A Copper Gasket is used to mate two Conflat (CF) vacuum flanges together. These conflat copper conflat gaskets fit a conflat flange size of 10 inches. The gasket material sealing two flanges determines the joint’s maximum temperature and, to an extent, the base pressure of the vacuum volume. Metal gaskets are impermeable to gases and withstand moderately high temperatures indefinitely. The normal gaskets for stainless steel CF flanges are punched from 1/4 hard, high purity, oxygen-free (OFHC) copper stock. The gaskets are then chemically cleaned and processed to minimize scratches and burrs. ConFlat (CF) flanges are used for ultra-high vacuum applications. These fittings use a copper gasket and knife-edge flanges to achieve the high vacuum seal and can operate down to 10-13 torr (10-11 Pa) and can be heated to 450 °C for bake-out.

Product description: OFHC Copper Gaskets for CF Flanges We manufacture a full range of OFHC Copper and elastomeric fluorocarbon gaskets for CF flanges. Metal gaskets are impermeable to gases and withstand moderately high temperatures indefinitely. The CF flange is the most widely used flange type for high vacuum and UHV applications. These flanges must be the same outer dimension. Many gauges, instruments, accessories and feedthroughs are available on this flange system. Specifications: CF Flange Gaskets: Copper -The normal gaskets for stainless steel CF flanges are punched from 1/4 hard, high purity, oxygen-free (OFHC) copper stock. The gaskets are then chemically cleaned and processed to minimize scratches and burrs. Pressure range: 1 10-13 hPa to ambient pressure Temperature range: -196 to 200 °C For single use only CF Flange Size: CF 10 inch Common Dimensions: Flange Outer Diameter (OD) 10" Package Contains: 1 X CF Flange (Conflat) Copper Gaskets