Larson Electronic Glass’s industry standard CF-type UHV flanges offer reliable sealing performance as result of the design geometry which “captures” the gasket material.
These CF flanges have a conical sealing edge that is pressed into the top and bottom surfaces of an OFHC copper gasket, a lateral cold flow of the gasket occurs. This cold flow is limited by the vertical flange wall. Further material flow is severely limited and high interface pressures are developed. These pressures cause gasket material to fill surface imperfections and produce a highly reliable seal. At high temperatures, the “capturing” geometry maintains high pressure despite of the gasket material softening.
Request a quote on CF flanges for your UHV application, or contact Larson Electronic Glass for more information.
Larson Electronic Glass offers CF flanges available 1.33" diameter to 10" diameter in blank and various bore sizes.