METAL SEAL AND ITS MOUNTING AND USING METHOD

摘要

PURPOSE: To provide a metal seal having large amount of restoration with low fastening force. CONSTITUTION: The metal seal is an annular shape one as a whole which is interposed between a pair of flat surfaces parallel to each other. The metal seal has an intermediate base part 3, a first contact projecting part 11 and a second contact projecting part 12. The first contact projecting part 11 is projected near the inside diameter and the second projecting part is projected near the outside diameter. Elastic twisted deformation is produced around the intermediate base part 3 in a mounted and pressed state.