EN 1092-1 European flange specification guide: PN6 to PN400, Type 01, 02, 05, 11, 12, 13, 21, facing types A-H, material groups, dimensions. Quote in 30 min.
EN 1092-1 is the harmonized European standard for circular steel flanges. Replacing obsolete national standards like DIN 2501 across the EU, it standardizes PN pressure designations and facing types A through H.
EN 1092-1 specifies requirements for circular steel flanges in PN designations from PN 2.5 to PN 400 and nominal sizes from DN 10 to DN 4000.
A: B1 is standard raised face roughness (Ra 3.2 to 12.5 µm) for PN 2.5 to PN 40. B2 is fine turned surface finish (Ra 0.8 to 3.2 µm) required for higher pressure PN ratings (PN 63 and above).
Get full dimensional charts and written quotation in 30 minutes.
Let our experts take over from here!