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

·Hydraulic positioning systems in petrochemical plants
·Explosion-proof automation equipment
·Offshore drilling and production platforms
·Mining hydraulic machinery
·Process control equipment in chemical plants
·Heavy-duty hydraulic systems requiring proportional control

Core Functions

Proportional Directional Control
The valve adjusts spool position according to the electrical input signal, providing continuous directional control and smoother actuator movement than conventional switching valves.

Improved Motion Accuracy
Proportional control helps reduce hydraulic shock during starting and stopping, making it suitable for equipment requiring stable speed and position control.

Explosion-Proof Electrical Design
Designed for hazardous industrial environments, the valve combines proportional hydraulic control with explosion-proof electrical operation to improve workplace safety.

Industrial Electrical Protection
The valve operates on DC 24 V and features an IP55 protection rating, helping protect electrical components from dust and water spray in industrial applications.

Hydraulic Fluid Compatibility
Compatible with mineral hydraulic oil and phosphate ester hydraulic fluid, allowing integration into a wide range of industrial hydraulic systems.

Technical Specifications
Specifications 02  03 
Maximum Operating Pressure(MPa) Oilports P, A, B 31.5 
Oilports T 10 
Working Fluid Mineral oil phosphate-ester
Fluid temp. (℃) -20~70
Viscosity(mm²/s) 2.8~380
Hysteresis (%) <5
Repeatability (%) <2
Operating Voltage (M) DC 24
Rated Current (mA) 750  1500 
Coil Resistance (Ω) 19.5  10 
Protection Rating IP 55

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Fixing screw
Specification Quantity Tightening Torque
M5×45-12.9 9Nm

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Fixing screw
Specification Quantity Tightening Torque
M6×50-12.9 15Nm

OEM / ODM Customization

We support OEM and ODM projects for hydraulic equipment manufacturers and industrial system suppliers, including:

·Proportional control configuration
·Electrical connector and cable options
·Mounting interface customization
·Private label and custom packaging
·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 Directional Control Valve used for?
An Explosion-Proof Proportional Directional Control Valve is used to provide continuous directional control of hydraulic actuators in hazardous environments where explosion-proof electrical protection is required.

2. How is this valve different from a standard directional control valve?
Unlike an on/off directional valve, a proportional valve adjusts spool position continuously according to the input signal, allowing smoother speed and motion control.

3. What power supply does this valve require?
The standard operating voltage is DC 24 V. Other electrical specifications can be discussed according to project requirements.

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

5. Can the valve be customized for different hydraulic control systems?
Yes. We provide OEM and ODM services, including proportional control configuration, electrical connection options, mounting interfaces, and customized branding for the Explosion Proportional Directional Control Valve.

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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