GASKET AND FLANGE CONNECTION STRUCTURE OF PIPING MATERIAL USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a gasket capable of being used even in a case of connecting a flange of a different flange surface, and preventing partial fastening to exhibit high sealability, and a flange connection structure of a piping material using the gasket.;SOLUTION: A substantially annular core grid 30 is coated with a coating part 31, and an annular seal surface 32 is formed on both surfaces. The annular seal surface 32 enables contact seal to all flange surfaces 20, 21, 22 of a plane seat-shaped flange, whole surface seal-shaped flange and groove-shaped flange, and can be used in all the flanges.;SELECTED DRAWING: Figure 3;COPYRIGHT: (C)2017,JPO&INPIT