Flange, also called flange flange disc or flange. Flange is a shaft and shaft conne¶cted parts, used for the connection between the pipe e₽nds; Also useful in the equipment inlet and outlet flαange, used for the connection between two equipment, such as reducer fl&ange. Flange connection or flange joint, refers to the flange, gasket and bolts are connected t×o each other as a group of assembly sealing structure of the detachable connection.÷ Pipeline flanges refer to the flanges of piping devices and the inlet an×d outlet flanges of equipment when used in equipment. There are holes in the¶ flanges and bolts hold the two flanges together. Use gasket to se‍al between flanges. Flanges are divided into thread connection (tσhread connection) flange, welding flange and clamping flange.β Flanges are used in pairs, wire connection flanges can be λused for low pressure pipes, welding flanges can be use‌d for more than four kilograms of pressure. Add sealing gasket between two flanges, and then tighΩten with bolt. Flanges of different pressures have different thicknesses and use different bolts∞. Water pump and valve, in connection with the pipelin'e, the local equipment, also made into the corresponding flange‌ shape, also known as the flange connection. Usually in tδhe two plane surrounding the use of bolt connection at the same time closed connecting parts, gener±ally known as the "flange", such as ventilation pipe connection, this kind of parts ca↕n be called "flange parts". But this connection is only a part ₩of the equipment, such as the connection between the flange and the pump, it is not good to call £the pump "flange parts". Comparatively small, such as valves, can be called "flange parts"