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Rotatable Tapped-Blank (Blind) 316LN SS Standard ConFlat® (CF) UHV Flanges

Rotatable Tapped-Blank (Blind) 316LN SS Standard ConFlat® (CF) UHV Flanges

Rotatable Tapped-Blank (Blind) 316LN SS Standard ConFlat® (CF) UHV Flanges are engineered to provide exceptional performance in ultra-high vacuum (UHV) environments, where maintaining a clean, leak-tight, and reliable system is crucial. These flanges offer both flexibility and reliability for a wide range of applications, making them a key component in various vacuum systems, including those in semiconductor manufacturing, scientific research, and materials processing.

Key Features

  • Material: Made from 316LN stainless steel, which offers superior resistance to corrosion, high-temperature stability, and low levels of outgassing. This material ensures longevity and durability even in the most demanding vacuum applications.

  • ConFlat® Design: The ConFlat® (CF) design uses a metal-to-metal seal that is renowned for its exceptional vacuum integrity. This ensures a robust seal with minimal risk of leakage, which is essential for ultra-high vacuum environments.

  • Rotatable Feature: The rotatable design allows for easy alignment of the flange, providing flexibility in connecting vacuum systems. This makes the flange ideal for systems where precise orientation and easy adjustments are required.

  • Tapped-Blank (Blind): The flange is configured with tapped holes for mounting screws, but it features a blank, or “blind,” center. This feature is especially useful when sealing off a port or preparing a vacuum chamber for future modifications. It prevents contaminants from entering the system, maintaining vacuum integrity while leaving the port closed.

  • Standard ConFlat® (CF) Dimensions: These flanges conform to the ConFlat® flange standard, ensuring compatibility with a wide variety of vacuum components, such as pumps, valves, and other fittings, across different industries.

Applications

  • Vacuum Sealing: Ideal for sealing off unused ports on vacuum chambers, creating a secure, reliable seal that prevents contamination and maintains vacuum integrity.

  • Semiconductor Manufacturing: Used in UHV systems for thin-film deposition, sputtering, and etching processes, where a stable, clean vacuum environment is critical.

  • Scientific Research: Essential for applications in particle accelerators, electron microscopy, and materials science, where maintaining high vacuum levels is crucial for accurate results.

  • Material Testing: Employed in testing environments for aerospace, automotive, and chemical industries, where vacuum conditions must be maintained for various types of material testing and processing.

  • Custom UHV Systems: Perfect for custom vacuum systems, providing a flexible option to seal or close off vacuum ports as needed for system maintenance, modification, or storage.

Why Choose TFM’s Rotatable Tapped-Blank (Blind) 316LN SS Standard ConFlat® (CF) UHV Flanges?

  • High-Performance Material: Crafted from 316LN stainless steel, which offers excellent corrosion resistance and durability, ideal for UHV and high-temperature applications.

  • Leak-tight and Reliable: The ConFlat® seal ensures a leak-tight connection that is critical for maintaining ultra-high vacuum levels over long periods of use.

  • Flexibility and Ease of Use: The rotatable feature allows for quick and easy adjustments during installation, providing flexibility when integrating into custom vacuum systems.

  • Clean and Contaminant-Free: The blind center prevents contaminants from entering the system, ensuring that the vacuum environment remains clean and uncontaminated.

  • Versatile and Customizable: Available in various sizes and configurations to meet specific vacuum system needs. Custom sizes and features can be accommodated based on the requirements of unique applications.

Manufacturing Process

  • Cold Pressed and Sintered: Flanges are manufactured using a cold-pressing process, followed by sintering to ensure high density and uniformity. This process maximizes performance and longevity.

  • Elastomer Bonding: After manufacturing, the flange is elastomer-bonded to the backing plate, enhancing durability and providing reliable sealing under high-vacuum conditions.

  • Cleaning and Packaging: The flanges are thoroughly cleaned to remove any residual contaminants and are packaged to protect them from environmental damage during shipping, ensuring they are ready for use in vacuum applications.

Ordering Table

Flange Size/OD Type Note Part Number
DN16CF (1.33" OD) Rotatable Tapped F0133N000RMLN
DN16CF (1.33" OD) Rotatable Tapped F0133N000RTLN
DN35CF-DN40CF (2.75" OD) Rotatable Tapped F0275N000RMLN
DN50CF (3.38" OD) Rotatable Tapped F0337N000RMLN
DN63CF (4.50" OD) Rotatable Tapped F0450N000RMLN
DN63CF (4.50" OD) Rotatable Tapped F0450N000RTLN
DN75CF (4.63" OD) Rotatable Tapped F0462N000RMLN
DN100CF (6.00" OD) Rotatable Tapped F0600N000RMLN
DN100CF (6.00" OD) Rotatable Tapped F0600N000RTLN
DN125CF (6.75" OD) Rotatable Tapped F0675N000RMLN
DN160CF (8.00" OD) Rotatable Tapped F0800N000RMLN
DN160CF (8.00" OD) Rotatable Tapped F0800N000RTLN
DN200CF (10.00" OD) Rotatable Tapped F1000N000RMLN
DN200CF (10.00" OD) Rotatable Tapped F1000N000RTLN
DN250CF (12.00" OD) Rotatable Tapped F1200N000RMLN
DN250CF (12.00" OD) Rotatable Tapped F1200N000RTLN
DN275CF (13.25" OD) Rotatable Tapped F1325N000RMLN
DN275CF (13.25" OD) Rotatable Tapped F1325N000RTLN
DN295CF (14.00" OD) Rotatable Tapped F1400N000RMLN

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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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