COMBINATION TYPE TOROIDAL GASKET FOR BALL VALVE

摘要

PROBLEM TO BE SOLVED: To provide a matching type toroidal gasket for a ball valve eliminating the risk of falling of a gasket by innovative combination and parts arrangement. SOLUTION: This gasket is constituted of a support 2 made of P.T.F.E and a gasket made of elastomer or other favorable materials. The gasket 7 is fixed on the support 2 by a cement means.