prEN 1092-3

Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, PN designated - Part 3: Copper alloy flanges prEN 1092-3

Scope

This standard specifies requirements for circular copper alloy and composite flanges in PN designations from PN 6 to PN 40 and nominal sizes from DN 10 to DN 1800. This standard specifies the types of flanges and their facings, dimensions and tolerances, bolt sizes, surface finish of facings, marking, testing, quality assurance and materials together with associated pressure/ temperature (p/T) ratings.