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  • NRV2-10 Direct-Acting Cartridge Relief Valve
  • NRV2-10 Direct-Acting Cartridge Relief Valve
  • PRODUCT DETAILS
  • FAQ
Specific Applications

The NRV2-10 Direct-Acting Cartridge Relief Valve is used in:

· Hydraulic power units (HPUs)
· Low-flow hydraulic circuits
· Hydraulic manifold blocks
· Industrial hydraulic equipment
· Construction and agricultural machinery
· Machine tools
· Hydraulic pressure protection circuits
· Auxiliary hydraulic systems

Core Functions

· Hydraulic Pressure Protection

Opens when system pressure reaches the set pressure, helping limit excessive pressure and protect hydraulic components from overload.

· High-Pressure Operation

Supports a maximum operating pressure of 350 bar for hydraulic pressure protection applications.

· Low Internal Leakage

The poppet sealing structure provides internal leakage below 30 ml/min, supporting pressure control in low-flow hydraulic circuits.

· Temperature and Oil Filtration Requirements

Operates within a temperature range of -30°C to 120°C. Hydraulic oil filtration of 20 μm or better is recommended.

· Threaded Cartridge Installation

The cartridge design allows installation in compatible hydraulic manifolds and supports maintenance and replacement.

Technical Specifications
Max. Operating Pressure 350bar
Flow See PRESSURE DROP VS.FLOW
Internal Leakage <30ml/min
Temperature Range -30℃ to 120℃
Filtration Of Oil 20μm or better
Cavity 10S-2

101XNRV2-102

OEM / ODM Customization

We provide OEM and ODM services for hydraulic cartridge relief valves to meet different hydraulic system requirements.

· Pressure setting customization
· Thread and cavity customization
· Seal material options for different hydraulic fluids
· Custom logo and laser marking
· Packaging customization
· Hydraulic manifold 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 NRV2-10 Direct-Acting Cartridge Relief Valve used for?

It limits hydraulic system pressure by opening when pressure reaches the set level, helping protect pumps, actuators, and other hydraulic components from overpressure.

2. What is the maximum operating pressure?

The specified maximum operating pressure is 350 bar. The pressure setting should be selected according to the hydraulic system requirements.

3. What is the internal leakage specification?

The specified internal leakage is below 30 ml/min.

4. What are the operating temperature and oil filtration requirements?

The specified temperature range is -30°C to 120°C, and the recommended oil filtration is 20 μm or better.

5. How do I select a suitable Direct-Acting Cartridge Relief Valve?

Consider the required pressure setting, operating pressure, flow characteristics, cavity size, hydraulic fluid, and system design. Confirm model specifications and 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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