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  • Dual Pilot Operated Check Valve
  • Dual Pilot Operated Check Valve
  • Dual Pilot Operated Check Valve
  • Dual Pilot Operated Check Valve

Dual Pilot Operated Check Valve

Dual Pilot Operated Check Valve are tubular-mounted hydraulic valves designed to provide bidirectional load holding and controlled hydraulic flow release. Each check valve allows free flow in one direction while blocking reverse flow until pilot pressure is applied. The tubular connection design enables easy installation in hydraulic pipelines, making these valves suitable for hydraulic cylinders, lifting equipment, and load holding circuits requiring secure bidirectional control.

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Specific Applications

·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 pipeline installations

Core Functions

Bidirectional Load Holding
The Dual Pilot Operated Check Valve incorporate two pilot-operated check valves in one assembly, allowing secure load holding in both hydraulic lines while preventing unintended actuator movement.

High Pressure Performance
Designed for demanding hydraulic applications, the valve supports a maximum operating pressure of 250 bar, making it suitable for lifting, clamping, and cylinder locking systems.

Low Internal Leakage
The poppet sealing structure limits internal leakage to a maximum of 3 drops per minute at 250 bar, helping maintain hydraulic pressure and improve load holding reliability.

Balanced Pilot Control
The dual pilot-operated check valve features a pilot ratio of 2.5:1, providing stable pilot release characteristics for smooth and controlled bidirectional operation.

Reliable Operation in Various Environments
The tubular connection hydraulic valve operates within a temperature range of -30°C to +120°C. Hydraulic oil filtration of 20 μm or better is recommended to help maintain sealing performance and extend service life.

The performance data above are based on Model DPC-08.

Technical Specifications

Parameter

Specification

Product Name

Dual Pilot Operated Check Valve

Valve Type

Dual Pilot-Operated Hydraulic Check Valve

Representative Models

DPC-08, DPC-10

Maximum Operating Pressure

250 bar*

Flow Capacity

See Pressure Drop vs. Flow Curve

Internal Leakage

Max. 3 drops/min at 250 bar*

Pilot Ratio

2.5:1*

Operating Temperature

-30°C to +120°C*

Recommended Oil Filtration

20 μm or better*

Cavity

08-4

*Performance data are based on Model DPC-08. Specifications may vary depending on the selected model.

 


XDC-08

Function Choice Part Number Cavity Flow(Ipm) Pressure(bar) Page
kpyjnqzg1787049473 DPC-08 08-4 18  350  B-21
DPC-10 10-4 30  350  B-22
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 are dual pilot-operated check valves used for?
Dual Pilot Operated Check Valve are used to provide bidirectional load holding for hydraulic cylinders and actuators. They prevent unintended movement while allowing controlled release through pilot pressure.

2. Which models are available?
Representative models include DPC-08 and DPC-10. The appropriate model depends on the hydraulic system's flow, pressure, and connection requirements.

3. Are all models supplied with the same technical specifications?
No. The technical data shown on this page are based on Model DPC-08. Pressure ratings, flow characteristics, pilot ratio, and other specifications may vary depending on the selected model.

4. What pilot ratio does this valve use?
The representative model DPC-08 features a pilot ratio of 2.5:1, providing stable pilot release performance for bidirectional hydraulic load control.

5. How can I choose the right pilot-operated check valves?
Model selection depends on operating pressure, flow rate, connection type, pilot ratio, installation method, and hydraulic circuit design. Our engineering team can recommend the appropriate Dual Pilot-Operated Check Valves Tubular Connection Bidirectional Control model based on your application requirements.

products
Though compact in size, hydraulic valves deliver critical functions as indispensable core components enabling multi-functional and automatic operation of mechanical equipment.
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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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