Concave convex flange (MFM), concave convex flange, concave convex stainless steel flange, concave flange, convex flange, stainless steel flange, butt welding flange, concave convex flange picture, stainless steel flange manufacturer

The sealing surface of a pair of flanges is concave and convex.

Concave convex flange: it is often used with butt welding and socket type. It is not often used in American standard flange. It is commonly used in pn4.0 and pn6.4mpa grade in "European flange". However, it is not convenient to replace the gasket.