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  • FR-12-33 Regulator Pressure-Compensated Flow Control Valve
  • FR-12-33 Regulator Pressure-Compensated Flow Control Valve
  • PRODUCT DETAILS
  • FAQ
Specific Applications

The FR-12-33 Regulator Pressure-Compensated Flow Control Valve is suitable for the following applications:

· Hydraulic power units (HPUs)
· Hydraulic manifold blocks
· Mobile hydraulic equipment
· Construction and agricultural machinery
· Industrial hydraulic systems
· Hydraulic circuits requiring priority flow and bypass control

Core Functions

· Pressure-Compensated Flow Regulation

The FR-12-33 Regulator Pressure-Compensated Flow Control Valve regulates hydraulic oil flow to support controlled flow distribution in hydraulic circuits.

· Priority and Bypass Flow Control

The valve supports different regulated flow ranges through Port 3, depending on whether bypass flow is available or blocked.

· Defined Inlet Flow Capacity

The valve has a nominal inlet flow of 76 L/min and a maximum inlet flow of 114 L/min for the priority and bypass configuration.

· Operating Conditions and Leakage

The valve supports a maximum operating pressure of 250 bar and an operating temperature range of -30°C to +120°C. Internal leakage is specified at 100 cc/min at 207 bar. Hydraulic oil filtration of 20 μm or finer is required.

Technical Specifications
Max. Operating Pressure 250 bar
Rated Flow Port 3 regulated flow (Priority + Bypass): 0–68 lpm
Port 3 regulated flow (Bypass closed): 0–45 lpm
Inlet Flow (Priority + Bypass): Nominal 76 lpm; Max 114 lpm
Internal Leakage 100 cc/min at 207 bar
Temperature Range -30℃ to 120℃
Filtration Of Oil 20μm or better
Cavity 12-3

138XFR-12-332

OEM / ODM Customization

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

· Thread and cavity customization
· Flow adjustment range 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 model of this pressure-compensated flow control valve?

The model is FR-12-33, with a 12-3 cavity specification.

2. What is the maximum operating pressure?

The maximum operating pressure is 250 bar.

3. What is the regulated flow range through Port 3?

The regulated flow range is 0–68 L/min with priority and bypass flow, or 0–45 L/min when the bypass is blocked.

4. What are the nominal and maximum inlet flow rates?

For the priority and bypass configuration, the nominal inlet flow is 76 L/min and the maximum inlet flow is 114 L/min.

5. What is the specified internal leakage?

Internal leakage is specified at 100 cc/min at 207 bar.

6. What oil filtration level is required?

Hydraulic oil filtration of 20 μm or finer is specified.

7. How can I confirm compatibility with my hydraulic system?

Please provide your port configuration, required flow rate, operating pressure, hydraulic circuit details, and cavity specification to evaluate whether the FR-12-33 Regulator Pressure-Compensated Flow Control Valve is suitable for your application.

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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