Pipe flange refers to the flange of piping fittings, and for equipment, refers to the inlet and outlet flange of equipment. There are holes in the flange and bolts to tighten the two flanges. Gasket seals between flanges. Flange pointsThreaded connections(screw connection) flange,The welding of the flangeAnd clip flange. Flanges are used in pairs, low pressure pipe can use wire flange, more than four kilograms of pressure to useThe welding of the flange. Seal between the flanges and secure with bolts. Different pressure flange thickness is different, they are usedboltIs also different. Pumps and valves, when connected to pipes, are also made into corresponding flange shapes, also known as flange connections. The connection parts that are connected with bolts at the periphery of two planes and closed at the same time are generally called \"flanges\", such as the connection of ventilation ducts, this kind of part can be called \"flange parts\". But this connection is only part of a device, such as a flange andThe water pumpConnection, it is not good to call the pump \"flange parts\". Relatively small such as valves, can be called \"flange parts.\"