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Annealed OFHC Copper Gaskets for ConFlat (CF) UHV Flanges

OFHC Copper Gaskets for ConFlat (CF) UHV Flanges

OFHC Copper Gaskets for ConFlat (CF) UHV Flanges

OFHC Copper Gaskets for ConFlat (CF) UHV Flanges, provided by TFM, are designed to offer reliable, high-performance sealing solutions in ultra-high vacuum (UHV) systems. These gaskets are crafted from oxygen-free high conductivity (OFHC) copper, providing exceptional thermal conductivity and minimal outgassing, making them ideal for UHV environments in scientific research, semiconductor processing, and other vacuum-dependent applications.

Key Features

  • High-Purity OFHC Copper Material
    These gaskets are made from oxygen-free high conductivity copper with a purity of over 99.99%, ensuring minimal outgassing and superior thermal conductivity for demanding UHV applications.

  • Metal-to-Metal Seal
    Designed to form a leak-tight seal with ConFlat (CF) flanges, these gaskets deliver reliable performance even in vacuum chambers with pressures down to 10⁻¹¹ Torr.

  • Excellent Thermal Conductivity
    OFHC copper’s high thermal conductivity ensures efficient heat dissipation in systems with temperature variations, making these gaskets ideal for high-heat and cryogenic applications.

  • Durable and Long-Lasting
    OFHC copper’s malleability allows the gasket to conform to flange knife edges, ensuring a tight and reliable seal. The material’s durability also ensures long-lasting performance under varying temperatures.

  • Versatile for Various Applications
    These gaskets are suitable for a wide range of applications, from UHV systems to high-temperature and cryogenic conditions, ensuring reliable sealing across different sectors.

Applications

  • UHV Research and Scientific Equipment
    Used extensively in research laboratories for applications such as electron microscopy, spectroscopy, and surface science, where clean and stable vacuum conditions are essential.

  • Semiconductor Manufacturing
    Ideal for high-purity vacuum systems in the semiconductor industry, these gaskets help maintain the integrity of vacuum chambers during thin film deposition, sputtering, and other processes.

  • Cryogenic Systems
    Suitable for use in cryogenic applications, these gaskets can withstand low-temperature environments while providing excellent sealing and thermal conductivity.

  • Vacuum Chambers and Process Equipment
    Essential in vacuum chambers, these gaskets maintain stable and reliable seals in systems used for industrial processes, gas handling, and high-tech applications.

Technical Specifications

  • Material: Oxygen-Free High Conductivity (OFHC) Copper (annealed)

  • Purity: Copper >99.99%

  • Vacuum Rating: Down to 10⁻¹¹ Torr

  • Temperature Tolerance: Up to 450°C

  • Flange Compatibility: ConFlat (CF) UHV flanges

  • Surface Finish: Smooth, burr-free edges for optimal sealing

  • Usage: Single-use gaskets to ensure maximum sealing integrity

Benefits of OFHC Copper Gaskets

  • High-Performance Sealing: These gaskets form a strong, reliable seal, making them ideal for UHV applications that require a leak-tight connection.

  • Superior Thermal Management: Excellent heat conductivity reduces the risk of temperature fluctuations affecting system performance.

  • Minimal Outgassing: The high purity of the copper ensures low levels of outgassing, essential for maintaining the vacuum integrity in sensitive applications.

  • Durability in Harsh Conditions: Withstand high temperatures and pressure changes, providing long-lasting sealing performance in demanding environments.

Why Choose TFM?

TFM’s OFHC Copper Gaskets for ConFlat (CF) UHV Flanges are crafted to meet the highest standards of quality and performance. Trusted by researchers, engineers, and industries relying on vacuum systems, these gaskets provide the integrity and reliability needed for the most demanding applications.

Ordering Table

Drawing Flange OD Gasket ID Part Number
Tooltip DN16CF (1.33" OD) 0.640 GA-0133
Tooltip DN16CF (1.33" OD) Blank GA-0133S
Tooltip DN25CF (2.125" OD) 1.010 GA-0212
Tooltip DN25CF (2.125" OD) Blank GA-0212S
Tooltip DN35CF-DN40CF (2.75" OD) 1.450 GA-0275
Tooltip DN35CF-DN40CF (2.75" OD) 1.528 GA-0275LB
Tooltip DN35CF-DN40CF (2.75" OD) Blank GA-0275S
Tooltip DN50CF (3.375" OD) 2.010 GA-0337
Tooltip DN50CF (3.375" OD) Blank GA-0337S
Tooltip DN63CF (4.50" OD) 2.506 GA-0450
Tooltip DN63CF (4.50" OD) 2.800 GA-0450LB
Tooltip DN63CF (4.50" OD) Blank GA-0450S
Tooltip DN75CF (4.625" OD) 3.010 GA-0462
Tooltip DN75CF (4.625" OD) Blank GA-0462S
Tooltip DN100CF (6.00" OD) 4.006 GA-0600
Tooltip DN100CF (6.00" OD) Blank GA-0600S
Tooltip DN125CF (6.75" OD) 5.010 GA-0675
Tooltip DN125CF (6.75" OD) Blank GA-0675S
Tooltip DN160CF (8.00" OD) 6.007 GA-0800
Tooltip DN160CF (8.00" OD) Blank GA-0800S
Tooltip DN200CF (10.00" OD) 8.007 GA-1000
Tooltip DN250CF (12.00" OD) 10.007 GA-1200
Tooltip DN250CF (12.00" OD) Blank GA-1200S
Tooltip DN275CF (13.25" OD) 10.792 GA-1325
Tooltip DN295CF (14.00" OD) 11.811 GA-1400
Tooltip DN305CF (14.50" OD) 12.104 GA-1450
Tooltip DN350CF (16.50" OD) 14.037 GA-1650

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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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