Titanium flanges are generally made of pure titanium, with holes on it, and bolts make the two flanges tightly connected. The flanges are sealed with gaskets. Flanged pipe fittings refer to pipe fittings with flanges (lugs or sockets).
It can be made by casting (not shown in the picture), it can also be formed by screw connection or welding. The flange connection (flange, joint) is composed of a pair of flanges, a gasket, and several bolts and nuts. The gasket is placed between the sealing surfaces of the two flanges. After the nut is tightened, the specific pressure on the gasket surface reaches a certain value and deforms and fills up the unevenness of the sealing surface to make the connection tight and leak-proof