Alloy Steel Pipe Flange DN300 PN16 A parts parts between the shaft

Fange, also called a flange disk or flange. The flanges are interconnected parts between shaft and shaft for connections between pipe ends and flanges on the inlet and outlet of equipment for connections between two devices such as reducer flanges.
Flange connection or flange joint means the removable connection of flanges, gaskets and bolts as a set of combined sealing structures. Water pumps and valves, when connection with the pipe, parts of these equipment are also made into a corresponding flange shape, also known as flange connections. All connecting parts that are bolted and enclosed around the two planes are generally called "flange", such as the connection of ventilation pipes, which can be called "flange parts". But this connection is only a part of an equipment, such as the flange and water pump connection, it is not easy to call the water pump "flange class parts". The smaller ones, such as valves, can be called "flange class parts".