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Swagelok VCR Copper (Cu) Gaskets

Swagelok VCR Copper (Cu) Gaskets

Swagelok VCR Copper (Cu) Gaskets: Reliable Soft-Metal Sealing for Low-Pressure Gas and UHV Systems

Swagelok VCR Copper (Cu) Gaskets are precision-machined, annealed soft-metal gaskets designed to create leak-tight, metal-to-metal face seals in Swagelok VCR fittings. Tailored for low-pressure gas systems and ultra-high vacuum (UHV) environments, these copper gaskets compress uniformly against the sealing surfaces of male and female VCR components, forming repeatable, high-integrity connections without the use of elastomers.

Ideal for systems where bakeout temperatures are moderate and where cleanliness, purity, and vacuum integrity are non-negotiable, VCR copper gaskets are a dependable choice for scientific, semiconductor, and analytical gas handling applications.

Key Features of Swagelok VCR Copper (Cu) Gaskets:

  • Soft-Metal Face-Seal Technology
    Provides a crushable metal seal between VCR components, ensuring excellent gas-tight performance in low-pressure and UHV systems.

  • UHV Compatibility
    Fully rated for use in ultra-high vacuum conditions, with sealing capability down to 10⁻⁹ Torr, supporting critical applications like mass spectrometry, helium leak detection, and thin-film deposition tools.

  • High-Temperature Resistance
    Operates reliably up to 204°C, making copper gaskets ideal for standard bakeouts, low-to-moderate thermal cycling, and regulated gas transfer lines.

  • Versatile Integration
    Compatible with all Swagelok VCR fittings—male or female unions, elbows, tees, and adapters—offering system-wide sealing consistency.

  • Single-Use Design for Maximum Seal Integrity
    Designed to deform under load and form a perfect metal seal on first use, ensuring no reinstallation risk, leakage, or contamination.

Typical Applications:

  • Sealing Swagelok VCR face-seal joints in lecture bottle regulator setups

  • Vacuum line assembly in UHV systems, gloveboxes, or load-lock chambers

  • Gas routing in analytical labs or leak-check rigs requiring low-dead-volume sealing

  • Controlled gas delivery in semiconductor fabs or materials science labs

TFM also supplies VCR stainless steel gaskets for high-temperature applications, as well as a full line of Swagelok VCR fittings, nuts, caps, and adapter assemblies—giving you complete control over your UHV or high-purity gas system design.

Ordering Table

Reference Material Tube OD 1 Part Number
VCR Gasket Copper 1/8" 2XVCR-GAC
VCR Gasket Copper 1/4" 4XVCR-GAC
VCR Gasket Copper 1/2" 8XVCR-GAC
VCR Retainer Assembly Copper 1/4" 4XVCR-GACR
VCR Retainer Assembly Copper 1/2" 8XVCR-GACR
Reference Material Tube OD 1 Part Number

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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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