Customer Support: 131 242

  • There are no items in your cart
We noticed you’re not on the correct regional site. Switch to our AMERICAS site for the best experience.
Dismiss alert

BS EN 1092-2:1997

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Flanges and their joints. Circular flanges for pipes, valves, fittings and accessories, PN designated Cast iron flanges
Available format(s)

Hardcopy , PDF

Superseded date

29-11-2023

Language(s)

English

Published date

15-09-1997

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
DIN EN 1092-2:1997-06 Identical

BS 8561:2013 Specification for mechanical fittings for use in the repair, connection and renovation of pressurized water supply pipelines. Requirements and test methods
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
BS EN 1514-1:1997 Flanges and their joints. Dimensions of gaskets for PN-designated flanges Non-metallic flat gaskets with or without inserts
DEFSTAN 02-375/2(2017) : 2017 VALVE DESIGN AND MANUFACTURE
11/30243193 DC : 0 BS 750 - SPECIFICATION FOR UNDERGROUND FIRE HYDRANTS AND SURFACE BOX FRAMES AND COVERS
BS 5163-1:2004 Valves for waterworks purposes Predominantly key-operated cast iron gate valves. Code of practice
BS 750:1984 Specification for underground fire hydrants and surface box frames and covers
BS 750:2012 Specification for underground fire hydrants and surface box frames and covers
BS 5991:2006 Specification for indirect gas fired forced convection air heaters with rated heat inputs greater than 330 kW but not exceeding 2 MW for industrial and commercial space heating. Safety and performance requirements (excluding electrical requirements) (2nd family gases)
BS PD5500(2006) : 2006 SPECIFICATION FOR UNFIRED FUSION WELDED PRESSURE VESSELS
BS 750:2006 Specification for underground fire hydrants and surface box frames and covers
BS 5990:2006 Specification for direct gas-fired forced convection air heaters with rated heat inputs greater than 330 kW but not exceeding 2 MW for industrial and commercial space heating. Safety and performance requirements (excluding electrical requirements) (2nd family gases)
11/30237359 DC : 0 BS 8561 - MECHANICAL FITTINGS FOR USE IN THE REPAIR, CONNECTION AND RENOVATION OF PRESSURIZED WATER SUPPLY PIPELINES - SPECIFICATION
12/30270677 DC : 0 BS 8561 - RENOVATION AND CONNECTION FITTINGS FOR USE ON WATER SUPPLY PIPES
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

View more information
$478.43
Including GST where applicable

Access your standards online with a subscription

Features

  • Simple online access to standards, technical information and regulations.

  • Critical updates of standards and customisable alerts and notifications.

  • Multi-user online standards collection: secure, flexible and cost effective.

Need help?
Call us on 131 242, then click here to start a Screen Sharing session
so we can help right away! Learn more