Single use seal on ultra high vacuum flanges. Copper solid gaskets fit between the same size UHV/CF flanges to make a impermeable seal. Copper is relatively soft, the steel knife edges of the flanges bite down on the copper as the flanges are tightened toward each other.
Lens Gasket is a line contact seal for use in high pressure piping systems and in pressure vessel heads. The lens cross section is a spherical gasket surface and requires special machining on the flanges. Since the contact area is very small and gasket seating pressures are very high, the gaskets will seat with a small bolt load.
100% PTFE resistant to all corrosive media. Soft, twistable and bendable, used continue their service and keep its best performance. Excellent anti-wriggle variation ability and cold current resistance. Even in case of cross change of temperature and pressure, good sealing can be assured