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CF to Swagelok VCR® Adapter

CF to Swagelok VCR® Adapter

CF to Swagelok VCR® Adapter: UHV-Ready Metal Seal Transition for High-Purity Gas and Vacuum Integration

The CF to Swagelok VCR® Adapter from TFM delivers a precision-engineered solution for connecting ConFlat (CF) ultra-high vacuum flanges with Swagelok VCR® metal gasket face seal fittings. Designed for maximum purity, durability, and sealing integrity, this adapter is a critical component for vacuum systems, semiconductor gas lines, and research instrumentation where leak-tight performance and repeatable assembly are non-negotiable.

On one end, the CF flange provides a metal-to-metal knife-edge seal with a copper gasket, suitable for bakeable and UHV environments down to 10⁻⁹ torr. On the other, the Swagelok VCR® connector offers a metal gasket face seal system with radial compression, ensuring zero dead volume and compatibility with high-purity gas systems.

Key Features of CF to Swagelok VCR® Adapter:

  • Direct CF-to-VCR® Interface
    Allows seamless mating of CF flanges (e.g., DN16CF, DN35CF, DN63CF) with Swagelok VCR® male or female fittings, simplifying vacuum-to-process system design.

  • UHV-Compatible Performance
    The CF flange provides bakeable, leak-tight sealing with annealed copper gaskets, ideal for ultra-clean, high-vacuum environments.

  • Metal Gasket Sealing (VCR®)
    Swagelok VCR® fittings compress a replaceable metal gasket between flat, polished surfaces, forming a reliable, torque-free seal rated for repeated thermal cycling and high-pressure operation.

  • Material: 304 Stainless Steel
    Precision-machined for superior chemical resistance and structural integrity; suitable for cleanroom and corrosive environments.

  • Wide System Compatibility
    Adaptable to a variety of applications, with both male and female VCR® gland options and custom configurations available upon request.

Ideal Applications:

  • High-vacuum chambers connected to gas delivery or analysis systems

  • Semiconductor fabrication tools and load-lock interfaces

  • Leak-sensitive instrumentation in R&D or metrology

  • Cryogenic or corrosive environments requiring all-metal seals

  • Modular vacuum setups where fast, repeatable connections are needed

TFM also offers complementary components such as CF to Swagelok® tube adapters, CF-to-NPT transitions, VCR® caps/plugs, and UHV flange hardware kits—ensuring full system integration from chamber to gas panel.

In conclusion, the CF to Swagelok VCR® Adapter by TFM serves as a trusted link between the vacuum world and high-purity gas delivery systems. Its UHV-compatible design, metal-sealing technology, and robust 304 stainless steel construction make it indispensable for advanced scientific and industrial vacuum infrastructure.

Ordering Table

Flange Size/OD Type Drawing Fitting Part Number
DN16CF (1.33" OD) Female Tooltip 1/8" VCR F0133X2FVCR
DN16CF (1.33" OD) Male Tooltip 1/8" VCR F0133X2MVCR
DN16CF (1.33" OD) Female Tooltip 1/4" VCR F0133X4FVCR
DN16CF (1.33" OD) Male Tooltip 1/4" VCR F0133X4MVCR
DN16CF (1.33" OD) Female Tooltip 3/8" VCR F0133X6FVCR
DN16CF (1.33" OD) Male Tooltip 3/8" VCR F0133X6MVCR
DN16CF (1.33" OD) Female Tooltip 1/2" VCR F0133X8FVCR
DN16CF (1.33" OD) Male Tooltip 1/2" VCR F0133X8MVCR
DN35CF-DN40CF (2.75" OD) Male Tooltip 1/8" VCR F0275X2MVCR
DN35CF-DN40CF (2.75" OD) Female Tooltip 1/4" VCR F0275X4FVCR
DN35CF-DN40CF (2.75" OD) Male Tooltip 1/4" VCR F0275X4MVCR
DN35CF-DN40CF (2.75" OD) Female Tooltip 3/8" VCR F0275X6FVCR
DN35CF-DN40CF (2.75" OD) Male Tooltip 3/8" VCR F0275X6MVCR
DN35CF-DN40CF (2.75" OD) Female Tooltip 1/2" VCR F0275X8FVCR
DN35CF-DN40CF (2.75" OD) Male Tooltip 1/2" VCR F0275X8MVCR

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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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