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  • Explosion-Proof Proportional Pilot Operated Pressure Reducing Valve
  • Explosion-Proof Proportional Pilot Operated Pressure Reducing Valve
  • PRODUCT DETAILS
  • FAQ
Specific Applications

·Hydraulic control systems in petrochemical plants
·Offshore and marine hydraulic equipment
·Mining machinery in hazardous environments
·Industrial automation hydraulic systems
·Heavy-duty hydraulic power units
·Process equipment requiring stable reduced pressure

Core Functions

Stable Secondary Pressure Control
The valve reduces the inlet pressure to a controlled outlet pressure, helping hydraulic actuators operate under stable pressure conditions and reducing pressure fluctuations.

Proportional Pressure Adjustment
The proportional control function allows the pressure reduction value to be adjusted according to electrical input signals, providing more flexible control compared with manually adjusted pressure reducing valves.

Pilot-Operated Design for Industrial Systems
The pilot-operated structure improves pressure regulation stability and is suitable for hydraulic circuits requiring continuous operation and reliable pressure control.

Explosion-Proof Electrical Operation
The valve uses a DC 24 V power supply with a rated current of 750 mA and an IP55 protection rating, making it suitable for industrial environments where electrical protection is required.

Hydraulic Fluid Compatibility
Designed for use with mineral hydraulic oil and phosphate ester hydraulic fluid, the valve can be integrated into various industrial hydraulic applications.

Technical Specifications
Specifications 03  06  10 
Maximum Operating Pressure(MPa) Oilports A, B, X 31.5 
Oilports Y 0 MPa return to oil tank
Working pressure(Mpa) 7, 16, 25, 31.5
Max.Flow(L/min) 80  200  300 
Working Fluid   Mineral oil phosphate-ester
Fluid temp. (℃) -20~70
Viscosity(mm²/s) 15~380
Hysteresis (%) <3
Repeatability (%) <2
Linearity(%) <3.5
Working Voltage(V) DC 24
Rated Current(mA) 750 
Coil Resistance (Ω) 19.5 
Insulating grade IP 55

odndrfdv1787211230

Specification Mounting Screws Amount Tightening Torque
GDBY-03 M10×50-12.9 75 Nm
GDBY-06 M10×60-12.9 75 Nm
GDBY-10 M10×70-12.9 75 Nm

Specification L1 L2 L3 L4 L5 L6 L7 L8 L9 L10 L11 L12 L13
GDBYJ-03 96  35.5  42.9  21.5  - 7.2  21.5  31.8  35.8  23  98  166.5 
GDBYJ-06 116  37.5  60.3  39.7  - 11.1  20.6  44.5  49.2  24  118  186.5 
GDBYJ-10 145  33  84.2  59.5  42.1  16.7  24.6  62.7  67.5  25  147  215.5 

 Specification B1 B2 B3 B4 B5 B6 H1 H2 H3 D D1 D2 D3
GDBYJ-03 85  50  66.7  58.5  7.9  87  112  92  28  12  M10
GDBYJ-06 102  59.5  79.4  73  6.4  104  122  102  38  25  M10
GDBYJ-10 120  76  96.8  92.8  3.8  149  130  110  46  32  M10

OEM / ODM Customization

We provide customized solutions for hydraulic equipment manufacturers and industrial system suppliers, including:

·Pressure adjustment range customization
·Electrical coil and connector options
·Mounting interface modifications
·Product labeling and packaging services
·Technical support based on hydraulic circuit requirements

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 Proportional Pilot Operated Pressure Reducing Valve used for?
An Explosion-Proof Proportional Pilot Operated Pressure Reducing Valve is used to reduce and control hydraulic pressure through proportional electrical signals in industrial systems requiring stable pressure regulation and explosion-proof operation.

2. What is the difference between this valve and a standard pressure reducing valve?
A standard pressure reducing valve usually requires manual adjustment, while this proportional pilot-operated design allows pressure adjustment through electrical control signals for more flexible system operation.

3. What are the standard electrical specifications?
The standard configuration operates at DC 24 V with a 750 mA rated current and an IP55 protection rating.

4. Which hydraulic fluids are compatible with this valve?
The valve is suitable for mineral hydraulic oil and phosphate ester hydraulic fluid used in industrial hydraulic systems.

5. Can the Explosion-Proof Proportional Pilot Operated Pressure Reducing Valve be customized?
Yes. The Explosion-Proof Proportional Pilot Operated Pressure Reducing Valve can be customized according to pressure requirements, electrical specifications, mounting conditions, and hydraulic system applications.

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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