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  • Subplate Mounted Relief Valve
  • Subplate Mounted Relief Valve
  • Subplate Mounted Relief Valve
  • Subplate Mounted Relief Valve
  • Subplate Mounted Relief Valve
  • Subplate Mounted Relief Valve
  • Subplate Mounted Relief Valve
  • Subplate Mounted Relief Valve
  • Subplate Mounted Relief Valve
  • Subplate Mounted Relief Valve
  • Subplate Mounted Relief Valve
  • Subplate Mounted Relief Valve
  • Subplate Mounted Relief Valve
  • Subplate Mounted Relief Valve
  • Subplate Mounted Relief Valve
  • Subplate Mounted Relief Valve
  • PRODUCT DETAILS
  • FAQ
Specific Applications

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

Core Functions

Reliable Pressure Protection
The Subplate Relief Valve automatically opens when system pressure reaches the preset value, protecting hydraulic components from excessive pressure and improving system safety.

High Pressure Capacity
Based on Model DB-10, the valve supports a maximum operating pressure of 315 bar, making it suitable for medium- and high-pressure hydraulic systems.

Large Flow Handling
The Subplate Relief Valve provides a maximum flow capacity of 250 L/min (66.05 gpm) (Based on Model DB-10), allowing efficient pressure relief in high-flow hydraulic circuits.

Standard Subplate Installation
The subplate mounting design simplifies installation and maintenance while ensuring compatibility with common hydraulic manifold systems.

Stable Long-Term Operation
The valve is designed for consistent pressure regulation, helping maintain stable hydraulic performance and extending the service life of system components.

Technical Specifications
Model Number Maximum Pressure(bar) Minimum adjustment pressure Maximum Flow Rate
(Ipm)
Weight
(kg)
DB-10 315(4500 psi) Please refer to the minimum adjustment pressure characteristics. 250(66.05gpm) 3.8 
DB-20 500(132.09gpm) 5.2 
DB-30 650(171.72gpm) 7.2 


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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
·Subplate interface customization
·Port configuration customization
·Seal material selection
·Surface treatment options
·Logo marking and packaging customization
·Hydraulic system 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 subplate relief valve used for?
A subplate relief valve is used to protect hydraulic systems by automatically releasing excess pressure when the preset pressure is reached.

2. What models are available for this series?
Representative models include DB-10, DB-20, and DB-30, covering different hydraulic system capacities.

3. What are the pressure and flow capabilities of this valve?
Based on Model DB-10, the valve provides a maximum operating pressure of 315 bar and a maximum flow capacity of 250 L/min (66.05 gpm).

4. What are the advantages of subplate mounting?
Subplate mounting allows easier installation, convenient maintenance, standardized connections, and simple integration into hydraulic manifold systems.

5. How can I choose the right Subplate Relief Valve model?
Selection should be based on the required operating pressure, flow capacity, mounting standard, and hydraulic circuit design. The appropriate Subplate Relief Valve model should be selected according to the actual application requirements.

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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