BS EN 1092-2:1997
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Flanges and their joints. Circular flanges for pipes, valves, fittings and accessories, PN designated Cast iron flanges
Hardcopy , PDF
29-11-2023
English
15-09-1997
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Foreword
Introduction
1 Scope
2 Normative references
3 Definitions
3.1 Flange
3.2 DN (nominal size)
3.3 PN
3.4 Ductile iron
3.5 Grey iron
3.6 Malleable iron
3.7 Joint
4 Designation and types
4.1 Range of DN
4.2 Range of PN designations
4.3 Types of flanges
4.4 Standard designation
4.5 Information to be supplied by the purchaser
5 General requirements
5.1 Flange material
5.2 Repairs by welding
5.3 Bolting
5.4 Gaskets
5.5 Pressure/Temperature (p/T) ratings
5.6 Dimensions
5.7 Flange facings
5.8 Spot facing or back facing
5.9 Tolerances
5.10 Marking and stamping
5.11 Quality assurance
Annex A (normative) Information to be supplied by the
purchaser
Annex B (informative) Notes to tables 6 to 12
Annex C (informative) Bibliography
Tables
1 Numerical values of the surface finish parameters
(Ra and Rz) of flange jointing faces
2 Synoptic table for ductile iron flanges
3 Synoptic table for grey iron flanges
4 Synoptic table for malleable iron flanges
5 Dimensions for type B flange facings
6 Dimensions of PN 2,5 flanges
7 Dimensions of PN 6 flanges
8 Dimensions of PN 10 flanges
9 Dimensions of PN 16 flanges
10 Dimensions of PN 25 flanges
11 Dimensions of PN 40 flanges
12 Dimensions of PN 63 flanges
13 Tolerances on dimensions
14 Materials and assigned PN values
15 Pressure/temperature ratings for high strength
ductile iron flanges
16 Pressure/temperature ratings for low strength ductile
iron flanges
17 Pressure/temperature ratings for grey iron flanges
18 Pressure/temperature ratings for malleable iron
flanges
Figures
1 Types of flanges
2 Flange facing types A and B
3 Dimensions of PN 2,5 flanges
4 Dimensions of PN 6 flanges
5 Dimensions of PN 10 flanges
6 Dimensions of PN 16 flanges
7 Dimensions of PN 25 flanges
8 Dimensions of PN 40 flanges
9 Dimensions of PN 63 flanges
Defines requirements for circular flanges made from ductile, grey and malleable cast iron for DN 10 to DN 4000 and PN 2,5 to PN 63. Defines flange type and facings, dimensions and tolerances, bolt sizes, surface finishes of jointing faces, marking, testing quality assurance and materials in addition to associated pressure/temperature (p/T) ratings.
| Committee |
PSE/15
|
| DevelopmentNote |
Supersedes BS 4504-3.2(1989) and 93/707537 DC. (07/2005)
|
| DocumentType |
Standard
|
| Pages |
34
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| Standards | Relationship |
| UNE-EN 1092-2:1998 | Identical |
| UNI EN 1092-2 : 1999 | Identical |
| NBN EN 1092-2 : 1997 | Identical |
| I.S. EN 1092-2:1997 | Identical |
| SN EN 1092-2 : 1997 | Identical |
| NF EN 1092-2 : 1997 | Identical |
| NS EN 1092-2 : 1ED 1997 | Identical |
| EN 1092-2:1997 | Identical |
| NEN EN 1092-2 : 1997 | Identical |
| ISO 7005-2:1988 | Similar to |
| ONORM EN 1092-2 : 1997 | Identical |
| DIN EN 1092-2:1997-06 | Identical |
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| 04/30082123 DC : DRAFT MAY 2004 | BS 5163-1 - VALVES FOR WATERWORKS PURPOSES - PART 1: PREDOMINANTLY KEY-OPERATED CAST IRON GATE VALVES - CODE OF PRACTICE |
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| 11/30237359 DC : 0 | BS 8561 - MECHANICAL FITTINGS FOR USE IN THE REPAIR, CONNECTION AND RENOVATION OF PRESSURIZED WATER SUPPLY PIPELINES - SPECIFICATION |
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| BS EN 1514-3:1997 | Flanges and their joints. Dimensions of gaskets for PN-designated flanges Non-metallic PTFE envelope gaskets |
| BS 5502-25:1991 | Buildings and structures for agriculture Code of practice for design and installation of services and facilities |
| BS EN 1514-4:1997 | Flanges and their joints. Dimensions of gaskets for PN-designated flanges Corrugated, flat or grooved metallic and filled metallic gaskets for use with steel flanges |
| BS EN ISO 6708:1996 | Pipework components. Definition and selection of DN (nominal size) |
| BS EN 1333:2006 | Flanges and their joints. Pipework components. Definition and selection of PN |
| ISO 5922:2005 | Malleable cast iron |
| ISO 887:2000 | Plain washers for metric bolts, screws and nuts for general purposes General plan |
| PREN 1092-1 : DRAFT 2016 | FLANGES AND THEIR JOINTS - CIRCULAR FLANGES FOR PIPES, VALVES, FITTINGS AND ACCESSORIES, PN DESIGNATED - PART 1: STEEL FLANGES |
| ISO 2632-3:1979 | Roughness comparison specimens Part 3: Cast surfaces |
| ISO 13:1978 | Grey iron pipes, special castings and grey iron parts for pressure main lines |
| ISO 468:1982 | Surface roughness — Parameters, their values and general rules for specifying requirements |
| ISO 185:2005 | Grey cast irons Classification |
| BS EN ISO 9002:1994 | Quality systems. Model for quality assurance in production, installation and servicing |
| BS EN 545:2010 | Ductile iron pipes, fittings, accessories and their joints for water pipelines. Requirements and test methods |
| ISO 2531:2009 | Ductile iron pipes, fittings, accessories and their joints for water applications |
| ISO 5458:1998 | Geometrical Product Specifications (GPS) Geometrical tolerancing Positional tolerancing |
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