CF to ASA Nipple—Flat & Grooved

CF to ASA Nipple—Flat & Grooved: Cross-Standard Vacuum Transitions with ConFlat® and ASA Flanges

The CF to ASA Nipple—Flat & Grooved by TFM is engineered to connect ConFlat® (CF) flanges to ASA flanges, enabling seamless transitions between two widely used vacuum flange standards. These nipples are fabricated from 304L stainless steel tubing, offering excellent corrosion resistance, weldability, and UHV compatibility for demanding vacuum environments.

Each adapter features a CF knife-edge flange on one end for copper gasket sealing, and an ASA flange on the other, available in either a flat-face design for metal-to-metal contact or a grooved version for o-ring sealing. This allows users to choose the sealing configuration that best fits their system’s pressure and cleanliness requirements.

Key Features of CF to ASA Nipple—Flat & Grooved:

• CF to ASA Compatibility
  Adapts standard CF flanges to either flat ASA flanges or grooved ASA flanges, providing a bridge between UHV and high-vacuum flange systems.

• Flat & Grooved ASA End Options
  The flat ASA variant is ideal for metal gasket or face-seal applications, while the grooved ASA end supports elastomeric o-ring sealing.

• 304L Stainless Steel Construction
  Designed for long-term reliability, the nipple body and flanges are made from UHV-compatible stainless steel, suitable for bake-outs and cleanroom environments.

• Leak-Tight Sealing Performance
  When installed with the correct gaskets and hardware, CF to ASA Nipples—Flat & Grooved provide leak-free connections down to 10⁻⁹ torr or better.

• Standard and Custom Sizes
  TFM offers a variety of common flange size combinations (e.g., CF40 to ASA 2″, CF63 to ASA 4″) and can fabricate custom lengths or flange pairings upon request.

Applications:

• Bridging CF instrumentation to ASA vacuum chamber ports

• Retrofitting older ASA systems with modern CF hardware

• Supporting hybrid UHV/HV test stands, analytical tools, or beamlines

• Enabling modular builds that combine American and international flange types

• Integrating components like gauges, feedthroughs, or viewports across standards

TFM also manufactures ASA weld stubs, CF rotatable flanges, and adapter crosses, offering full support for mixed-flange vacuum system configurations. Whether you’re upgrading or expanding, the CF to ASA Nipple—Flat & Grooved ensures structural integrity and leak-tight performance across flange standards.