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Annealed Nickel Gaskets for ConFlat (CF) UHV Flanges

Annealed Nickel Gaskets for ConFlat (CF) UHV Flanges

Comprehensive Gasket Solutions for CF Flanges

TFM offers an extensive selection of gaskets for CF flanges, designed to fulfill your specific application requirements. Our metal gaskets provide excellent gas impermeability and are capable of withstanding moderately high temperatures indefinitely. The CF flange is the most widely used type in high vacuum and ultra-high vacuum (UHV) applications, supporting a diverse range of gauges, instruments, accessories, and feedthroughs for enhanced functionality in your vacuum systems.

Ordering Table

Drawing Flange OD Gasket ID Gasket OD Part Number
Tooltip DN16CF (1.33" OD) 0.640 0.835 GA-0133NIA
Tooltip DN35CF-DN40CF (2.75" OD) 1.535 1.895 GA-0275NIA
Tooltip DN50CF (3.375" OD) 2.008 2.425 GA-0337NIA
Tooltip DN63CF (4.50" OD) 2.520 3.241 GA-0450NIA
Tooltip DN75CF (4.625" OD) 3.010 3.598 GA-0462NIA
Tooltip DN100CF (6.00" OD) 4.016 4.740 GA-0600NIA
Tooltip DN160CF (8.00" OD) 6.024 6.740 GA-0800NIA
Tooltip DN200CF (10.00" OD) 8.031 8.740 GA-1000NIA

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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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