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  • Explosion-Proof Solenoid Relief Valve
  • Explosion-Proof Solenoid Relief Valve
  • PRODUCT DETAILS
  • FAQ
Specific Applications

·Oil and gas production equipment
·Petrochemical plants
·Chemical processing systems
·Mining and tunneling machinery
·Offshore hydraulic equipment
·Hydraulic power units installed in hazardous locations

Core Functions

Explosion-Proof Pressure Control
The valve combines hydraulic pressure relief with an explosion-proof solenoid, making it suitable for hydraulic systems operating in hazardous environments.

Reliable System Pressure Protection
The relief function helps prevent excessive hydraulic pressure, protecting pumps, valves, cylinders, and other hydraulic components from overload.

Electrical Unloading Control
The solenoid allows remote electrical unloading through the hydraulic control system, helping improve system efficiency and simplify automated operation.

Industrial Hydraulic Compatibility
The valve is designed for use with mineral hydraulic oil and phosphate ester hydraulic fluid, making it suitable for a wide range of industrial hydraulic applications.

Protected Electrical Design
The valve features an IP55 protection rating, helping protect electrical components against dust ingress and water spray in industrial environments.

Technical Specifications
Specifications 03  06  10 
Maximum Operating Pressure(MPa) Oilports PX 35 
Oilports T(External leakage 30 
Oilports T (Internal leakage) 10 
Max.Flow(L/min) 250  500  650 
Working Fluid Mineral oil phosphate-ester
Fluid temp. (℃) -20~70
Viscosity(mm²/s) 15~380
Working pressure(Mpa) 510       20 31.5     35
Worhing voltage(V) DC 24 
※AC 110, 220
Insulating grade IP55

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Specification Mounting Screws Tightening Torque
GDYW-03 M12×45-12.9 130Nm
GDYW-06 M16×50-12.9 310Nm
GDYW-10 M18×50-12.9 430Nm

Specification B1 B2 L1 L2 L3 L4 L5 L6 L7 L8
GDYW-03 80  54  98.5  91.5  67  54  23.5  149.3  22.1 
GDYW-06 100  69.8  122.2  117.5  83.7  66.7  26.5  161.8  23.8  11.1 
GDYW-10 115  82.6  154.5  149.5  106.9  88.9  28.1  172.5  31.8 

12.7 

Specification L9 L10 L11 L12 L13 L14 D D1 D2 D3
GDYW-03 47.5  14  207  22.1  20  12  M12
GDYW-06 55.6  11  219.5  33.3  25  25  M16
GDYW-10 76.2  9.4  230.2  44.4  30  32  M18

OEM / ODM Customization

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

·Explosion-proof coil voltage customization
·Pressure setting range customization
·Hydraulic connection and mounting options
·Private labeling and customized packaging
·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 Explosion-Proof Solenoid Relief Valve used for?
An Explosion Solenoid Relief Valve is used to protect hydraulic systems from excessive pressure while providing explosion-proof electrical unloading control in hazardous environments.

2. Which working media are compatible with this valve?
The valve is suitable for mineral hydraulic oil and phosphate ester hydraulic fluid commonly used in industrial hydraulic systems.

3. What is the protection rating of this valve?
The valve has an IP55 protection rating, helping protect electrical components from dust and water spray in industrial applications.

4. Can this valve be customized for different hydraulic systems?
Yes. OEM and ODM services are available, including explosion-proof electrical configurations, pressure settings, mounting options, voltage specifications, and customized labeling and packaging.

5. How can I select the right Explosion Solenoid Relief Valve?
Provide your hydraulic system parameters, including operating pressure, hydraulic fluid type, explosion-proof classification, voltage, and installation requirements. Our technical team can recommend the most suitable Explosion Solenoid Relief 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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