carbon steel flange

RTJ flange is like a flange cover, also called blind disk or flanged pipe plug. Blind flange has no holes in the centre, for to seal the pipe opening. So it's function is the same as the pipe plug or the pipe cap.

Plate flange is also named plain flange, flat flange and slip on flange etc. A plate flange is a flat, circular disk that is welded onto the end of a pipe and allows it to be bolted to another pipe. Typically used in fuel and water pipelines, the two plate flanges will be bolted together with a gasket in between them. The plate flange will have bolt holes all around the perimeter and will be used to create junctions, tees and joints.

Blind flange is like a flange cover, also called blind disk or flanged pipe plug. Blind flange has no holes in the centre, for to seal the pipe opening. So it's function is the same as the pipe plug or the pipe cap. The difference is blind flange is a detachable equipment, easy to replace or do maintenance.