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  • Subplate Solenoid Unloading Relief Valve
  • Subplate Solenoid Unloading Relief Valve
  • PRODUCT DETAILS
  • FAQ
Specific Applications

·Hydraulic power units (HPUs)
·Hydraulic presses
·Injection molding machines
·Machine tools
·Industrial automation systems
·Construction machinery
·Hydraulic manifold assemblies
·Hydraulic circulation systems

Core Functions

Solenoid-Controlled Unloading
The Subplate Solenoid Unloading Relief Valve uses solenoid control to achieve remote unloading operation, allowing hydraulic systems to reduce unnecessary pump load during standby conditions.

Reliable Pressure Protection
The valve provides stable pressure relief to protect pumps, pipelines, and hydraulic components from excessive system pressure.

Stable Hydraulic Operation
The Subplate Solenoid Unloading Relief Valve helps maintain consistent pressure performance during continuous operation, improving hydraulic system reliability.

High Pressure and Flow Capacity
Available in DAW-10, DAW-20, and DAW-30 models, the valve supports a maximum operating pressure of 315 bar and a maximum flow rate of 100 L/min (26.42 gpm) based on Model DAW-10.

Easy Subplate Installation
The subplate-mounted design simplifies installation, maintenance, and replacement, making it suitable for various industrial hydraulic systems.

Technical Specifications
Model Number Maximum Pressure(bar) Minimum adjustment pressure Maximum Flow Rate
(Ipm)
Weight
(kg)
DAVV-10 315(4500 psi) Please refer to the minimum adjustment pressure characteristics. 100(26.42gpm) 5.8 
DAW-20 200(52.84gpm) 7.0 
DAW-30 400(105.67gpm) 7.8 

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Model A B C D E F G H
DAW-10 91(3.58") 78(3.07") 135(5.31") 26(1.02") 183(7.20") 14(0.55") 40(1.57") 132(5.20")
DAW-20 116(4.57") 100(3.94") 144(5.67") 26(1.02") 183(7.20") 18(0.71") 52(2.05") 167(6.57")
DAW-30 148(5.83") 115(4.53") 154(6.06") 26(1.02") 183(7.20") 20(0.79") 67(2.64") 198(7.80")

OEM / ODM Customization

We provide OEM and ODM services for solenoid unloading relief valves to meet different hydraulic system requirements.

·Pressure setting customization
·Solenoid voltage customization
·Mounting interface customization
·Seal material selection
·Logo marking and packaging customization
·Hydraulic circuit 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 Solenoid Unloading Relief Valve used for?
A Subplate Solenoid Unloading Relief Valve is used to protect hydraulic systems from overpressure and provide electrically controlled pump unloading for improved system efficiency.

2. What is the advantage of solenoid control?
Solenoid control enables remote unloading operation, allowing the hydraulic system to be integrated with automatic control systems.

3. What are the pressure and flow capabilities?
Based on Model DAW-10, the valve provides a maximum operating pressure of 315 bar and a maximum flow rate of 100 L/min (26.42 gpm).

4. Which models are available?
Representative models include DAW-10, DAW-20, and DAW-30, suitable for different hydraulic system flow and installation requirements.

5. How can I select the right Subplate Solenoid Unloading Relief Valve?
Selection should consider operating pressure, flow rate, solenoid requirements, mounting size, and hydraulic circuit design. The correct Subplate Solenoid Unloading Relief Valve model should be selected according to the actual application conditions.

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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