BS EN 1092-2:2023

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Flanges and their joints. Circular flanges for pipes, valves, fittings and accessories, PN designated – Cast iron flanges

Published By	Publication Date	Number of Pages
BSI	2023	64

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Categories: 23.040.60 - Flanges, couplings and joints, BSI

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Description

This document 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 and PN. This document 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.

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PDF Pages	PDF Title
2	undefined
7	1 Scope 2 Normative references 3 Terms and definitions
9	4 Designation and types 4.1 Range of DN 4.2 Range of PN designations 4.3 Types of flanges 4.4 Standard designation
10	4.5 Information to be supplied by the purchaser 5 General requirements 5.1 Flange materials 5.2 Repairs by welding 5.3 Bolting 5.4 Gaskets 5.5 Pressure/Temperature ratings (p/T) 5.5.1 General
11	5.5.2 p/T rating of flanged joints 5.6 Dimensions 5.7 Flange facings 5.7.1 Types of facings
12	5.7.2 Jointing face finish 5.8 Spot facing or back facing 5.9 Tolerances
13	5.10 Marking and stamping 5.10.1 Marking 5.10.2 Stamping 5.10.3 Omission of markings 5.11 Quality assurance 5.11.1 General 5.11.2 Quality assurance system
56	Table 13 — Dimensions of PN 100 flanges
61	Annex A (normative)Information to be supplied by the purchaser
62	Annex B (Informative)NOTES to Tables 6 to 13

Additional information

Status	Definitive
Pages	64
Publication Date	2023-11-29
ISBN	978 0 539 21949 4
Standard Number	BS EN 1092-2:2023
Title	Flanges and their joints. Circular flanges for pipes, valves, fittings and accessories, PN designated – Cast iron flanges
Identical National Standard Of	EN 1092-2
Replaces	BS EN 1092-2:1997
Descriptors	Grey cast-iron, Dimensions, Pressure, Thickness, Circular shape, Temperature, Ratings, Pipe fittings, Pipe couplings, Malleable cast-iron, Roughness (surface), Designations, Dimensional tolerances, Marking, Spheroidal-graphite cast-iron, Preferred sizes, Flanges, Flange facings, Diameter, Grades (quality)
Publisher	BSI
Committee	PSE/15
ICS Codes	23.040.60 - Flanges, couplings and joints

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BS EN 1092-2:2023

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