1PC High Vacuum Copper Gaskets for 4-1/2 in CF , Conflat Flange DN63

Features:

• A Copper Gasket is used to mate two Conflat CF vacuum flanges together. These conflat copper conflat gaskets fit a conflat flange size of 4 1 2 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.