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Silver-Plated OFHC Copper Gaskets for ConFlat (CF) UHV Flanges

Silver-Plated OFHC Copper Gaskets for ConFlat (CF) UHV Flanges

Silver-Plated OFHC Copper Gaskets for ConFlat (CF) UHV Flanges

Silver-Plated OFHC Copper Gaskets for ConFlat (CF) UHV Flanges, manufactured by TFM, are engineered to provide high-performance sealing solutions in ultra-high vacuum (UHV) systems. These gaskets offer superior conductivity, corrosion resistance, and long-lasting vacuum sealing capabilities, making them ideal for demanding environments, such as UHV research, semiconductor processing, and cryogenics.

Key Features

  • High-Purity OFHC Copper Core
    Constructed from oxygen-free high-conductivity copper (OFHC), these gaskets are guaranteed to have over 99.99% purity, ensuring minimal outgassing and excellent thermal conductivity for reliable performance in UHV applications.

  • Silver Plating for Enhanced Conductivity and Corrosion Resistance
    The silver plating provides superior electrical conductivity and protection against oxidation and corrosion, which is especially valuable in applications involving reactive gases and extreme vacuum conditions.

  • Reliable UHV Sealing
    Designed to form a tight metal-to-metal seal with ConFlat (CF) flange knife edges, these gaskets ensure leak-tight performance in vacuum chambers with pressures down to 10⁻¹¹ Torr.

  • Excellent for High-Temperature and Cryogenic Applications
    These gaskets maintain integrity and functionality even during high-temperature bake-outs or in cryogenic environments, making them versatile for a wide range of applications.

  • Cost-Effective Solution
    Silver plating offers a cost-effective balance of performance and durability compared to other precious metals, providing reliable sealing without the high cost of gold.

Applications

  • UHV Research and Scientific Instruments
    Ideal for UHV applications in research laboratories, including spectroscopy, electron microscopy, and surface science, where a clean, reliable seal is essential.

  • Semiconductor Manufacturing
    Perfect for use in semiconductor processing systems such as sputtering, ALD, and PVD, where high-purity vacuum conditions are critical for the production of advanced materials and devices.

  • Cryogenic and Superconducting Systems
    These gaskets are suitable for cryogenic applications, such as low-temperature physics experiments and superconducting systems, due to their excellent sealing capabilities and durability in extreme temperatures.

  • Gas Handling and Process Systems
    Used in industrial applications that require high-vacuum conditions, including those handling reactive or corrosive gases, ensuring long-term sealing without degradation.

Technical Specifications

  • Material: OFHC Copper (annealed)

  • Plating: Silver (electroplated)

  • 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 for optimal sealing

  • Usage: Single-use for maximum sealing integrity

Benefits of Silver-Plated OFHC Copper Gaskets

  • Enhanced Conductivity: The silver plating increases the thermal and electrical conductivity of the gasket, improving heat dissipation and performance in vacuum applications.

  • Corrosion Resistance: The silver coating protects the copper from oxidation and other corrosive effects, extending the lifespan of the gasket.

  • Superior Vacuum Sealing: Offers leak-tight sealing in UHV systems with excellent compression characteristics.

  • Durable in Harsh Environments: The gaskets are suitable for high-temperature bake-outs and extreme vacuum conditions, ensuring consistent performance over time.

  • Cost-Effective: While offering enhanced performance, silver-plated gaskets are more affordable than their gold-plated counterparts.

Why Choose TFM?

TFM’s Silver-Plated OFHC Copper Gaskets for ConFlat (CF) UHV Flanges are precision-manufactured for ultimate vacuum integrity and durability. These gaskets are an essential component for ensuring clean, reliable seals in high-performance vacuum systems, making them a trusted choice for UHV research, semiconductor manufacturing, and cryogenic systems.

Ordering Table

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

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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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