We encounter various names for flanges in our work in France, such as blind flange, flange cover, blind flange, cover plate, plug plate, and sealing cover, among others. Generally speaking, they all refer to the meaning of blind flange.
If there must be a distinction, it is that the flange is a type of blind plate.
Franco Cover isFrench bolt blind plateBlind plates come in various forms, not just flanged covers, but also include welded blind plates, clamped blind plates, and more.
The function of a blind flange is to seal off a pipeline, but not necessarily; the term might differ in other contexts. In such cases, what is sealed off is something similar to a pipeline, like a manhole cover. It is essentially a flange cover, but what it seals off is not a pipeline. As the name suggests, the "blind" determines its function, while the "flange" determines its shape.
Blind flange covers imply the meaning of both blind plates and caps.
The blind flange production process mainly includes forging, casting, and cutting. There are various types of sealing surfaces, such as flat, convex, concave-convex, tenon-slot, and ring-connection surfaces.