG-03, the valve provides a maximum operating pressure of 250 bar and a maximum flow rate of 100 L/min (26.42 gpm).

4. Which models are available?
Representative models include SBSG-03, SBSG-06, and SBSG-10, suitable for different hydraulic system sizes and pressure requirements.

5. How can I choose the right Low Noise Two-Stage Solenoid Relief Valve?
Selection should be based on the required operating pressure, flow capacity, two-stage pressure requirements, solenoid voltage, and hydraulic system configuration. The appropriate Low Noise Two-Stage Solenoid Relief Valve model should be selected according to the actual application.

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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