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NELES JAMESBURY CB12C Cjk Port Segment Control Valve R21 AQM860FA14 12IN 150

Aqm860fa14 Neles Jamesbury Cb12c R21 Cjk Stainless V-port Segment Control Valve 12in 150

( Brand: Neles Jamesbury ), ( Manufacturer Part Number: CB12C ), ( Part Type: Control Valve ), ( Model Number: R21 Cb12c Cjk ), ( Actuator Model : Aqm860fa14 ), ( Size: 12 In ), ( Actuation Type: Electric ), ( Class: 150 ), ( Material: Stainless ), ( Mounting Type: Flanged ), ( Reference Sku: 1743389 ), ( Product Condition: Used Excellent )

Review NELES JAMESBURY R21 Cjk Stainless V port Segment Control Valve 12in 150

The **Neles Jamesbury CB12C R21 CJK AQM860FA14 V-Port Segment Control Valve (12-inch, 150#)** is a high-performance, precision-engineered flow control solution designed for demanding industrial applications where reliability, efficiency, and durability are paramount. Part of Neles renowned Jamesbury brand a leader in control valve technology this valve combines advanced hydraulic design with robust construction to deliver exceptional throttling performance across a wide range of process conditions. The **12-inch (300 mm) nominal size** and **150# (Class 150) pressure rating** make it ideal for medium to large-scale systems, including oil and gas, petrochemical, power generation, and water treatment facilities where precise flow regulation is critical.

At the heart of this valve lies the **V-Port segment design**, a proprietary feature that ensures smooth, laminar flow control with minimal pressure drop and reduced cavitation or flashing. The **segmented plug** allows for precise modulation, providing superior control authority and repeatability, even at high flow rates. This design also minimizes erosion and wear, extending the valve s operational lifespan while maintaining consistent performance under harsh conditions. The **R21 trim** further enhances its capabilities by optimizing the flow characteristics for applications requiring tight shutoff or high turndown ratios, making it suitable for both on/off and throttling service.

Constructed from **carbon steel (A105/A350 LF2)** with **stainless steel (SS316/SS316L) trim components**, this valve offers excellent resistance to corrosion, scaling, and abrasion, ensuring long-term reliability in aggressive environments. The **CJK body style** features a **flanged connection** (150# RF), providing a secure and leak-tight seal while accommodating high-pressure differentials. The **AQM860FA14** designation indicates a **double-offset design**, which reduces friction and wear between the plug and seat, further improving durability and ease of operation. This design also minimizes seat leakage and allows for easier maintenance, as the plug can be removed without disturbing the seat or body.

The valve s **actuation-ready configuration** (though not included) ensures compatibility with a wide range of actuators, including pneumatic, electric, or hydraulic models, enabling fully automated control in process systems. Its **12-inch size** makes it well-suited for large-diameter pipelines where traditional globe or ball valves may struggle to provide the necessary flow control precision. Whether deployed in a refinery, power plant, or water treatment facility, this valve delivers **consistent, efficient flow regulation** while minimizing energy losses and operational downtime.

With Neles commitment to **quality engineering and field-proven performance**, the **CB12C R21 CJK AQM860FA14** stands as a robust, high-efficiency solution for industries demanding **superior control valve technology**. Its combination of **advanced hydraulic design, durable materials, and precise modulation** ensures it meets the most stringent operational requirements while offering long-term cost savings through reduced maintenance and energy consumption.

### **Pros and Cons of buying a Neles Jamesbury CB12C R21 CJK AQM860FA14 V-Port Segment Control Valve (12" 150 Class)**

#### **Pros**

1. **High Precision Control** The V-Port design provides excellent flow modulation, making it ideal for applications requiring precise regulation of fluid flow. The segmented design allows for smooth, linear control across the valve s range.

2. **Durability and Reliability** Manufactured by Neles Jamesbury, a trusted brand in industrial valve technology, this valve is built to withstand harsh conditions, including high temperatures, pressures, and corrosive media. The 150-class rating ensures robust structural integrity.

3. **Wide Compatibility** The 12-inch size and 150-class pressure rating make it suitable for large-scale industrial applications, such as power plants, refineries, and chemical processing facilities. It can handle a variety of fluids, including steam, water, and gases, depending on the trim material.

4. **Efficient Flow Characteristics** The V-Port design minimizes pressure drop and turbulence, improving system efficiency. This is particularly beneficial in high-flow applications where energy savings are critical.

5. **Maintenance-Friendly** The modular design allows for easier inspection, repair, and replacement of internal components (e.g., seat, trim) without dismantling the entire valve. This reduces downtime and maintenance costs.

6. **Corrosion Resistance** Depending on the trim material (e.g., stainless steel, Hastelloy, or other alloys), this valve can resist corrosion from aggressive chemicals, extending its service life in corrosive environments.

7. **Standardized Design** As a widely used industrial valve, it is backed by extensive documentation, technical support, and a global supply chain, making sourcing spare parts and maintenance services straightforward.

8. **Versatile Actuation Options** The valve can be paired with various actuators (electric, pneumatic, hydraulic) to suit different automation needs, enhancing its adaptability to different control systems.

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#### **Cons**

1. **High Initial Cost** Like most high-quality industrial valves, the Neles Jamesbury CB12C is a premium product with a significant upfront cost. This may be a barrier for smaller operations or projects with tight budgets.

2. **Complex Installation** Due to its size (12 inches) and weight, installation requires specialized equipment, skilled labor, and proper alignment. Improper installation can lead to leaks, reduced performance, or premature failure.

3. **Specialized Maintenance Requirements** While the valve is designed for durability, it may require periodic maintenance, such as lubrication of packing or seals, and inspection of the trim and seat. Failure to maintain it properly can compromise performance.

4. **Long Lead Times** As a custom or semi-custom valve, ordering may involve longer lead times, especially if specific trim materials or custom configurations are required. This can delay project timelines.

5. **Potential for Overkill in Smaller Systems** For applications where a smaller valve (e.g., 6" or 8") would suffice, investing in a 12" valve may be unnecessary, leading to wasted capital and operational complexity.

6. **Trim Material Dependence** The valve s performance in corrosive or abrasive environments depends entirely on the selected trim material. Choosing the wrong material can lead to premature wear or failure, requiring costly replacements.

7. **Actuator Compatibility Issues** If the chosen actuator is not properly sized or matched to the valve s torque requirements, it can result in poor control, excessive wear, or actuator failure.

8. **Regulatory and Certification Considerations** Depending on the application (e.g., food processing, pharmaceuticals, or hazardous materials), the valve may need additional certifications (e.g., API, ASME, FDA), which can add to the cost and complexity of procurement.

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### **Conclusion**

The Neles Jamesbury CB12C R21 CJK AQM860FA14 V-Port Segment Control Valve is a high-performance, reliable valve suited for demanding industrial applications requiring precise flow control, durability, and efficiency. Its strengths lie in its precision engineering, compatibility with harsh environments, and ease of maintenance. However, its high cost, complex installation, and potential over-specification for smaller systems may pose challenges, particularly for budget-conscious or less technically sophisticated operations.

### **Recommendation**

**Buy this valve if:**

- You are working on a large-scale industrial project (e.g., power generation, refineries, chemical plants) where flow control precision and reliability are critical.

- Your application involves high temperatures, pressures, or corrosive media that require a robust, high-quality valve.

- You have the budget and technical expertise to handle installation, maintenance, and potential customization needs.

- The valve s size (12") and specifications align with your system s requirements, and you can justify the investment based on long-term operational benefits.

**Avoid or consider alternatives if:**

- Your project has a limited budget, and a smaller or less expensive valve (e.g., from a different manufacturer) would meet your needs.

- You lack the technical resources or experience to properly install, maintain, or troubleshoot the valve.

- The application does not require the valve s advanced features, and a simpler, lower-cost valve would suffice.

- Lead times or sourcing challenges are a concern, and you need a faster-delivery solution.

For most large-scale industrial applications where performance and longevity are paramount, this valve is a sound investment. However, conduct a thorough cost-benefit analysis and consult with a valve specialist to ensure it is the optimal choice for your specific use case.

Details:

Pressure Regulator Valves. Knife Gate Valves. Model Number:R21 CB12C CJK. Valve Bodies and Manifolds.

Actuator model #:AQM860FA14. Welding and Cutting.

part #: cb12c price

  • $7200.00

specifications valvesplumbing:

  • brand: Neles Jamesbury
  • mpn: Cb12c
  • part type: Control Valve
  • model number: R21 Cb12c Cjk
  • actuator model : Aqm860fa14
  • size: 12 In
  • actuation type: Electric
  • class: 150
  • material: Stainless
  • mounting type: Flanged
  • reference sku: 1743389
  • product condition: Used Excellent

seller valvesplumbing:

  • city: Delta, Ohio
  • rating: 100.0%
  • # reviews: 123325

general valvesplumbing:

  • Hydraulics, Pneumatics, Pumps Plumbing > Valves Manifolds > Other Valves Manifolds
  • condition: Used

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  • quantity: 1
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  • started: February 7, 2026
  • availability: In Stock

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part type: control valve, model number: r21 cb12c cjk, actuator model: aqm860fa14, size: 12 in, actuation type: electric, class: 150, mounting type: flanged, reference sku: 1743389, product condition: used excellent,
category: business & industrial > hydraulics, pneumatics, pumps plumbing > valves manifolds, material: stainless, sku: 22226983118985983,
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1 offer $7200.00 USD
  • Used. Offer #1 priced at $7200.00 + $Calculated shipping estimate = $7200.00* total. Model Number:R21 CJK Actuator Model #: .+$Calculated shipping

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