Thin Film Materials Logo
Generic selectors
Exact matches only
Search in title
Search in content
Post Type Selectors
Annealed OFHC Copper Gaskets for ConFlat (CF) UHV Flanges

Annealed OFHC Copper Gaskets for ConFlat (CF) UHV Flanges

Annealed OFHC Copper Gaskets for ConFlat (CF) UHV Flanges

Annealed OFHC Copper Gaskets for ConFlat (CF) UHV Flanges, offered by TFM, are engineered to deliver unmatched vacuum sealing performance in ultra-high vacuum (UHV) and high-vacuum environments. These gaskets are made from high-purity oxygen-free high-conductivity (OFHC) copper and undergo a controlled annealing process to maximize softness and ductility—ensuring a tight, reliable seal every time.

Key Features

  • Ultra-Pure OFHC Copper Composition
    Manufactured from oxygen-free high-conductivity copper (typically >99.99% purity), these gaskets ensure extremely low outgassing and chemical reactivity, making them ideal for sensitive vacuum systems.

  • Annealed for Superior Sealing
    The annealing process softens the copper, allowing the gasket to conform precisely to the knife edges of ConFlat flanges. This ensures a consistent metal-to-metal seal, even in extreme UHV conditions.

  • UHV Compatibility
    Designed specifically for ConFlat (CF) UHV flanges, these gaskets can maintain vacuum integrity in pressures down to 10⁻¹¹ Torr, supporting applications that require the highest cleanliness and stability.

  • Temperature Resistant
    Withstand bake-out processes and operating temperatures up to 450°C in vacuum, making them suitable for demanding thermal cycles and degassing procedures.

  • Non-Magnetic and Chemically Inert
    The gaskets are non-magnetic and have no surface treatments or coatings, ensuring compatibility with magnetic-sensitive instruments and processes.

Applications

  • Ultra-High Vacuum Systems
    Used across UHV chambers in scientific research, material analysis, and vacuum coating industries where clean and reliable sealing is essential.

  • Surface Science Equipment
    Ideal for systems such as X-ray photoelectron spectroscopy (XPS), Auger electron spectroscopy (AES), and scanning tunneling microscopy (STM).

  • Cryogenics and Superconductivity
    Trusted in cryogenic systems for their excellent thermal conductivity and performance at low temperatures.

  • Accelerator and Synchrotron Facilities
    Essential for sealing vacuum beamlines and diagnostic equipment in high-energy physics environments.

  • Thin Film Deposition
    Used in sputtering and evaporation systems to preserve vacuum integrity and prevent contamination.

Specifications

  • Material: Annealed Oxygen-Free High Conductivity Copper

  • Purity: >99.99%

  • Hardness: Fully annealed (very soft, ductile)

  • Flange Compatibility: ConFlat (CF) style flanges

  • Vacuum Range: Down to 10⁻¹¹ Torr

  • Temperature Limit: Up to 450°C

  • Finish: Clean, burr-free edges for optimal sealing performance

  • Reusability: Single-use gasket; flanges are reusable

Advantages

  • Provides an ultra-clean seal with minimal risk of contamination

  • Ensures excellent vacuum performance over long-term use

  • Easily conforms to minor flange imperfections

  • No coatings or additives—ideal for ultra-clean applications

  • Low outgassing—critical for analytical instruments and high-precision systems

Why Choose TFM’s Annealed OFHC Copper Gaskets?

TFM offers precision-manufactured gaskets crafted to the most demanding standards in the vacuum industry. Every annealed OFHC copper gasket is carefully inspected to ensure consistent thickness, softness, and surface finish, delivering the reliable sealing performance our customers expect. Whether you’re working in advanced research, semiconductor fabrication, or high-vacuum processing, TFM gaskets provide dependable UHV sealing with industry-leading quality.

Ordering Table

Drawing Flange OD Gasket ID Gasket OD Gasket Thickness Part Number
Tooltip DN16CF (1.33" OD) 0.640 0.837 0.08 VZCUA19
Tooltip DN25CF (2.125" OD) 1.010 1.291 0.08 VZCUA25
Tooltip DN35CF-DN40CF (2.75" OD) 1.543 1.895 0.08 VZCUA38
Tooltip DN50CF (3.375" OD) 2.010 2.425 0.08 VZCUA54
Tooltip DN63CF (4.50" OD) 2.506 3.241 0.08 VZCUA64
Tooltip DN75CF (4.625" OD) 3.010 3.598 0.08 VZCUA76
Tooltip DN100CF (6.00" OD) 4.006 4.743 0.08 VZCUA100
Tooltip DN125CF (6.75" OD) 5.010 5.567 0.08 VZCUA125
Tooltip DN160CF (8.00" OD) 6.007 6.743 0.08 VZCUA150
Tooltip DN200CF (10.00" OD) 8.007 8.743 0.08 VZCUA200
Tooltip DN250CF (12.00" OD) 10.007 10.743 0.08 VZCUA250

Reviews

There are no reviews yet.

Be the first to review “Annealed OFHC Copper Gaskets for ConFlat (CF) UHV Flanges”

Your email address will not be published. Required fields are marked *

Related Products

Related products

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.

 

Shopping Cart
Scroll to Top