• Low Noise Relief Valve
  • Low Noise Relief Valve
  • Low Noise Relief Valve
  • Low Noise Relief Valve
  • PRODUCT DETAILS
  • FAQ
Specific Applications

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

Core Functions

Low Noise Hydraulic Operation
The Low Noise Relief Valve is specially designed to reduce operating noise to below 60 dB, helping create a quieter hydraulic working environment while protecting pumps and control valves from overpressure.

Stable Pressure Control
The valve maintains stable system pressure and provides reliable overpressure protection, improving the operating stability of hydraulic circuits.

Remote Pressure and Unloading Control
Through an external remote control circuit, the Low Noise Relief Valve supports remote pressure adjustment and unloading control, making it suitable for automated hydraulic systems.

Improved Pressure Performance
Compared with conventional relief valves, this design offers improved flow-to-unloading pressure characteristics and minimum pressure adjustment performance, providing smoother hydraulic operation.

High Pressure Capacity
Available in SBG-03, SBG-06, and SBG-10 models, the valve supports various hydraulic systems. Based on Model SBG-03, it provides a maximum operating pressure of 250 bar, a maximum flow rate of 100 L/min (26.42 gpm), and a weight of 4.1 kg.

Technical Specifications
Model Number Maximum Pressure(bar) Minimum adjustment pressure Maximum Flow Rate
(Ipm)
Weight
(kg)
SBG-03 250(3571 psi) Please refer to the minimum adjustment pressure characteristics. 100(26.42gpm) 4.1 
SBG-06 200(52.84gpm) 5.4 
SBG-10 400(105.67gpm) 6.8 

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OEM / ODM Customization

We provide OEM and ODM services for hydraulic relief valves to meet different application requirements.

·Pressure setting customization
·Solenoid voltage customization (if applicable)
·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 relief valve used for?
A Low Noise Relief Valve is used to protect hydraulic systems from overpressure while maintaining stable pressure and reducing operating noise.

2. Does this valve support remote pressure control?
Yes. It supports remote pressure adjustment and unloading control through an external remote control circuit, making it suitable for automated hydraulic systems.

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

4. What are the advantages of this valve compared with a standard relief valve?
The Low Noise Relief Valve offers operating noise below 60 dB, improved unloading pressure characteristics, better minimum pressure adjustment performance, and more stable pressure regulation.

5. How can I choose the right Low Noise Relief Valve model?
Selection should be based on the required operating pressure, flow rate, mounting standard, remote control requirements, and hydraulic system design. The appropriate Low Noise 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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