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DN295CF (14.00″ OD) 316LN SS Standard ConFlat® (CF) UHV Flanges

DN295CF (14.00 OD) 316LN SS Standard ConFlat® (CF) UHV Flanges

DN295CF (14.00 OD) 316LN SS Standard ConFlat® (CF) UHV Flanges are designed for use in ultra-high vacuum (UHV) systems that require precise and reliable sealing. Made from 316LN stainless steel, these flanges are engineered to provide excellent corrosion resistance, mechanical strength, and low outgassing properties, making them ideal for demanding vacuum environments such as semiconductor manufacturing, research, and high-precision applications.

Key Features

  • Material: Crafted from 316LN stainless steel, which offers exceptional resistance to corrosion, oxidation, and high temperatures, making it the ideal material for UHV applications.

  • ConFlat® Seal: Equipped with ConFlat® (CF) metal-to-metal seals, these flanges offer a reliable, leak-tight connection crucial for maintaining the integrity of high- and ultra-high vacuum systems.

  • DN295CF Standard Size: The DN295CF flange has a 14.00-inch outer diameter (OD), making it suitable for larger systems requiring high-volume connections while maintaining the vacuum integrity.

  • High Purity: The 316LN stainless steel ensures low outgassing, preventing contamination of the vacuum environment and maintaining high purity, which is essential in semiconductor and research processes.

  • Compatibility: Designed to be fully compatible with other ConFlat® (CF) components, ensuring seamless integration into existing UHV systems and applications.

  • Durability: The 316LN stainless steel construction enhances the durability and long-term reliability of these flanges, ensuring they withstand the demands of high-vacuum conditions without compromising performance.

Applications

  • Ultra-High Vacuum Systems: Used to connect large vacuum chambers and maintain UHV conditions in semiconductor fabrication, research, and material processing systems.

  • Semiconductor Manufacturing: These flanges are ideal for high-precision processes where maintaining a clean, stable vacuum environment is crucial for producing quality electronic components.

  • Research & Development: In laboratory settings where UHV is required for experiments, these flanges ensure optimal sealing performance while minimizing contamination risks.

  • Thin Film Deposition: Widely used in thin-film deposition processes where maintaining a precise vacuum is necessary for the creation of high-quality thin films for electronics, optics, and coatings.

  • High-Precision Instruments: Essential in scientific instruments that require precise vacuum conditions, such as electron microscopes, X-ray diffraction equipment, and spectrometers.

Why Choose TFM’s DN295CF (14.00 OD) 316LN SS Standard ConFlat® (CF) UHV Flanges?

  • High-Quality Material: Made from 316LN stainless steel, offering corrosion resistance and strength, suitable for use in demanding UHV environments.

  • Leak-tight Seal: The ConFlat® metal-to-metal seal ensures a tight, secure connection that prevents leaks and maintains the integrity of the vacuum.

  • Large Diameter: The 14.00-inch outer diameter (OD) size is ideal for systems requiring larger connections, making these flanges versatile for a wide range of UHV applications.

  • Low Outgassing: The material’s low outgassing properties make it suitable for high-precision applications where contamination could compromise results.

  • Customizable: Available in a range of sizes and configurations to meet specific needs, with custom sizes available upon request.

  • Durability & Reliability: Designed to withstand harsh conditions, ensuring long-term, reliable performance in high-vacuum systems.

Manufacturing Process

  • Cold Pressing and Sintering: The flanges are manufactured using cold pressing and sintering techniques to achieve uniform density and strength.

  • Elastomer Bonding: Bonded to a backing plate using elastomer technology for added durability and stability, especially in demanding UHV conditions.

  • Cleaning: Each flange is thoroughly cleaned to remove contaminants, ensuring a contamination-free environment when used in vacuum applications.

  • Packaging: After cleaning, the flanges are carefully packaged to protect them from damage and contamination during transport, ensuring they arrive in perfect condition.

Ordering Table

Flange Size/OD Type Note Part Number
Fixed — — F1400N000NLN
Fixed Tapped — — F1400N000NMLN
Rotatable Tapped — — F1400N000RMLN
Fixed Tapped — — F1400N000TLN
Fixed Fixed F1400N1200NLN
Fixed Tapped — — F1400N1200TLN

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FAQ

Tube fittings are designed for tubes (measured by outside diameter and wall thickness) used in high-pressure and instrumentation applications, whereas pipe fittings are for pipes (identified by nominal pipe size) primarily used in fluid transport.

 

Common valve types include ball valves, gate valves, check valves, butterfly valves, and globe valves. Each serves a specific function—from quick shutoff (ball/gate valves) to flow regulation (globe valves).

 

  • For tubing, measure the outside diameter; for pipes, refer to the nominal pipe size (using conversion charts if needed). Always match the valve or fitting size to your pipe’s dimensions and flow requirements.

  • Frequently used thread types include NPT (National Pipe Tapered), BSP (British Standard Pipe), and UNC, along with slip-fit options that rely on compression or fusion rather than threads.

Interchangeability depends on manufacturer specifications and certification. Always verify compatibility via manufacturer guides or certified interchangeability charts.

 

  • A coupling is a short, straight fitting used to join two pipes or tubes. It provides a secure, leak-tight connection and can sometimes serve to extend or repair piping runs.

Consider valve type, pressure and temperature ratings, material compatibility with your fluid, actuation method (manual or automatic), and maintenance requirements.

 

  • Valves regulate flow by opening, closing, or partially obstructing the pathway. Their mechanisms (such as the rotation of a ball or the linear movement of a gate) determine the speed and precision of flow control.

  • A flange is a flat, circular component used to connect pipes, valves, or other equipment. Bolted together with gaskets, flanges provide a secure, leak-proof joint that facilitates both assembly and maintenance.

  • Manual valves require physical operation via handles or levers, whereas actuated valves use mechanisms—pneumatic, electric, or hydraulic—to open and close automatically or remotely.

  • Issues include leaks caused by improper installation, over-tightening, degraded seals, material incompatibility, and fatigue from repeated cycling. Regular inspection and proper installation practices help mitigate these problems.

Regular maintenance involves periodic inspections, cleaning or replacing worn seals, ensuring proper torque during installation, and adhering to manufacturer guidelines and local plumbing codes to preserve system integrity.

 

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