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  • DC-08 Dual Pilot Operated Check Valve
  • DC-08 Dual Pilot Operated Check Valve
  • PRODUCT DETAILS
  • FAQ
Specific Applications

The DC-08 Dual Pilot Operated Check Valve is suitable for:

· Hydraulic cylinder load-holding systems
· Hydraulic lifting equipment
· Mobile hydraulic machinery
· Construction and mining equipment
· Agricultural machinery
· Hydraulic power units (HPUs)
· Industrial hydraulic control systems
· Hydraulic locking circuits

Core Functions

· Bidirectional Load Holding: Helps hold hydraulic loads in both directions and prevents unintended actuator movement.

· Pressure Performance: Supports a maximum operating pressure of 250 bar.

· Internal Leakage Control: The specified maximum internal leakage is 3 drops per minute; confirm the test pressure before publication.

· Pilot Ratio: Features a pilot ratio of 2.5:1 for pilot-controlled release.

· Operating Temperature: Specified for a temperature range of -30°C to 120°C.

· Oil Filtration: Requires oil filtration of 20 μm or better.

Technical Specifications
Max. Operating Pressure 250bar
Flow See PRESSURE DROP VS.FLOW
Internal Leakage 3drops/min. Max at 210Bar
Pilot Ratio 2.5:1
Temperature -30℃ to120℃
Filtration Of Oil 20μm or better
Cavity 08-4

89XDC-082

OEM / ODM Customization

We provide OEM and ODM services for dual pilot-operated hydraulic check valves to meet different hydraulic system requirements.

· Tubular connection customization
· Pilot ratio selection
· Seal material options for different hydraulic fluids
·Product marking and private labeling
· Customized packaging
· Hydraulic circuit integration support
· Technical assistance for model selection and equivalent replacement

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 the DC-08 Dual Pilot Operated Check Valve used for?

It provides bidirectional load holding for hydraulic cylinders and actuators, helping prevent unintended movement until pilot pressure allows release.

2. What is the maximum operating pressure?

The maximum operating pressure is 250 bar.

3. What is the pilot ratio of this model?

The DC-08 has a pilot ratio of 2.5:1.

4. What oil filtration level is required?

Oil filtration of 20 μm or better is specified.

5. Which cavity is compatible with this valve?

The specified cavity is 08-4. Confirm cavity dimensions and manifold compatibility before installation.

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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