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DN125CF (6.75″ OD) 316LN SS Standard ConFlat® (CF) UHV Flanges

DN125CF (6.75 OD) 316LN SS Standard ConFlat® (CF) UHV Flanges

Overview:

The DN125CF (6.75 OD) 316LN SS Standard ConFlat® (CF) UHV Flanges are precision-engineered for ultra-high vacuum (UHV) applications, providing robust performance in critical environments. Made from 316LN stainless steel, these flanges offer superior strength, excellent corrosion resistance, and reliable sealing. They are essential components in vacuum systems where maintaining stable UHV conditions is crucial, such as in semiconductor manufacturing, scientific research, and industrial applications.

Product Features:

  • Material: Constructed from high-quality 316LN stainless steel, ensuring excellent corrosion resistance and high mechanical strength, making them ideal for UHV applications.

  • Outer Diameter (OD): 6.75 inches

  • Flange Type: Standard ConFlat® (CF) flange, known for its precise, leak-proof sealing capability in UHV environments.

  • Vacuum Rating: Designed to perform reliably under ultra-high vacuum conditions, supporting systems with very low pressures.

  • Sealing Compatibility: Compatible with copper or metal seals to create a secure and hermetically sealed connection.

  • Finish: Precision-machined surfaces for smooth and clean finishes, reducing outgassing and improving long-term performance in UHV systems.

  • Configuration Options: Available in both rotatable and fixed versions for greater flexibility in installation and alignment.

Applications:

  • Semiconductor Industry: Used in UHV chambers for thin film deposition, etching, and other semiconductor processes, where precise and reliable vacuum conditions are critical.

  • Scientific Research: Ideal for use in research facilities requiring UHV environments for experiments and vacuum-based studies.

  • Aerospace: Used in aerospace and space-related applications, such as vacuum systems for satellite construction and testing.

  • Vacuum Furnaces and Coating Systems: Suitable for applications where stable UHV conditions are necessary for manufacturing or coating processes.

  • Industrial Vacuum Systems: Essential for vacuum systems in industries such as metallurgy, electronics, and optics that require high-performance, leak-free sealing.

Advantages:

  • High-Quality Construction: 316LN stainless steel provides enhanced corrosion resistance and durability, ensuring the flanges perform well even in challenging UHV conditions.

  • Leak-Free Sealing: The precision machining and high-quality sealing materials (copper or metal) guarantee tight, leak-free connections, even in the most demanding environments.

  • Versatility: Available in both rotatable and fixed configurations, these flanges are suitable for a wide range of vacuum systems and configurations.

  • Long-Term Reliability: Designed to maintain consistent performance over long periods, ensuring reliable operation in UHV conditions.

  • Wide Application Range: Ideal for industries ranging from semiconductor manufacturing to scientific research, offering flexibility in various UHV applications.

Manufacturing Process:

These DN125CF flanges are cold-pressed, sintered, and elastomer-bonded to maintain high-density, uniform structure. They are rigorously cleaned and packaged to ensure that they meet the strictest vacuum requirements upon delivery. TFM ensures that the flanges are ready for use in high-demand UHV environments.

Ordering Table

Flange Size/OD Type Flange Material Part Number
Fixed 316LN SS 316LN SS F0675N000NLN
Fixed Tapped 316LN SS 316LN SS F0675N000NMLN
Rotatable Tapped 316LN SS 316LN SS F0675N000RMLN

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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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