Summary:
This standard specifies requirements for circular flanges made from ductile, grey and malleable cast iron for DN 10 to DN 4000 and PN 2,5 to PN 100 (See 4.1 and 4.2 for information regarding allowed DN, PN and DN-PN combination).This standard specifies the types of flanges and their facings, dimension and tolerances, bolt sizes, surface finish of jointing faces, marking, testing, quality assurance and materials together with associated pressure/temperature (p/T) ratings.
Keywords:
Accessories, Cast-iron, Cast-iron pipe, Cast-iron pipelines, Contact surfaces, Definitions, Dimensions, Finishes, Fittings, Flanged fittings, Flanges, Grey cast-iron, Industrial pipework systems, Iron, Joints, Lamellar graphite, Marking, Materials, Metal conduits, Nodular graphites, Pipe couplings, Pipes, Products, Round flange, Sealing surfaces, Specification (approval), Tolerances (measurement), Valves