2020 specifications flange

2020 specifications flange is used to connect piping, fittings or equipment parts, there are also used in the flange on the equipment import and export, used for the connection between the two devices, such as reducer flange. Flange connection is made up of flanges, gaskets and bolts are mutually connected into a set of removable seal structure, fixed on a flange, a first flange pad to pad, bolt fastening together, this completes the flange connection.