Common materials of flange cover include: carbon steel, alloy steel, stainless steel, aluminum material, etc.
Flange cover, also known as blind flange or blind flange, belongs to the national standard flange standard system. The middle of the blind flange is solid, with bolt holes around it. It looks like an iron cover, so it is also called a flange cover. Stainless steel flange cover is called stainless steel flange cover. Blind flange can be flat or convex, concave and convex surface, tenon and groove surface and ring joint surface, but it does not have a neck like butt welding flange (what is butt welding flange). In a word, the purpose of blind flange is to block the pipe mouth and prevent the material in the pipe from overflowing, which is generally used at the end of water supply branch pipe. In addition, temporary blocking is used in the pressure test of some temporary pipe sections. Some pipes are directly added with valves, and some of the original pipelines are not used now, so blind flange is used.
