Stainless Steel Flanges

Stainless steel flange, also called flange flanged disc or flange. Flange is a shaft and shaft interconnection parts, used for the connection between the end of the pipe; also used in the import and export of equipment on the flange, used for the connection between the two devices, such as reducer flange. Flange connection or flange joint, refers to the flange, gasket and bolt three interconnected as a group of combined sealing structure of the detachable connection. Pipe flange refers to the piping device in the piping flange, used in the equipment refers to the import and export flange of the equipment. There are holes on the flange, and the bolts make the two flanges tightly connected. Gasket sealing between flanges.

• Basic characteristics of flanges

The basic characteristics of flanges are composed of bolt holes, sealing surfaces, connecting pipe holes, bolt hole centre distance, flange outer diameter, nominal size, nominal pressure and other main parameters. Different flanges of the above parameters will be different, selection should pay attention to the matching use. For example, the number of flange bolt holes and the diameter of bolt holes should be the same, otherwise, pair assembly cannot be realised and the connection and sealing function of flanges cannot be completed.
In flanges, nominal size DN and nominal pressure PN are two invisible basic parameters. The nominal size DN does not refer to the diameter of the flange connection hole nor to the outer diameter of the steel pipe connected to the flange, it is the nominal size of the flange, which indicates the size of the flange, numerically the same as the nominal size of the steel pipe with which it is connected. The nominal pressure of the flange, PN, defines the pressure range in which the flange can be used. The nominal size DN and nominal pressure PN of the flange as well as the specific values of other parameters are printed on the cylindrical surface of the flange in the form of steel stamps, which is convenient for users to choose.
The nominal pressure range of flanges is PN2.5~PN160, i.e. PN2.5, PN6, PN10, PN16, PN25, PN40, PN63, PN100, PN160 nine grades, and the most contacted specifications are the three specifications: PN10, PN16, PN25, which represent the pressures of 1.0MPa, 1.6MPa, and 2.5MPa respectively. 2.5MPa.

SS Pipe Flange

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