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UNI EN 12952-3 : 2012

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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WATER-TUBE BOILERS AND AUXILIARY INSTALLATIONS - PART 3: DESIGN AND CALCULATION FOR PRESSURE PARTS OF THE BOILER

Superseded date

07-12-2022

Published date

02-02-2012

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviations
5 General
6 Calculation temperature and nominal
   design stress
7 Cylindrical shells of drums and headers
   under internal pressure
8 Openings and branches in cylindrical
   shells of drums and headers and integral
   tubes
9 Headers and plain tubes of rectangular
   section
10 Ends and spherical shells
11 Tubes
12 Pressure parts of irregular shape
13 Fatigue
Annex A (normative) - Calculation of tube bends
        and elbows
Annex B (normative) - Fatigue cracking -
        Design to allow for fluctuating stress
Annex C (informative) - Examples of calculating
        the effects of fatigue
Annex D (informative) - Physical properties of
        steels
Annex E (informative) - Significant technical
        changes between this European Standard
        and the previous edition
Annex ZA (informative) - Clauses of this
         European Standard addressing essential
         safety requirements of the Pressure
         Equipment Directive 97/23/EC
Bibliography

Describes the requirements for the design and calculation of water-tube boilers as defined in EN 12952-1.

DocumentType
Standard
PublisherName
Ente Nazionale Italiano di Unificazione (UNI)
Status
Superseded
SupersededBy
Supersedes

EN ISO 4287:1998/A1:2009 GEOMETRICAL PRODUCT SPECIFICATIONS (GPS) - SURFACE TEXTURE: PROFILE METHOD - TERMS, DEFINITIONS AND SURFACE TEXTURE PARAMETERS
ISO 4287:1997 Geometrical Product Specifications (GPS) — Surface texture: Profile method — Terms, definitions and surface texture parameters
EN 1591-1:2013 Flanges and their joints - Design rules for gasketed circular flange connections - Part 1: Calculation
EN 10028-1:2017 Flat products made of steels for pressure purposes - Part 1: General requirements
EN 10164:2004 Steel products with improved deformation properties perpendicular to the surface of the product - Technical delivery conditions
EN 1759-1:2004 Flanges and their joint - Circular flanges for pipes, valves, fittings and accessories, Class designated - Part 1: Steel flanges, NPS 1/2 to 24
EN 12952-12:2003 Water-tube boilers and auxiliary installations - Part 12: Requirements for boiler feedwater and boiler water quality
EN 12952-1:2015 Water-tube boilers and auxiliary installations - Part 1: General
EN 13480-3:2017 Metallic industrial piping - Part 3: Design and calculation
ISO 7-1:1994 Pipe threads where pressure-tight joints are made on the threads Part 1: Dimensions, tolerances and designation
EN 12953-3:2016 Shell boilers - Part 3: Design and calculation for pressure parts
EN 12952-11:2007 Water-tube boilers and auxiliary installations - Part 11: Requirements for limiting devices of the boiler and accessories
SEW 310 : 1992 PHYSICAL PROPERTIES OF STEELS
EN 10266:2003 Steel tubes, fittings and structural hollow sections - Symbols and definitions of terms for use in product standards
EN 12952-2:2011 Water-tube boilers and auxiliary installations - Part 2: Materials for pressure parts of boilers and accessories
EN 12952-5:2011 Water-tube boilers and auxiliary installations - Part 5: Workmanship and construction of pressure parts of the boiler
1997/23/EC : 1997 DIRECTIVE 97/23/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL OF 29 MAY 1997 ON THE APPROXIMATION OF THE LAWS OF THE MEMBER STATES CONCERNING PRESSURE EQUIPMENT
EN 12952-6:2011 Water-tube boilers and auxiliary installations - Part 6: Inspection during construction; documentation and marking of pressure parts of the boiler

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