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  • Explosion-Proof Proportional Cartridge Flow Control Valve
  • Explosion-Proof Proportional Cartridge Flow Control Valve
  • PRODUCT DETAILS
  • FAQ
Specific Applications

·Compact hydraulic manifolds and power units
·Petrochemical process equipment
·Mining machinery with explosion-proof requirements
·Offshore hydraulic control systems
·Industrial automation equipment
·Hydraulic systems requiring adjustable actuator speed

Core Functions

Precise Flow Adjustment
The valve controls hydraulic flow according to the electrical input signal, allowing continuous adjustment of actuator speed compared with fixed flow control components.

Cartridge Installation for Compact Systems
The cartridge design enables direct mounting into hydraulic blocks, reducing external piping and helping optimize the overall hydraulic system layout.

Stable Actuator Speed Control
By regulating flow output smoothly, the valve helps improve the movement stability of hydraulic cylinders and motors, especially in applications requiring controlled motion.

Explosion-Proof Electrical Operation
The valve is configured with DC 24 V operating voltage, 750 mA rated current, and IP55 protection rating, supporting reliable operation in industrial environments with electrical protection requirements.

Compatibility with Industrial Hydraulic Fluids
The valve is suitable for mineral hydraulic oil and phosphate ester hydraulic fluid, making it adaptable to different hydraulic system requirements.

Technical Specifications
DN 25  32  40  50 
Maximum Operating Pressure(MPa) Oilports A,B,X 31.5 
Oilports Y 0 Mpa retum to oil tank
Working pressure(Mpa) 16  25  31.5 
Max.Flow(L/min) 325  500  700  1000 
Working Fluid Mineral oil phosphate-ester
Fluid temp. (℃) -20~70
Viscosity(mm²/s) 15~380
Hysteresis (%) <5
Repeatability (%) <2
Linearity(%) <3.5
Working Voltage(V) DC 24
Rated Current(mA) 750 
Coil Resistance (Ω) 19.5 
Insulating grade IP 55

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Model A B C
GDBCY-25 85  50  199 
GDBCY-32 102  50  207 
GDBCY-40 125  60  219 
GDBCY-50 140  68  227 

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DN A B C D E F G L M N P R S
GDBCY-25 13  29  58  62  58  29  85  M12 30 
GDBCY-32 18  35  70  76  70  35  102  M16 38 
GDBCY-40 7.5  19.5  42.5  85  92.5  85  42.5  125  M20 10  46 
GDBCY-50 20  50  100  108  100  50  140  M20 10  46 

DN d1 d2 d3 d4 L1 L2 L3 L4 L5 L6 L7 U W
GDBCY-25 45  34  25  27  58  72  70  42  30  2.5  2.5  0.03  0.05 
GDBCY-32 60  45  32  38.5  70  85  83  48.5  30  2.5  2.5  0.03  0.1 
GDBCY-40 75  55  40  54.5  87  105  102  58  30  0.05  0.1 
GDBCY-50 90  68  50  62.5  100  122  117  66  35  0.05  0.1 

OEM / ODM Customization

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

·Cartridge interface customization
·Flow adjustment range configuration
·Electrical coil and connector options
·Hydraulic manifold integration support
·Product labeling and customized packaging

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 Cartridge Flow Control Valve used for?
An Explosion-Proof Proportional Cartridge Flow Control Valve is used to adjust hydraulic flow electronically and control actuator speed in industrial hydraulic systems requiring compact installation and explosion-proof operation.

2. What is the advantage of a cartridge flow control design?
The cartridge structure allows direct installation into hydraulic blocks, helping reduce piping connections and saving space in compact hydraulic systems.

3. How does proportional flow control work?
The valve changes flow output according to the electrical input signal, allowing smoother adjustment compared with traditional fixed flow control valves.

4. What are the standard electrical specifications?
The standard configuration uses DC 24 V power supply with a 750 mA rated current and an IP55 protection rating.

5. Can the Explosion-Proof Proportional Cartridge Flow Control Valve be customized?
Yes. The Explosion-Proof Proportional Cartridge Flow Control Valve can be customized according to flow requirements, manifold design, electrical specifications, and specific hydraulic 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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