VCR-style (Vacuum Coupling Radiation) face seal fittings are high-purity, leak-tight fittings designed for cleanroom-type applications where contamination-free gas and fluid delivery is essential to the process. They are widely used in semiconductor manufacturing, aerospace, pharmaceuticals, and other industries requiring ultra-high purity (UHP) systems. Learn more about VCR-style fittings and how they can benefit your unique application.
Key Characteristics of VCR-Style Face Seal Fittings
Metal-to-Metal Sealing – Uses a metal gasket compressed between two precision-machined sealing beads to create a leak-free seal.
High-Purity Design – Ideal for applications where zero contamination is required, such as semiconductor and biotech industries.
Threaded Nut Assembly – A male and female nut are tightened to press the glands together, securing the seal.
Compatible with Ultra-High Vacuum and High-Pressure Systems – Can handle vacuum environments as well as high-pressure gas and fluid delivery.
Available in Various Materials – Typically made from 316L stainless steel, nickel, or other corrosion-resistant alloys for long-term durability.
Reusable with Removable Gaskets – While the fittings themselves can be reused, gaskets may need replacement after each use, depending on the application.
At Hy-Tech Fittings, our VCR-style face seal fittings were created to solve common problems faced by engineers while assembling and disassembling high-purity gas and fluid delivery systems.
A Brief History of Vacuuming Coupling Radius Fittings
The original vacuuming coupling radius (VCR®) fitting was developed by Swagelok in the mid-1960s, introducing this versatile technology to the world. VCR® fittings have since become a staple of the semiconductor industry, preventing intricate parts from coming in contact with the outside elements.
Necessity is the Mother of Invention
This quote, which was attributed to the Greek philosopher Plato over 2000 years ago, still rings true today. With dozens of variations and applications, VCR® fittings are being used by more manufacturers, scientists, and technologists than ever before.
This is why we innovated new VCR-style face seal fitting designs, optimizing all applications necessitating these integral parts.
Benefits of VCR-Style Face Seal Fittings
Leak-Tight Performance
- Designed for leak-free operation in critical gas and fluid systems.
- Provides a helium leak rate of 1×10⁻⁹ std cm³/sec, ensuring a secure, contamination-free seal.
Ultra-High Purity (UHP) Compatibility
- Essential for semiconductor and pharmaceutical applications where even trace contamination can cause failures.
- Prevents particle generation, ensuring clean gas and chemical delivery.
High Temperature and Pressure Resistance
- Can handle extreme temperatures and pressures without degrading or losing sealing capability.
- Suitable for applications involving aggressive chemicals, high-vacuum conditions, and ultra-clean environments.
Reliable and Durable Construction
- Made from electropolished 316L stainless steel, nickel, and other corrosion-resistant materials for long-term performance.
- Glands, nuts, and gaskets maintain their structural integrity even after multiple assembly cycles.
Modular and Reconfigurable
- Can be easily assembled, disassembled, and reconfigured, making them perfect for systems that require frequent maintenance or modifications.
- Compatible with various sizes and configurations to fit different system requirements.
Available with Multiple Gasket Options
- Compatible with flat, grooved, no-overtighten, and bore-line seal gaskets to optimize sealing performance for different applications.
- Grooved gaskets help prevent over-tightening and allow for multiple remakes in helium leak testing applications.