Double Sided 2 – 3/4in Conflat Flange

Double-Sided 2.75″ ConFlat (CF) Vacuum Flange

The Double-Sided 2.75-inch ConFlat (CF) Vacuum Flange is a stainless steel ultra-high vacuum (UHV) fitting designed to join two compatible 2.75-inch CF vacuum components while maintaining a reliable, leak-tight metal seal. Featuring knife-edge sealing surfaces on both sides, this double-sided flange uses annealed copper gaskets (sold separately) to create dependable vacuum connections capable of achieving pressures in the UHV range.

Manufactured from durable stainless steel, this flange offers excellent resistance to corrosion, high temperatures, and repeated bake-out cycles. It is commonly used in research laboratories, semiconductor manufacturing, surface science, accelerator facilities, and industrial vacuum systems where dependable vacuum integrity is essential.

The standard 2.75-inch CF flange size (also known as DN40CF) is one of the most widely used ConFlat standards, making this component compatible with a broad range of vacuum chambers, viewports, valves, feedthroughs, adapters, and instrumentation from many manufacturers.