This European Standard for a single series of flanges specifies requirements for circular steel flanges in PN designations PN 2,5 to PN 400 and nominal sizes from DN 10 to DN 4000.<\/p>\n
This European Standard specifies the flange types and their facings, dimensions, tolerances, threading, bolt sizes, flange jointing face surface finish, marking, materials, pressure\/ temperature ratings and approximate flange masses.<\/p>\n
For the purpose of this European Standard, \u201cflanges\u201d include also lapped ends and collars.<\/p>\n
This European Standard applies to flanges manufactured in accordance with the methods described in Table 1.<\/p>\n
Non-gasketed pipe joints are outside the scope of this European Standard.<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 2<\/td>\n | undefined <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | 1 Scope Normative references <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | Terms and definitions <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | Designation 4.1 General 4.2 Standard designation <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | General requirements 5.1 Materials 5.1.1 General 5.1.2 Methods of manufacture related to base material <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | Repairs by welding Bolting <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | Gaskets 5.5 Determination of p\/T ratings Dimensions Flanges and collars <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | Hubs Threaded flanges Bolt holes Lapped joints 5.6.6 Collar types Facings 5.7.1 Types of facings <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | 5.7.2 Jointing face finish 5.8 Surface finish of flanges and collars 5.8.1 Surface finish <\/td>\n<\/tr>\n | ||||||
| 20<\/td>\n | Spot facing or back facing of flanges Tolerances <\/td>\n<\/tr>\n | ||||||
| 21<\/td>\n | Marking General marking requirements Stamping Declaration of compliance <\/td>\n<\/tr>\n | ||||||
| 22<\/td>\n | 5.11 Welding 5.12 Inspection and testing 5.12.1 Inspection and testing of fusion welded joints <\/td>\n<\/tr>\n | ||||||
| 23<\/td>\n | 5.12.2 Inspection and testing of bent and electric welded flanges or collars from formed bars, sectional steel or band material <\/td>\n<\/tr>\n | ||||||
| 24<\/td>\n | 5.12.3 Inspection and testing of formed parts manufactured from base material other than forgings 5.12.3.1 Non-destructive testing 5.12.3.2 Destructive testing for heat treated or hot formed components <\/td>\n<\/tr>\n | ||||||
| 25<\/td>\n | 5.12.4 Inspection and testing of close die flanges 5.12.4.1 Tests to be carried out 5.12.4.2 Test units for mandatory tests 5.12.4.3 Preparation of samples and test pieces <\/td>\n<\/tr>\n | ||||||
| 26<\/td>\n | 5.12.4.4 Test methods 5.12.4.5 Repeated tests 5.12.4.6 Repeated heat treatment 5.12.5 Inspection and testing of other materials 5.13 Certificates <\/td>\n<\/tr>\n | ||||||
| 85<\/td>\n | Annex A (normative)Wall thickness and end preparation for flanges type 11, 34, 35, 36, 37 and pipe nominal thicknesses for the use with type 01 flanges A.1 Weld-end preparation for flanges types 11 and 34 <\/td>\n<\/tr>\n | ||||||
| 87<\/td>\n | A.2 Weld-end preparation for type 35 <\/td>\n<\/tr>\n | ||||||
| 89<\/td>\n | A.3 Weld end preparation for types 36 and 37 <\/td>\n<\/tr>\n | ||||||
| 91<\/td>\n | Annex B (informative)Material groups <\/td>\n<\/tr>\n | ||||||
| 93<\/td>\n | Annex C (informative)Approximate masses of flanges and collars <\/td>\n<\/tr>\n | ||||||
| 103<\/td>\n | Annex D (informative)Additional materials <\/td>\n<\/tr>\n | ||||||
| 105<\/td>\n | Annex E (normative)Basis of flange calculation E.1 General E.2 Calculation method E.3 Basic rules for calculation of flange connection E.3.1 General <\/td>\n<\/tr>\n | ||||||
| 106<\/td>\n | E.3.2 Flanges E.3.2.1 Flanges type 11, type 04 with type 34, type 05 E.3.2.2 Flanges types 35, 36 and 37 with type 02 E.3.2.3 Flanges type 01 E.3.3 Pipes <\/td>\n<\/tr>\n | ||||||
| 107<\/td>\n | E.3.4 Bolting\/Tightening E.3.5 Gasket <\/td>\n<\/tr>\n | ||||||
| 109<\/td>\n | Annex F (normative)Determination of p\/T ratings F.1 General F.1.1 Reference temperature (RT) F.1.2 Application limits and formulae F.2 Symbols, descriptions and units F.2.1 General <\/td>\n<\/tr>\n | ||||||
| 110<\/td>\n | F.2.2 p\/T ratings for materials with time independent nominal design stress F.2.3 p\/T ratings for materials with time dependent nominal design stress F.2.4 Reference value for thickness (vR) F.2.5 Nominal design stresses and safety factors for mean creep rupture strength <\/td>\n<\/tr>\n | ||||||
| 111<\/td>\n | F.2.6 Flanges made from steel castings F.2.7 Rounding of maximum allowable pressure at temperature <\/td>\n<\/tr>\n | ||||||
| 112<\/td>\n | Annex G (normative)p\/T ratings for a selection of EN materials G.1 General G.1.1 p\/T ratings G.1.2 Basics of determination of p\/T ratings (see Annex F) G.1.3 Application limits for creep range <\/td>\n<\/tr>\n | ||||||
| 113<\/td>\n | G.2 Non-austenitic steels G.2.1 General <\/td>\n<\/tr>\n | ||||||
| 114<\/td>\n | G.2.2 List of materials <\/td>\n<\/tr>\n | ||||||
| 115<\/td>\n | G.2.3 p\/T ratings <\/td>\n<\/tr>\n | ||||||
| 127<\/td>\n | G.3 Austenitic and austenitic-ferritic steels G.3.1 General G.3.2 List of materials <\/td>\n<\/tr>\n | ||||||
| 128<\/td>\n | G.3.3 p\/T ratings <\/td>\n<\/tr>\n | ||||||
| 140<\/td>\n | Annex H (informative)Rings for flanges with groove <\/td>\n<\/tr>\n | ||||||
| 141<\/td>\n | Annex I (informative)Flanges with fixed inner diameter I.1 General I.2 Scope <\/td>\n<\/tr>\n | ||||||
| 146<\/td>\n | Annex J (informative)Mating dimensions for flanges with higher DN <\/td>\n<\/tr>\n | ||||||
| 148<\/td>\n | Annex ZA(informative)Relationship between this European Standard and the Essential Requirements of EU Directive 2014\/68\/EU Pressure Equipment Directive aimed to be covered <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Flanges and their joints. Circular flanges for pipes, valves, fittings and accessories, PN designated – Steel flanges<\/b><\/p>\n |